swift 6.0+ performance tweaks 3x-6x (#9067)

* start/stop measurements

* tweaks

* add 6.0 annotations

* remove some inlines

* address feedback

* address wasi + let

* adopt flex buffers

* flex buffers benchmarks

.bazelci/presubmit.yml

@@ -1,18 +1,60 @@
 ---
 buildifier: latest
-platforms:
+matrix:
-  ubuntu1804:
+  bazel:
+    - 7.x
+    - 8.x
+tasks:
+  verify_ubuntu2004:
+    platform: ubuntu2004
+    bazel: ${{ bazel }}
+    environment:
+      CC: clang
+      SWIFT_VERSION: "5.10"
+      SWIFT_HOME: "$HOME/swift-$SWIFT_VERSION"
+      PATH: "$PATH:$SWIFT_HOME/usr/bin"
+    shell_commands:
+      - "echo --- Downloading and extracting Swift $SWIFT_VERSION to $SWIFT_HOME"
+      - "mkdir $SWIFT_HOME"
+      - "curl https://download.swift.org/swift-${SWIFT_VERSION}-release/ubuntu2004/swift-${SWIFT_VERSION}-RELEASE/swift-${SWIFT_VERSION}-RELEASE-ubuntu20.04.tar.gz | tar xvz --strip-components=1 -C $SWIFT_HOME"
     build_targets:
     - "//..."
     test_targets:
     - "//..."
-  ubuntu2004:
+  verify_ubuntu2204:
+    platform: ubuntu2204
+    bazel: ${{ bazel }}
+    environment:
+      CC: clang
+      SWIFT_VERSION: "5.10"
+      SWIFT_HOME: "$HOME/swift-$SWIFT_VERSION"
+      PATH: "$PATH:$SWIFT_HOME/usr/bin"
+    shell_commands:
+      - "echo --- Downloading and extracting Swift $SWIFT_VERSION to $SWIFT_HOME"
+      - "mkdir $SWIFT_HOME"
+      - "curl https://download.swift.org/swift-${SWIFT_VERSION}-release/ubuntu2204/swift-${SWIFT_VERSION}-RELEASE/swift-${SWIFT_VERSION}-RELEASE-ubuntu22.04.tar.gz | tar xvz --strip-components=1 -C $SWIFT_HOME"
     build_targets:
     - "//..."
     test_targets:
     - "//..."
-  macos:
+  test_module_cpp:
+    platform: ubuntu2204
+    bazel: ${{ bazel }}
+    working_directory: tests/bazel_repository_test_dir
     build_targets:
     - "//..."
+  test_module_ts:
+    platform: ubuntu2204
+    bazel: ${{ bazel }}
+    working_directory: tests/ts/bazel_repository_test_dir
     test_targets:
     - "//..."
+  verify_macos:
+    platform: macos
+    bazel: ${{ bazel }}
+    xcode_version: "15.2"
+    build_targets:
+    - "//:flatbuffers"
+    - "//:flatc"
+    test_targets:
+    - "//tests:flatbuffers_test"

.bazelignore

@@ -0,0 +1,5 @@
+ts/node_modules
+
+# Test workspaces
+tests/bazel_repository_test_dir
+tests/ts/bazel_repository_test_dir

.bazelrc

@@ -0,0 +1,18 @@
+# We cannot use "common" here because the "version" command doesn't support
+# --deleted_packages. We need to specify it for both build and query instead.
+build --deleted_packages=tests/bazel_repository_test_dir,tests/ts/bazel_repository_test_dir
+query --deleted_packages=tests/bazel_repository_test_dir,tests/ts/bazel_repository_test_dir
+# Point tools such as coursier (used in rules_jvm_external) to Bazel's internal JDK
+# suggested in https://github.com/bazelbuild/rules_jvm_external/issues/445
+common --repo_env=JAVA_HOME=../bazel_tools/jdk
+common --action_env=JAVA_HOME=../bazel_tools/jdk
+# Workaround "Error: need --enable_runfiles on Windows for to support rules_js"
+common:windows --enable_runfiles
+# Swift is not required on Windows
+common:windows --deleted_packages=swift
+# Ignore warnings in external dependencies
+build --per_file_copt=external/.*@-Wno-everything --host_per_file_copt=external/.*@-Wno-everything
+# Honor the setting of `skipLibCheck` in the tsconfig.json file.
+common --@aspect_rules_ts//ts:skipLibCheck=honor_tsconfig
+# Use "tsc" as the transpiler when ts_project has no `transpiler` set.
+common --@aspect_rules_ts//ts:default_to_tsc_transpiler

.clang-format

@@ -1,13 +1,5 @@
 ---
 Language: Cpp
 BasedOnStyle: Google
-DerivePointerAlignment: false
-PointerAlignment: Right
-IndentPPDirectives: AfterHash
-Cpp11BracedListStyle: false
-AlwaysBreakTemplateDeclarations: false
-AllowShortCaseLabelsOnASingleLine: true
-SpaceAfterTemplateKeyword: false
-AllowShortBlocksOnASingleLine: true
 ...
 

.clang-tidy

@@ -0,0 +1,347 @@
+---
+FormatStyle: "file"
+WarningsAsErrors: "*"
+HeaderFilterRegex: ".*"
+Checks: "google-build-explicit-make-pair,
+         google-build-namespaces,
+         google-build-using-namespace,
+         google-default-arguments,
+         google-explicit-constructor,
+         google-global-names-in-headers,
+         google-objc-avoid-nsobject-new,
+         google-objc-avoid-throwing-exception,
+         google-objc-function-naming,
+         google-objc-global-variable-declaration,
+         google-readability-avoid-underscore-in-googletest-name,
+         google-readability-braces-around-statements,
+         google-readability-casting,
+         google-readability-function-size,
+         google-readability-namespace-comments,
+         google-runtime-int,
+         google-runtime-operator,
+         google-upgrade-googletest-case,
+         clang-analyzer-apiModeling.StdCLibraryFunctions,
+         clang-analyzer-apiModeling.TrustNonnull,
+         clang-analyzer-apiModeling.google.GTest,
+         clang-analyzer-apiModeling.llvm.CastValue,
+         clang-analyzer-apiModeling.llvm.ReturnValue,
+         clang-analyzer-core.CallAndMessage,
+         clang-analyzer-core.CallAndMessageModeling,
+         clang-analyzer-core.DivideZero,
+         clang-analyzer-core.DynamicTypePropagation,
+         clang-analyzer-core.NonNullParamChecker,
+         clang-analyzer-core.NonnilStringConstants,
+         clang-analyzer-core.NullDereference,
+         clang-analyzer-core.StackAddrEscapeBase,
+         clang-analyzer-core.StackAddressEscape,
+         clang-analyzer-core.UndefinedBinaryOperatorResult,
+         clang-analyzer-core.VLASize,
+         clang-analyzer-core.builtin.BuiltinFunctions,
+         clang-analyzer-core.builtin.NoReturnFunctions,
+         clang-analyzer-core.uninitialized.ArraySubscript,
+         clang-analyzer-core.uninitialized.Assign,
+         clang-analyzer-core.uninitialized.Branch,
+         clang-analyzer-core.uninitialized.CapturedBlockVariable,
+         clang-analyzer-core.uninitialized.UndefReturn,
+         clang-analyzer-cplusplus.InnerPointer,
+         clang-analyzer-cplusplus.Move,
+         clang-analyzer-cplusplus.NewDelete,
+         clang-analyzer-cplusplus.NewDeleteLeaks,
+         clang-analyzer-cplusplus.PlacementNew,
+         clang-analyzer-cplusplus.PureVirtualCall,
+         clang-analyzer-cplusplus.SelfAssignment,
+         clang-analyzer-cplusplus.SmartPtrModeling,
+         clang-analyzer-cplusplus.StringChecker,
+         clang-analyzer-cplusplus.VirtualCallModeling,
+         clang-analyzer-deadcode.DeadStores,
+         clang-analyzer-fuchsia.HandleChecker,
+         clang-analyzer-nullability.NullPassedToNonnull,
+         clang-analyzer-nullability.NullReturnedFromNonnull,
+         clang-analyzer-nullability.NullabilityBase,
+         clang-analyzer-nullability.NullableDereferenced,
+         clang-analyzer-nullability.NullablePassedToNonnull,
+         clang-analyzer-nullability.NullableReturnedFromNonnull,
+         clang-analyzer-optin.cplusplus.UninitializedObject,
+         clang-analyzer-optin.cplusplus.VirtualCall,
+         clang-analyzer-optin.mpi.MPI-Checker,
+         clang-analyzer-optin.osx.OSObjectCStyleCast,
+         clang-analyzer-optin.osx.cocoa.localizability.EmptyLocalizationContextChecker,
+         clang-analyzer-optin.osx.cocoa.localizability.NonLocalizedStringChecker,
+         clang-analyzer-optin.performance.GCDAntipattern,
+         clang-analyzer-optin.performance.Padding,
+         clang-analyzer-optin.portability.UnixAPI,
+         clang-analyzer-osx.API,
+         clang-analyzer-osx.MIG,
+         clang-analyzer-osx.NSOrCFErrorDerefChecker,
+         clang-analyzer-osx.NumberObjectConversion,
+         clang-analyzer-osx.OSObjectRetainCount,
+         clang-analyzer-osx.ObjCProperty,
+         clang-analyzer-osx.SecKeychainAPI,
+         clang-analyzer-osx.cocoa.AtSync,
+         clang-analyzer-osx.cocoa.AutoreleaseWrite,
+         clang-analyzer-osx.cocoa.ClassRelease,
+         clang-analyzer-osx.cocoa.Dealloc,
+         clang-analyzer-osx.cocoa.IncompatibleMethodTypes,
+         clang-analyzer-osx.cocoa.Loops,
+         clang-analyzer-osx.cocoa.MissingSuperCall,
+         clang-analyzer-osx.cocoa.NSAutoreleasePool,
+         clang-analyzer-osx.cocoa.NSError,
+         clang-analyzer-osx.cocoa.NilArg,
+         clang-analyzer-osx.cocoa.NonNilReturnValue,
+         clang-analyzer-osx.cocoa.ObjCGenerics,
+         clang-analyzer-osx.cocoa.RetainCount,
+         clang-analyzer-osx.cocoa.RetainCountBase,
+         clang-analyzer-osx.cocoa.RunLoopAutoreleaseLeak,
+         clang-analyzer-osx.cocoa.SelfInit,
+         clang-analyzer-osx.cocoa.SuperDealloc,
+         clang-analyzer-osx.cocoa.UnusedIvars,
+         clang-analyzer-osx.cocoa.VariadicMethodTypes,
+         clang-analyzer-osx.coreFoundation.CFError,
+         clang-analyzer-osx.coreFoundation.CFNumber,
+         clang-analyzer-osx.coreFoundation.CFRetainRelease,
+         clang-analyzer-osx.coreFoundation.containers.OutOfBounds,
+         clang-analyzer-osx.coreFoundation.containers.PointerSizedValues,
+         clang-analyzer-security.FloatLoopCounter,
+         clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,
+         clang-analyzer-security.insecureAPI.SecuritySyntaxChecker,
+         clang-analyzer-security.insecureAPI.UncheckedReturn,
+         clang-analyzer-security.insecureAPI.bcmp,
+         clang-analyzer-security.insecureAPI.bcopy,
+         clang-analyzer-security.insecureAPI.bzero,
+         clang-analyzer-security.insecureAPI.decodeValueOfObjCType,
+         clang-analyzer-security.insecureAPI.getpw,
+         clang-analyzer-security.insecureAPI.gets,
+         clang-analyzer-security.insecureAPI.mkstemp,
+         clang-analyzer-security.insecureAPI.mktemp,
+         clang-analyzer-security.insecureAPI.rand,
+         clang-analyzer-security.insecureAPI.strcpy,
+         clang-analyzer-security.insecureAPI.vfork,
+         clang-analyzer-unix.API,
+         clang-analyzer-unix.DynamicMemoryModeling,
+         clang-analyzer-unix.Malloc,
+         clang-analyzer-unix.MallocSizeof,
+         clang-analyzer-unix.MismatchedDeallocator,
+         clang-analyzer-unix.Vfork,
+         clang-analyzer-unix.cstring.BadSizeArg,
+         clang-analyzer-unix.cstring.CStringModeling,
+         clang-analyzer-unix.cstring.NullArg,
+         clang-analyzer-valist.CopyToSelf,
+         clang-analyzer-valist.Uninitialized,
+         clang-analyzer-valist.Unterminated,
+         clang-analyzer-valist.ValistBase,
+         clang-analyzer-webkit.NoUncountedMemberChecker,
+         clang-analyzer-webkit.RefCntblBaseVirtualDtor,
+         clang-analyzer-webkit.UncountedLambdaCapturesChecker,
+
+################################################ Optional checks ################################################
+
+         #google-readability-todo,
+         #bugprone-argument-comment,
+         #bugprone-assert-side-effect,
+         #bugprone-bad-signal-to-kill-thread,
+         #bugprone-bool-pointer-implicit-conversion,
+         #bugprone-branch-clone,
+         #bugprone-copy-constructor-init,
+         #bugprone-dangling-handle,
+         #bugprone-dynamic-static-initializers,
+         #bugprone-easily-swappable-parameters,
+         #bugprone-exception-escape,
+         #bugprone-fold-init-type,
+         #bugprone-forward-declaration-namespace,
+         #bugprone-forwarding-reference-overload,
+         #bugprone-implicit-widening-of-multiplication-result,
+         #bugprone-inaccurate-erase,
+         #bugprone-incorrect-roundings,
+         #bugprone-infinite-loop,
+         #bugprone-integer-division,
+         #bugprone-lambda-function-name,
+         #bugprone-macro-parentheses,
+         #bugprone-macro-repeated-side-effects,
+         #bugprone-misplaced-operator-in-strlen-in-alloc,
+         #bugprone-misplaced-pointer-arithmetic-in-alloc,
+         #bugprone-misplaced-widening-cast,
+         #bugprone-move-forwarding-reference,
+         #bugprone-multiple-statement-macro,
+         #bugprone-narrowing-conversions,
+         #bugprone-no-escape,
+         #bugprone-not-null-terminated-result,
+         #bugprone-parent-virtual-call,
+         #bugprone-posix-return,
+         #bugprone-redundant-branch-condition,
+         #bugprone-reserved-identifier,
+         #bugprone-signal-handler,
+         #bugprone-signed-char-misuse,
+         #bugprone-sizeof-container,
+         #bugprone-sizeof-expression,
+         #bugprone-spuriously-wake-up-functions,
+         #bugprone-string-constructor,
+         #bugprone-string-integer-assignment,
+         #bugprone-string-literal-with-embedded-nul,
+         #bugprone-stringview-nullptr,
+         #bugprone-suspicious-enum-usage,
+         #bugprone-suspicious-include,
+         #bugprone-suspicious-memory-comparison,
+         #bugprone-suspicious-memset-usage,
+         #bugprone-suspicious-missing-comma,
+         #bugprone-suspicious-semicolon,
+         #bugprone-suspicious-string-compare,
+         #bugprone-swapped-arguments,
+         #bugprone-terminating-continue,
+         #bugprone-throw-keyword-missing,
+         #bugprone-too-small-loop-variable,
+         #bugprone-undefined-memory-manipulation,
+         #bugprone-undelegated-constructor,
+         #bugprone-unhandled-exception-at-new,
+         #bugprone-unhandled-self-assignment,
+         #bugprone-unused-raii,
+         #bugprone-unused-return-value,
+         #bugprone-use-after-move,
+         #bugprone-virtual-near-miss,
+         #cppcoreguidelines-avoid-c-arrays,
+         #cppcoreguidelines-avoid-goto,
+         #cppcoreguidelines-avoid-magic-numbers,
+         #cppcoreguidelines-avoid-non-const-global-variables,
+         #cppcoreguidelines-c-copy-assignment-signature,
+         #cppcoreguidelines-explicit-virtual-functions,
+         #cppcoreguidelines-init-variables,
+         #cppcoreguidelines-interfaces-global-init,
+         #cppcoreguidelines-macro-usage,
+         #cppcoreguidelines-narrowing-conversions,
+         #cppcoreguidelines-no-malloc,
+         #cppcoreguidelines-non-private-member-variables-in-classes,
+         #cppcoreguidelines-owning-memory,
+         #cppcoreguidelines-prefer-member-initializer,
+         #cppcoreguidelines-pro-bounds-array-to-pointer-decay,
+         #cppcoreguidelines-pro-bounds-constant-array-index,
+         #cppcoreguidelines-pro-bounds-pointer-arithmetic,
+         #cppcoreguidelines-pro-type-const-cast,
+         #cppcoreguidelines-pro-type-cstyle-cast,
+         #cppcoreguidelines-pro-type-member-init,
+         #cppcoreguidelines-pro-type-reinterpret-cast,
+         #cppcoreguidelines-pro-type-static-cast-downcast,
+         #cppcoreguidelines-pro-type-union-access,
+         #cppcoreguidelines-pro-type-vararg,
+         #cppcoreguidelines-slicing,
+         #cppcoreguidelines-special-member-functions,
+         #cppcoreguidelines-virtual-class-destructor,
+         #hicpp-avoid-c-arrays,
+         #hicpp-avoid-goto,
+         #hicpp-braces-around-statements,
+         #hicpp-deprecated-headers,
+         #hicpp-exception-baseclass,
+         #hicpp-explicit-conversions,
+         #hicpp-function-size,
+         #hicpp-invalid-access-moved,
+         #hicpp-member-init,
+         #hicpp-move-const-arg,
+         #hicpp-multiway-paths-covered,
+         #hicpp-named-parameter,
+         #hicpp-new-delete-operators,
+         #hicpp-no-array-decay,
+         #hicpp-no-assembler,
+         #hicpp-no-malloc,
+         #hicpp-noexcept-move,
+         #hicpp-signed-bitwise,
+         #hicpp-special-member-functions,
+         #hicpp-static-assert,
+         #hicpp-undelegated-constructor,
+         #hicpp-uppercase-literal-suffix,
+         #hicpp-use-auto,
+         #hicpp-use-emplace,
+         #hicpp-use-equals-default,
+         #hicpp-use-equals-delete,
+         #hicpp-use-noexcept,
+         #hicpp-use-nullptr,
+         #hicpp-use-override,
+         #hicpp-vararg,
+         #modernize-avoid-bind,
+         #modernize-avoid-c-arrays,
+         #modernize-concat-nested-namespaces,
+         #modernize-deprecated-headers,
+         #modernize-deprecated-ios-base-aliases,
+         #modernize-loop-convert,
+         #modernize-make-shared,
+         #modernize-make-unique,
+         #modernize-pass-by-value,
+         #modernize-raw-string-literal,
+         #modernize-redundant-void-arg,
+         #modernize-replace-auto-ptr,
+         #modernize-replace-disallow-copy-and-assign-macro,
+         #modernize-replace-random-shuffle,
+         #modernize-return-braced-init-list,
+         #modernize-shrink-to-fit,
+         #modernize-unary-static-assert,
+         #modernize-use-auto,
+         #modernize-use-bool-literals,
+         #modernize-use-default-member-init,
+         #modernize-use-emplace,
+         #modernize-use-equals-default,
+         #modernize-use-equals-delete,
+         #modernize-use-nodiscard,
+         #modernize-use-noexcept,
+         #modernize-use-nullptr,
+         #modernize-use-override,
+         #modernize-use-trailing-return-type,
+         #modernize-use-transparent-functors,
+         #modernize-use-uncaught-exceptions,
+         #modernize-use-using,
+         #performance-faster-string-find,
+         #performance-for-range-copy,
+         #performance-implicit-conversion-in-loop,
+         #performance-inefficient-algorithm,
+         #performance-inefficient-string-concatenation,
+         #performance-inefficient-vector-operation,
+         #performance-move-const-arg,
+         #performance-move-constructor-init,
+         #performance-no-automatic-move,
+         #performance-no-int-to-ptr,
+         #performance-noexcept-move-constructor,
+         #performance-trivially-destructible,
+         #performance-type-promotion-in-math-fn,
+         #performance-unnecessary-copy-initialization,
+         #performance-unnecessary-value-param,
+         #portability-restrict-system-includes,
+         #portability-simd-intrinsics,
+         #readability-avoid-const-params-in-decls,
+         #readability-braces-around-statements,
+         #readability-const-return-type,
+         #readability-container-contains,
+         #readability-container-data-pointer,
+         #readability-container-size-empty,
+         #readability-convert-member-functions-to-static,
+         #readability-delete-null-pointer,
+         #readability-duplicate-include,
+         #readability-else-after-return,
+         #readability-function-cognitive-complexity,
+         #readability-function-size,
+         #readability-identifier-length,
+         #readability-identifier-naming,
+         #readability-implicit-bool-conversion,
+         #readability-inconsistent-declaration-parameter-name,
+         #readability-isolate-declaration,
+         #readability-magic-numbers,
+         #readability-make-member-function-const,
+         #readability-misleading-indentation,
+         #readability-misplaced-array-index,
+         #readability-named-parameter,
+         #readability-non-const-parameter,
+         #readability-qualified-auto,
+         #readability-redundant-access-specifiers,
+         #readability-redundant-control-flow,
+         #readability-redundant-declaration,
+         #readability-redundant-function-ptr-dereference,
+         #readability-redundant-member-init,
+         #readability-redundant-preprocessor,
+         #readability-redundant-smartptr-get,
+         #readability-redundant-string-cstr,
+         #readability-redundant-string-init,
+         #readability-simplify-boolean-expr,
+         #readability-simplify-subscript-expr,
+         #readability-static-accessed-through-instance,
+         #readability-static-definition-in-anonymous-namespace,
+         #readability-string-compare,
+         #readability-suspicious-call-argument,
+         #readability-uniqueptr-delete-release,
+         #readability-uppercase-literal-suffix,
+         #readability-use-anyofallof
+         "

.editorconfig

@@ -5,3 +5,4 @@ root = true
 indent_style = space
 indent_size = 2
 insert_final_newline = true
+trim_trailing_whitespace = true

.eslintrc.js

@@ -1,13 +0,0 @@
-/* eslint-env node */
-
-module.exports = {
-    root: true,
-    parser: '@typescript-eslint/parser',
-    plugins: [
-        '@typescript-eslint',
-    ],
-    extends: [
-        'eslint:recommended',
-        'plugin:@typescript-eslint/recommended',
-    ]
-};

.github/CODEOWNERS

@@ -0,0 +1,5 @@
+# Default owner
+* @dbaileychess derekbailey@google.com
+
+# Prevent modification of this file
+.github/CODEOWNERS @dbaileychess derekbailey@google.com

.github/ISSUE_TEMPLATE/404-doc.md

@@ -0,0 +1,11 @@
+---
+name: 404 Doc
+about: To fix broken documentation links
+title: "[Doc 404]"
+labels: documentation
+assignees: dbaileychess
+
+---
+
+Target URL:
+[Optional] Source Site:

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,7 +3,7 @@ Thank you for submitting a PR!
 Please delete this standard text once you've created your own description.
 
 If you make changes to any of the code generators (`src/idl_gen*`) be sure to
-build your project, as it will generate code based on the changes. If necessary
+[build](https://google.github.io/flatbuffers/flatbuffers_guide_building.html) your project, as it will generate code based on the changes. If necessary
 the code generation script can be directly run (`scripts/generate_code.py`),
 requires Python3. This allows us to better see the effect of the PR.
 

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/labeler.yml

@@ -5,93 +5,133 @@
 #
 # See .github/workflows/label.yml for Github Action workflow script
 
-c#:
+"c#":
-  - '**/*.cs'
+  - changed-files:
-  - net/**/*
+    - any-glob-to-any-file:
-  - tests/FlatBuffers.Test/**/*
+      - '**/*.cs'
-  - tests/FlatBuffers.Benchmarks/**/*
+      - 'net/**/*'
-  - src/idl_gen_csharp.cpp
+      - 'tests/FlatBuffers.Test/**/*'
+      - 'tests/FlatBuffers.Benchmarks/**/*'
+      - 'src/idl_gen_csharp.cpp'
 
 swift:
-  - '**/*.swift'
+  - changed-files:
-  - swift/**/*
+    - any-glob-to-any-file:
-  - tests/FlatBuffers.GRPC.Swift/**/*
+      - '**/*.swift'
-  - tests/FlatBuffers.Benchmarks.swift/**/*
+      - 'swift/**/*'
-  - tests/FlatBuffers.Test.Swift/**/*
+      - 'tests/swift/**'
-  - src/idl_gen_swift.cpp
+      - 'src/idl_gen_swift.cpp'
+
+nim:
+  - changed-files:
+    - any-glob-to-any-file:
+      - '**/*.nim'
+      - 'nim/**/*'
+      - 'src/idl_gen_nim.cpp'
+      - 'src/bfbs_gen_nim.cpp'
 
 javascript:
-  - '**/*.js'
+  - changed-files:
-  - src/idl_gen_ts.cpp
+    - any-glob-to-any-file:
+      - '**/*.js'
+      - 'src/idl_gen_ts.cpp'
 
 typescript:
-  - '**/*.ts'
+  - changed-files:
-  - src/idl_gen_ts.cpp
+    - any-glob-to-any-file:
-  - grpc/flatbuffers-js-grpc/**/*.ts
+      - '**/*.ts'
+      - 'src/idl_gen_ts.cpp'
+      - 'grpc/flatbuffers-js-grpc/**/*.ts'
 
 golang:
-  - '**/*.go'
+  - changed-files:
-  - src/idl_gen_go.cpp
+    - any-glob-to-any-file:
+      - '**/*.go'
+      - 'src/idl_gen_go.cpp'
 
 python:
-  - '**/*.py'
+  - changed-files:
-  - src/idl_gen_python.cpp
+    - any-glob-to-any-file:
+      - '**/*.py'
+      - 'src/idl_gen_python.cpp'
 
 java:
-  - '**/*.java'
+  - changed-files:
-  - src/idl_gen_java.cpp
+    - any-glob-to-any-file:
+      - '**/*.java'
+      - 'src/idl_gen_java.cpp'
 
 kotlin:
-  - '**/*.kt'
+  - changed-files:
-  - src/idl_gen_kotlin.cpp
+    - any-glob-to-any-file:
+      - '**/*.kt'
+      - 'src/idl_gen_kotlin.cpp'
+      - 'src/idl_gen_kotlin_kmp.cpp'
 
 lua:
-  - '**/*.lua'
+  - changed-files:
-  - lua/**/*
+    - any-glob-to-any-file:
-  - src/idl_gen_lua.cpp
+      - '**/*.lua'
-  - src/bfbs_gen_lua.cpp
+      - 'lua/**/*'
+      - 'src/bfbs_gen_lua.cpp'
 
 lobster:
-  - '**/*.lobster'
+  - changed-files:
-  - src/idl_gen_lobster.cpp
+    - any-glob-to-any-file:
+      - '**/*.lobster'
+      - 'src/idl_gen_lobster.cpp'
 
 php:
-  - '**/*.php'
+  - changed-files:
-  - src/idl_gen_php.cpp
+    - any-glob-to-any-file:
+      - '**/*.php'
+      - 'src/idl_gen_php.cpp'
 
 rust:
-  - '**/*.rs'
+  - changed-files:
-  - rust/**/*
+    - any-glob-to-any-file:
-  - src/idl_gen_rust.cpp
+      - '**/*.rs'
-  
+      - 'rust/**/*'
-dart:
+      - 'src/idl_gen_rust.cpp'
-  - '**/*.dart'
-  - src/idl_gen_dart.cpp
 
-c++:
+dart:
-  - '**/*.cc'
+  - changed-files:
-  - '**/*.cpp'
+    - any-glob-to-any-file:
-  - '**/*.h'
+      - '**/*.dart'
+      - 'src/idl_gen_dart.cpp'
+
+"c++":
+  - changed-files:
+    - any-glob-to-any-file:
+      - '**/*.cc'
+      - '**/*.cpp'
+      - '**/*.h'
 
 json:
-  - '**/*.json'
+  - changed-files:
-  - src/idl_gen_json_schema.cpp
+    - any-glob-to-any-file:
+      - '**/*.json'
+      - 'src/idl_gen_json_schema.cpp'
 
 codegen:
-  - src/**/*
+  - changed-files:
+    - any-glob-to-any-file:
+      - 'src/**/*'
 
 documentation:
-  - docs/**/*
+  - changed-files:
-  - '**/*.md'
+    - any-glob-to-any-file:
+      - 'docs/**/*'
+      - '**/*.md'
 
 CI:
-  - '.github/**/*'
+  - changed-files:
-  - '.appveyor/**/*'
+    - any-glob-to-any-file:
-  - '.travis/**/*'
+      - '.github/**/*'
-  - '.bazelci/**/*'
+      - '.bazelci/**/*'
-  - .travis.yml
-  - appveyor.yml
 
 grpc:
-  - grpc/**/*
+  - changed-files:
-  - src/idl_gen_grpc.cpp
+    - any-glob-to-any-file:
+      - 'grpc/**/*'
+      - 'src/idl_gen_grpc.cpp'

.github/workflows/build.yml

@@ -1,26 +1,40 @@
 name: CI
+permissions: read-all
 
 on:
+  # For manual tests.
+  workflow_dispatch:
   push:
+    tags:
+      - "*" # new tag version, like `0.8.4` or else
     branches:
       - master
   pull_request:
     branches:
       - master
+  schedule:
+    # Run daily at 4:45 A.M. to catch dependencies that break us.
+    - cron: '45 4 * * *'
 
 jobs:
   build-linux:
+    permissions:
+      contents: write
+    outputs:
+      digests-gcc: ${{ steps.hash-gcc.outputs.hashes }}
+      digests-clang: ${{ steps.hash-clang.outputs.hashes }}
     name: Build Linux
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: [g++-10, clang++-12]
+        cxx: [g++-13, clang++-18]
+      fail-fast: false
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: cmake
-      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release .
+      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON -DFLATBUFFERS_STATIC_FLATC=ON .
     - name: build
-      run: make -j4
+      run: make -j
     - name: test
       run: ./flattests
     - name: make flatc executable
@@ -28,247 +42,602 @@ jobs:
         chmod +x flatc
         ./flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v7
       with:
         name: Linux flatc binary ${{ matrix.cxx }}
         path: flatc
+    # Below if only for release.
+    - name: Zip file
+      if: startsWith(github.ref, 'refs/tags/')
+      run: zip Linux.flatc.binary.${{ matrix.cxx }}.zip flatc
+    - name: Release zip file
+      uses: softprops/action-gh-release@v2
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: Linux.flatc.binary.${{ matrix.cxx }}.zip
+    - name: Generate SLSA subjects - clang
+      if: matrix.cxx == 'clang++-18' && startsWith(github.ref, 'refs/tags/')
+      id: hash-clang
+      run: echo "hashes=$(sha256sum Linux.flatc.binary.${{ matrix.cxx }}.zip | base64 -w0)" >> $GITHUB_OUTPUT
+    - name: Generate SLSA subjects - gcc
+      if: matrix.cxx == 'g++-13' && startsWith(github.ref, 'refs/tags/')
+      id: hash-gcc
+      run: echo "hashes=$(sha256sum Linux.flatc.binary.${{ matrix.cxx }}.zip | base64 -w0)" >> $GITHUB_OUTPUT
+
+  build-linux-no-file-tests:
+    name: Build Linux with -DFLATBUFFERS_NO_FILE_TESTS
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v6
+    - name: cmake
+      run: CXX=clang++-18 cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON -DFLATBUFFERS_CXX_FLAGS="-DFLATBUFFERS_NO_FILE_TESTS" .
+    - name: build
+      run: make -j
+    - name: test
+      run: ./flattests
+
+  build-linux-out-of-source:
+    name: Build Linux with out-of-source build location
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v6
+    - name: make build directory
+      run: mkdir build
+    - name: cmake
+      working-directory: build
+      run: >
+        CXX=clang++-18 cmake .. -G "Unix Makefiles" -DFLATBUFFERS_STRICT_MODE=ON
+        -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_CPP_STD=17
+    - name: build
+      working-directory: build
+      run: make -j
+    - name: test
+      working-directory: build
+      run: pwd && ./flattests
+    - name: test C++17
+      working-directory: build
+      run: ./flattests_cpp17
+
+  build-linux-cpp-std:
+    name: Build Linux C++
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        std: [11, 14, 17, 20, 23]
+        cxx: [g++-13, clang++-18]
+        exclude:
+          # Clang++15 10.3.0 stdlibc++ doesn't fully support std 23
+          - cxx: clang++-18
+            std: 23
+
+    steps:
+    - uses: actions/checkout@v6
+    - name: cmake
+      run: >
+        CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles"
+        -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON
+        -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
+        -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
+    - name: build
+      run: make -j
+    - name: test
+      run: ./flattests
+    - name: test C++17
+      if: matrix.std >= 17
+      run: ./flattests_cpp17
+
+  build-cpp-std:
+    name: Build Windows C++
+    runs-on: windows-2022
+    strategy:
+      matrix:
+        std: [11, 14, 17, 20, 23]
+      fail-fast: false
+    steps:
+    - uses: actions/checkout@v6
+    - name: Add msbuild to PATH
+      uses: microsoft/setup-msbuild@v2
+    - name: cmake
+      run: >
+        cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release
+        -DFLATBUFFERS_STRICT_MODE=ON
+        -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
+        -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
+    - name: build
+      run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64
+    - name: test
+      run: Release\flattests.exe
+    - name: test C++17
+      if: matrix.std >= 17
+      run: Release\flattests_cpp17.exe
 
   build-windows:
-    name: Build Windows 2019 
+    permissions:
-    runs-on: windows-latest
+      contents: write
+    outputs:
+      digests: ${{ steps.hash.outputs.hashes }}
+    name: Build Windows 2022
+    runs-on: windows-2022
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
+      uses: microsoft/setup-msbuild@v2
     - name: cmake
-      run: cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON .
+      run: cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_STRICT_MODE=ON .
     - name: build
       run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64
     - name: test
       run: Release\flattests.exe
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v7
       with:
         name: Windows flatc binary
         path: Release\flatc.exe
+    # Below if only for release.
+    - name: Zip file
+      if: startsWith(github.ref, 'refs/tags/')
+      run: move Release/flatc.exe . && Compress-Archive flatc.exe Windows.flatc.binary.zip
+    - name: Release binary
+      uses: softprops/action-gh-release@v2
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: Windows.flatc.binary.zip
+    - name: Generate SLSA subjects
+      if: startsWith(github.ref, 'refs/tags/')
+      id: hash
+      shell: bash
+      run: echo "hashes=$(sha256sum Windows.flatc.binary.zip | base64 -w0)" >> $GITHUB_OUTPUT
 
-  build-windows-2017:
+  build-dotnet-windows:
-    name: Build Windows 2017
+    name: Build .NET Windows
-    runs-on: windows-latest
+    runs-on: windows-2022
+    strategy:
+      matrix:
+        configuration: [
+          '',
+          '-p:UnsafeByteBuffer=true',
+          '-p:EnableSpanT=true,UnsafeByteBuffer=true'
+          ]
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
-    - name: Add msbuild to PATH
+    - name: Setup .NET Core SDK
-      uses: microsoft/setup-msbuild@v1.1
+      uses: actions/setup-dotnet@v5
-    - name: cmake
+      with:
-      run: cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release .
+        dotnet-version: '8.0.x'
-    - name: build tool version 15 (VS 2017)
+    - name: Build
-      run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64 /p:VisualStudioVersion=15.0
-    - name: test
-      run: Release\flattests.exe
-
-  build-windows-2015:
-    name: Build Windows 2015
-    runs-on: windows-latest
-    steps:
-    - uses: actions/checkout@v1
-    - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
-    - name: cmake
-      run: cmake -G "Visual Studio 14 2015" -A x64 -DCMAKE_BUILD_TYPE=Release .
-    - name: build tool version 14 (VS 2015)
-      run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64 /p:VisualStudioVersion=14.0
-    - name: test
-      run: Release\flattests.exe
-
-  build-mac:
-    name: Build Mac
-    runs-on: macos-latest
-    steps:
-    - uses: actions/checkout@v1
-    - name: cmake
-      run: cmake -G "Xcode" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_FLATC_EXECUTABLE=_build/Release/flatc .
-    - name: build
-      # NOTE: we need this _build dir to not have xcodebuild's default ./build dir clash with the BUILD file.
-      run: xcodebuild -toolchain clang -configuration Release -target flattests SYMROOT=$(PWD)/_build
-    - name: check that the binary is "universal"
       run: |
-        info=$(file _build/Release/flatc)
+        cd tests\FlatBuffers.Test
+        dotnet new sln --force --name FlatBuffers.Test --format sln
+        dotnet sln FlatBuffers.Test.sln add FlatBuffers.Test.csproj
+        dotnet build -c Release ${{matrix.configuration}} FlatBuffers.Test.sln
+    - name: Run net6.0
+      run: |
+        cd tests\FlatBuffers.Test\bin\Release\net6.0
+        dir
+        .\FlatBuffers.Test.exe
+    - name: Run net8.0
+      run: |
+        cd tests\FlatBuffers.Test\bin\Release\net8.0
+        .\FlatBuffers.Test.exe
+
+  build-mac-intel:
+    permissions:
+      contents: write
+    outputs:
+      digests: ${{ steps.hash.outputs.hashes }}
+    name: Build Mac (for Intel)
+    runs-on: macos-15-intel
+    steps:
+    - uses: actions/checkout@v6
+    - name: cmake
+      run: cmake -G "Xcode" -DCMAKE_OSX_ARCHITECTURES="x86_64" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
+    - name: build
+      run: xcodebuild -toolchain clang -configuration Release -target flattests
+    - name: check that the binary is x86_64
+      run: |
+        info=$(file Release/flatc)
         echo $info
-        echo $info | grep "universal binary with 2 architectures"
+        echo $info | grep "Mach-O 64-bit executable x86_64"
     - name: test
-      run: _build/Release/flattests
+      run: Release/flattests
     - name: make flatc executable
       run: |
-        chmod +x _build/Release/flatc
+        chmod +x Release/flatc
-        ./_build/Release/flatc --version
+        Release/flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v7
       with:
-        name: Mac flatc binary
+        name: Mac flatc binary Intel
-        path: _build/Release/flatc
+        path: Release/flatc
+    # Below if only for release.
+    - name: Zip file
+      if: startsWith(github.ref, 'refs/tags/')
+      run: mv Release/flatc . && zip MacIntel.flatc.binary.zip flatc
+    - name: Release binary
+      uses: softprops/action-gh-release@v2
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: MacIntel.flatc.binary.zip
+    - name: Generate SLSA subjects
+      if: startsWith(github.ref, 'refs/tags/')
+      id: hash
+      run: echo "hashes=$(shasum -a 256 MacIntel.flatc.binary.zip | base64)" >> $GITHUB_OUTPUT
+
+  build-mac-universal:
+    permissions:
+      contents: write
+    outputs:
+      digests: ${{ steps.hash.outputs.hashes }}
+    name: Build Mac (universal build)
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v6
+    - name: cmake
+      run: cmake -G "Xcode" -DCMAKE_OSX_ARCHITECTURES="arm64;x86_64" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
+    - name: build
+      run: xcodebuild -toolchain clang -configuration Release -target flattests
+    - name: check that the binary is "universal"
+      run: |
+        info=$(file Release/flatc)
+        echo $info
+        echo $info | grep "Mach-O universal binary with 2 architectures"
+    - name: test
+      run: Release/flattests
+    - name: make flatc executable
+      run: |
+        chmod +x Release/flatc
+        Release/flatc --version
+    - name: upload build artifacts
+      uses: actions/upload-artifact@v7
+      with:
+        name: Mac flatc binary Universal
+        path: Release/flatc
+    # Below if only for release.
+    - name: Zip file
+      if: startsWith(github.ref, 'refs/tags/')
+      run: mv Release/flatc . && zip Mac.flatc.binary.zip flatc
+    - name: Release binary
+      uses: softprops/action-gh-release@v2
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: Mac.flatc.binary.zip
+    - name: Generate SLSA subjects
+      if: startsWith(github.ref, 'refs/tags/')
+      id: hash
+      run: echo "hashes=$(shasum -a 256 Mac.flatc.binary.zip | base64)" >> $GITHUB_OUTPUT
 
   build-android:
    name: Build Android (on Linux)
-   runs-on: ubuntu-latest
+   if: false #disabled due to continual failure
+   runs-on: ubuntu-24.04
    steps:
-   - uses: actions/checkout@v1
+   - uses: actions/checkout@v6
-   - name: set up JDK 1.8
+   - name: set up Java
-     uses: actions/setup-java@v1
+     uses: actions/setup-java@v5
      with:
-       java-version: 1.8
+       distribution: temurin
+       java-version: 17
+   - name: set up Gradle
+     uses: gradle/actions/setup-gradle@v5
    - name: set up flatc
      run: |
-       cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
+       cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON .
-       make
+       make -j
        echo "${PWD}" >> $GITHUB_PATH
    - name: build
      working-directory: android
-     run: bash ./gradlew clean build
+     run: gradle clean build
 
   build-generator:
     name: Check Generated Code
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: [g++-10, clang++-12]
+        cxx: [g++-13, clang++-18]
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: cmake
-      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release . && make -j4
+      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON . && make -j
     - name: Generate
       run: scripts/check_generate_code.py
     - name: Generate gRPC
-      run: bash scripts/check-grpc-generated-code.sh
+      run: scripts/check-grpc-generated-code.py
+
+  build-generator-windows:
+    name: Check Generated Code on Windows
+    runs-on: windows-2022
+    steps:
+    - uses: actions/checkout@v6
+    - name: Add msbuild to PATH
+      uses: microsoft/setup-msbuild@v2
+    - name: cmake
+      run: cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_STRICT_MODE=ON .
+    - name: build
+      run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64
+    - name: Generate
+      run: python3 scripts/check_generate_code.py --flatc Release\flatc.exe
+    - name: Generate gRPC
+      run: python3 scripts/check-grpc-generated-code.py --flatc Release\flatc.exe
 
   build-benchmarks:
     name: Build Benchmarks (on Linux)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: [g++-10]
+        cxx: [g++-13]
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: cmake
-      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_CXX_FLAGS="-Wno-unused-parameter -fno-aligned-new" -DFLATBUFFERS_BUILD_BENCHMARKS=ON -DCMAKE_BUILD_TYPE=Release . && make -j4
+      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_CXX_FLAGS="-Wno-unused-parameter -fno-aligned-new" -DFLATBUFFERS_BUILD_BENCHMARKS=ON -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON . && make -j
     - name: Run benchmarks
       run: ./flatbenchmark --benchmark_repetitions=5 --benchmark_display_aggregates_only=true --benchmark_out_format=console --benchmark_out=benchmarks/results_${{matrix.cxx}}
     - name: Upload benchmarks results
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v7
       with:
         name: Linux flatbenchmark results ${{matrix.cxx}}
         path: benchmarks/results_${{matrix.cxx}}
 
   build-java:
     name: Build Java
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: test
-      working-directory: tests
+      working-directory: java
-      run: bash JavaTest.sh
+      run: mvn test
 
   build-kotlin-macos:
     name: Build Kotlin MacOS
-    runs-on: macos-latest
+    runs-on: macos-15
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
-    - uses: actions/setup-java@v2
+    - name: set up Java
+      uses: actions/setup-java@v5
       with:
-        distribution: 'adopt-hotspot'
+        distribution: temurin
-        java-version: '11'
+        java-version: 17
+    - name: set up Gradle
+      uses: gradle/actions/setup-gradle@v5
+    - name: Build flatc
+      run: |
+       cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
+       make -j
+       echo "${PWD}" >> $GITHUB_PATH
     - name: Build
       working-directory: kotlin
-      run: ./gradlew clean iosX64Test macosX64Test jsTest jsBrowserTest
+      run: ./gradlew clean iosSimulatorArm64Test macosX64Test macosArm64Test
 
   build-kotlin-linux:
     name: Build Kotlin Linux
-    runs-on: ubuntu-latest
+    if: false #disabled due to continual failure
+    runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
-    - uses: actions/setup-java@v2
+    - name: set up Java
+      uses: actions/setup-java@v5
       with:
-        distribution: 'adopt-hotspot'
+        distribution: temurin
-        java-version: '8'
+        java-version: 17
+    - name: set up Gradle
+      uses: gradle/actions/setup-gradle@v5
+    - name: Build flatc
+      run: |
+       cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
+       make -j
+       echo "${PWD}" >> $GITHUB_PATH
     - name: Build
       working-directory: kotlin
-      run: ./gradlew jvmMainClasses jvmTest
+      # we are using docker's version of gradle
-    - name: Run Benchmark
+      # so no need for wrapper validation or user
-      working-directory: kotlin
+      # gradlew
-      run: ./gradlew jvmBenchmark
+      run: gradle jvmMainClasses jvmTest jsTest jsBrowserTest
-    - name: Generate Benchmark Report
-      working-directory: kotlin
-      run: |
-        ./gradlew jmhReport;
-        mv benchmark/build/reports/benchmarks/main/* benchmark_latest
-    - name: Archive benchmark report
-      uses: actions/upload-artifact@v1
-      with:
-        name: Kotlin Benchmark Report
-        path: kotlin/benchmark_latest
 
-  build-rust:
+  build-rust-linux:
-    name: Build Rust
+    name: Build Rust Linux
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: test
       working-directory: tests
       run: bash RustTest.sh
 
+  build-rust-windows:
+    name: Build Rust Windows
+    runs-on: windows-2022
+    steps:
+    - uses: actions/checkout@v6
+    - name: test
+      working-directory: tests
+      run: ./RustTest.bat
+
   build-python:
     name: Build Python
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
+    - name: flatc
+      # FIXME: make test script not rely on flatc
+      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
     - name: test
       working-directory: tests
       run: bash PythonTest.sh
 
   build-go:
     name: Build Go
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
     - name: flatc
       # FIXME: make test script not rely on flatc
-      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j4
+      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
     - name: test
       working-directory: tests
       run: bash GoTest.sh
 
+  build-php:
+   name: Build PHP
+   runs-on: ubuntu-24.04
+   steps:
+   - uses: actions/checkout@v6
+   - name: flatc
+     # FIXME: make test script not rely on flatc
+     run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
+   - name: test
+     working-directory: tests
+     run: |
+       php phpTest.php
+       sh phpUnionVectorTest.sh
+
   build-swift:
-    name: Build Swift
+    name: Test Swift Linux
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        swift: ["6.0", "6.1", "6.2"]
+    runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
+    - uses: swift-actions/setup-swift@v2
+      with:
+        swift-version: ${{ matrix.swift }}
+    - name: Get swift version
+      run: swift --version
     - name: test
-      working-directory: tests/FlatBuffers.Test.Swift
+      run: swift test
-      run: sh SwiftTest.sh
+
+  build-swift-windows:
+    name: Test swift windows
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: SwiftyLab/setup-swift@latest
+        with:
+          swift-version: '6.1'
+      - run: swift build
+      - run: swift test
+
+  build-swift-wasm:
+    name: Test Swift Wasm
+    runs-on: ubuntu-24.04
+    steps:
+       - uses: actions/checkout@v6
+       - uses: swift-actions/setup-swift@v2
+         with:
+           swift-version: 6.2.1
+       - uses: bytecodealliance/actions/wasmtime/setup@v1
+       - name: Install Swift SDK
+         run: swift sdk install https://download.swift.org/swift-6.2.1-release/wasm-sdk/swift-6.2.1-RELEASE/swift-6.2.1-RELEASE_wasm.artifactbundle.tar.gz --checksum 482b9f95462b87bedfafca94a092cf9ec4496671ca13b43745097122d20f18af
+       - name: Test
+         working-directory: tests/swift/Wasm.tests
+         run: |
+           swift sdk list
+           swift build --build-tests --swift-sdk swift-6.2.1-RELEASE_wasm
+           wasmtime --dir . .build/wasm32-unknown-wasip1/debug/FlatBuffers.Test.Swift.WasmPackageTests.xctest --testing-library swift-testing
 
   build-ts:
     name: Build TS
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v6
+    - name: flatc
+      # FIXME: make test script not rely on flatc
+      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
+    - name: pnpm
+      run: npm install -g pnpm@10
+    - name: deps
+      run: pnpm i
     - name: compile
-      run: npm run compile
+      run: pnpm compile
     - name: test
-      working-directory: tests
+      working-directory: tests/ts
-      run: sh TypeScriptTest.sh
+      run: |
+        python3 TypeScriptTest.py
 
   build-dart:
     name: Build Dart
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v6
       - uses: dart-lang/setup-dart@v1
         with:
           sdk: stable
       - name: flatc
         # FIXME: make test script not rely on flatc
-        run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j4
+        run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
       - name: test
         working-directory: tests
         run: bash DartTest.sh
+
+  build-nim:
+    name: Build Nim
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v6
+    - name: flatc
+      # FIXME: make test script not rely on flatc
+      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
+    - uses: jiro4989/setup-nim-action@v2
+    - name: install library
+      working-directory: nim
+      run: nimble -y develop && nimble install
+    - name: test
+      working-directory: tests/nim
+      run: python3 testnim.py
+
+  bazel:
+    name: Bazel
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+      # Explicitly use 8.5.1 until we can update or https://github.com/actions/runner-images/issues/13564 is fixed.
+      - name: Set env
+        run: >
+          echo "USE_BAZEL_VERSION=8.5.1" >> $GITHUB_ENV
+      - name: bazel build
+        run: >
+          bazel build
+          //:flatc
+          //:flatbuffers
+          //tests:flatbuffers_test
+      - name: bazel test
+        run: >
+          bazel test
+          //tests:flatbuffers_test
+
+  release-digests:
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: [build-linux, build-windows, build-mac-intel, build-mac-universal]
+    outputs:
+      digests: ${{ steps.hash.outputs.digests }}
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Merge results
+        id: hash
+        env:
+          LINUXGCC_DIGESTS: "${{ needs.build-linux.outputs.digests-gcc }}"
+          LINUXCLANG_DIGESTS: "${{ needs.build-linux.outputs.digests-clang }}"
+          MAC_DIGESTS: "${{ needs.build-mac-universal.outputs.digests }}"
+          MACINTEL_DIGESTS: "${{ needs.build-mac-intel.outputs.digests }}"
+          WINDOWS_DIGESTS: "${{ needs.build-windows.outputs.digests }}"
+        run: |
+          set -euo pipefail
+          echo "$LINUXGCC_DIGESTS" | base64 -d > checksums.txt
+          echo "$LINUXCLANG_DIGESTS" | base64 -d >> checksums.txt
+          echo "$MAC_DIGESTS" | base64 -d >> checksums.txt
+          echo "$MACINTEL_DIGESTS" | base64 -d >> checksums.txt
+          echo "$WINDOWS_DIGESTS" | base64 -d >> checksums.txt
+          echo "digests=$(cat checksums.txt | base64 -w0)" >> $GITHUB_OUTPUT
+
+  provenance:
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: [release-digests]
+    permissions:
+      actions: read   # To read the workflow path.
+      id-token: write # To sign the provenance.
+      contents: write # To add assets to a release.
+    uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v2.1.0
+    with:
+      base64-subjects: "${{ needs.release-digests.outputs.digests }}"
+      upload-assets: true # Optional: Upload to a new release

.github/workflows/docs.yml

@@ -0,0 +1,36 @@
+name: docs
+on:
+  # For manual pushes.
+  workflow_dispatch: 
+
+  # Pushes to main that touch the documentation directory.
+  push:
+    branches:
+      - master
+    paths:
+      - 'docs/**'
+
+permissions:
+  contents: write
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Configure Git Credentials
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+      - uses: actions/setup-python@v6
+        with:
+          python-version: 3.x
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
+      - uses: actions/cache@v5
+        with:
+          key: mkdocs-material-${{ env.cache_id }}
+          path: .cache
+          restore-keys: |
+            mkdocs-material-
+      - run: pip install mkdocs-material 
+      - run: pip install mkdocs-redirects
+      - run: mkdocs gh-deploy --force -f docs/mkdocs.yml

.github/workflows/label.yml

@@ -6,14 +6,19 @@
 # https://github.com/actions/labeler
 
 name: Labeler
+permissions: read-all
+
 on: [pull_request_target]
 
 jobs:
   label:
-
+    permissions:
+      contents: read
+      pull-requests: write
+      
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/labeler@main
+    - uses: actions/labeler@v6
       with:
-        repo-token: "${{ secrets.GITHUB_TOKEN }}"
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/main.yml

@@ -0,0 +1,34 @@
+name: OSS-Fuzz
+permissions: read-all
+
+on:
+  pull_request:
+    branches:
+      - master
+    paths:
+      - include/**
+      - src/**
+      - tests/**.cpp
+      - tests/**.h
+jobs:
+ Fuzzing:
+   runs-on: ubuntu-latest
+   steps:
+   - name: Build Fuzzers
+     id: build
+     uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+     with:
+       oss-fuzz-project-name: 'flatbuffers'
+       language: c++
+   - name: Run Fuzzers
+     uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+     with:
+       oss-fuzz-project-name: 'flatbuffers'
+       language: c++
+       fuzz-seconds: 60
+   - name: Upload Crash
+     uses: actions/upload-artifact@v7
+     if: failure() && steps.build.outcome == 'success'
+     with:
+       name: artifacts
+       path: ./out/artifacts

.github/workflows/release.yml

@@ -0,0 +1,152 @@
+name: Release
+permissions: read-all
+
+on:
+  # For manual tests.
+  workflow_dispatch:
+  release:
+    types: [published]
+
+jobs:
+  publish-npm:
+    name: Publish NPM
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-node@v6
+        with:
+          node-version: '20.x'
+          registry-url: 'https://registry.npmjs.org'
+
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+  publish-pypi:
+    name: Publish PyPi
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./python
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.10'
+
+      - name: Install Dependencies
+        run: |
+          python3 -m pip install --upgrade pip
+          python3 -m pip install build twine
+
+      - name: Build
+        run: |
+          python3 -m build .
+
+      - name: Upload to PyPi
+        run: |
+          python3 -m twine upload dist/*
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.TWINE_TOKEN }}
+
+  publish-nuget:
+    name: Publish NuGet
+    runs-on: windows-latest
+    defaults:
+      run:
+        working-directory: ./net/flatbuffers
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: '8.0.x'
+      - name: Build
+        run: |
+          dotnet build Google.FlatBuffers.csproj -c Release
+
+      - name: Pack
+        run: |
+          dotnet pack Google.FlatBuffers.csproj -c Release
+
+      - name: Upload to NuGet
+        run: |
+          dotnet nuget push .\bin\Release\Google.FlatBuffers.*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
+
+  publish-maven:
+    name: Publish Maven
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./java
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Maven Central Repository
+        uses: actions/setup-java@v5
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: 'maven'
+          server-id: ossrh
+          server-username: OSSRH_USERNAME
+          server-password: OSSRH_PASSWORD
+          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
+          gpg-passphrase: MAVEN_GPG_PASSPHRASE # this needs to be an env var
+
+      - name: Publish Maven
+        run: mvn --batch-mode clean deploy
+        env:
+          OSSRH_USERNAME: ${{ secrets.OSSRH_USER_V2 }}
+          OSSRH_PASSWORD: ${{ secrets.OSSRH_TOKEN_V2 }}
+          MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}
+          
+  publish-maven-kotlin:
+    name: Publish Maven - Kotlin
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./kotlin
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Maven Central Repository
+        uses: actions/setup-java@v5
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: 'maven'
+          server-id: ossrh
+          server-username: OSSRH_USERNAME
+          server-password: OSSRH_PASSWORD
+          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
+          gpg-passphrase: MAVEN_GPG_PASSPHRASE # this needs to be an env var
+
+      - name: Publish Kotlin Library on Maven
+        run: ./gradlew publishAllPublicationsToSonatypeRepository
+        env:
+          OSSRH_USERNAME: ${{ secrets.OSSRH_USER_V2 }}
+          OSSRH_PASSWORD: ${{ secrets.OSSRH_TOKEN_V2 }}
+          MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}
+
+
+  publish-crates:
+    name: Publish crates.io
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          
+      - name: Publish Flatbuffers
+        uses: katyo/publish-crates@v2
+        with:
+          path: ./rust/flatbuffers
+          registry-token: ${{ secrets.CARGO_TOKEN }}
+
+      - name: Publish Flexbuffers
+        uses: katyo/publish-crates@v2
+        with:
+          path: ./rust/flexbuffers
+          registry-token: ${{ secrets.CARGO_TOKEN }}

.github/workflows/stale.yml

@@ -1,8 +1,13 @@
 name: Mark stale issues and pull requests
+permissions:
+  issues: write
+  pull-requests: write
 
 on:
+  # For manual tests.
+  workflow_dispatch:
   schedule:
-  - cron: "30 20 * * *"
+    - cron: "30 20 * * *"
 
 jobs:
   stale:
@@ -10,14 +15,23 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/stale@v4.0.0
+    - uses: actions/stale@v10
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-pr-message: 'This pull request is stale because it has been open 6 months with no activity. Please comment or this will be closed in 14 days.'
+        operations-per-run: 500
-        stale-issue-message: 'This issue is stale because it has been open 6 months with no activity. Please comment or this will be closed in 14 days.'
-        days-before-stale: 182 # 6 months
-        days-before-close: 14
-        operations-per-run: 1500
-        exempt-issue-labels: not-stale
-        exempt-pr-labels: not-stale
         exempt-all-milestones: true
+        remove-stale-when-updated: true
+      
+        stale-issue-message: 'This issue is stale because it has been open 6 months with no activity. Please comment or label `not-stale`, or this will be closed in 14 days.'
+        close-issue-message: 'This issue was automatically closed due to no activity for 6 months plus the 14 day notice period.'
+        days-before-issue-stale: 182 # 6 months
+        days-before-issue-close: 14 # 2 weeks
+        exempt-issue-labels: not-stale
+        
+        stale-pr-message: 'This pull request is stale because it has been open 6 months with no activity. Please comment or label `not-stale`, or this will be closed in 14 days.'
+        close-pr-message: 'This pull request was automatically closed due to no activity for 6 months plus the 14 day notice period.'
+        days-before-pr-stale: 182 # 6 months
+        days-before-pr-close: 14 # 2 week
+        exempt-pr-labels: not-stale
+        exempt-draft-pr: false
+

.gitignore

@@ -54,6 +54,8 @@ flathash
 flathash.exe
 flattests
 flattests.exe
+flattests_cpp17
+flattests_cpp17.exe
 flatsamplebinary
 flatsamplebinary.exe
 flatsampletext
@@ -76,7 +78,7 @@ tests/php/
 CMakeLists.txt.user
 CMakeScripts/**
 CTestTestfile.cmake
-FlatbuffersConfigVersion.cmake
+flatbuffers-config-version.cmake
 FlatBuffers.cbp
 build/Xcode/FlatBuffers.xcodeproj/project.xcworkspace/**
 build/Xcode/FlatBuffers.xcodeproj/xcuserdata/**
@@ -86,6 +88,7 @@ java/*.iml
 .idea
 *.iml
 target
+java/target
 **/*.pyc
 build/VS2010/FlatBuffers.sdf
 build/VS2010/FlatBuffers.opensdf
@@ -146,4 +149,14 @@ flatbuffers.pc
 **/html/**
 **/latex/**
 # https://cmake.org/cmake/help/latest/module/FetchContent.html#variable:FETCHCONTENT_BASE_DIR
-_deps/
+cmake-build-debug/
+_deps/
+**/.gradle/**
+kotlin/**/generated
+MODULE.bazel.lock
+
+# Ignore the generated docs
+docs/site
+
+# Ignore generated files
+*.fbs.h

.npmrc

@@ -0,0 +1 @@
+hoist=false

.travis.yml

@@ -1,215 +0,0 @@
-env:
-  global:
-    # Set at the root level as this is ignored when set under matrix.env.
-    - GCC_VERSION="4.9"
-    # Fail on first error if UBSAN or ASAN enabled for a target
-    - UBSAN_OPTIONS=halt_on_error=1
-    - ASAN_OPTIONS=halt_on_error=1
-    # Travis machines have 2 cores
-    - JOBS=2
-    - MAKEFLAGS="-j 2"
-
-conan-linux: &conan-linux
-  os: linux
-  dist: xenial
-  language: python
-  python: "3.7"
-  services:
-    - docker
-  install:
-    - ./conan/travis/install.sh
-  script:
-    - ./conan/travis/build.sh
-  if: tag IS present
-
-conan-linux-master: &conan-linux-master
-  os: linux
-  dist: xenial
-  language: python
-  python: "3.7"
-  services:
-    - docker
-  install:
-    - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then bash ./conan/travis/install.sh; fi'
-  script:
-    - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then bash ./conan/travis/build.sh; fi'
-  branches:
-    only:
-    - master
-
-conan-osx: &conan-osx
-  os: osx
-  language: generic
-  install:
-    - ./conan/travis/install.sh
-  script:
-    - ./conan/travis/build.sh
-  if: tag IS present
-
-matrix:
-  include:
-    #- language: python
-    #  python: "2.7"
-    #  install:
-    #    - "pip install wheel twine"
-    #  script:
-    #    - "cd python/"
-    #    - 'VERSION="$TRAVIS_TAG" python setup.py sdist bdist_wheel'
-    #    - "cd ../"
-    #  deploy:
-    #    # Checkpointed release builds.
-    #    - provider: script
-    #      script: .travis/deploy-python.sh
-    #      skip_cleanup: true
-    #      on:
-    #        tags: true
-    #        # all_branches must be set with tags: true. See below post:
-    #        # https://stackoverflow.com/a/27775257/1076585
-    #        all_branches: true
-    #    # Produce a new build for the cutting edge when master changes.
-    #    - provider: script
-    #      script: .travis/deploy-python.sh
-    #      skip_cleanup: true
-    #      on:
-    #        branch: master
-    - language: cpp
-      os:
-        - linux
-
-      addons:
-        apt:
-          packages:
-            - docker-ce
-      script:
-        - bash .travis/build-and-run-docker-test-containers.sh
-
-    - language: cpp
-      os:
-        - linux
-
-      compiler:
-        - gcc
-
-      env:
-        matrix:
-          - BUILD_TYPE=Debug
-          - BUILD_TYPE=Release
-
-      before_install:
-      - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test; fi
-      - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get update -qq; fi
-      - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install -qq g++-$GCC_VERSION; fi
-      - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install -qq gcc-$GCC_VERSION; fi
-      - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ln -s -v -f $(which g++-$GCC_VERSION) /usr/bin/g++; fi
-      - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ln -s -v -f $(which gcc-$GCC_VERSION) /usr/bin/gcc; fi
-
-      script:
-      - pip install cmake
-      - bash .travis/check-sources.sh
-      - bash grpc/build_grpc.sh
-      - cmake .
-        -DCMAKE_BUILD_TYPE=$BUILD_TYPE
-        -DFLATBUFFERS_BUILD_GRPCTEST=ON
-        -DGRPC_INSTALL_PATH=$TRAVIS_BUILD_DIR/google/grpc/install
-        -DPROTOBUF_DOWNLOAD_PATH=$TRAVIS_BUILD_DIR/google/grpc/third_party/protobuf
-        -DFLATBUFFERS_CODE_SANITIZE=ON
-      - cmake --build . --target all --clean-first -- -j${JOBS}
-      - LD_LIBRARY_PATH=$TRAVIS_BUILD_DIR/google/grpc/install/lib ctest --extra-verbose --output-on-failure
-
-    - language: cpp
-      os: osx
-      osx_image: xcode9.3
-      env:
-        matrix:
-          - BUILD_TYPE=Debug
-          - BUILD_TYPE=Release
-
-      script:
-      - pip install --user cmake
-      - mkdir ~/cmake_path
-      - ln -s $(find ~/Library/Python -name cmake -type f | head -n 1) ~/cmake_path/cmake
-      - ln -s $(find ~/Library/Python -name ctest -type f | head -n 1) ~/cmake_path/ctest
-      - export PATH=~/cmake_path:${PATH}
-      - bash grpc/build_grpc.sh
-      - cmake .
-        -DCMAKE_BUILD_TYPE=$BUILD_TYPE
-        -DFLATBUFFERS_BUILD_GRPCTEST=ON
-        -DGRPC_INSTALL_PATH=$TRAVIS_BUILD_DIR/google/grpc/install
-        -DPROTOBUF_DOWNLOAD_PATH=$TRAVIS_BUILD_DIR/google/grpc/third_party/protobuf
-        -DFLATBUFFERS_CODE_SANITIZE=ON
-      - cmake --build . -- -j${JOBS}
-      - DYLD_LIBRARY_PATH=$TRAVIS_BUILD_DIR/google/grpc/install/lib ctest --extra-verbose --output-on-failure
-
-    - <<: *conan-linux-master
-      env: CONAN_GCC_VERSIONS=8 CONAN_DOCKER_IMAGE=conanio/gcc8
-    - <<: *conan-linux
-      env: CONAN_GCC_VERSIONS=4.9 CONAN_DOCKER_IMAGE=conanio/gcc49
-    - <<: *conan-linux
-      env: CONAN_GCC_VERSIONS=5 CONAN_DOCKER_IMAGE=conanio/gcc5
-    - <<: *conan-linux
-      env: CONAN_GCC_VERSIONS=6 CONAN_DOCKER_IMAGE=conanio/gcc6
-    - <<: *conan-linux
-      env: CONAN_GCC_VERSIONS=7 CONAN_DOCKER_IMAGE=conanio/gcc7
-    - <<: *conan-linux
-      env: CONAN_GCC_VERSIONS=8 CONAN_DOCKER_IMAGE=conanio/gcc8
-    - <<: *conan-linux
-      env: CONAN_GCC_VERSIONS=9 CONAN_DOCKER_IMAGE=conanio/gcc9
-    - <<: *conan-linux
-      env: CONAN_CLANG_VERSIONS=3.9 CONAN_DOCKER_IMAGE=conanio/clang39
-    - <<: *conan-linux
-      env: CONAN_CLANG_VERSIONS=4.0 CONAN_DOCKER_IMAGE=conanio/clang40
-    - <<: *conan-linux
-      env: CONAN_CLANG_VERSIONS=5.0 CONAN_DOCKER_IMAGE=conanio/clang50
-    - <<: *conan-linux
-      env: CONAN_CLANG_VERSIONS=6.0 CONAN_DOCKER_IMAGE=conanio/clang60
-    - <<: *conan-linux
-      env: CONAN_CLANG_VERSIONS=7.0 CONAN_DOCKER_IMAGE=conanio/clang7
-    - <<: *conan-linux
-      env: CONAN_CLANG_VERSIONS=8 CONAN_DOCKER_IMAGE=conanio/clang8
-    - <<: *conan-osx
-      osx_image: xcode7.3
-      env: CONAN_APPLE_CLANG_VERSIONS=7.3
-    - <<: *conan-osx
-      osx_image: xcode8.3
-      env: CONAN_APPLE_CLANG_VERSIONS=8.1
-    - <<: *conan-osx
-      osx_image: xcode9
-      env: CONAN_APPLE_CLANG_VERSIONS=9.0
-    - <<: *conan-osx
-      osx_image: xcode9.4
-      env: CONAN_APPLE_CLANG_VERSIONS=9.1
-    - <<: *conan-osx
-      osx_image: xcode10.2
-      env: CONAN_APPLE_CLANG_VERSIONS=10.0
-
-    - language: android
-      sudo: true
-      dist: trusty
-      android:
-        components:
-          - tools
-          - platform-tools
-          - extra-android-m2repository
-        licenses:
-          - 'android-sdk-preview-license-52d11cd2'
-          - 'android-sdk-license-.+'
-          - 'google-gdk-license-.+'
-      compiler:
-        - gcc
-      before_install:
-        - echo y | sdkmanager "platforms;android-30"
-        - echo y | sdkmanager "build-tools;30.0.2"
-        - echo y | sdkmanager "ndk-bundle"
-        - echo y | sdkmanager "cmake;3.6.4111459"
-      script:
-        - cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .; make; export PATH="$PATH:${PWD}"
-        - cd android; ./gradlew clean build
-
-    - language: generic
-      if: type IN (pull_request)
-      os: linux
-      install:
-        - bash .travis/format_install.sh
-
-      script:
-        - bash .travis/format_check.sh

.travis/build-and-run-docker-test-containers.sh

@@ -1,45 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2018 Google Inc. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-set -e
-
-docker build -t build_cpp_image -f tests/docker/Dockerfile.testing.cpp.debian_buster .
-# Run tests with sanitizers  (--cap-add SYS_PTRACE), both GCC and Clang.
-cpp_test_args="--cap-add SYS_PTRACE build_cpp_image sh ./tests/docker/cpp_test.run.sh Debug"
-docker run --rm $cpp_test_args
-docker run --rm --env CC=/usr/bin/clang --env CXX=/usr/bin/clang++ $cpp_test_args
-# Build flatc on debian once to speed up the test loop below.
-docker run --name flatc_container build_cpp_image sh ./tests/docker/build_flatc.run.sh Debug
-# All dependent dockers refer to 'flatc_debian_stretch'.
-docker cp flatc_container:/flatbuffers/flatc flatc_debian_stretch
-
-for f in $(ls tests/docker/languages | sort)
-do
-        # docker pull sometimes fails for unknown reasons, probably travisci-related. this retries the pull we need a few times.
-        REQUIRED_BASE_IMAGE=$(cat tests/docker/languages/${f} | head -n 1  | awk ' { print $2 } ')
-
-        set +e
-        n=0
-        until [ $n -ge 5 ]
-        do
-           docker pull $REQUIRED_BASE_IMAGE && break
-           n=$[$n+1]
-           sleep 1
-        done
-        set -e
-
-        docker build -t $(echo ${f} | cut -f 3- -d .) -f tests/docker/languages/${f} .
-        echo "TEST OK: ${f}"
-done

.travis/check-sources.sh

@@ -1,33 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2018 Google Inc. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-set -e
-
-if [ -n "$1" ]; then
-  scan_dir="$1"
-else
-  scan_dir="$( pwd )"
-fi
-
-py_checker="$0.py"
-
-echo "scan root directory = '$scan_dir'"
-python3 --version
-# Scan recursively and search all *.cpp and *.h files using regex patterns.
-# Assume that script running from a root of Flatbuffers working dir.
-python3 $py_checker "ascii" "$scan_dir/include" "\.h$"
-python3 $py_checker "ascii" "$scan_dir/src"     "\.cpp$"
-python3 $py_checker "ascii" "$scan_dir/tests"   "\.h$"
-python3 $py_checker "utf-8" "$scan_dir/tests"   "\.cpp$"

.travis/check-sources.sh.py

@@ -1,35 +0,0 @@
-import os
-import re
-import sys
-
-def check_encoding(encoding, scan_dir, regex_pattern):
-  fname = None
-  try:
-    assert encoding in ['ascii', 'utf-8'], "unexpected encoding"
-    cmp = re.compile(regex_pattern)
-    for root, dirs, files in os.walk(scan_dir):
-      fname = root
-      cmp_list = [f for f in files if cmp.search(f) is not None]
-      for f in cmp_list:
-        fname = os.path.join(root, f)
-        with open(fname, mode='rb') as test_file:
-          btext = test_file.read()
-        # check encoding
-        btext.decode(encoding=encoding, errors="strict")
-        if encoding == "utf-8" and btext.startswith(b'\xEF\xBB\xBF'):
-          raise ValueError("unexpected BOM in file")
-        # check LF line endings
-        LF = btext.count(b'\n')
-        CR = btext.count(b'\r')
-        if CR!=0:
-          raise ValueError("invalid line endings: LF({})/CR({})".format(LF, CR))
-  except Exception as err:
-    print("ERROR with [{}]: {}".format(fname, err))
-    return -1
-  else:
-    return 0
-
-if __name__ == "__main__":
-  # python check-sources.sh.py 'ascii' '.' '.*\.(cpp|h)$'
-  res = check_encoding(sys.argv[1], sys.argv[2], sys.argv[3])
-  sys.exit(0 if res == 0 else -1)

.travis/deploy-python.sh

@@ -1,12 +0,0 @@
-#!/bin/bash
-
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-PROD_REPOSITORY="https://upload.pypi.org/legacy/"
-TEST_REPOSITORY="https://test.pypi.org/legacy/"
-
-twine upload \
-    --username "$PYPI_USERNAME" \
-    --password "$PYPI_PASSWORD" \
-    --repository-url "$PROD_REPOSITORY" \
-    "$DIR/../python/dist/"*
-

.travis/format_check.sh

@@ -1,52 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2021 Google Inc. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -e
-
-# HACKY solution to make nodejs work.
-source ~/.nvm/nvm.sh
-nvm alias default node
-nvm use default
-
-sh scripts/clang-format-git.sh
-
-# Check formatting for go lang
-
-cd go
-gofmt -w .
-cd ..
-cd grpc/examples/go
-sh format.sh
-cd ../../..
-
-node_modules/.bin/eslint ts/** --ext .ts --quiet --fix
-
-#PYTHON IS DISABLED UNTIL WE CREATE A .pylintrc FILE FOR IT
-pylint python/** --disable=all
-
-swiftformat --config swift.swiftformat .
-
-
-if ! git diff --quiet; then
-  echo >&2
-  echo "ERROR: ********************************************************" >&2
-  echo "ERROR: The following differences were found after running" >&2
-  echo "ERROR: .travis/format_check.sh script. Maybe you forgot to format" >&2
-  echo "ERROR: the code after making changes? please check Formatters.md" >&2
-  echo "ERROR: ********************************************************" >&2
-  echo >&2
-  git diff --binary --exit-code
-fi

.travis/format_install.sh

@@ -1,90 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2020 Google Inc. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -e
-set -x
-
-# install devtools
-install_languages() {
-  sudo apt update
-
-  # Install nodeJS and yarn
-  wget https://raw.githubusercontent.com/creationix/nvm/v0.31.0/nvm.sh -O ~/.nvm/nvm.sh
-  source ~/.nvm/nvm.sh
-  nvm install node
-  node --version
-  curl -o- -L https://yarnpkg.com/install.sh | bash
-  export PATH="$HOME/.yarn/bin:$PATH"
-  yarn config set prefix ~/.yarn -g
-  export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$PATH"
-
-  # Install swift
-  sudo apt-get install \
-          binutils \
-          git \
-          libc6-dev \
-          libcurl3 \
-          libedit2 \
-          libgcc-5-dev \
-          libpython2.7 \
-          libsqlite3-0 \
-          libstdc++-5-dev \
-          libxml2 \
-          pkg-config \
-          tzdata \
-          zlib1g-dev
-
-  SWIFT_URL=https://swift.org/builds/swift-5.3.1-release/ubuntu1604/swift-5.3.1-RELEASE/swift-5.3.1-RELEASE-ubuntu16.04.tar.gz
-  curl -fSsL "$SWIFT_URL" -o swift.tar.gz
-
-  mkdir ~/swiftbuild
-  tar -xvzf swift.tar.gz -C ~/swiftbuild
-
-  export PATH="~/swiftbuild/swift-5.3.1-RELEASE-ubuntu16.04/usr/bin:$PATH"
-
-
-  mkdir ~/gobuild
-  wget -c https://golang.org/dl/go1.15.2.linux-amd64.tar.gz
-  tar -xvzf go1.15.2.linux-amd64.tar.gz -C ~/gobuild
-
-  export  PATH="~/gobuild/go/bin:$PATH"
-
-  swift --version
-  go version
-  yarn -v
-  node -v
-}
-
-install_formatters() {
-  # installing swift formatter
-  git clone --depth 1 --branch 0.47.4 https://github.com/nicklockwood/SwiftFormat.git
-  cd SwiftFormat
-  swift build -c release
-  sudo cp .build/release/swiftformat /usr/local/bin/swiftformat
-  cd ..
-
-  which yarn
-  which node
-  yarn -v
-  node -v
-
-  yarn install
-  pip install pylint
-}
-
-install_languages
-export PATH="~/swift/swift/usr/bin:$PATH"
-install_formatters

BUILD.bazel

@@ -8,6 +8,7 @@ package(
 
 exports_files([
     "LICENSE",
+    "tsconfig.json",
 ])
 
 config_setting(
@@ -24,6 +25,28 @@ config_setting(
     ],
 )
 
+filegroup(
+    name = "distribution",
+    srcs = [
+        ".bazelignore",
+        ".npmrc",
+        "BUILD.bazel",
+        "MODULE.bazel",
+        "build_defs.bzl",
+        "package.json",
+        "pnpm-lock.yaml",
+        "typescript.bzl",
+        "//grpc/src/compiler:distribution",
+        "//include/codegen:distribution",
+        "//reflection:distribution",
+        "//src:distribution",
+        "//ts:distribution",
+    ] + glob([
+        "include/flatbuffers/*.h",
+    ]),
+    visibility = ["//visibility:public"],
+)
+
 # Public flatc library to compile flatbuffer files at runtime.
 cc_library(
     name = "flatbuffers",
@@ -40,14 +63,16 @@ filegroup(
         "include/flatbuffers/allocator.h",
         "include/flatbuffers/array.h",
         "include/flatbuffers/base.h",
-        "include/flatbuffers/bfbs_generator.h",
         "include/flatbuffers/buffer.h",
         "include/flatbuffers/buffer_ref.h",
+        "include/flatbuffers/code_generator.h",
         "include/flatbuffers/code_generators.h",
         "include/flatbuffers/default_allocator.h",
         "include/flatbuffers/detached_buffer.h",
+        "include/flatbuffers/file_manager.h",
         "include/flatbuffers/flatbuffer_builder.h",
         "include/flatbuffers/flatbuffers.h",
+        "include/flatbuffers/flex_flat_util.h",
         "include/flatbuffers/flexbuffers.h",
         "include/flatbuffers/grpc.h",
         "include/flatbuffers/hash.h",
@@ -79,6 +104,7 @@ cc_library(
 # Public flatc compiler.
 cc_binary(
     name = "flatc",
+    data = ["//reflection:reflection_fbs_schema"],
     deps = [
         "//src:flatc",
     ],
@@ -95,15 +121,7 @@ filegroup(
 # Library used by flatbuffer_cc_library rules.
 cc_library(
     name = "runtime_cc",
-    hdrs = [
+    hdrs = ["//:public_headers"],
-        "include/flatbuffers/base.h",
-        "include/flatbuffers/flatbuffers.h",
-        "include/flatbuffers/flexbuffers.h",
-        "include/flatbuffers/stl_emulation.h",
-        "include/flatbuffers/util.h",
-        "include/flatbuffers/vector.h",
-        "include/flatbuffers/verifier.h",
-    ],
     linkstatic = 1,
     strip_include_prefix = "/include",
 )

CHANGELOG.md

@@ -0,0 +1,201 @@
+# Flatbuffers Change Log
+
+All major or breaking changes will be documented in this file, as well as any
+new features that should be highlighted. Minor fixes or improvements are not
+necessarily listed.
+
+## [25.12.19] (December 19 2025)(https://github.com/google/flatbuffers/releases/tag/v25.12.19)
+
+* [C++] Default emptry vector support (#8870)
+* [C++] Add --gen-absl-hash option (#8868)
+* [Kotlin] Upgrade to MacOS 15 (#8845)
+* [C++] Fix vector of table with naked ptrs (#8830)
+* [Python] Optimize Offset/Pad/Prep (#8808)
+* Implement `--file-names-only` (#8788)
+* [C++] Fix size verifer (#8740)
+
+## [25.9.23] (September 23 2025)(https://github.com/google/flatbuffers/releases/tag/v25.9.23)
+
+* flatc: `--grpc-callback-api` flag generates C++ gRPC Callback API server `CallbackService` skeletons AND client native callback/async stubs (unary + all streaming reactor forms) (opt-in, non-breaking, issue #8596).
+* Swift - Adds new API to reduce memory copying within swift (#8484)
+* Rust - Support Rust edition 2024 (#8638)
+* [C++] - Use the Google Style for clang-format without exceptions (#8706)
+
+## [25.2.10] (February 10 2025)(https://github.com/google/flatbuffers/releases/tag/v25.2.10)
+
+* Removed the old documentation pages. The new one is live at https://flatbuffers.dev
+* Swift version 6.0 support (#8414)
+
+## [25.1.24] (January 24 2025)(https://github.com/google/flatbuffers/releases/tag/v25.1.24)
+
+* Mostly related to bazel build support.
+* Min bazel supported is now 7 or higher, as WORKSPACE files are removed (#8509)
+* Minor C++ codegen fix removing extra semicolon (#8488)
+
+## [25.1.21] (January 21 2025)(https://github.com/google/flatbuffers/releases/tag/v25.1.21)
+
+* Rust Full Reflection (#8102)
+* Mostly documentation updates hosted at https://flatbuffers.dev
+
+## [24.3.25] (March 25 2024)(https://github.com/google/flatbuffers/releases/tag/v24.3.25)
+
+* Fixed license metadata parsing (#8253)
+* [C++] Allow string_view in `LookUpByKey` in addition to null-terminated c-style strings (#8203)
+
+## [24.3.7] (March 7 2024)(https://github.com/google/flatbuffers/releases/tag/v24.3.7)
+
+* Just to fix some of the CI build issues from the 24.3.6 release.
+
+## [24.3.6] (March 6 2024)(https://github.com/google/flatbuffers/releases/tag/v24.3.6)
+
+* Fix typescript object API to allow 0 values for null-default scalars (#7864)
+
+## [23.5.26 (May 26 2023)](https://github.com/google/flatbuffers/releases/tag/v23.5.26)
+
+* Mostly bug fixing for 64-bit support
+* Adds support for specifying underling type of unions in C++ and TS/JS (#7954)
+
+## [23.5.9 (May 9 2023)](https://github.com/google/flatbuffers/releases/tag/v23.5.9)
+
+* 64-bit support for C++ (#7935)
+
+## [23.5.8 (May 8 2023)](https://github.com/google/flatbuffers/releases/tag/v23.5.8)
+
+* add key_field to compiled tests
+* Add golden language directory
+* Rework cmake flatc codegeneration (#7938)
+* remove defining generated files in test srcs
+* Add binary schema reflection (#7932)
+* Migrate from rules_nodejs to rules_js/rules_ts (take 2) (#7928)
+* `flat_buffers.dart`: mark const variable finals for internal Dart linters
+* fixed some windows warnings (#7929)
+* inject no long for FBS generation to remove logs in flattests (#7926)
+* Revert "Migrate from rules_nodejs to rules_js/rules_ts (#7923)" (#7927)
+* Migrate from rules_nodejs to rules_js/rules_ts (#7923)
+* Only generate @kotlin.ExperimentalUnsigned annotation on create*Vector methods having an unsigned array type parameter. (#7881)
+* additional check for absl::string_view availability (#7897)
+* Optionally generate Python type annotations (#7858)
+* Replace deprecated command with environment file (#7921)
+* drop glibc from runtime dependencies (#7906)
+* Make JSON supporting advanced union features (#7869)
+* Allow to use functions from `BuildFlatBuffers.cmake` from a flatbuffers installation installed with CMake. (#7912)
+* TS/JS: Use TypeError instead of Error when appropriate (#7910)
+* Go: make generated code more compliant to "go fmt" (#7907)
+* Support file_identifier in Go (#7904)
+* Optionally generate type prefixes and suffixes for python code (#7857)
+* Go: add test for FinishWithFileIdentifier (#7905)
+* Fix go_sample.sh (#7903)
+* [TS/JS] Upgrade dependencies (#7889)
+* Add a FileWriter interface (#7821)
+* TS/JS: Use minvalue from enum if not found (#7888)
+* [CS] Verifier (#7850)
+* README.md: PyPI case typo (#7880)
+* Update go documentation link to point to root module (#7879)
+* use Bool for flatbuffers bool instead of Byte (#7876)
+* fix using null string in vector (#7872)
+* Add `flatbuffers-64` branch to CI for pushes
+* made changes to the rust docs so they would compile. new_with_capacity is deprecated should use with_capacity, get_root_as_monster should be root_as_monster (#7871)
+* Adding comment for code clarification (#7856)
+* ToCamelCase() when kLowerCamel now converts first char to lower. (#7838)
+* Fix help output for --java-checkerframework (#7854)
+* Update filename to README.md and improve formatting (#7855)
+* Update stale.yml
+* Updated remaining usages of LICENSE.txt
+
+## [23.3.3 (Mar 3 2023)](https://github.com/google/flatbuffers/releases/tag/v23.3.3)
+
+* Refactoring of `flatc` generators to use an interface (#7797).
+
+* Removed legacy cmake support and set min to 3.8 (#7801).
+
+## [23.1.21 (Jan 21 2023)](https://github.com/google/flatbuffers/releases/tag/v23.1.20)
+
+* Reworked entry points for Typescript/Javascript and compatibility for single
+  file build (#7510)
+
+## [23.1.20 (Jan 20 2023)](https://github.com/google/flatbuffers/releases/tag/v23.1.20)
+
+* Removed go.mod files after some versioning issues were being report (#7780).
+
+## [23.1.4 (Jan 4 2023)](https://github.com/google/flatbuffers/releases/tag/v23.1.4)
+
+* Major release! Just kidding, we are continuing the
+  [versioning scheme](https://github.com/google/flatbuffers/wiki/Versioning) of
+  using a date to signify releases. This results in the first release of the new
+  year to bump the tradition major version field.
+
+* Go minimum version is now 1.19 (#7720) with the addition of Go modules.
+
+* Added CI support for Big Endian regression testing (#7707).
+
+* Fixed `getFullyQualifiedName` in typescript to return name delimited by '.'
+  instead of '_' (#7730).
+
+* Fixed the versioning scheme to not include leading zeros which are not
+  consistently handled by every package manager. Only the last release
+  (12.12.06) should have suffered from this.
+
+## [22.12.06 (Dec 06 2022)](https://github.com/google/flatbuffers/releases/tag/v22.12.06)
+
+* Bug fixing release, no major changes.
+
+## [22.10.25 (Oct 25 2022)](https://github.com/google/flatbuffers/releases/tag/v22.10.25)
+
+* Added Nim language support with generator and runtime libraries (#7534).
+
+## [22.9.29 (Sept 29 2022)](https://github.com/google/flatbuffers/releases/tag/v22.9.29)
+
+* Rust soundness fixes to avoid the crate from bing labelled unsafe (#7518).
+
+## [22.9.24 (Sept 24 2022)](https://github.com/google/flatbuffers/releases/tag/v22.9.24)
+
+* 20 Major releases in a row? Nope, we switched to a new
+  [versioning scheme](https://github.com/google/flatbuffers/wiki/Versioning)
+  that is based on date.
+
+* Python supports fixed size arrays now (#7529).
+
+* Behavior change in how C++ object API uses `UnPackTo`. The original intent of
+  this was to reduce allocations by reusing an existing object to pack data
+  into. At some point, this logic started to merge the states of the two objects
+  instead of clearing the state of the packee. This change goes back to the
+  original intention, the packed object is cleared when getting data packed into
+  it (#7527).
+
+* Fixed a bug in C++ alignment that was using `sizeof()` instead of the intended
+  `AlignOf()` for structs (#7520).
+
+* C# has an
+  [official Nuget package](https://www.nuget.org/packages/Google.FlatBuffers)
+  now (#7496).
+
+## 2.0.8 (Aug 29 2022)
+
+* Fix for `--keep-prefix` the was generating the wrong include statements for
+  C++ (#7469). The bug was introduced in 2.0.7.
+
+* Added the `Verifier::Options` option struct to allow specifying runtime
+  configuration settings for the verifier (#7489). This allows to skip verifying
+  nested flatbuffers, a on-by-default change that was introduced in 2.0.7. This
+  deprecates the existing `Verifier` constructor, which may be removed in a
+  future version.
+
+* Refactor of `tests/test.cpp` that lead to ~10% speedup in compilation of the
+  entire project (#7487).
+
+## 2.0.7 (Aug 22 2022)
+
+* This is the first version with an explicit change log, so all the previous
+  features will not be listed.
+
+* Verifier now checks that buffers are at least the minimum size required to be
+  a flatbuffers (12 bytes). This includes nested flatbuffers, which previously
+  could be declared valid at size 0.
+
+* Annotated binaries. Given a flatbuffer binary and a schema (or binary schema)
+  one can generate an annotated flatbuffer (.afb) to describe each byte in the
+  binary with schema metadata and value.
+
+* First binary schema generator (Lua) to generate Lua code via a .bfbs file.
+  This is mostly an implementation detail of flatc internals, but will be slowly
+  applied to the other language generators.

CMake/BuildFlatBuffers.cmake

@@ -59,6 +59,9 @@ function(build_flatbuffers flatbuffers_schemas
   if(FLATBUFFERS_FLATC_EXECUTABLE)
     set(FLATC_TARGET "")
     set(FLATC ${FLATBUFFERS_FLATC_EXECUTABLE})
+  elseif(TARGET flatbuffers::flatc)
+    set(FLATC_TARGET flatbuffers::flatc)
+    set(FLATC flatbuffers::flatc)
   else()
     set(FLATC_TARGET flatc)
     set(FLATC flatc)
@@ -95,7 +98,7 @@ function(build_flatbuffers flatbuffers_schemas
       set(generated_include ${generated_includes_dir}/${filename}_generated.h)
       add_custom_command(
         OUTPUT ${generated_include}
-        COMMAND ${FLATC} ${FLATC_ARGS}
+        COMMAND ${FLATC} ${FLATC_SCHEMA_ARGS}
         -o ${generated_includes_dir}
         ${include_params}
         -c ${schema}
@@ -157,6 +160,10 @@ endfunction()
 # other flagc flags using the FLAGS option to change the behavior of the flatc
 # tool.
 #
+# When the target_link_libraries is done within a different directory than
+# flatbuffers_generate_headers is called, then the target should also be dependent
+# the custom generation target called GENERATE_<TARGET>.
+#
 # Arguments:
 #   TARGET: The name of the target to generate.
 #   SCHEMAS: The list of schema files to generate code for.
@@ -182,6 +189,9 @@ endfunction()
 #     target_link_libraries(MyExecutableTarget
 #         PRIVATE my_generated_headers_target
 #     )
+#
+# Optional (only needed within different directory):
+#     add_dependencies(app GENERATE_my_generated_headers_target)
 function(flatbuffers_generate_headers)
   # Parse function arguments.
   set(options)
@@ -204,6 +214,9 @@ function(flatbuffers_generate_headers)
   if(FLATBUFFERS_FLATC_EXECUTABLE)
     set(FLATC_TARGET "")
     set(FLATC ${FLATBUFFERS_FLATC_EXECUTABLE})
+  elseif(TARGET flatbuffers::flatc)
+    set(FLATC_TARGET flatbuffers::flatc)
+    set(FLATC flatbuffers::flatc)
   else()
     set(FLATC_TARGET flatc)
     set(FLATC flatc)
@@ -226,20 +239,37 @@ function(flatbuffers_generate_headers)
          "--include-prefix" ${FLATBUFFERS_GENERATE_HEADERS_INCLUDE_PREFIX})
   endif()
 
+  set(generated_custom_commands)
+
   # Create rules to generate the code for each schema.
   foreach(schema ${FLATBUFFERS_GENERATE_HEADERS_SCHEMAS})
     get_filename_component(filename ${schema} NAME_WE)
     set(generated_include "${generated_include_dir}/${filename}_generated.h")
+
+    # Generate files for grpc if needed
+    set(generated_source_file)
+    if("${FLATBUFFERS_GENERATE_HEADERS_FLAGS}" MATCHES "--grpc")
+      # Check if schema file contain a rpc_service definition
+      file(STRINGS ${schema} has_grpc REGEX "rpc_service")
+      if(has_grpc)
+        list(APPEND generated_include "${generated_include_dir}/${filename}.grpc.fb.h")
+        set(generated_source_file "${generated_include_dir}/${filename}.grpc.fb.cc")
+      endif()
+    endif()
+
     add_custom_command(
-      OUTPUT ${generated_include}
+      OUTPUT ${generated_include} ${generated_source_file}
       COMMAND ${FLATC} ${FLATC_ARGS}
       -o ${generated_include_dir}
       ${include_params}
       -c ${schema}
       ${FLATBUFFERS_GENERATE_HEADERS_FLAGS}
       DEPENDS ${FLATC_TARGET} ${schema}
-      WORKING_DIRECTORY "${working_dir}")
+      WORKING_DIRECTORY "${working_dir}"
+      COMMENT "Building ${schema} flatbuffers...")
     list(APPEND all_generated_header_files ${generated_include})
+    list(APPEND all_generated_source_files ${generated_source_file})
+    list(APPEND generated_custom_commands "${generated_include}" "${generated_source_file}")
 
     # Geneate the binary flatbuffers schemas if instructed to.
     if (NOT ${FLATBUFFERS_GENERATE_HEADERS_BINARY_SCHEMAS_DIR} STREQUAL "")
@@ -253,10 +283,17 @@ function(flatbuffers_generate_headers)
         ${schema}
         DEPENDS ${FLATC_TARGET} ${schema}
         WORKING_DIRECTORY "${working_dir}")
+      list(APPEND generated_custom_commands "${binary_schema}")
       list(APPEND all_generated_binary_files ${binary_schema})
     endif()
   endforeach()
 
+  # Create an additional target as add_custom_command scope is only within same directory (CMakeFile.txt)
+  set(generate_target GENERATE_${FLATBUFFERS_GENERATE_HEADERS_TARGET})
+  add_custom_target(${generate_target} ALL
+                    DEPENDS ${generated_custom_commands}
+                    COMMENT "Generating flatbuffer target ${FLATBUFFERS_GENERATE_HEADERS_TARGET}")
+
   # Set up interface library
   add_library(${FLATBUFFERS_GENERATE_HEADERS_TARGET} INTERFACE)
   target_sources(
@@ -264,11 +301,11 @@ function(flatbuffers_generate_headers)
     INTERFACE
       ${all_generated_header_files}
       ${all_generated_binary_files}
+      ${all_generated_source_files}
       ${FLATBUFFERS_GENERATE_HEADERS_SCHEMAS})
   add_dependencies(
     ${FLATBUFFERS_GENERATE_HEADERS_TARGET}
-    ${FLATC}
+    ${FLATC_TARGET})
-    ${FLATBUFFERS_GENERATE_HEADERS_SCHEMAS})
   target_include_directories(
     ${FLATBUFFERS_GENERATE_HEADERS_TARGET}
     INTERFACE ${generated_target_dir})
@@ -278,6 +315,10 @@ function(flatbuffers_generate_headers)
     TREE "${generated_target_dir}"
     PREFIX "Flatbuffers/Generated/Headers Files"
     FILES ${all_generated_header_files})
+  source_group(
+    TREE "${generated_target_dir}"
+    PREFIX "Flatbuffers/Generated/Source Files"
+    FILES ${all_generated_source_files})
   source_group(
     TREE ${working_dir}
     PREFIX "Flatbuffers/Schemas"
@@ -346,6 +387,9 @@ function(flatbuffers_generate_binary_files)
   if(FLATBUFFERS_FLATC_EXECUTABLE)
     set(FLATC_TARGET "")
     set(FLATC ${FLATBUFFERS_FLATC_EXECUTABLE})
+  elseif(TARGET flatbuffers::flatc)
+    set(FLATC_TARGET flatbuffers::flatc)
+    set(FLATC flatbuffers::flatc)
   else()
     set(FLATC_TARGET flatc)
     set(FLATC flatc)
@@ -371,7 +415,8 @@ function(flatbuffers_generate_binary_files)
       -b ${FLATBUFFERS_GENERATE_BINARY_FILES_SCHEMA} ${json_file}
       ${FLATBUFFERS_GENERATE_BINARY_FILES_FLAGS}
       DEPENDS ${FLATC_TARGET} ${json_file}
-      WORKING_DIRECTORY "${working_dir}")
+      WORKING_DIRECTORY "${working_dir}"
+      COMMENT "Building ${json_file} binary flatbuffers...")
       list(APPEND all_generated_binary_files ${generated_binary_file})
   endforeach()
 

CMake/FlatbuffersConfig.cmake

@@ -1,4 +0,0 @@
-include("${CMAKE_CURRENT_LIST_DIR}/FlatbuffersTargets.cmake" OPTIONAL)
-include("${CMAKE_CURRENT_LIST_DIR}/FlatcTargets.cmake" OPTIONAL)
-include("${CMAKE_CURRENT_LIST_DIR}/FlatbuffersSharedTargets.cmake" OPTIONAL)
-

CMake/PackageDebian.cmake

@@ -17,23 +17,9 @@ if (UNIX)
     SET(CPACK_PACKAGE_VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}-${VERSION_COMMIT}")
     SET(CPACK_DEBIAN_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION}")
 
-    # Derive architecture
-    IF(NOT CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
-      FIND_PROGRAM(DPKG_CMD dpkg)
-      IF(NOT DPKG_CMD)
-        MESSAGE(STATUS "Can not find dpkg in your path, default to i386.")
-        SET(CPACK_DEBIAN_PACKAGE_ARCHITECTURE i386)
-      ENDIF(NOT DPKG_CMD)
-      EXECUTE_PROCESS(COMMAND "${DPKG_CMD}" --print-architecture
-        OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-        )
-    ENDIF(NOT CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
-
     # Package name
     SET(CPACK_DEBIAN_PACKAGE_NAME "flatbuffers")
-    SET(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/LICENSE.txt)
+    SET(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/LICENSE)
-    SET(CPACK_PACKAGE_FILE_NAME
+    set(CPACK_DEBIAN_FILE_NAME "DEB-DEFAULT")
-        "${CPACK_DEBIAN_PACKAGE_NAME}_${CPACK_DEBIAN_PACKAGE_VERSION}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
 
 endif(UNIX)

CMake/PackageRedhat.cmake

@@ -15,14 +15,14 @@ if (UNIX)
 
     set(CPACK_RPM_PACKAGE_NAME "flatbuffers")
 
-    # Assume this is not a cross complation build.
+    # Assume this is not a cross compilation build.
     if(NOT CPACK_RPM_PACKAGE_ARCHITECTURE)
         set(CPACK_RPM_PACKAGE_ARCHITECTURE "${CMAKE_SYSTEM_PROCESSOR}")
     endif(NOT CPACK_RPM_PACKAGE_ARCHITECTURE)
 
     set(CPACK_RPM_PACKAGE_VENDOR "Google, Inc.")
     set(CPACK_RPM_PACKAGE_LICENSE "Apache 2.0")
-    set(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/LICENSE.txt)
+    set(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/LICENSE)
     set(CPACK_PACKAGE_DESCRIPTION_FILE ${CMAKE_SOURCE_DIR}/CMake/DESCRIPTION.txt)
 
     # This may reduce rpm compatiblity with very old systems.

CMake/Version.cmake

@@ -1,28 +1,39 @@
-set(VERSION_MAJOR 2)
+set(VERSION_MAJOR 25)
-set(VERSION_MINOR 0)
+set(VERSION_MINOR 12)
-set(VERSION_PATCH 5)
+set(VERSION_PATCH 19)
 set(VERSION_COMMIT 0)
 
-find_program(GIT git)
+if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
-if(GIT)
+  find_program(GIT git)
-  execute_process(
+  if(GIT)
+    execute_process(
       COMMAND ${GIT} describe --tags
       WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
       OUTPUT_VARIABLE GIT_DESCRIBE_DIRTY
       OUTPUT_STRIP_TRAILING_WHITESPACE
       RESULT_VARIABLE GIT_DESCRIBE_RESULT
-  )
+    )
 
-  if(GIT_DESCRIBE_RESULT EQUAL 0)
+    if(GIT_DESCRIBE_RESULT EQUAL 0)
-    string(REGEX REPLACE "^v([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GIT_DESCRIBE_DIRTY}")
+      # Test if the most recent Git tag matches the pattern "v<major>.<minor>.<patch>*"
-    string(REGEX REPLACE "^v[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GIT_DESCRIBE_DIRTY}")
+      if(GIT_DESCRIBE_DIRTY MATCHES "^v[0-9]+\\.[0-9]+\\.[0-9]+.*")
-    string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${GIT_DESCRIBE_DIRTY}")
+        string(REGEX REPLACE "^v([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GIT_DESCRIBE_DIRTY}")
-    string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.[0-9]+\\-([0-9]+).*" "\\1" VERSION_COMMIT "${GIT_DESCRIBE_DIRTY}")
+        string(REGEX REPLACE "^v[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GIT_DESCRIBE_DIRTY}")
+        string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${GIT_DESCRIBE_DIRTY}")
+        string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.[0-9]+\\-([0-9]+).*" "\\1" VERSION_COMMIT "${GIT_DESCRIBE_DIRTY}")
+        # If the tag points to the commit, then only the tag is shown in "git describe"
+        if(VERSION_COMMIT STREQUAL GIT_DESCRIBE_DIRTY)
+          set(VERSION_COMMIT 0)
+        endif()
+      else()
+        message(WARNING "\"${GIT_DESCRIBE_DIRTY}\" does not match pattern v<major>.<minor>.<patch>-<commit>")
+      endif()
+    else()
+      message(WARNING "git describe failed with exit code: ${GIT_DESCRIBE_RESULT}\nMake sure you cloned with tags or run 'git fetch --tags'.")
+    endif()
   else()
-    message(WARNING "git describe failed with exit code: ${GIT_DESCRIBE_RESULT}")
+    message(WARNING "git is not found")
   endif()
-else()
-  message(WARNING "git is not found")
 endif()
 
 message(STATUS "Proceeding with version: ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}.${VERSION_COMMIT}")

CMake/flatbuffers-config.cmake

@@ -0,0 +1,4 @@
+include("${CMAKE_CURRENT_LIST_DIR}/FlatBuffersTargets.cmake" OPTIONAL)
+include("${CMAKE_CURRENT_LIST_DIR}/FlatcTargets.cmake" OPTIONAL)
+include("${CMAKE_CURRENT_LIST_DIR}/FlatBuffersSharedTargets.cmake" OPTIONAL)
+include("${CMAKE_CURRENT_LIST_DIR}/BuildFlatBuffers.cmake" OPTIONAL)

CMakeLists.txt

@@ -1,17 +1,13 @@
-cmake_minimum_required(VERSION 2.8.12)
+# This is the legacy minimum version flatbuffers supported for a while.
-
+cmake_minimum_required(VERSION 3.8...3.25.2)
-if (POLICY CMP0048)
-  cmake_policy(SET CMP0048 NEW)
-  project(FlatBuffers
-        DESCRIPTION "Flatbuffers serialization library"
-        VERSION 2.0.0
-        LANGUAGES CXX)
-else()
-  project(FlatBuffers)
-endif (POLICY CMP0048)
 
+# Attempt to read the current version of flatbuffers by looking at the latest tag.
 include(CMake/Version.cmake)
 
+project(FlatBuffers
+        VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
+        LANGUAGES CXX)
+
 # generate compile_commands.json
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
@@ -25,9 +21,8 @@ option(FLATBUFFERS_BUILD_FLATC "Enable the build of the flatbuffers compiler"
        ON)
 option(FLATBUFFERS_STATIC_FLATC "Build flatbuffers compiler with -static flag"
        OFF)
-option(FLATBUFFERS_BUILD_FLATHASH "Enable the build of flathash" ON)
+option(FLATBUFFERS_BUILD_FLATHASH "Enable the build of flathash" OFF)
-option(FLATBUFFERS_BUILD_BENCHMARKS "Enable the build of flatbenchmark. \"
+option(FLATBUFFERS_BUILD_BENCHMARKS "Enable the build of flatbenchmark."
-       Requires C++11."
        OFF)
 option(FLATBUFFERS_BUILD_GRPCTEST "Enable the build of grpctest" OFF)
 option(FLATBUFFERS_BUILD_SHAREDLIB
@@ -56,9 +51,35 @@ option(FLATBUFFERS_ENABLE_PCH
         Only work if CMake supports 'target_precompile_headers'. \"
         This can speed up compilation time."
        OFF)
-option(FLATBUFFERS_SKIP_MONSTER_EXTRA 
+option(FLATBUFFERS_SKIP_MONSTER_EXTRA
       "Skip generating monster_extra.fbs that contains non-supported numerical\"
       types." OFF)
+option(FLATBUFFERS_STRICT_MODE
+      "Build flatbuffers with all warnings as errors (-Werror or /WX)."
+      OFF)
+
+if(NOT DEFINED FLATBUFFERS_CPP_STD)
+  set(FLATBUFFERS_CPP_STD 11)
+endif()
+
+set(MSVC_LIKE OFF)
+if(MSVC OR CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC")
+    set(MSVC_LIKE ON)
+endif()
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  set(IS_CLANG ON)
+else()
+  set(IS_CLANG OFF)
+endif()
+
+if(DEFINED FLATBUFFERS_COMPILATION_TIMINGS)
+  message("Recording Compilation Timings to ${FLATBUFFERS_COMPILATION_TIMINGS}")
+  file(REMOVE ${FLATBUFFERS_COMPILATION_TIMINGS})
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "time -f 'Wall: %E User: %U Sys: %S | %C' -q -a -o ${FLATBUFFERS_COMPILATION_TIMINGS}")
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_CUSTOM "time -f 'Wall: %E User: %U Sys: %S | %C' -q -a -o ${FLATBUFFERS_COMPILATION_TIMINGS}")
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "time -f 'Wall: %E User: %U Sys: %S | %C' -q -a -o ${FLATBUFFERS_COMPILATION_TIMINGS}")
+endif()
 
 if(NOT FLATBUFFERS_BUILD_FLATC AND FLATBUFFERS_BUILD_TESTS)
     message(WARNING
@@ -77,7 +98,7 @@ if(NOT DEFINED FLATBUFFERS_LOCALE_INDEPENDENT)
   include(CheckCXXSymbolExists)
 
   set(FLATBUFFERS_LOCALE_INDEPENDENT 0)
-  if(MSVC)
+  if(MSVC_LIKE)
     check_cxx_symbol_exists(_strtof_l stdlib.h FLATBUFFERS_HAS_STRTOF_L)
     check_cxx_symbol_exists(_strtoui64_l stdlib.h FLATBUFFERS_HAS_STRTOULL_L)
   else()
@@ -90,18 +111,28 @@ if(NOT DEFINED FLATBUFFERS_LOCALE_INDEPENDENT)
 endif()
 add_definitions(-DFLATBUFFERS_LOCALE_INDEPENDENT=$<BOOL:${FLATBUFFERS_LOCALE_INDEPENDENT}>)
 
+if(NOT WIN32)
+  include(CheckSymbolExists)
+  check_symbol_exists(realpath "stdlib.h" HAVE_REALPATH)
+  if(NOT HAVE_REALPATH)
+    add_definitions(-DFLATBUFFERS_NO_ABSOLUTE_PATH_RESOLUTION)
+  endif()
+endif()
+
 set(FlatBuffers_Library_SRCS
   include/flatbuffers/allocator.h
   include/flatbuffers/array.h
   include/flatbuffers/base.h
-  include/flatbuffers/bfbs_generator.h
   include/flatbuffers/buffer.h
   include/flatbuffers/buffer_ref.h
   include/flatbuffers/default_allocator.h
   include/flatbuffers/detached_buffer.h
+  include/flatbuffers/code_generator.h
+  include/flatbuffers/file_manager.h
   include/flatbuffers/flatbuffer_builder.h
   include/flatbuffers/flatbuffers.h
   include/flatbuffers/flexbuffers.h
+  include/flatbuffers/flex_flat_util.h
   include/flatbuffers/hash.h
   include/flatbuffers/idl.h
   include/flatbuffers/minireflect.h
@@ -116,6 +147,8 @@ set(FlatBuffers_Library_SRCS
   include/flatbuffers/vector.h
   include/flatbuffers/vector_downward.h
   include/flatbuffers/verifier.h
+  src/file_manager.cpp
+  src/file_name_manager.cpp
   src/idl_parser.cpp
   src/idl_gen_text.cpp
   src/reflection.cpp
@@ -124,28 +157,43 @@ set(FlatBuffers_Library_SRCS
 
 set(FlatBuffers_Compiler_SRCS
   ${FlatBuffers_Library_SRCS}
+  src/idl_gen_binary.cpp
+  src/idl_gen_text.cpp
   src/idl_gen_cpp.cpp
   src/idl_gen_csharp.cpp
   src/idl_gen_dart.cpp
   src/idl_gen_kotlin.cpp
+  src/idl_gen_kotlin_kmp.cpp
   src/idl_gen_go.cpp
   src/idl_gen_java.cpp
   src/idl_gen_ts.cpp
   src/idl_gen_php.cpp
   src/idl_gen_python.cpp
   src/idl_gen_lobster.cpp
-  src/idl_gen_lua.cpp
   src/idl_gen_rust.cpp
   src/idl_gen_fbs.cpp
   src/idl_gen_grpc.cpp
   src/idl_gen_json_schema.cpp
   src/idl_gen_swift.cpp
+  src/idl_namer.h
+  src/namer.h
   src/flatc.cpp
   src/flatc_main.cpp
   src/bfbs_gen.h
   src/bfbs_gen_lua.h
+  src/bfbs_gen_nim.h
+  src/bfbs_namer.h
+  include/codegen/idl_namer.h
+  include/codegen/namer.h
+  include/codegen/python.h
+  include/codegen/python.cc
   include/flatbuffers/code_generators.h
+  src/binary_annotator.h
+  src/binary_annotator.cpp
+  src/annotated_binary_text_gen.h
+  src/annotated_binary_text_gen.cpp
   src/bfbs_gen_lua.cpp
+  src/bfbs_gen_nim.cpp
   src/code_generators.cpp
   grpc/src/compiler/schema_interface.h
   grpc/src/compiler/cpp_generator.h
@@ -170,32 +218,34 @@ set(FlatHash_SRCS
 set(FlatBuffers_Tests_SRCS
   ${FlatBuffers_Library_SRCS}
   src/idl_gen_fbs.cpp
+  tests/default_vectors_strings_test.cpp
+  tests/default_vectors_strings_test.h
+  tests/evolution_test.cpp
+  tests/flexbuffers_test.cpp
+  tests/fuzz_test.cpp
+  tests/json_test.cpp
+  tests/key_field_test.cpp
+  tests/monster_test.cpp
+  tests/optional_scalars_test.cpp
+  tests/parser_test.cpp
+  tests/proto_test.cpp
+  tests/reflection_test.cpp
   tests/test.cpp
   tests/test_assert.h
   tests/test_assert.cpp
   tests/test_builder.h
   tests/test_builder.cpp
+  tests/util_test.cpp
+  tests/vector_table_naked_ptr_test.h
+  tests/vector_table_naked_ptr_test.cpp
   tests/native_type_test_impl.h
   tests/native_type_test_impl.cpp
+  tests/alignment_test.h
+  tests/alignment_test.cpp
+  tests/64bit/offset64_test.h
+  tests/64bit/offset64_test.cpp
   include/flatbuffers/code_generators.h
   src/code_generators.cpp
-  # file generate by running compiler on tests/monster_test.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/monster_test_generated.h
-  # file generate by running compiler on namespace_test/namespace_test1.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/namespace_test/namespace_test1_generated.h
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/namespace_test/namespace_test2_generated.h
-  # file generate by running compiler on union_vector/union_vector.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/union_vector/union_vector_generated.h
-  # file generate by running compiler on tests/arrays_test.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/arrays_test_generated.h
-  # file generate by running compiler on tests/native_type_test.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/native_type_test_generated.h
-  # file generate by running compiler on tests/monster_extra.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/monster_extra_generated.h
-  # file generate by running compiler on tests/monster_test.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/monster_test_bfbs_generated.h
-  # file generate by running compiler on tests/optional_scalars.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/optional_scalars_generated.h
 )
 
 set(FlatBuffers_Tests_CPP17_SRCS
@@ -203,32 +253,20 @@ set(FlatBuffers_Tests_CPP17_SRCS
   tests/test_assert.h
   tests/test_assert.cpp
   tests/cpp17/test_cpp17.cpp
-  # file generate by running compiler on tests/monster_test.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/cpp17/generated_cpp17/monster_test_generated.h
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/monster_test_generated.h
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/cpp17/generated_cpp17/optional_scalars_generated.h
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/optional_scalars_generated.h
 )
 
 set(FlatBuffers_Sample_Binary_SRCS
-  include/flatbuffers/flatbuffers.h
   samples/sample_binary.cpp
-  # file generated by running compiler on samples/monster.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h
 )
 
 set(FlatBuffers_Sample_Text_SRCS
   ${FlatBuffers_Library_SRCS}
   samples/sample_text.cpp
-  # file generated by running compiler on samples/monster.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h
 )
 
 set(FlatBuffers_Sample_BFBS_SRCS
   ${FlatBuffers_Library_SRCS}
   samples/sample_bfbs.cpp
-  # file generated by running compiler on samples/monster.fbs
-  ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h
 )
 
 set(FlatBuffers_GRPCTest_SRCS
@@ -244,95 +282,19 @@ set(FlatBuffers_GRPCTest_SRCS
   tests/test_builder.cpp
   grpc/tests/grpctest.cpp
   grpc/tests/message_builder_test.cpp
-  # file generate by running compiler on tests/monster_test.fbs
+  grpc/tests/grpctest_callback_compile.cpp
-  ${CMAKE_CURRENT_BINARY_DIR}/tests/monster_test_generated.h
+  grpc/tests/grpctest_callback_client_compile.cpp
 )
 
-# source_group(Compiler FILES ${FlatBuffers_Compiler_SRCS})
+# TODO(dbaileychess): Figure out how this would now work. I posted a question on
-# source_group(Tests FILES ${FlatBuffers_Tests_SRCS})
+# https://stackoverflow.com/questions/71772330/override-target-compile-options-via-cmake-command-line.
-
-if(EXISTS "${CMAKE_TOOLCHAIN_FILE}")
-  # do not apply any global settings if the toolchain
-  # is being configured externally
-  message(STATUS "Using toolchain file: ${CMAKE_TOOLCHAIN_FILE}.")
-elseif(CMAKE_COMPILER_IS_GNUCXX)
-  if(CYGWIN)
-    set(CMAKE_CXX_FLAGS
-      "${CMAKE_CXX_FLAGS} -std=gnu++11")
-  else(CYGWIN)
-    set(CMAKE_CXX_FLAGS
-      "${CMAKE_CXX_FLAGS} -std=c++0x")
-  endif(CYGWIN)
-  set(CMAKE_CXX_FLAGS
-    "${CMAKE_CXX_FLAGS} -Wall -pedantic -Werror -Wextra -Werror=shadow")
-  set(FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wold-style-cast")
-  if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.4)
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0)
-      set(CMAKE_CXX_FLAGS
-        "${CMAKE_CXX_FLAGS} -faligned-new -Werror=implicit-fallthrough=2")
-    endif()
-    set(CMAKE_CXX_FLAGS
-      "${CMAKE_CXX_FLAGS} -Wunused-result -Werror=unused-result -Wunused-parameter -Werror=unused-parameter")
-  endif()
-
-  # Certain platforms such as ARM do not use signed chars by default
-  # which causes issues with certain bounds checks.
-  set(CMAKE_CXX_FLAGS
-    "${CMAKE_CXX_FLAGS} -fsigned-char")
-
-elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
-  if(APPLE)
-    set(CMAKE_OSX_ARCHITECTURES "arm64;x86_64")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-  else()
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
-  endif()
-
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic -Werror -Wextra -Wno-unused-parameter")
-  set(FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wold-style-cast")
-  if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.8)
-    list(APPEND FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wimplicit-fallthrough" "-Wextra-semi" "-Werror=unused-private-field") # enable warning
-  endif()
-  if(FLATBUFFERS_LIBCXX_WITH_CLANG)
-    if(NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
-      set(CMAKE_CXX_FLAGS
-          "${CMAKE_CXX_FLAGS} -stdlib=libc++")
-    endif()
-    if(NOT ("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD" OR
-            "${CMAKE_SYSTEM_NAME}" MATCHES "Linux"))
-      set(CMAKE_EXE_LINKER_FLAGS
-          "${CMAKE_EXE_LINKER_FLAGS} -lc++abi")
-    endif()
-  endif()
-
-  # Certain platforms such as ARM do not use signed chars by default
-  # which causes issues with certain bounds checks.
-  set(CMAKE_CXX_FLAGS
-    "${CMAKE_CXX_FLAGS} -fsigned-char")
-
-elseif(MSVC)
-  # Visual Studio pedantic build settings
-  # warning C4512: assignment operator could not be generated
-  # warning C4316: object allocated on the heap may not be aligned
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /WX /wd4512 /wd4316")
-
-  # multi-core build.
-  add_definitions("/MP")
-endif()
-
 # Append FLATBUFFERS_CXX_FLAGS to CMAKE_CXX_FLAGS.
-if(DEFINED FLATBUFFERS_CXX_FLAGS AND NOT EXISTS "${CMAKE_TOOLCHAIN_FILE}")
+if(DEFINED FLATBUFFERS_CXX_FLAGS)
   message(STATUS "extend CXX_FLAGS with ${FLATBUFFERS_CXX_FLAGS}")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${FLATBUFFERS_CXX_FLAGS}")
 endif()
 message(STATUS "CMAKE_CXX_FLAGS: ${CMAKE_CXX_FLAGS}")
 
-if(FLATBUFFERS_CODE_COVERAGE)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -fprofile-arcs -ftest-coverage")
-  set(CMAKE_EXE_LINKER_FLAGS
-      "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
-endif()
-
 function(add_fsanitize_to_target _target _sanitizer)
   if(WIN32)
     target_compile_definitions(${_target} PRIVATE FLATBUFFERS_MEMORY_LEAK_TRACKING)
@@ -340,9 +302,7 @@ function(add_fsanitize_to_target _target _sanitizer)
   else()
     # FLATBUFFERS_CODE_SANITIZE: boolean {ON,OFF,YES,NO} or string with list of sanitizer.
     # List of sanitizer is string starts with '=': "=address,undefined,thread,memory".
-    if((${CMAKE_CXX_COMPILER_ID} MATCHES "Clang") OR
+    if(IS_CLANG OR (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 4.9))
-      ((${CMAKE_CXX_COMPILER_ID} MATCHES "GNU") AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.9"))
-    )
       set(_sanitizer_flags "=address,undefined")
       if(_sanitizer MATCHES "=.*")
         # override default by user-defined sanitizer list
@@ -353,13 +313,14 @@ function(add_fsanitize_to_target _target _sanitizer)
         "-fsanitize${_sanitizer_flags}")
       target_link_libraries(${_target} PRIVATE
         "-fsanitize${_sanitizer_flags}")
-      set_property(TARGET ${_target} PROPERTY POSITION_INDEPENDENT_CODE ON)
+      set_target_properties(${_target} PROPERTIES POSITION_INDEPENDENT_CODE ON)
       message(STATUS "Sanitizer ${_sanitizer_flags} added to ${_target}")
     endif()
   endif()
 endfunction()
 
 function(add_pch_to_target _target _pch_header)
+  # the command is available since cmake 3.16
   if(COMMAND target_precompile_headers)
     target_precompile_headers(${_target} PRIVATE ${_pch_header})
     if(NOT MSVC)
@@ -368,20 +329,124 @@ function(add_pch_to_target _target _pch_header)
   endif()
 endfunction()
 
-if(BIICODE)
-  include(biicode/cmake/biicode.cmake)
-  return()
-endif()
-
 include_directories(include)
 include_directories(grpc)
 
+# Creates an interface library that stores the configuration settings that each
+# target links too. This is a compromise between setting configuration globally
+# with add_compile_options() and the more targetted target_compile_options().
+# This way each target in this file can share settings and override them if
+# needed.
+add_library(ProjectConfig INTERFACE)
+target_compile_features(ProjectConfig
+  INTERFACE
+    cxx_std_${FLATBUFFERS_CPP_STD}
+)
+
+# Force the standard to be met.
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# We shouldn't rely on any compiler-extensions to make things work.
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+if(MSVC_LIKE)
+  target_compile_options(ProjectConfig
+    INTERFACE
+      /W4
+      $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
+        /WX       # Treat all compiler warnings as errors
+      >
+      /wd4512   # C4512: assignment operator could not be generated
+      /wd4316   # C4316: object allocated on the heap may not be aligned
+      /wd4456   # C4456: hides previous local declaration
+      $<$<CXX_COMPILER_ID:Clang>:
+        /D_CRT_SECURE_NO_WARNINGS
+      >
+  )
+else()
+  target_compile_options(ProjectConfig
+    INTERFACE
+      -Wall
+      $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
+        -Werror   # Treat all compiler warnings as errors
+
+        -fno-rtti # Disable runtime type information
+
+        $<$<CXX_COMPILER_ID:GNU>:
+          # False positive string overflow
+          # https://github.com/google/flatbuffers/issues/7366
+          -Wno-error=stringop-overflow
+        >
+      >
+      -pedantic
+      -Wextra
+      -Wno-unused-parameter
+      -Wold-style-cast
+      -fsigned-char
+      -Wnon-virtual-dtor
+
+      # This isn't working for some reason: $<$<CXX_COMPILER_ID:CLANG>:
+      $<$<BOOL:${IS_CLANG}>:
+        -Wnewline-eof
+        -Wno-unknown-warning-option
+        -Wmissing-declarations
+        -Wzero-as-null-pointer-constant
+        $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,3.8>:
+          -Wimplicit-fallthrough
+          -Wextra-semi
+          $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
+            -Werror=unused-private-field
+          >
+        >
+      >
+
+      $<$<CXX_COMPILER_ID:GNU>:
+        $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,4.4>:
+          -Wunused-result
+          -Wunused-parameter
+          -Werror=unused-parameter
+          -Wmissing-declarations
+        >
+        $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,4.7>:
+          -Wzero-as-null-pointer-constant
+        >
+        $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,7.0>:
+          -faligned-new
+          $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
+            -Werror=implicit-fallthrough=2
+          >
+        >
+        $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,8.0>:
+          -Wextra-semi
+        >
+      >
+
+      $<$<BOOL:${FLATBUFFERS_CODE_COVERAGE}>:
+        -g
+        -fprofile-arcs
+        -ftest-coverage
+      >
+    )
+
+  if(FLATBUFFERS_CODE_COVERAGE)
+    target_link_options(ProjectConfig
+      INTERFACE
+        -fprofile-arcs
+        -ftest-coverage
+    )
+  endif()
+endif()
+
 if(FLATBUFFERS_BUILD_FLATLIB)
   add_library(flatbuffers STATIC ${FlatBuffers_Library_SRCS})
+
   # Attach header directory for when build via add_subdirectory().
-  target_include_directories(flatbuffers INTERFACE
+  target_include_directories(flatbuffers
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>)
+    INTERFACE
-  target_compile_options(flatbuffers PRIVATE "${FLATBUFFERS_PRIVATE_CXX_FLAGS}")
+      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+  )
+  target_link_libraries(flatbuffers PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
+
   if(FLATBUFFERS_ENABLE_PCH)
     add_pch_to_target(flatbuffers include/flatbuffers/pch/pch.h)
   endif()
@@ -392,17 +457,21 @@ if(FLATBUFFERS_BUILD_FLATC)
   if(FLATBUFFERS_ENABLE_PCH)
     add_pch_to_target(flatc include/flatbuffers/pch/flatc_pch.h)
   endif()
-  target_compile_options(flatc PRIVATE "${FLATBUFFERS_PRIVATE_CXX_FLAGS}")
+
+  target_link_libraries(flatc PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
+  target_compile_options(flatc
+    PRIVATE
+      $<$<AND:$<BOOL:${MSVC_LIKE}>,$<CONFIG:Release>>:
+        /MT
+      >
+  )
+
   if(FLATBUFFERS_CODE_SANITIZE AND NOT WIN32)
     add_fsanitize_to_target(flatc ${FLATBUFFERS_CODE_SANITIZE})
   endif()
   if(NOT FLATBUFFERS_FLATC_EXECUTABLE)
     set(FLATBUFFERS_FLATC_EXECUTABLE $<TARGET_FILE:flatc>)
   endif()
-  if(MSVC)
-    # Make flatc.exe not depend on runtime dlls for easy distribution.
-    target_compile_options(flatc PUBLIC $<$<CONFIG:Release>:/MT>)
-  endif()
   if(FLATBUFFERS_STATIC_FLATC AND NOT MSVC)
     target_link_libraries(flatc PRIVATE -static)
   endif()
@@ -410,191 +479,119 @@ endif()
 
 if(FLATBUFFERS_BUILD_FLATHASH)
   add_executable(flathash ${FlatHash_SRCS})
+  target_link_libraries(flathash PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
 endif()
 
 if(FLATBUFFERS_BUILD_SHAREDLIB)
   add_library(flatbuffers_shared SHARED ${FlatBuffers_Library_SRCS})
-
+  target_link_libraries(flatbuffers_shared PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
-  # Shared object version: "major.minor.micro"
+  # FlatBuffers use calendar-based versioning and do not provide any ABI
-  # - micro updated every release when there is no API/ABI changes
+  # stability guarantees. Therefore, always use the full version as SOVERSION
-  # - minor updated when there are additions in API/ABI
+  # in order to avoid breaking reverse dependencies on upgrades.
-  # - major (ABI number) updated when there are changes in ABI (or removals)
+  set(FlatBuffers_Library_SONAME_FULL "${PROJECT_VERSION}")
-  set(FlatBuffers_Library_SONAME_MAJOR ${VERSION_MAJOR})
+  set_target_properties(flatbuffers_shared PROPERTIES
-  set(FlatBuffers_Library_SONAME_FULL "${FlatBuffers_Library_SONAME_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
+                        OUTPUT_NAME flatbuffers
-  set_target_properties(flatbuffers_shared PROPERTIES OUTPUT_NAME flatbuffers
+                        SOVERSION "${FlatBuffers_Library_SONAME_FULL}"
-                        SOVERSION "${FlatBuffers_Library_SONAME_MAJOR}"
                         VERSION "${FlatBuffers_Library_SONAME_FULL}")
   if(FLATBUFFERS_ENABLE_PCH)
     add_pch_to_target(flatbuffers_shared include/flatbuffers/pch/pch.h)
   endif()
 endif()
 
-# Global list of generated files.
+function(compile_schema SRC_FBS OPT SUFFIX OUT_GEN_FILE) 
-# Use the global property to be independent of PARENT_SCOPE.
-set_property(GLOBAL PROPERTY FBS_GENERATED_OUTPUTS)
-
-function(get_generated_output generated_files)
-  get_property(tmp GLOBAL PROPERTY FBS_GENERATED_OUTPUTS)
-  set(${generated_files} ${tmp} PARENT_SCOPE)
-endfunction(get_generated_output)
-
-function(register_generated_output file_name)
-  get_property(tmp GLOBAL PROPERTY FBS_GENERATED_OUTPUTS)
-  list(APPEND tmp ${file_name})
-  set_property(GLOBAL PROPERTY FBS_GENERATED_OUTPUTS ${tmp})
-endfunction(register_generated_output)
-
-function(compile_flatbuffers_schema_to_cpp_opt SRC_FBS OPT)
-  if(FLATBUFFERS_BUILD_LEGACY)
-    set(OPT ${OPT};--cpp-std c++0x)
-  else()
-    # --cpp-std is defined by flatc default settings.
-  endif()
-  message(STATUS "`${SRC_FBS}`: add generation of C++ code with '${OPT}'")
   get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH)
-  string(REGEX REPLACE "\\.fbs$" "_generated.h" GEN_HEADER ${SRC_FBS})
+  string(REGEX REPLACE "\\.fbs$" "${SUFFIX}.h" GEN_HEADER ${SRC_FBS})
   add_custom_command(
     OUTPUT ${GEN_HEADER}
     COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}"
-            --cpp --gen-mutable --gen-object-api --reflect-names
+      ${OPT}
-            --cpp-ptr-type flatbuffers::unique_ptr # Used to test with C++98 STLs
+      --filename-suffix ${SUFFIX}
-            ${OPT}
+      -o "${SRC_FBS_DIR}"
-            -I "${CMAKE_CURRENT_SOURCE_DIR}/tests/include_test"
+      "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
-            -o "${SRC_FBS_DIR}"
+    DEPENDS flatc ${SRC_FBS}
-            "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
+    COMMENT "flatc generation: `${SRC_FBS}` -> `${GEN_HEADER}`"
-    DEPENDS flatc
+  )
-    COMMENT "Run generation: '${GEN_HEADER}'")
+  set(${OUT_GEN_FILE} ${GEN_HEADER} PARENT_SCOPE)
-  register_generated_output(${GEN_HEADER})
 endfunction()
 
-function(compile_flatbuffers_schema_to_cpp SRC_FBS)
+function(compile_schema_for_test SRC_FBS OPT)
-  compile_flatbuffers_schema_to_cpp_opt(${SRC_FBS} "--no-includes;--gen-compare")
+  compile_schema("${SRC_FBS}" "${OPT}" "_generated" GEN_FILE)
+  target_sources(flattests PRIVATE ${GEN_FILE})
 endfunction()
 
-function(compile_flatbuffers_schema_to_binary SRC_FBS)
+function(compile_schema_for_test_fbsh SRC_FBS OPT)
-  message(STATUS "`${SRC_FBS}`: add generation of binary (.bfbs) schema")
+  compile_schema("${SRC_FBS}" "${OPT}" ".fbs" GEN_FILE)
-  get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH)
+  target_sources(flattests PRIVATE ${GEN_FILE})
-  string(REGEX REPLACE "\\.fbs$" ".bfbs" GEN_BINARY_SCHEMA ${SRC_FBS})
-  # For details about flags see generate_code.py
-  add_custom_command(
-    OUTPUT ${GEN_BINARY_SCHEMA}
-    COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}"
-            -b --schema --bfbs-comments --bfbs-builtins
-            --bfbs-filenames ${SRC_FBS_DIR}
-            -I "${CMAKE_CURRENT_SOURCE_DIR}/tests/include_test"
-            -o "${SRC_FBS_DIR}"
-            "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
-    DEPENDS flatc
-    COMMENT "Run generation: '${GEN_BINARY_SCHEMA}'")
-  register_generated_output(${GEN_BINARY_SCHEMA})
 endfunction()
 
-function(compile_flatbuffers_schema_to_embedded_binary SRC_FBS OPT)
+function(compile_schema_for_samples SRC_FBS OPT)
-  if(FLATBUFFERS_BUILD_LEGACY)
+  compile_schema("${SRC_FBS}" "${OPT}" "_generated" GEN_FILE)
-    set(OPT ${OPT};--cpp-std c++0x)
+  target_sources(flatsample PRIVATE ${GEN_FILE})
-  else()
-    # --cpp-std is defined by flatc default settings.
-  endif()
-  message(STATUS "`${SRC_FBS}`: add generation of C++ embedded binary schema code with '${OPT}'")
-  get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH)
-  string(REGEX REPLACE "\\.fbs$" "_bfbs_generated.h" GEN_BFBS_HEADER ${SRC_FBS})
-  # For details about flags see generate_code.py
-  add_custom_command(
-          OUTPUT ${GEN_BFBS_HEADER}
-          COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}"
-          --cpp --gen-mutable --gen-object-api --reflect-names
-          --cpp-ptr-type flatbuffers::unique_ptr # Used to test with C++98 STLs
-          ${OPT}
-          --bfbs-comments --bfbs-builtins --bfbs-gen-embed
-          --bfbs-filenames ${SRC_FBS_DIR}
-          -I "${CMAKE_CURRENT_SOURCE_DIR}/tests/include_test"
-          -o "${SRC_FBS_DIR}"
-          "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
-          DEPENDS flatc
-          COMMENT "Run generation: '${GEN_BFBS_HEADER}'")
-  register_generated_output(${GEN_BFBS_HEADER})
 endfunction()
 
-# Look if we have python 3 installed so that we can run the generate code python
-# script after flatc is built.
-find_package(PythonInterp 3)
-
-if(PYTHONINTERP_FOUND AND
-  # Skip doing this if the MSVC version is below VS 12.
-  # https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
-  (NOT MSVC OR MSVC_VERSION GREATER 1800))
-  if(WIN32)
-    set(GENERATION_SCRIPT py scripts/generate_code.py) 
-   else()
-    set(GENERATION_SCRIPT scripts/generate_code.py)
-  endif()
-  if(FLATBUFFERS_BUILD_LEGACY)
-    # Need to set --cpp-std c++-0x options
-    set(GENERATION_SCRIPT ${GENERATION_SCRIPT} --cpp-0x)
-  endif()
-  if(FLATBUFFERS_SKIP_MONSTER_EXTRA)
-    set(GENERATION_SCRIPT ${GENERATION_SCRIPT} --skip-monster-extra)
-  endif()
-  add_custom_command(
-    TARGET flatc
-    POST_BUILD
-    COMMAND ${GENERATION_SCRIPT} --flatc "${FLATBUFFERS_FLATC_EXECUTABLE}"
-    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-    COMMENT "Running ${GENERATION_SCRIPT}..."
-    VERBATIM)
-else()
-  message("No Python3 interpreter found! Unable to generate files automatically.")
-endif()
-
 if(FLATBUFFERS_BUILD_TESTS)
-  file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/tests" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
-  file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/samples" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
-
-  # TODO Add (monster_test.fbs monsterdata_test.json)->monsterdata_test.mon
-  compile_flatbuffers_schema_to_cpp(tests/monster_test.fbs)
-  compile_flatbuffers_schema_to_binary(tests/monster_test.fbs)
-  compile_flatbuffers_schema_to_cpp_opt(tests/namespace_test/namespace_test1.fbs "--no-includes;--gen-compare;--gen-name-strings")
-  compile_flatbuffers_schema_to_cpp_opt(tests/namespace_test/namespace_test2.fbs "--no-includes;--gen-compare;--gen-name-strings")
-  compile_flatbuffers_schema_to_cpp_opt(tests/union_vector/union_vector.fbs "--no-includes;--gen-compare;--gen-name-strings")
-  compile_flatbuffers_schema_to_cpp(tests/optional_scalars.fbs)
-  compile_flatbuffers_schema_to_cpp_opt(tests/native_type_test.fbs "")
-  compile_flatbuffers_schema_to_cpp_opt(tests/arrays_test.fbs "--scoped-enums;--gen-compare")
-  compile_flatbuffers_schema_to_binary(tests/arrays_test.fbs)
-  compile_flatbuffers_schema_to_embedded_binary(tests/monster_test.fbs "--no-includes;--gen-compare")
-  if(NOT (MSVC AND (MSVC_VERSION LESS 1900)))
-    compile_flatbuffers_schema_to_cpp(tests/monster_extra.fbs) # Test floating-point NAN/INF.
-  endif()
-  include_directories(${CMAKE_CURRENT_BINARY_DIR}/tests)
   add_executable(flattests ${FlatBuffers_Tests_SRCS})
-  add_dependencies(flattests generated_code)
+  target_link_libraries(flattests PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
-  set_property(TARGET flattests
+  target_include_directories(flattests PUBLIC 
-    PROPERTY COMPILE_DEFINITIONS FLATBUFFERS_TRACK_VERIFIER_BUFFER_SIZE
+    # Ideally everything is fully qualified from the root directories
-    FLATBUFFERS_DEBUG_VERIFICATION_FAILURE=1)
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_BINARY_DIR}
+    # TODO(derekbailey): update includes to fully qualify src/ and tests/
+    src 
+    tests 
+    ${CMAKE_CURRENT_BINARY_DIR}/tests 
+  )
+
+  # Have tests load data from the source directory, not the build directory.
+  add_definitions(-DFLATBUFFERS_TEST_PATH_PREFIX=${CMAKE_CURRENT_SOURCE_DIR}/)
+
+  # The flattest target needs some generated files
+  SET(FLATC_OPT_COMP --cpp --gen-compare --gen-mutable --gen-object-api --reflect-names)
+  SET(FLATC_OPT_SCOPED_ENUMS ${FLATC_OPT_COMP};--scoped-enums)
+
+  compile_schema_for_test(tests/alignment_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test_fbsh(tests/default_vectors_strings_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/arrays_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
+  compile_schema_for_test(tests/native_inline_table_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/native_type_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/key_field/key_field_sample.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/64bit/test_64bit.fbs "${FLATC_OPT_COMP};--bfbs-gen-embed")
+  compile_schema_for_test(tests/64bit/evolution/v1.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/64bit/evolution/v2.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/union_underlying_type_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
+  compile_schema_for_test(tests/cross_namespace_pack_test.fbs "${FLATC_OPT_COMP}")
+
   if(FLATBUFFERS_CODE_SANITIZE)
     add_fsanitize_to_target(flattests ${FLATBUFFERS_CODE_SANITIZE})
   endif()
-
+  
-  compile_flatbuffers_schema_to_cpp(samples/monster.fbs)
-  compile_flatbuffers_schema_to_binary(samples/monster.fbs)
   include_directories(${CMAKE_CURRENT_BINARY_DIR}/samples)
+
   add_executable(flatsamplebinary ${FlatBuffers_Sample_Binary_SRCS})
-  add_dependencies(flatsamplebinary generated_code)
   add_executable(flatsampletext ${FlatBuffers_Sample_Text_SRCS})
-  add_dependencies(flatsampletext generated_code)
   add_executable(flatsamplebfbs ${FlatBuffers_Sample_BFBS_SRCS})
-  add_dependencies(flatsamplebfbs generated_code)
+
+  # Add a library so there is a single target that the generated samples can 
+  # link too.
+  if(MSVC OR ${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.20.0")
+    add_library(flatsample INTERFACE)
+  else()
+    add_library(flatsample STATIC)
+  endif()
+
+  # Since flatsample has no sources, we have to explicitly set the linker lang.
+  set_target_properties(flatsample PROPERTIES LINKER_LANGUAGE CXX)
+
+  target_link_libraries(flatsamplebinary PRIVATE $<BUILD_INTERFACE:ProjectConfig> flatsample)
+  target_link_libraries(flatsampletext PRIVATE $<BUILD_INTERFACE:ProjectConfig> flatsample)
+  target_link_libraries(flatsamplebfbs PRIVATE $<BUILD_INTERFACE:ProjectConfig> flatsample)
 
   if(FLATBUFFERS_BUILD_CPP17)
-    # Don't generate header for flattests_cpp17 target.
-    # This target uses "generated_cpp17/monster_test_generated.h"
-    # produced by direct call of generate_code.py script.
     add_executable(flattests_cpp17 ${FlatBuffers_Tests_CPP17_SRCS})
-    add_dependencies(flattests_cpp17 generated_code)
+    target_link_libraries(flattests_cpp17 PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
-    target_compile_features(flattests_cpp17 PRIVATE cxx_std_17)
+    target_include_directories(flattests_cpp17 PUBLIC src tests)
-    target_compile_definitions(flattests_cpp17 PRIVATE
+    target_compile_features(flattests_cpp17 PRIVATE cxx_std_17) # requires cmake 3.8
-      FLATBUFFERS_TRACK_VERIFIER_BUFFER_SIZE
+
-      FLATBUFFERS_DEBUG_VERIFICATION_FAILURE=1
-    )
     if(FLATBUFFERS_CODE_SANITIZE)
       add_fsanitize_to_target(flattests_cpp17 ${FLATBUFFERS_CODE_SANITIZE})
     endif()
@@ -602,9 +599,6 @@ if(FLATBUFFERS_BUILD_TESTS)
 endif()
 
 if(FLATBUFFERS_BUILD_GRPCTEST)
-  if(CMAKE_COMPILER_IS_GNUCXX)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-parameter -Wno-shadow")
-  endif()
   if(NOT GRPC_INSTALL_PATH)
     message(SEND_ERROR "GRPC_INSTALL_PATH variable is not defined. See grpc/README.md")
   endif()
@@ -619,15 +613,16 @@ if(FLATBUFFERS_BUILD_GRPCTEST)
   find_package(protobuf CONFIG REQUIRED)
   find_package(gRPC CONFIG REQUIRED)
   add_executable(grpctest ${FlatBuffers_GRPCTest_SRCS})
-  add_dependencies(grpctest generated_code)
+  target_link_libraries(grpctest
-  target_link_libraries(grpctest PRIVATE gRPC::grpc++_unsecure gRPC::grpc_unsecure gRPC::gpr pthread dl)
+    PRIVATE
-  if(FLATBUFFERS_CODE_SANITIZE AND NOT WIN32)
+      $<BUILD_INTERFACE:ProjectConfig>
-    # GRPC test has problems with alignment and will fail under ASAN/UBSAN.
+      gRPC::grpc++_unsecure
-    # add_fsanitize_to_target(grpctest ${FLATBUFFERS_CODE_SANITIZE})
+      gRPC::gpr
-  endif()
+      pthread
+      dl
+  )
 endif()
 
-
 if(FLATBUFFERS_INSTALL)
   include(GNUInstallDirs)
 
@@ -635,28 +630,24 @@ if(FLATBUFFERS_INSTALL)
 
   set(FB_CMAKE_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/flatbuffers")
 
-  configure_file(CMake/FlatbuffersConfigVersion.cmake.in FlatbuffersConfigVersion.cmake @ONLY)
+  configure_file(CMake/flatbuffers-config-version.cmake.in flatbuffers-config-version.cmake @ONLY)
   install(
-      FILES "CMake/FlatbuffersConfig.cmake" "${CMAKE_CURRENT_BINARY_DIR}/FlatbuffersConfigVersion.cmake"
+      FILES
+        "CMake/flatbuffers-config.cmake"
+        "CMake/BuildFlatBuffers.cmake"
+        "${CMAKE_CURRENT_BINARY_DIR}/flatbuffers-config-version.cmake"
       DESTINATION ${FB_CMAKE_DIR}
   )
 
   if(FLATBUFFERS_BUILD_FLATLIB)
-    if(CMAKE_VERSION VERSION_LESS 3.0)
+    install(
-      install(
+      TARGETS flatbuffers EXPORT FlatBuffersTargets
-        TARGETS flatbuffers EXPORT FlatbuffersTargets
+      ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-      )
+    )
-    else()
-      install(
-        TARGETS flatbuffers EXPORT FlatbuffersTargets
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-      )
-    endif()
 
-    install(EXPORT FlatbuffersTargets
+    install(EXPORT FlatBuffersTargets
-      FILE FlatbuffersTargets.cmake
+      FILE FlatBuffersTargets.cmake
       NAMESPACE flatbuffers::
       DESTINATION ${FB_CMAKE_DIR}
     )
@@ -677,26 +668,17 @@ if(FLATBUFFERS_INSTALL)
   endif()
 
   if(FLATBUFFERS_BUILD_SHAREDLIB)
-    if(CMAKE_VERSION VERSION_LESS 3.0)
+    install(
-      install(
+      TARGETS flatbuffers_shared EXPORT FlatBuffersSharedTargets
-        TARGETS flatbuffers_shared EXPORT FlatbuffersSharedTargets
+      ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-      )
+    )
-    else()
-      install(
-        TARGETS flatbuffers_shared EXPORT FlatbuffersSharedTargets
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-      )
-    endif()
 
-  install(
+    install(
-      EXPORT FlatbuffersSharedTargets
+      EXPORT FlatBuffersSharedTargets
-      FILE FlatbuffersSharedTargets.cmake
+      FILE FlatBuffersSharedTargets.cmake
       NAMESPACE flatbuffers::
       DESTINATION ${FB_CMAKE_DIR}
     )
@@ -723,16 +705,6 @@ if(FLATBUFFERS_BUILD_TESTS)
   endif()
 endif()
 
-# This target is sync-barrier.
-# Other generate-dependent targets can depend on 'generated_code' only.
-get_generated_output(fbs_generated)
-if(fbs_generated)
-  # message(STATUS "Add generated_code target with files:${fbs_generated}")
-  add_custom_target(generated_code
-    DEPENDS ${fbs_generated}
-    COMMENT "All generated files were updated.")
-endif()
-
 include(CMake/BuildFlatBuffers.cmake)
 
 if(UNIX)
@@ -748,6 +720,14 @@ if(UNIX)
 endif()
 
 # Include for running Google Benchmarks.
-if(FLATBUFFERS_BUILD_BENCHMARKS AND CMAKE_VERSION VERSION_GREATER 3.13)
+if(FLATBUFFERS_BUILD_BENCHMARKS)
   add_subdirectory(benchmarks)
-endif()
+endif()
+
+# Add FlatBuffers::FlatBuffers interface, needed for FetchContent_Declare
+add_library(FlatBuffers INTERFACE)
+add_library(FlatBuffers::FlatBuffers ALIAS FlatBuffers)
+target_include_directories(
+  FlatBuffers
+  INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+            $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/include>)

CONTRIBUTING.md

@@ -30,7 +30,7 @@ Some tips for good pull requests:
 * Write a descriptive commit message. What problem are you solving and what
   are the consequences? Where and what did you test? Some good tips:
   [here](http://robots.thoughtbot.com/5-useful-tips-for-a-better-commit-message)
-  and [here](https://www.kernel.org/doc/Documentation/SubmittingPatches).
+  and [here](https://www.kernel.org/doc/Documentation/process/submitting-patches.rst).
 * If your PR consists of multiple commits which are successive improvements /
   fixes to your first commit, consider squashing them into a single commit
   (`git rebase -i`) such that your PR is a single commit on top of the current
@@ -40,3 +40,26 @@ Some tips for good pull requests:
 # The small print
 Contributions made by corporations are covered by a different agreement than
 the one above, the Software Grant and Corporate Contributor License Agreement.
+
+# Code
+
+TL/DR
+
+See [how to build flatc](https://flatbuffers.dev/building/).
+
+When making changes, build `flatc` and then re-generate the goldens files to see the effect of your changes:
+
+```
+$ cp build/flatc .
+$ goldens/generate_goldens.py
+```
+
+Re-generate other code files to see the effects of the changes:
+
+```
+$ scripts/generate_code.py
+```
+
+Run tests with [TestAll.sh](tests/TestAll.sh) in [tests](tests), or directly any of the sub-scripts run by it.
+
+[Format the code](Formatters.md) before submitting a PR.

FlatBuffers.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FlatBuffers'
-  s.version          = '2.0.0'
+  s.version          = '25.12.19'
   s.summary          = 'FlatBuffers: Memory Efficient Serialization Library'
 
   s.description      = "FlatBuffers is a cross platform serialization library architected for
@@ -10,12 +10,15 @@ Pod::Spec.new do |s|
 
   s.homepage         = 'https://github.com/google/flatbuffers'
   s.license          = { :type => 'Apache2.0', :file => 'LICENSE' }
-  s.author           = { 'mustii' => 'mustii@mmk.one' }
+  s.author           = { 'mustii' => 'me@mustiikhalil.se' }
-  s.source           = { :git => 'https://github.com/mustiikhalil/flatbuffers.git', :tag => s.version.to_s, :submodules => true }
+  s.source           = { :git => 'https://github.com/google/flatbuffers.git', :tag => "v" + s.version.to_s, :submodules => true }
 
   s.ios.deployment_target = '11.0'
   s.osx.deployment_target = '10.14'
 
-  s.swift_version = '5.0'
+  s.swift_version = '5.10'
-  s.source_files = 'Sources/**/*'
+  s.source_files = 'swift/Sources/Flatbuffers/*.swift'
+  s.pod_target_xcconfig = {
+    'BUILD_LIBRARY_FOR_DISTRIBUTION' => 'YES'
+  }
 end

Formatters.md

@@ -19,4 +19,4 @@ Swift uses swiftformat as it's formatter. Take a look at [how to install here](h
 
 ## Typescript
 
-Typescript uses eslint as it's linter. Take a look at [how to install here](https://eslint.org/docs/user-guide/getting-started). Run the following command `eslint ts/** --ext .ts` in the root directory of the project
+Typescript uses eslint as it's linter. Take a look at [how to install here](https://eslint.org/docs/user-guide/getting-started). Run the following command `eslint ts/** --ext .ts` in the root directory of the project

MODULE.bazel

@@ -0,0 +1,75 @@
+module(
+    name = "flatbuffers",
+    version = "25.12.19",
+    compatibility_level = 1,
+    repo_name = "com_github_google_flatbuffers",
+)
+
+bazel_dep(
+    name = "aspect_bazel_lib",
+    version = "2.14.0",
+)
+bazel_dep(
+    name = "aspect_rules_esbuild",
+    version = "0.21.0",
+)
+bazel_dep(
+    name = "aspect_rules_js",
+    version = "2.3.8",
+)
+bazel_dep(
+    name = "aspect_rules_ts",
+    version = "3.6.0",
+)
+bazel_dep(
+    name = "grpc",
+    version = "1.76.0",
+    repo_name = "com_github_grpc_grpc",
+)
+bazel_dep(
+    name = "platforms",
+    version = "0.0.11",
+)
+bazel_dep(
+    name = "rules_cc",
+    version = "0.1.1",
+)
+bazel_dep(
+    name = "rules_go",
+    version = "0.50.1",
+    repo_name = "io_bazel_rules_go",
+)
+bazel_dep(
+    name = "rules_nodejs",
+    version = "6.3.3",
+)
+bazel_dep(
+    name = "rules_shell",
+    version = "0.3.0",
+)
+bazel_dep(
+    name = "rules_swift",
+    version = "3.1.2",
+    max_compatibility_level = 3,
+    repo_name = "build_bazel_rules_swift",
+)
+bazel_dep(
+    name = "bazel_skylib",
+    version = "1.7.1",
+)
+
+npm = use_extension("@aspect_rules_js//npm:extensions.bzl", "npm")
+npm.npm_translate_lock(
+    name = "flatbuffers_npm",
+    npmrc = "//:.npmrc",
+    pnpm_lock = "//ts:pnpm-lock.yaml",
+    verify_node_modules_ignored = "//:.bazelignore",
+)
+use_repo(npm, "flatbuffers_npm")
+
+node = use_extension("@rules_nodejs//nodejs:extensions.bzl", "node")
+use_repo(node, "nodejs_linux_amd64")
+
+rules_ts_ext = use_extension("@aspect_rules_ts//ts:extensions.bzl", "ext", dev_dependency = True)
+rules_ts_ext.deps()
+use_repo(rules_ts_ext, "npm_typescript")

Package.swift

@@ -0,0 +1,98 @@
+// swift-tools-version:6.0
+/*
+ * Copyright 2020 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import PackageDescription
+
+let package = Package(
+  name: "FlatBuffers",
+  platforms: [
+    .iOS(.v12),
+    .macOS(.v10_14),
+  ],
+  products: [
+    .library(
+      name: "FlatBuffers",
+      targets: ["FlatBuffers"]),
+    .library(
+      name: "FlexBuffers",
+      targets: ["FlexBuffers"]),
+  ],
+  dependencies: .dependencies,
+  targets: [
+    .target(
+      name: "FlatBuffers",
+      dependencies: ["Common"],
+      path: "swift/Sources/FlatBuffers",
+      swiftSettings: .settings),
+    .target(
+      name: "FlexBuffers",
+      dependencies: ["Common"],
+      path: "swift/Sources/FlexBuffers",
+      swiftSettings: .settings),
+    .target(
+      name: "Common",
+      path: "swift/Sources/Common",
+      swiftSettings: .settings),
+    .testTarget(
+      name: "FlatbuffersTests",
+      dependencies: .dependencies,
+      path: "tests/swift/Tests/Flatbuffers"),
+    .testTarget(
+      name: "FlexbuffersTests",
+      dependencies: ["FlexBuffers"],
+      path: "tests/swift/Tests/Flexbuffers"),
+  ],
+  swiftLanguageModes: [.v6])
+
+extension Array where Element == SwiftSetting {
+  static var settings: [SwiftSetting] {
+    [.enableUpcomingFeature("ExistentialAny")]
+  }
+}
+
+extension Array where Element == Package.Dependency {
+  static var dependencies: [Package.Dependency] {
+    #if os(Windows)
+    []
+    #else
+    // Test only Dependency
+    [
+      .package(url: "https://github.com/grpc/grpc-swift-2.git", from: "2.0.0"),
+      .package(
+        url: "https://github.com/grpc/grpc-swift-nio-transport.git",
+        from: "2.0.0"),
+    ]
+    #endif
+  }
+}
+
+extension Array where Element == PackageDescription.Target.Dependency {
+  static var dependencies: [PackageDescription.Target.Dependency] {
+    #if os(Windows)
+    ["FlatBuffers"]
+    #else
+    // Test only Dependency
+    [
+      .product(name: "GRPCCore", package: "grpc-swift-2"),
+      .product(
+        name: "GRPCNIOTransportHTTP2",
+        package: "grpc-swift-nio-transport"),
+      "FlatBuffers",
+    ]
+    #endif
+  }
+}

README.md

@@ -0,0 +1,116 @@
+![logo](https://flatbuffers.dev/assets/flatbuffers_logo.svg) FlatBuffers
+===========
+
+![Build status](https://github.com/google/flatbuffers/actions/workflows/build.yml/badge.svg?branch=master)
+[![BuildKite status](https://badge.buildkite.com/7979d93bc6279aa539971f271253c65d5e8fe2fe43c90bbb25.svg)](https://buildkite.com/bazel/flatbuffers)
+[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/flatbuffers.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:flatbuffers)
+[![Discord Chat](https://img.shields.io/discord/656202785926152206.svg)](https:///discord.gg/6qgKs3R)
+[![Twitter Follow](https://img.shields.io/twitter/follow/wvo.svg?style=social)](https://twitter.com/wvo)
+[![Twitter Follow](https://img.shields.io/twitter/follow/dbaileychess.svg?style=social)](https://twitter.com/dbaileychess)
+
+
+**FlatBuffers** is a cross platform serialization library architected for
+maximum memory efficiency. It allows you to directly access serialized data without parsing/unpacking it first, while still having great forwards/backwards compatibility.
+
+## Quick Start
+
+1. Build the compiler for flatbuffers (`flatc`)
+
+    Use `cmake` to create the build files for your platform and then perform the compilation (Linux example).
+
+    ```
+    cmake -G "Unix Makefiles"
+    make -j
+    ```
+
+2. Define your flatbuffer schema (`.fbs`)
+
+    Write the [schema](https://flatbuffers.dev/flatbuffers_guide_writing_schema.html) to define the data you want to serialize. See [monster.fbs](https://github.com/google/flatbuffers/blob/master/samples/monster.fbs) for an example.
+
+3. Generate code for your language(s)
+
+    Use the `flatc` compiler to take your schema and generate language-specific code:
+
+    ```
+    ./flatc --cpp --rust monster.fbs
+    ```
+
+    Which generates `monster_generated.h` and `monster_generated.rs` files.
+
+4. Serialize data
+
+    Use the generated code, as well as the `FlatBufferBuilder` to construct your serialized buffer. ([`C++` example](https://github.com/google/flatbuffers/blob/master/samples/sample_binary.cpp#L24-L56))
+
+5. Transmit/store/save Buffer
+
+    Use your serialized buffer however you want. Send it to someone, save it for later, etc...
+
+6. Read the data
+
+    Use the generated accessors to read the data from the serialized buffer.
+
+    It doesn't need to be the same language/schema version, FlatBuffers ensures the data is readable across languages and schema versions. See the [`Rust` example](https://github.com/google/flatbuffers/blob/master/samples/sample_binary.rs#L92-L106) reading the data written by `C++`.
+
+## Documentation
+
+**Go to our [landing page][] to browse our documentation.**
+
+## Supported operating systems
+- Windows
+- macOS
+- Linux
+- Android
+- And any others with a recent C++ compiler (C++ 11 and newer)
+
+## Supported programming languages
+
+Code generation and runtime libraries for many popular languages.
+
+1. C
+1. C++ - [snapcraft.io](https://snapcraft.io/flatbuffers)
+1. C# - [nuget.org](https://www.nuget.org/packages/Google.FlatBuffers)
+1. Dart - [pub.dev](https://pub.dev/packages/flat_buffers)
+1. Go - [go.dev](https://pkg.go.dev/github.com/google/flatbuffers)
+1. Java - [Maven](https://search.maven.org/artifact/com.google.flatbuffers/flatbuffers-java)
+1. JavaScript - [NPM](https://www.npmjs.com/package/flatbuffers)
+1. Kotlin
+1. Lobster
+1. Lua
+1. PHP
+1. Python - [PyPI](https://pypi.org/project/flatbuffers/)
+1. Rust - [crates.io](https://crates.io/crates/flatbuffers)
+1. Swift - [swiftpackageindex](https://swiftpackageindex.com/google/flatbuffers)
+1. TypeScript - [NPM](https://www.npmjs.com/package/flatbuffers)
+1. Nim
+
+## Versioning
+
+FlatBuffers does not follow traditional SemVer versioning (see [rationale](https://github.com/google/flatbuffers/wiki/Versioning)) but rather uses a format of the date of the release.
+
+## Contribution
+
+* [FlatBuffers Issues Tracker][] to submit an issue.
+* [stackoverflow.com][] with [`flatbuffers` tag][] for any questions regarding FlatBuffers.
+
+*To contribute to this project,* see [CONTRIBUTING][].
+
+## Community
+
+* [Discord Server](https:///discord.gg/6qgKs3R)
+
+## Security
+
+Please see our [Security Policy](SECURITY.md) for reporting vulnerabilities.
+
+## Licensing
+*Flatbuffers* is licensed under the Apache License, Version 2.0. See [LICENSE][] for the full license text.
+
+<br>
+
+   [CONTRIBUTING]: http://github.com/google/flatbuffers/blob/master/CONTRIBUTING.md
+   [`flatbuffers` tag]: https://stackoverflow.com/questions/tagged/flatbuffers
+   [FlatBuffers Google Group]: https://groups.google.com/forum/#!forum/flatbuffers
+   [FlatBuffers Issues Tracker]: http://github.com/google/flatbuffers/issues
+   [stackoverflow.com]: http://stackoverflow.com/search?q=flatbuffers
+   [landing page]: https://google.github.io/flatbuffers
+   [LICENSE]: https://github.com/google/flatbuffers/blob/master/LICENSE

WORKSPACE

@@ -1,46 +0,0 @@
-workspace(name = "com_github_google_flatbuffers")
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "io_bazel_rules_go",
-    sha256 = "d1ffd055969c8f8d431e2d439813e42326961d0942bdf734d2c95dc30c369566",
-    urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.24.5/rules_go-v0.24.5.tar.gz",
-        "https://github.com/bazelbuild/rules_go/releases/download/v0.24.5/rules_go-v0.24.5.tar.gz",
-    ],
-)
-
-load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_dependencies")
-
-go_rules_dependencies()
-
-go_register_toolchains()
-
-##### Protobuf
-_PROTOBUF_VERSION = "3.15.2"
-
-http_archive(
-    name = "com_google_protobuf",
-    strip_prefix = "protobuf-" + _PROTOBUF_VERSION,
-    urls = [
-        "https://github.com/protocolbuffers/protobuf/archive/v" + _PROTOBUF_VERSION + ".tar.gz",
-    ],
-)
-
-##### GRPC
-_GRPC_VERSION = "1.39.0"
-
-http_archive(
-    name = "com_github_grpc_grpc",
-    strip_prefix = "grpc-" + _GRPC_VERSION,
-    urls = ["https://github.com/grpc/grpc/archive/v" + _GRPC_VERSION + ".tar.gz"],
-)
-
-load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
-
-grpc_deps()
-
-load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")
-
-grpc_extra_deps()

android/.project

@@ -1,20 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright (c) 2014 Google, Inc.
-
-     This software is provided 'as-is', without any express or implied
-     warranty.  In no event will the authors be held liable for any damages
-     arising from the use of this software.
-     Permission is granted to anyone to use this software for any purpose,
-     including commercial applications, and to alter it and redistribute it
-     freely, subject to the following restrictions:
-     1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-     2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-     3. This notice may not be removed or altered from any source distribution.
- -->
 <projectDescription>
-    <name>FlatBufferTest</name>
+	<name>FlatBufferTest</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
+	</natures>
+	<filteredResources>
+		<filter>
+			<id>1672434305228</id>
+			<name></name>
+			<type>30</type>
+			<matcher>
+				<id>org.eclipse.core.resources.regexFilterMatcher</id>
+				<arguments>node_modules|\.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
 </projectDescription>

android/AndroidManifest.xml

@@ -1,28 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2013 Google, Inc.
-
-     This software is provided 'as-is', without any express or implied
-     warranty.  In no event will the authors be held liable for any damages
-     arising from the use of this software.
-     Permission is granted to anyone to use this software for any purpose,
-     including commercial applications, and to alter it and redistribute it
-     freely, subject to the following restrictions:
-     1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-     2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-     3. This notice may not be removed or altered from any source distribution.
- -->
 <!-- BEGIN_INCLUDE(manifest) -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="com.example.FlatBufferTest">
 
+    <uses-sdk android:minSdkVersion="14"/>
     <uses-feature android:glEsVersion="0x00020000"></uses-feature>
 
     <!-- This .apk has no Java code itself, so set hasCode to false. -->
-    <application android:label="@string/app_name"
+    <application android:name="android.support.multidex.MultiDexApplication"
+                 android:label="@string/app_name"
                  android:hasCode="false"
                  android:allowBackup="false">
         <!-- Our activity is the built-in NativeActivity framework class.

android/app/build.gradle

@@ -1,15 +1,13 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
 
 android {
-  compileSdkVersion 30
+  compileSdk 33
-  buildToolsVersion "30.0.2"
 
   defaultConfig {
     applicationId "com.flatbuffers.app"
-    minSdkVersion 16
+    minSdkVersion 26
-    targetSdkVersion 30
+    targetSdkVersion 33
     versionCode 1
     versionName "1.0"
 
@@ -18,6 +16,18 @@ android {
       targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    sourceSets {
+      main {
+        java {
+          srcDir '../../java/src/main/java/'
+        }
+      }
+    }
+
+    ndk {
+      abiFilters 'arm64-v8a', 'armeabi-v7a'
+    }
+    
     testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     externalNativeBuild {
       cmake {
@@ -33,7 +43,6 @@ android {
     }
   }
 
-  ndkVersion "21.3.6528147"
   externalNativeBuild {
     cmake {
       path "src/main/cpp/CMakeLists.txt"
@@ -52,16 +61,17 @@ android {
     fbsFiles.forEach{
       commandLineArgs.add(it.path)
     }
+
     commandLine commandLineArgs
 
     doFirst {
       delete "$outputCppDir/"
       mkdir "$outputCppDir/"
     }
+
     doLast {
-      if (execResult.getExitValue() != 0) {
+      if (executionResult.get().exitValue != 0) {
-        println(standardOutput.toString())
+        throw new GradleException("flatc failed with: ${executionResult.get().toString()}")
-        throw new GradleException("flatc command line failed")
       }
     }
   }
@@ -74,6 +84,10 @@ android {
 
     standardOutput = new ByteArrayOutputStream()
     errorOutput = new ByteArrayOutputStream()
+
+    setErrorOutput(errorOutput)
+    setStandardOutput(standardOutput)
+
     def commandLineArgs = ['flatc', '-o', outputKotlinDir, '--kotlin']
     fbsFiles.forEach{
       commandLineArgs.add(it.path)
@@ -85,50 +99,27 @@ android {
       mkdir "$outputKotlinDir/"
     }
     doLast {
-      if (execResult.getExitValue() != 0) {
+      if (executionResult.get().exitValue != 0) {
-        println(standardOutput.toString())
+        throw new GradleException("flatc failed with: ${executionResult.get().toString()}")
-        throw new GradleException("flatc command line failed")
       }
     }
   }
 
   afterEvaluate {
-    android.applicationVariants.all { variant ->
+    tasks.named("preBuild") {
-      variant.javaCompiler.dependsOn(generateFbsKotlin)
+      dependsOn(generateFbsKotlin)
-      variant.javaCompiler.dependsOn(generateFbsCpp)
+      dependsOn(generateFbsCpp)
-    }
-  }
-
-  flavorDimensions "stl-variant"
-  productFlavors {
-    gnustl {
-      dimension "stl-variant"
-      applicationIdSuffix ".gnustl"
-      versionNameSuffix "-gnustl"
-      externalNativeBuild {
-        ndkBuild {
-          arguments "APP_STL=gnustl_static"
-        }
-      }
-    }
-    libcpp {
-      dimension "stl-variant"
-      applicationIdSuffix ".libcpp"
-      versionNameSuffix "-libcpp"
-      externalNativeBuild {
-        ndkBuild {
-          arguments "APP_STL=c++_static"
-        }
-      }
     }
   }
+  namespace 'com.flatbuffers.app'
 }
 
 dependencies {
   implementation fileTree(dir: "libs", include: ["*.jar"])
   implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-  implementation 'androidx.core:core-ktx:1.3.2'
+  implementation 'androidx.appcompat:appcompat:1.6.1'
-  implementation 'androidx.appcompat:appcompat:1.2.0'
+
-  implementation 'com.google.flatbuffers:flatbuffers-java:2.0.0'
+  // If you using java runtime you can add its dependency as the example below
+  // implementation 'com.google.flatbuffers:flatbuffers-java:$latest_version'
 
 }

android/app/proguard-rules.pro

@@ -1,21 +0,0 @@
-# Add project specific ProGuard rules here.
-# You can control the set of applied configuration files using the
-# proguardFiles setting in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
-  package="com.flatbuffers.app">
 
   <application
     android:allowBackup="true"
@@ -9,7 +8,8 @@
     android:roundIcon="@mipmap/ic_launcher_round"
     android:supportsRtl="true"
     android:theme="@style/AppTheme">
-    <activity android:name=".MainActivity">
+    <activity android:name=".MainActivity"
+      android:exported="true">
       <intent-filter>
         <action android:name="android.intent.action.MAIN" />
 

android/app/src/main/cpp/CMakeLists.txt

@@ -48,7 +48,6 @@ find_library( # Sets the name of the path variable.
 target_link_libraries( # Specifies the target library.
                        native-lib
                        flatbuffers
-                       flatbuffers_tests
                        # Links the target library to the log library
                        # included in the NDK.
                        ${log-lib} )

android/app/src/main/cpp/animals.cpp

@@ -15,25 +15,27 @@
  */
 
 #include <jni.h>
-#include <string>
 #include <search.h>
+
+#include <string>
+
 #include "generated/animal_generated.h"
 
 using namespace com::fbs::app;
 using namespace flatbuffers;
 
-extern "C" JNIEXPORT jbyteArray JNICALL Java_com_flatbuffers_app_MainActivity_createAnimalFromJNI(
+extern "C" JNIEXPORT jbyteArray JNICALL
-        JNIEnv* env,
+Java_com_flatbuffers_app_MainActivity_createAnimalFromJNI(JNIEnv* env,
-        jobject /* this */) {
+                                                          jobject /* this */) {
-    // create a new animal flatbuffers
+  // create a new animal flatbuffers
-    auto fb = FlatBufferBuilder(1024);
+  auto fb = FlatBufferBuilder(1024);
-    auto tiger = CreateAnimalDirect(fb, "Tiger", "Roar", 300);
+  auto tiger = CreateAnimalDirect(fb, "Tiger", "Roar", 300);
-    fb.Finish(tiger);
+  fb.Finish(tiger);
 
-    // copies it to a Java byte array.
+  // copies it to a Java byte array.
-    auto buf = reinterpret_cast<jbyte*>(fb.GetBufferPointer());
+  auto buf = reinterpret_cast<jbyte*>(fb.GetBufferPointer());
-    int size = fb.GetSize();
+  int size = fb.GetSize();
-    auto ret = env->NewByteArray(size);
+  auto ret = env->NewByteArray(size);
-    env->SetByteArrayRegion (ret, 0, fb.GetSize(), buf);
+  env->SetByteArrayRegion(ret, 0, fb.GetSize(), buf);
   return ret;
 }

android/app/src/main/cpp/flatbuffers/CMakeLists.txt

@@ -18,7 +18,6 @@ set(FlatBuffers_Library_SRCS
         ${FLATBUFFERS_SRC}/include/flatbuffers/allocator.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/array.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/base.h
-        ${FLATBUFFERS_SRC}/include/flatbuffers/bfbs_generator.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/buffer.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/buffer_ref.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/default_allocator.h
@@ -26,6 +25,7 @@ set(FlatBuffers_Library_SRCS
         ${FLATBUFFERS_SRC}/include/flatbuffers/flatbuffer_builder.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/flatbuffers.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/flexbuffers.h
+        ${FLATBUFFERS_SRC}/include/flatbuffers/flex_flat_util.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/hash.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/idl.h
         ${FLATBUFFERS_SRC}/include/flatbuffers/minireflect.h
@@ -48,26 +48,9 @@ set(FlatBuffers_Library_SRCS
         ${FLATBUFFERS_SRC}/src/code_generators.cpp
         )
 
-set(FlatBuffers_Test_SRCS
-        ${FLATBUFFERS_SRC}/tests/test.cpp
-        ${FLATBUFFERS_SRC}/tests/test_assert.h
-        ${FLATBUFFERS_SRC}/tests/test_builder.h
-        ${FLATBUFFERS_SRC}/tests/test_assert.cpp
-        ${FLATBUFFERS_SRC}/tests/test_builder.cpp
-        ${FLATBUFFERS_SRC}/tests/native_type_test_impl.h
-        ${FLATBUFFERS_SRC}/tests/native_type_test_impl.cpp
-)
-
 add_library( # Sets the name of the library.
              flatbuffers
 
              ${FlatBuffers_Library_SRCS}
-             ${FlatBuffers_Test_SRCS}
              ${Generated_SRCS}
 )
-
-add_library( # Sets the name of the library.
-             flatbuffers_tests
-
-             ${FlatBuffers_Test_SRCS}
-)

android/app/src/main/cpp/generated/animal_generated.h

@@ -1,11 +1,17 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
-
 #ifndef FLATBUFFERS_GENERATED_ANIMAL_COM_FBS_APP_H_
 #define FLATBUFFERS_GENERATED_ANIMAL_COM_FBS_APP_H_
 
 #include "flatbuffers/flatbuffers.h"
 
+// Ensure the included flatbuffers.h is the same version as when this file was
+// generated, otherwise it may not be compatible.
+static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
+                  FLATBUFFERS_VERSION_MINOR == 12 &&
+                  FLATBUFFERS_VERSION_REVISION == 23,
+              "Non-compatible flatbuffers version included");
+
 namespace com {
 namespace fbs {
 namespace app {
@@ -13,62 +19,55 @@ namespace app {
 struct Animal;
 struct AnimalBuilder;
 
-struct Animal FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+struct Animal FLATBUFFERS_FINAL_CLASS : private ::flatbuffers::Table {
   typedef AnimalBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_SOUND = 6,
     VT_WEIGHT = 8
   };
-  const flatbuffers::String *name() const {
+  const ::flatbuffers::String* name() const {
-    return GetPointer<const flatbuffers::String *>(VT_NAME);
+    return GetPointer<const ::flatbuffers::String*>(VT_NAME);
   }
-  const flatbuffers::String *sound() const {
+  const ::flatbuffers::String* sound() const {
-    return GetPointer<const flatbuffers::String *>(VT_SOUND);
+    return GetPointer<const ::flatbuffers::String*>(VT_SOUND);
   }
-  uint16_t weight() const {
+  uint16_t weight() const { return GetField<uint16_t>(VT_WEIGHT, 0); }
-    return GetField<uint16_t>(VT_WEIGHT, 0);
+  bool Verify(::flatbuffers::Verifier& verifier) const {
-  }
+    return VerifyTableStart(verifier) && VerifyOffset(verifier, VT_NAME) &&
-  bool Verify(flatbuffers::Verifier &verifier) const {
+           verifier.VerifyString(name()) && VerifyOffset(verifier, VT_SOUND) &&
-    return VerifyTableStart(verifier) &&
-           VerifyOffset(verifier, VT_NAME) &&
-           verifier.VerifyString(name()) &&
-           VerifyOffset(verifier, VT_SOUND) &&
            verifier.VerifyString(sound()) &&
-           VerifyField<uint16_t>(verifier, VT_WEIGHT) &&
+           VerifyField<uint16_t>(verifier, VT_WEIGHT, 2) && verifier.EndTable();
-           verifier.EndTable();
   }
 };
 
 struct AnimalBuilder {
   typedef Animal Table;
-  flatbuffers::FlatBufferBuilder &fbb_;
+  ::flatbuffers::FlatBufferBuilder& fbb_;
-  flatbuffers::uoffset_t start_;
+  ::flatbuffers::uoffset_t start_;
-  void add_name(flatbuffers::Offset<flatbuffers::String> name) {
+  void add_name(::flatbuffers::Offset<::flatbuffers::String> name) {
     fbb_.AddOffset(Animal::VT_NAME, name);
   }
-  void add_sound(flatbuffers::Offset<flatbuffers::String> sound) {
+  void add_sound(::flatbuffers::Offset<::flatbuffers::String> sound) {
     fbb_.AddOffset(Animal::VT_SOUND, sound);
   }
   void add_weight(uint16_t weight) {
     fbb_.AddElement<uint16_t>(Animal::VT_WEIGHT, weight, 0);
   }
-  explicit AnimalBuilder(flatbuffers::FlatBufferBuilder &_fbb)
+  explicit AnimalBuilder(::flatbuffers::FlatBufferBuilder& _fbb) : fbb_(_fbb) {
-        : fbb_(_fbb) {
     start_ = fbb_.StartTable();
   }
-  AnimalBuilder &operator=(const AnimalBuilder &);
+  ::flatbuffers::Offset<Animal> Finish() {
-  flatbuffers::Offset<Animal> Finish() {
     const auto end = fbb_.EndTable(start_);
-    auto o = flatbuffers::Offset<Animal>(end);
+    auto o = ::flatbuffers::Offset<Animal>(end);
     return o;
   }
 };
 
-inline flatbuffers::Offset<Animal> CreateAnimal(
+inline ::flatbuffers::Offset<Animal> CreateAnimal(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    ::flatbuffers::FlatBufferBuilder& _fbb,
-    flatbuffers::Offset<flatbuffers::String> name = 0,
+    ::flatbuffers::Offset<::flatbuffers::String> name = 0,
-    flatbuffers::Offset<flatbuffers::String> sound = 0,
+    ::flatbuffers::Offset<::flatbuffers::String> sound = 0,
     uint16_t weight = 0) {
   AnimalBuilder builder_(_fbb);
   builder_.add_sound(sound);
@@ -77,47 +76,39 @@ inline flatbuffers::Offset<Animal> CreateAnimal(
   return builder_.Finish();
 }
 
-inline flatbuffers::Offset<Animal> CreateAnimalDirect(
+inline ::flatbuffers::Offset<Animal> CreateAnimalDirect(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    ::flatbuffers::FlatBufferBuilder& _fbb, const char* name = nullptr,
-    const char *name = nullptr,
+    const char* sound = nullptr, uint16_t weight = 0) {
-    const char *sound = nullptr,
-    uint16_t weight = 0) {
   auto name__ = name ? _fbb.CreateString(name) : 0;
   auto sound__ = sound ? _fbb.CreateString(sound) : 0;
-  return com::fbs::app::CreateAnimal(
+  return com::fbs::app::CreateAnimal(_fbb, name__, sound__, weight);
-      _fbb,
-      name__,
-      sound__,
-      weight);
 }
 
-inline const com::fbs::app::Animal *GetAnimal(const void *buf) {
+inline const com::fbs::app::Animal* GetAnimal(const void* buf) {
-  return flatbuffers::GetRoot<com::fbs::app::Animal>(buf);
+  return ::flatbuffers::GetRoot<com::fbs::app::Animal>(buf);
 }
 
-inline const com::fbs::app::Animal *GetSizePrefixedAnimal(const void *buf) {
+inline const com::fbs::app::Animal* GetSizePrefixedAnimal(const void* buf) {
-  return flatbuffers::GetSizePrefixedRoot<com::fbs::app::Animal>(buf);
+  return ::flatbuffers::GetSizePrefixedRoot<com::fbs::app::Animal>(buf);
 }
 
-inline bool VerifyAnimalBuffer(
+inline bool VerifyAnimalBuffer(::flatbuffers::Verifier& verifier) {
-    flatbuffers::Verifier &verifier) {
   return verifier.VerifyBuffer<com::fbs::app::Animal>(nullptr);
 }
 
-inline bool VerifySizePrefixedAnimalBuffer(
+inline bool VerifySizePrefixedAnimalBuffer(::flatbuffers::Verifier& verifier) {
-    flatbuffers::Verifier &verifier) {
   return verifier.VerifySizePrefixedBuffer<com::fbs::app::Animal>(nullptr);
 }
 
 inline void FinishAnimalBuffer(
-    flatbuffers::FlatBufferBuilder &fbb,
+    ::flatbuffers::FlatBufferBuilder& fbb,
-    flatbuffers::Offset<com::fbs::app::Animal> root) {
+    ::flatbuffers::Offset<com::fbs::app::Animal> root) {
   fbb.Finish(root);
 }
 
 inline void FinishSizePrefixedAnimalBuffer(
-    flatbuffers::FlatBufferBuilder &fbb,
+    ::flatbuffers::FlatBufferBuilder& fbb,
-    flatbuffers::Offset<com::fbs::app::Animal> root) {
+    ::flatbuffers::Offset<com::fbs::app::Animal> root) {
   fbb.FinishSizePrefixed(root);
 }
 

android/app/src/main/java/com/flatbuffers/app/MainActivity.kt

@@ -1,9 +1,9 @@
 package com.flatbuffers.app
 
 import android.annotation.SuppressLint
-import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
 import com.fbs.app.Animal
 import com.google.flatbuffers.FlatBufferBuilder
 import java.nio.ByteBuffer
@@ -27,14 +27,15 @@ class MainActivity : AppCompatActivity() {
   private external fun createAnimalFromJNI(): ByteArray
 
   // Create a "Cow" Animal flatbuffers from Kotlin
-  private fun createAnimalFromKotlin():Animal {
+  private fun createAnimalFromKotlin(): Animal {
     val fb = FlatBufferBuilder(100)
-    val cowOffset = Animal.createAnimal(
+    val cowOffset =
-      builder = fb,
+      Animal.createAnimal(
-      nameOffset = fb.createString("Cow"),
+        builder = fb,
-      soundOffset = fb.createString("Moo"),
+        nameOffset = fb.createString("Cow"),
-      weight = 720u
+        soundOffset = fb.createString("Moo"),
-    )
+        weight = 720u,
+      )
     fb.finish(cowOffset)
     return Animal.getRootAsAnimal(fb.dataBuffer())
   }

android/app/src/main/java/generated/com/fbs/app/Animal.kt

@@ -2,63 +2,101 @@
 
 package com.fbs.app
 
-import java.nio.*
+import com.google.flatbuffers.Constants
-import kotlin.math.sign
+import com.google.flatbuffers.FlatBufferBuilder
-import com.google.flatbuffers.*
+import com.google.flatbuffers.Table
+import java.nio.ByteBuffer
+import java.nio.ByteOrder
 
 @Suppress("unused")
-@ExperimentalUnsignedTypes
+@kotlin.ExperimentalUnsignedTypes
 class Animal : Table() {
 
-    fun __init(_i: Int, _bb: ByteBuffer)  {
+  fun __init(_i: Int, _bb: ByteBuffer) {
-        __reset(_i, _bb)
+    __reset(_i, _bb)
+  }
+
+  fun __assign(_i: Int, _bb: ByteBuffer): Animal {
+    __init(_i, _bb)
+    return this
+  }
+
+  val name: String?
+    get() {
+      val o = __offset(4)
+      return if (o != 0) {
+        __string(o + bb_pos)
+      } else {
+        null
+      }
     }
-    fun __assign(_i: Int, _bb: ByteBuffer) : Animal {
+
-        __init(_i, _bb)
+  val nameAsByteBuffer: ByteBuffer
-        return this
+    get() = __vector_as_bytebuffer(4, 1)
+
+  fun nameInByteBuffer(_bb: ByteBuffer): ByteBuffer = __vector_in_bytebuffer(_bb, 4, 1)
+
+  val sound: String?
+    get() {
+      val o = __offset(6)
+      return if (o != 0) {
+        __string(o + bb_pos)
+      } else {
+        null
+      }
     }
-    val name : String?
+
-        get() {
+  val soundAsByteBuffer: ByteBuffer
-            val o = __offset(4)
+    get() = __vector_as_bytebuffer(6, 1)
-            return if (o != 0) __string(o + bb_pos) else null
+
-        }
+  fun soundInByteBuffer(_bb: ByteBuffer): ByteBuffer = __vector_in_bytebuffer(_bb, 6, 1)
-    val nameAsByteBuffer : ByteBuffer get() = __vector_as_bytebuffer(4, 1)
+
-    fun nameInByteBuffer(_bb: ByteBuffer) : ByteBuffer = __vector_in_bytebuffer(_bb, 4, 1)
+  val weight: UShort
-    val sound : String?
+    get() {
-        get() {
+      val o = __offset(8)
-            val o = __offset(6)
+      return if (o != 0) bb.getShort(o + bb_pos).toUShort() else 0u
-            return if (o != 0) __string(o + bb_pos) else null
-        }
-    val soundAsByteBuffer : ByteBuffer get() = __vector_as_bytebuffer(6, 1)
-    fun soundInByteBuffer(_bb: ByteBuffer) : ByteBuffer = __vector_in_bytebuffer(_bb, 6, 1)
-    val weight : UShort
-        get() {
-            val o = __offset(8)
-            return if(o != 0) bb.getShort(o + bb_pos).toUShort() else 0u
-        }
-    companion object {
-        fun validateVersion() = Constants.FLATBUFFERS_2_0_0()
-        fun getRootAsAnimal(_bb: ByteBuffer): Animal = getRootAsAnimal(_bb, Animal())
-        fun getRootAsAnimal(_bb: ByteBuffer, obj: Animal): Animal {
-            _bb.order(ByteOrder.LITTLE_ENDIAN)
-            return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb))
-        }
-        fun createAnimal(builder: FlatBufferBuilder, nameOffset: Int, soundOffset: Int, weight: UShort) : Int {
-            builder.startTable(3)
-            addSound(builder, soundOffset)
-            addName(builder, nameOffset)
-            addWeight(builder, weight)
-            return endAnimal(builder)
-        }
-        fun startAnimal(builder: FlatBufferBuilder) = builder.startTable(3)
-        fun addName(builder: FlatBufferBuilder, name: Int) = builder.addOffset(0, name, 0)
-        fun addSound(builder: FlatBufferBuilder, sound: Int) = builder.addOffset(1, sound, 0)
-        fun addWeight(builder: FlatBufferBuilder, weight: UShort) = builder.addShort(2, weight.toShort(), 0)
-        fun endAnimal(builder: FlatBufferBuilder) : Int {
-            val o = builder.endTable()
-            return o
-        }
-        fun finishAnimalBuffer(builder: FlatBufferBuilder, offset: Int) = builder.finish(offset)
-        fun finishSizePrefixedAnimalBuffer(builder: FlatBufferBuilder, offset: Int) = builder.finishSizePrefixed(offset)
     }
+
+  companion object {
+    fun validateVersion() = Constants.FLATBUFFERS_25_12_19()
+
+    fun getRootAsAnimal(_bb: ByteBuffer): Animal = getRootAsAnimal(_bb, Animal())
+
+    fun getRootAsAnimal(_bb: ByteBuffer, obj: Animal): Animal {
+      _bb.order(ByteOrder.LITTLE_ENDIAN)
+      return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb))
+    }
+
+    fun createAnimal(
+      builder: FlatBufferBuilder,
+      nameOffset: Int,
+      soundOffset: Int,
+      weight: UShort,
+    ): Int {
+      builder.startTable(3)
+      addSound(builder, soundOffset)
+      addName(builder, nameOffset)
+      addWeight(builder, weight)
+      return endAnimal(builder)
+    }
+
+    fun startAnimal(builder: FlatBufferBuilder) = builder.startTable(3)
+
+    fun addName(builder: FlatBufferBuilder, name: Int) = builder.addOffset(0, name, 0)
+
+    fun addSound(builder: FlatBufferBuilder, sound: Int) = builder.addOffset(1, sound, 0)
+
+    fun addWeight(builder: FlatBufferBuilder, weight: UShort) =
+      builder.addShort(2, weight.toShort(), 0)
+
+    fun endAnimal(builder: FlatBufferBuilder): Int {
+      val o = builder.endTable()
+      return o
+    }
+
+    fun finishAnimalBuffer(builder: FlatBufferBuilder, offset: Int) = builder.finish(offset)
+
+    fun finishSizePrefixedAnimalBuffer(builder: FlatBufferBuilder, offset: Int) =
+      builder.finishSizePrefixed(offset)
+  }
 }

android/build.gradle

@@ -1,12 +1,12 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-  ext.kotlin_version = "1.4.10"
+  ext.kotlin_version = "1.7.21"
   repositories {
     google()
-    jcenter()
+    mavenCentral()
   }
   dependencies {
-    classpath 'com.android.tools.build:gradle:4.1.0'
+    classpath 'com.android.tools.build:gradle:7.4.1'
     classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
     // NOTE: Do not place your application dependencies here; they belong
@@ -17,7 +17,7 @@ buildscript {
 allprojects {
   repositories {
     google()
-    jcenter()
+    mavenCentral()
   }
 }
 

android/gradle.properties

@@ -19,3 +19,5 @@ android.useAndroidX=true
 android.enableJetifier=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
+# Use parallel builds
+org.gradle.parallel=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Thu Oct 29 19:47:23 CET 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip

appveyor.yml

@@ -1,76 +0,0 @@
-branches:
-  only:
-    - master
-
-environment:
-  nodejs_version: "14"
-
-  global:
-    # Workaround for https://github.com/conda/conda-build/issues/636
-    PYTHONIOENCODING: UTF-8
-    CONDA_INSTALL_LOCN: "C:\\Miniconda35-x64"
-    CMAKE_OPTIONS: ""
-    CPP_TEST_OPTIONS: ""
-    CHECK_GEN_CODE: 1
-
-  matrix:
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      CMAKE_VS_VERSION: "14 2015"
-
-platform:
-  - x86
-  - x64
-
-configuration:
-  - Debug
-  - Release
-
-before_build:
-  - cmake . -G"Visual Studio %CMAKE_VS_VERSION%" -DFLATBUFFERS_CODE_SANITIZE=1 %CMAKE_OPTIONS%
-  # This cuts down on a lot of noise generated by xamarin warnings.
-  - if exist "C:\Program Files (x86)\MSBuild\14.0\Microsoft.Common.targets\ImportAfter\Xamarin.Common.targets" del "C:\Program Files (x86)\MSBuild\14.0\Microsoft.Common.targets\ImportAfter\Xamarin.Common.targets"
-
-build:
-  project: ALL_BUILD.vcxproj
-  verbosity: minimal
-
-after_build:
-  - python conan/appveyor/install.py
-  - python conan/appveyor/build.py
-
-install:
-  - set PATH=%CONDA_INSTALL_LOCN%;%CONDA_INSTALL_LOCN%\scripts;%PATH%;
-  - ps: Install-Product node $env:nodejs_version
-
-test_script:
-  - if [%CHECK_GEN_CODE%]==[1] (call py scripts/check_generate_code.py "%CPP_TEST_OPTIONS%")
-  - "cd tests"
-  - 7z a GeneratedMyGameCode.zip MyGame\
-  - rem "---------------- C++ -----------------"
-  - "cd .."
-  - "%CONFIGURATION%\\flattests.exe"
-  - rem "---------------- JS -----------------"
-  - "node --version"
-  - "npm install"
-  - "npm run compile"
-  - "cd tests"
-  - "TypeScriptTest.bat"
-  - rem "---------------- C# -----------------"
-  # Have to compile this here rather than in "build" above because AppVeyor only
-  # supports building one project??
-  - "cd FlatBuffers.Test"
-  - "dotnet new sln"
-  - "dotnet sln add FlatBuffers.Test.csproj"
-  - "nuget restore"
-  - "mkdir .tmp"
-  - "msbuild.exe /property:Configuration=Release;OutputPath=.tmp /verbosity:minimal FlatBuffers.Test.csproj"
-  - ".tmp\\FlatBuffers.Test.exe"
-  # Run tests with UNSAFE_BYTEBUFFER
-  - "msbuild.exe /property:Configuration=Release;UnsafeByteBuffer=true;OutputPath=.tmp /verbosity:minimal FlatBuffers.Test.csproj"
-  - ".tmp\\FlatBuffers.Test.exe"
-
-artifacts:
-  - path: $(CONFIGURATION)\flatc.exe
-    name: flatc.exe
-  - path: tests\GeneratedMyGameCode.zip
-    name: GeneratedMyGameCode.zip

benchmarks/CMakeLists.txt

@@ -1,8 +1,9 @@
 # Setup for running Google Benchmarks (https://github.com/google/benchmark) on
-# flatbuffers. This requires both that benchmark library and its depenency gtest
+# flatbuffers. This requires both that benchmark library and its dependency gtest
 # to build. Instead of including them here or doing a submodule, this uses
 # FetchContent (https://cmake.org/cmake/help/latest/module/FetchContent.html) to
 # grab the dependencies at config time. This requires CMake 3.14 or higher.
+
 cmake_minimum_required(VERSION 3.14)
 include(FetchContent)
 
@@ -16,7 +17,7 @@ FetchContent_Declare(
 FetchContent_Declare(
     googlebenchmark
     GIT_REPOSITORY https://github.com/google/benchmark.git
-    GIT_TAG        f91b6b42b1b9854772a90ae9501464a161707d1e # v1.6.0
+    GIT_TAG        0d98dba29d66e93259db7daa53a9327df767a415 # v1.6.1
 )
 
 # For Windows: Prevent overriding the parent project's compiler/linker 
@@ -27,7 +28,7 @@ FetchContent_MakeAvailable(
     googlebenchmark
 )
 
-set(CPP_BENCH_DIR cpp)
+set(CPP_BENCH_DIR ${CMAKE_CURRENT_SOURCE_DIR}/cpp)
 set(CPP_FB_BENCH_DIR ${CPP_BENCH_DIR}/flatbuffers)
 set(CPP_RAW_BENCH_DIR ${CPP_BENCH_DIR}/raw)
 set(CPP_BENCH_FBS ${CPP_FB_BENCH_DIR}/bench.fbs)
@@ -62,8 +63,14 @@ add_custom_command(
 add_executable(flatbenchmark ${FlatBenchmark_SRCS})
 
 # Benchmark requires C++11 
-target_compile_features(flatbenchmark PUBLIC
+target_compile_features(flatbenchmark PRIVATE
-    cxx_std_11
+    cxx_std_11 # requires cmake 3.8
+)
+
+target_compile_options(flatbenchmark
+    PRIVATE
+        -fno-aligned-new
+        -Wno-deprecated-declarations
 )
 
 # Set the output directory to the root binary directory
@@ -75,7 +82,7 @@ set_target_properties(flatbenchmark
 # The includes of the benchmark files are fully qualified from flatbuffers root.
 target_include_directories(flatbenchmark PUBLIC ${CMAKE_SOURCE_DIR})
 
-target_link_libraries(flatbenchmark 
+target_link_libraries(flatbenchmark PRIVATE
     benchmark::benchmark_main # _main to use their entry point 
     gtest # Link to gtest so we can also assert in the benchmarks
 )

benchmarks/cpp/bench.h

@@ -8,12 +8,12 @@ struct Bench {
 
   inline void Add(int64_t value) { sum += value; }
 
-  virtual uint8_t *Encode(void *buf, int64_t &len) = 0;
+  virtual uint8_t* Encode(void* buf, int64_t& len) = 0;
-  virtual void *Decode(void *buf, int64_t len) = 0;
+  virtual void* Decode(void* buf, int64_t len) = 0;
-  virtual int64_t Use(void *decoded) = 0;
+  virtual int64_t Use(void* decoded) = 0;
-  virtual void Dealloc(void *decoded) = 0;
+  virtual void Dealloc(void* decoded) = 0;
 
   int64_t sum = 0;
 };
 
-#endif // BENCHMARKS_CPP_BENCH_H_
+#endif  // BENCHMARKS_CPP_BENCH_H_

benchmarks/cpp/benchmark_main.cpp

@@ -5,8 +5,8 @@
 #include "benchmarks/cpp/flatbuffers/fb_bench.h"
 #include "benchmarks/cpp/raw/raw_bench.h"
 
-static inline void Encode(benchmark::State &state,
+static inline void Encode(benchmark::State& state,
-                          std::unique_ptr<Bench> &bench, uint8_t *buffer) {
+                          std::unique_ptr<Bench>& bench, uint8_t* buffer) {
   int64_t length;
   for (auto _ : state) {
     bench->Encode(buffer, length);
@@ -14,31 +14,33 @@ static inline void Encode(benchmark::State &state,
   }
 }
 
-static inline void Decode(benchmark::State &state,
+static inline void Decode(benchmark::State& state,
-                          std::unique_ptr<Bench> &bench, uint8_t *buffer) {
+                          std::unique_ptr<Bench>& bench, uint8_t* buffer) {
   int64_t length;
-  uint8_t *encoded = bench->Encode(buffer, length);
+  uint8_t* encoded = bench->Encode(buffer, length);
 
   for (auto _ : state) {
-    void *decoded = bench->Decode(encoded, length);
+    void* decoded = bench->Decode(encoded, length);
     benchmark::DoNotOptimize(decoded);
   }
 }
 
-static inline void Use(benchmark::State &state, std::unique_ptr<Bench> &bench,
+static inline void Use(benchmark::State& state, std::unique_ptr<Bench>& bench,
-                       uint8_t *buffer, int64_t check_sum) {
+                       uint8_t* buffer, int64_t check_sum) {
   int64_t length;
-  uint8_t *encoded = bench->Encode(buffer, length);
+  uint8_t* encoded = bench->Encode(buffer, length);
-  void *decoded = bench->Decode(encoded, length);
+  void* decoded = bench->Decode(encoded, length);
 
   int64_t sum = 0;
 
-  for (auto _ : state) { sum = bench->Use(decoded); }
+  for (auto _ : state) {
+    sum = bench->Use(decoded);
+  }
 
   EXPECT_EQ(sum, check_sum);
 }
 
-static void BM_Flatbuffers_Encode(benchmark::State &state) {
+static void BM_Flatbuffers_Encode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -48,7 +50,7 @@ static void BM_Flatbuffers_Encode(benchmark::State &state) {
 }
 BENCHMARK(BM_Flatbuffers_Encode);
 
-static void BM_Flatbuffers_Decode(benchmark::State &state) {
+static void BM_Flatbuffers_Decode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -58,7 +60,7 @@ static void BM_Flatbuffers_Decode(benchmark::State &state) {
 }
 BENCHMARK(BM_Flatbuffers_Decode);
 
-static void BM_Flatbuffers_Use(benchmark::State &state) {
+static void BM_Flatbuffers_Use(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -68,7 +70,7 @@ static void BM_Flatbuffers_Use(benchmark::State &state) {
 }
 BENCHMARK(BM_Flatbuffers_Use);
 
-static void BM_Raw_Encode(benchmark::State &state) {
+static void BM_Raw_Encode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -77,7 +79,7 @@ static void BM_Raw_Encode(benchmark::State &state) {
 }
 BENCHMARK(BM_Raw_Encode);
 
-static void BM_Raw_Decode(benchmark::State &state) {
+static void BM_Raw_Decode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -86,7 +88,7 @@ static void BM_Raw_Decode(benchmark::State &state) {
 }
 BENCHMARK(BM_Raw_Decode);
 
-static void BM_Raw_Use(benchmark::State &state) {
+static void BM_Raw_Use(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 

benchmarks/cpp/flatbuffers/bench_generated.h

@@ -1,11 +1,17 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
-
 #ifndef FLATBUFFERS_GENERATED_BENCH_BENCHMARKS_FLATBUFFERS_H_
 #define FLATBUFFERS_GENERATED_BENCH_BENCHMARKS_FLATBUFFERS_H_
 
 #include "flatbuffers/flatbuffers.h"
 
+// Ensure the included flatbuffers.h is the same version as when this file was
+// generated, otherwise it may not be compatible.
+static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
+                  FLATBUFFERS_VERSION_MINOR == 12 &&
+                  FLATBUFFERS_VERSION_REVISION == 23,
+              "Non-compatible flatbuffers version included");
+
 namespace benchmarks_flatbuffers {
 
 struct Foo;
@@ -27,25 +33,16 @@ enum Enum : int16_t {
 };
 
 inline const Enum (&EnumValuesEnum())[3] {
-  static const Enum values[] = {
+  static const Enum values[] = {Enum_Apples, Enum_Pears, Enum_Bananas};
-    Enum_Apples,
-    Enum_Pears,
-    Enum_Bananas
-  };
   return values;
 }
 
-inline const char * const *EnumNamesEnum() {
+inline const char* const* EnumNamesEnum() {
-  static const char * const names[4] = {
+  static const char* const names[4] = {"Apples", "Pears", "Bananas", nullptr};
-    "Apples",
-    "Pears",
-    "Bananas",
-    nullptr
-  };
   return names;
 }
 
-inline const char *EnumNameEnum(Enum e) {
+inline const char* EnumNameEnum(Enum e) {
   if (flatbuffers::IsOutRange(e, Enum_Apples, Enum_Bananas)) return "";
   const size_t index = static_cast<size_t>(e);
   return EnumNamesEnum()[index];
@@ -60,12 +57,7 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Foo FLATBUFFERS_FINAL_CLASS {
   uint32_t length_;
 
  public:
-  Foo()
+  Foo() : id_(0), count_(0), prefix_(0), padding0__(0), length_(0) {
-      : id_(0),
-        count_(0),
-        prefix_(0),
-        padding0__(0),
-        length_(0) {
     (void)padding0__;
   }
   Foo(uint64_t _id, int16_t _count, int8_t _prefix, uint32_t _length)
@@ -76,18 +68,10 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Foo FLATBUFFERS_FINAL_CLASS {
         length_(flatbuffers::EndianScalar(_length)) {
     (void)padding0__;
   }
-  uint64_t id() const {
+  uint64_t id() const { return flatbuffers::EndianScalar(id_); }
-    return flatbuffers::EndianScalar(id_);
+  int16_t count() const { return flatbuffers::EndianScalar(count_); }
-  }
+  int8_t prefix() const { return flatbuffers::EndianScalar(prefix_); }
-  int16_t count() const {
+  uint32_t length() const { return flatbuffers::EndianScalar(length_); }
-    return flatbuffers::EndianScalar(count_);
-  }
-  int8_t prefix() const {
-    return flatbuffers::EndianScalar(prefix_);
-  }
-  uint32_t length() const {
-    return flatbuffers::EndianScalar(length_);
-  }
 };
 FLATBUFFERS_STRUCT_END(Foo, 16);
 
@@ -97,20 +81,17 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Bar FLATBUFFERS_FINAL_CLASS {
   int32_t time_;
   float ratio_;
   uint16_t size_;
-  int16_t padding0__;  int32_t padding1__;
+  int16_t padding0__;
+  int32_t padding1__;
 
  public:
   Bar()
-      : parent_(),
+      : parent_(), time_(0), ratio_(0), size_(0), padding0__(0), padding1__(0) {
-        time_(0),
-        ratio_(0),
-        size_(0),
-        padding0__(0),
-        padding1__(0) {
     (void)padding0__;
     (void)padding1__;
   }
-  Bar(const benchmarks_flatbuffers::Foo &_parent, int32_t _time, float _ratio, uint16_t _size)
+  Bar(const benchmarks_flatbuffers::Foo& _parent, int32_t _time, float _ratio,
+      uint16_t _size)
       : parent_(_parent),
         time_(flatbuffers::EndianScalar(_time)),
         ratio_(flatbuffers::EndianScalar(_ratio)),
@@ -120,18 +101,10 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Bar FLATBUFFERS_FINAL_CLASS {
     (void)padding0__;
     (void)padding1__;
   }
-  const benchmarks_flatbuffers::Foo &parent() const {
+  const benchmarks_flatbuffers::Foo& parent() const { return parent_; }
-    return parent_;
+  int32_t time() const { return flatbuffers::EndianScalar(time_); }
-  }
+  float ratio() const { return flatbuffers::EndianScalar(ratio_); }
-  int32_t time() const {
+  uint16_t size() const { return flatbuffers::EndianScalar(size_); }
-    return flatbuffers::EndianScalar(time_);
-  }
-  float ratio() const {
-    return flatbuffers::EndianScalar(ratio_);
-  }
-  uint16_t size() const {
-    return flatbuffers::EndianScalar(size_);
-  }
 };
 FLATBUFFERS_STRUCT_END(Bar, 32);
 
@@ -143,34 +116,28 @@ struct FooBar FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
     VT_RATING = 8,
     VT_POSTFIX = 10
   };
-  const benchmarks_flatbuffers::Bar *sibling() const {
+  const benchmarks_flatbuffers::Bar* sibling() const {
-    return GetStruct<const benchmarks_flatbuffers::Bar *>(VT_SIBLING);
+    return GetStruct<const benchmarks_flatbuffers::Bar*>(VT_SIBLING);
   }
-  const flatbuffers::String *name() const {
+  const flatbuffers::String* name() const {
-    return GetPointer<const flatbuffers::String *>(VT_NAME);
+    return GetPointer<const flatbuffers::String*>(VT_NAME);
   }
-  double rating() const {
+  double rating() const { return GetField<double>(VT_RATING, 0.0); }
-    return GetField<double>(VT_RATING, 0.0);
+  uint8_t postfix() const { return GetField<uint8_t>(VT_POSTFIX, 0); }
-  }
+  bool Verify(flatbuffers::Verifier& verifier) const {
-  uint8_t postfix() const {
-    return GetField<uint8_t>(VT_POSTFIX, 0);
-  }
-  bool Verify(flatbuffers::Verifier &verifier) const {
     return VerifyTableStart(verifier) &&
-           VerifyField<benchmarks_flatbuffers::Bar>(verifier, VT_SIBLING) &&
+           VerifyField<benchmarks_flatbuffers::Bar>(verifier, VT_SIBLING, 8) &&
-           VerifyOffset(verifier, VT_NAME) &&
+           VerifyOffset(verifier, VT_NAME) && verifier.VerifyString(name()) &&
-           verifier.VerifyString(name()) &&
+           VerifyField<double>(verifier, VT_RATING, 8) &&
-           VerifyField<double>(verifier, VT_RATING) &&
+           VerifyField<uint8_t>(verifier, VT_POSTFIX, 1) && verifier.EndTable();
-           VerifyField<uint8_t>(verifier, VT_POSTFIX) &&
-           verifier.EndTable();
   }
 };
 
 struct FooBarBuilder {
   typedef FooBar Table;
-  flatbuffers::FlatBufferBuilder &fbb_;
+  flatbuffers::FlatBufferBuilder& fbb_;
   flatbuffers::uoffset_t start_;
-  void add_sibling(const benchmarks_flatbuffers::Bar *sibling) {
+  void add_sibling(const benchmarks_flatbuffers::Bar* sibling) {
     fbb_.AddStruct(FooBar::VT_SIBLING, sibling);
   }
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -182,8 +149,7 @@ struct FooBarBuilder {
   void add_postfix(uint8_t postfix) {
     fbb_.AddElement<uint8_t>(FooBar::VT_POSTFIX, postfix, 0);
   }
-  explicit FooBarBuilder(flatbuffers::FlatBufferBuilder &_fbb)
+  explicit FooBarBuilder(flatbuffers::FlatBufferBuilder& _fbb) : fbb_(_fbb) {
-        : fbb_(_fbb) {
     start_ = fbb_.StartTable();
   }
   flatbuffers::Offset<FooBar> Finish() {
@@ -194,10 +160,9 @@ struct FooBarBuilder {
 };
 
 inline flatbuffers::Offset<FooBar> CreateFooBar(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    const benchmarks_flatbuffers::Bar *sibling = nullptr,
+    const benchmarks_flatbuffers::Bar* sibling = nullptr,
-    flatbuffers::Offset<flatbuffers::String> name = 0,
+    flatbuffers::Offset<flatbuffers::String> name = 0, double rating = 0.0,
-    double rating = 0.0,
     uint8_t postfix = 0) {
   FooBarBuilder builder_(_fbb);
   builder_.add_rating(rating);
@@ -208,18 +173,12 @@ inline flatbuffers::Offset<FooBar> CreateFooBar(
 }
 
 inline flatbuffers::Offset<FooBar> CreateFooBarDirect(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    const benchmarks_flatbuffers::Bar *sibling = nullptr,
+    const benchmarks_flatbuffers::Bar* sibling = nullptr,
-    const char *name = nullptr,
+    const char* name = nullptr, double rating = 0.0, uint8_t postfix = 0) {
-    double rating = 0.0,
-    uint8_t postfix = 0) {
   auto name__ = name ? _fbb.CreateString(name) : 0;
-  return benchmarks_flatbuffers::CreateFooBar(
+  return benchmarks_flatbuffers::CreateFooBar(_fbb, sibling, name__, rating,
-      _fbb,
+                                              postfix);
-      sibling,
-      name__,
-      rating,
-      postfix);
 }
 
 struct FooBarContainer FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
@@ -230,49 +189,53 @@ struct FooBarContainer FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
     VT_FRUIT = 8,
     VT_LOCATION = 10
   };
-  const flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>> *list() const {
+  const flatbuffers::Vector<
-    return GetPointer<const flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>> *>(VT_LIST);
+      flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>*
-  }
+  list() const {
-  bool initialized() const {
+    return GetPointer<const flatbuffers::Vector<
-    return GetField<uint8_t>(VT_INITIALIZED, 0) != 0;
+        flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>*>(VT_LIST);
   }
+  bool initialized() const { return GetField<uint8_t>(VT_INITIALIZED, 0) != 0; }
   benchmarks_flatbuffers::Enum fruit() const {
-    return static_cast<benchmarks_flatbuffers::Enum>(GetField<int16_t>(VT_FRUIT, 0));
+    return static_cast<benchmarks_flatbuffers::Enum>(
+        GetField<int16_t>(VT_FRUIT, 0));
   }
-  const flatbuffers::String *location() const {
+  const flatbuffers::String* location() const {
-    return GetPointer<const flatbuffers::String *>(VT_LOCATION);
+    return GetPointer<const flatbuffers::String*>(VT_LOCATION);
   }
-  bool Verify(flatbuffers::Verifier &verifier) const {
+  bool Verify(flatbuffers::Verifier& verifier) const {
-    return VerifyTableStart(verifier) &&
+    return VerifyTableStart(verifier) && VerifyOffset(verifier, VT_LIST) &&
-           VerifyOffset(verifier, VT_LIST) &&
            verifier.VerifyVector(list()) &&
            verifier.VerifyVectorOfTables(list()) &&
-           VerifyField<uint8_t>(verifier, VT_INITIALIZED) &&
+           VerifyField<uint8_t>(verifier, VT_INITIALIZED, 1) &&
-           VerifyField<int16_t>(verifier, VT_FRUIT) &&
+           VerifyField<int16_t>(verifier, VT_FRUIT, 2) &&
            VerifyOffset(verifier, VT_LOCATION) &&
-           verifier.VerifyString(location()) &&
+           verifier.VerifyString(location()) && verifier.EndTable();
-           verifier.EndTable();
   }
 };
 
 struct FooBarContainerBuilder {
   typedef FooBarContainer Table;
-  flatbuffers::FlatBufferBuilder &fbb_;
+  flatbuffers::FlatBufferBuilder& fbb_;
   flatbuffers::uoffset_t start_;
-  void add_list(flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>> list) {
+  void add_list(flatbuffers::Offset<flatbuffers::Vector<
+                    flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>>
+                    list) {
     fbb_.AddOffset(FooBarContainer::VT_LIST, list);
   }
   void add_initialized(bool initialized) {
-    fbb_.AddElement<uint8_t>(FooBarContainer::VT_INITIALIZED, static_cast<uint8_t>(initialized), 0);
+    fbb_.AddElement<uint8_t>(FooBarContainer::VT_INITIALIZED,
+                             static_cast<uint8_t>(initialized), 0);
   }
   void add_fruit(benchmarks_flatbuffers::Enum fruit) {
-    fbb_.AddElement<int16_t>(FooBarContainer::VT_FRUIT, static_cast<int16_t>(fruit), 0);
+    fbb_.AddElement<int16_t>(FooBarContainer::VT_FRUIT,
+                             static_cast<int16_t>(fruit), 0);
   }
   void add_location(flatbuffers::Offset<flatbuffers::String> location) {
     fbb_.AddOffset(FooBarContainer::VT_LOCATION, location);
   }
-  explicit FooBarContainerBuilder(flatbuffers::FlatBufferBuilder &_fbb)
+  explicit FooBarContainerBuilder(flatbuffers::FlatBufferBuilder& _fbb)
-        : fbb_(_fbb) {
+      : fbb_(_fbb) {
     start_ = fbb_.StartTable();
   }
   flatbuffers::Offset<FooBarContainer> Finish() {
@@ -283,8 +246,10 @@ struct FooBarContainerBuilder {
 };
 
 inline flatbuffers::Offset<FooBarContainer> CreateFooBarContainer(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>> list = 0,
+    flatbuffers::Offset<flatbuffers::Vector<
+        flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>>
+        list = 0,
     bool initialized = false,
     benchmarks_flatbuffers::Enum fruit = benchmarks_flatbuffers::Enum_Apples,
     flatbuffers::Offset<flatbuffers::String> location = 0) {
@@ -297,47 +262,52 @@ inline flatbuffers::Offset<FooBarContainer> CreateFooBarContainer(
 }
 
 inline flatbuffers::Offset<FooBarContainer> CreateFooBarContainerDirect(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    const std::vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>> *list = nullptr,
+    const std::vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>*
+        list = nullptr,
     bool initialized = false,
     benchmarks_flatbuffers::Enum fruit = benchmarks_flatbuffers::Enum_Apples,
-    const char *location = nullptr) {
+    const char* location = nullptr) {
-  auto list__ = list ? _fbb.CreateVector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>(*list) : 0;
+  auto list__ =
+      list ? _fbb.CreateVector<
+                 flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>(*list)
+           : 0;
   auto location__ = location ? _fbb.CreateString(location) : 0;
   return benchmarks_flatbuffers::CreateFooBarContainer(
-      _fbb,
+      _fbb, list__, initialized, fruit, location__);
-      list__,
-      initialized,
-      fruit,
-      location__);
 }
 
-inline const benchmarks_flatbuffers::FooBarContainer *GetFooBarContainer(const void *buf) {
+inline const benchmarks_flatbuffers::FooBarContainer* GetFooBarContainer(
+    const void* buf) {
   return flatbuffers::GetRoot<benchmarks_flatbuffers::FooBarContainer>(buf);
 }
 
-inline const benchmarks_flatbuffers::FooBarContainer *GetSizePrefixedFooBarContainer(const void *buf) {
+inline const benchmarks_flatbuffers::FooBarContainer*
-  return flatbuffers::GetSizePrefixedRoot<benchmarks_flatbuffers::FooBarContainer>(buf);
+GetSizePrefixedFooBarContainer(const void* buf) {
+  return flatbuffers::GetSizePrefixedRoot<
+      benchmarks_flatbuffers::FooBarContainer>(buf);
 }
 
-inline bool VerifyFooBarContainerBuffer(
+inline bool VerifyFooBarContainerBuffer(flatbuffers::Verifier& verifier) {
-    flatbuffers::Verifier &verifier) {
+  return verifier.VerifyBuffer<benchmarks_flatbuffers::FooBarContainer>(
-  return verifier.VerifyBuffer<benchmarks_flatbuffers::FooBarContainer>(nullptr);
+      nullptr);
 }
 
 inline bool VerifySizePrefixedFooBarContainerBuffer(
-    flatbuffers::Verifier &verifier) {
+    flatbuffers::Verifier& verifier) {
-  return verifier.VerifySizePrefixedBuffer<benchmarks_flatbuffers::FooBarContainer>(nullptr);
+  return verifier
+      .VerifySizePrefixedBuffer<benchmarks_flatbuffers::FooBarContainer>(
+          nullptr);
 }
 
 inline void FinishFooBarContainerBuffer(
-    flatbuffers::FlatBufferBuilder &fbb,
+    flatbuffers::FlatBufferBuilder& fbb,
     flatbuffers::Offset<benchmarks_flatbuffers::FooBarContainer> root) {
   fbb.Finish(root);
 }
 
 inline void FinishSizePrefixedFooBarContainerBuffer(
-    flatbuffers::FlatBufferBuilder &fbb,
+    flatbuffers::FlatBufferBuilder& fbb,
     flatbuffers::Offset<benchmarks_flatbuffers::FooBarContainer> root) {
   fbb.FinishSizePrefixed(root);
 }

benchmarks/cpp/flatbuffers/fb_bench.cpp

@@ -13,10 +13,10 @@ using namespace benchmarks_flatbuffers;
 namespace {
 
 struct FlatBufferBench : Bench {
-  explicit FlatBufferBench(int64_t initial_size, Allocator *allocator)
+  explicit FlatBufferBench(int64_t initial_size, Allocator* allocator)
       : fbb(initial_size, allocator, false) {}
 
-  uint8_t *Encode(void *, int64_t &len) {
+  uint8_t* Encode(void*, int64_t& len) override {
     fbb.Clear();
 
     const int kVectorLength = 3;
@@ -40,7 +40,7 @@ struct FlatBufferBench : Bench {
     return fbb.GetBufferPointer();
   }
 
-  int64_t Use(void *decoded) {
+  int64_t Use(void* decoded) override {
     sum = 0;
     auto foobarcontainer = GetFooBarContainer(decoded);
     sum = 0;
@@ -56,7 +56,7 @@ struct FlatBufferBench : Bench {
       Add(static_cast<int64_t>(bar->ratio()));
       Add(bar->size());
       Add(bar->time());
-      auto &foo = bar->parent();
+      auto& foo = bar->parent();
       Add(foo.count());
       Add(foo.id());
       Add(foo.length());
@@ -65,8 +65,8 @@ struct FlatBufferBench : Bench {
     return sum;
   }
 
-  void *Decode(void *buffer, int64_t) { return buffer; }
+  void* Decode(void* buffer, int64_t) override { return buffer; }
-  void Dealloc(void *) override{};
+  void Dealloc(void*) override {};
 
   FlatBufferBuilder fbb;
 };
@@ -74,7 +74,7 @@ struct FlatBufferBench : Bench {
 }  // namespace
 
 std::unique_ptr<Bench> NewFlatBuffersBench(int64_t initial_size,
-                                           Allocator *allocator) {
+                                           Allocator* allocator) {
   return std::unique_ptr<FlatBufferBench>(
       new FlatBufferBench(initial_size, allocator));
 }

benchmarks/cpp/flatbuffers/fb_bench.h

@@ -8,16 +8,16 @@
 #include "include/flatbuffers/flatbuffers.h"
 
 struct StaticAllocator : public flatbuffers::Allocator {
-  explicit StaticAllocator(uint8_t *buffer) : buffer_(buffer) {}
+  explicit StaticAllocator(uint8_t* buffer) : buffer_(buffer) {}
 
-  uint8_t *allocate(size_t) override { return buffer_; }
+  uint8_t* allocate(size_t) override { return buffer_; }
 
-  void deallocate(uint8_t *, size_t) override {}
+  void deallocate(uint8_t*, size_t) override {}
 
-  uint8_t *buffer_;
+  uint8_t* buffer_;
 };
 
 std::unique_ptr<Bench> NewFlatBuffersBench(
-    int64_t initial_size = 1024, flatbuffers::Allocator *allocator = nullptr);
+    int64_t initial_size = 1024, flatbuffers::Allocator* allocator = nullptr);
 
 #endif  // BENCHMARKS_CPP_FLATBUFFERS_FB_BENCH_H_

benchmarks/cpp/raw/raw_bench.cpp

@@ -45,8 +45,8 @@ struct FooBarContainer {
 };
 
 struct RawBench : Bench {
-  uint8_t *Encode(void *buf, int64_t &len) {
+  uint8_t* Encode(void* buf, int64_t& len) override {
-    FooBarContainer *fbc = new (buf) FooBarContainer;
+    FooBarContainer* fbc = new (buf) FooBarContainer;
     strcpy(fbc->location, "http://google.com/flatbuffers/");  // Unsafe eek!
     fbc->location_len = (int)strlen(fbc->location);
     fbc->fruit = Bananas;
@@ -54,16 +54,16 @@ struct RawBench : Bench {
     for (int i = 0; i < kVectorLength; i++) {
       // We add + i to not make these identical copies for a more realistic
       // compression test.
-      auto &foobar = fbc->list[i];
+      auto& foobar = fbc->list[i];
       foobar.rating = 3.1415432432445543543 + i;
       foobar.postfix = '!' + i;
       strcpy(foobar.name, "Hello, World!");
       foobar.name_len = (int)strlen(foobar.name);
-      auto &bar = foobar.sibling;
+      auto& bar = foobar.sibling;
       bar.ratio = 3.14159f + i;
       bar.size = 10000 + i;
       bar.time = 123456 + i;
-      auto &foo = bar.parent;
+      auto& foo = bar.parent;
       foo.id = 0xABADCAFEABADCAFE + i;
       foo.count = 10000 + i;
       foo.length = 1000000 + i;
@@ -71,11 +71,11 @@ struct RawBench : Bench {
     }
 
     len = sizeof(FooBarContainer);
-    return reinterpret_cast<uint8_t *>(fbc);
+    return reinterpret_cast<uint8_t*>(fbc);
   };
 
-  int64_t Use(void *decoded) {
+  int64_t Use(void* decoded) override {
-    auto foobarcontainer = reinterpret_cast<FooBarContainer *>(decoded);
+    auto foobarcontainer = reinterpret_cast<FooBarContainer*>(decoded);
     sum = 0;
     Add(foobarcontainer->initialized);
     Add(foobarcontainer->location_len);
@@ -89,7 +89,7 @@ struct RawBench : Bench {
       Add(static_cast<int64_t>(bar->ratio));
       Add(bar->size);
       Add(bar->time);
-      auto &foo = bar->parent;
+      auto& foo = bar->parent;
       Add(foo.count);
       Add(foo.id);
       Add(foo.length);
@@ -98,8 +98,8 @@ struct RawBench : Bench {
     return sum;
   }
 
-  void *Decode(void *buf, int64_t) { return buf; }
+  void* Decode(void* buf, int64_t) override { return buf; }
-  void Dealloc(void *) override{};
+  void Dealloc(void*) override {};
 };
 
 }  // namespace

benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift

@@ -0,0 +1,266 @@
+/*
+ * Copyright 2024 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Benchmark
+import FlatBuffers
+import Foundation
+
+@usableFromInline
+struct AA: NativeStruct {
+  public init(a: Double, b: Double) {
+    self.a = a
+    self.b = b
+  }
+  var a: Double
+  var b: Double
+}
+
+let benchmarks = {
+  let oneGB: Int32 = 1_024_000_000
+  let data = {
+    var array = [8888.88, 8888.88]
+    var data = Data()
+    array.withUnsafeBytes { ptr in
+      data.append(contentsOf: ptr)
+    }
+    return data
+  }()
+  let ints: [Int] = Array(repeating: 42, count: 100)
+  let bytes: [UInt8] = Array(repeating: 42, count: 100)
+  let str10 = (0...9).map { _ -> String in "x" }.joined()
+  let str100 = (0...99).map { _ -> String in "x" }.joined()
+  let array: [AA] = [
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+  ]
+
+  let metrics: [BenchmarkMetric] = [
+    .cpuTotal,
+    .wallClock,
+    .mallocCountTotal,
+    .releaseCount,
+    .peakMemoryResident,
+  ]
+  let maxIterations = 1_000_000
+  let maxDuration: Duration = .seconds(3)
+  let singleConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .one,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+  let kiloConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .kilo,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+  let megaConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .mega,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+
+  Benchmark.defaultConfiguration = megaConfiguration
+
+  Benchmark("Allocating 1GB", configuration: singleConfiguration) { benchmark in
+    for _ in benchmark.scaledIterations {
+      blackHole(FlatBufferBuilder(initialSize: oneGB))
+    }
+  }
+
+  Benchmark(
+    "Allocating ByteBuffer 1GB",
+    configuration: singleConfiguration)
+  { benchmark in
+    let memory = UnsafeMutableRawPointer.allocate(
+      byteCount: 1_024_000_000,
+      alignment: 1)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(ByteBuffer(assumingMemoryBound: memory, capacity: Int(oneGB)))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Clearing 1GB", configuration: singleConfiguration) { benchmark in
+    var fb = FlatBufferBuilder(initialSize: oneGB)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.clear())
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Strings 10") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.create(string: str10))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Strings 100") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.create(string: str100))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Vector 1 Bytes") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.createVector(bytes: bytes))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Vector 1 Ints") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.createVector(ints))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Vector 100 Ints") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for i in benchmark.scaledIterations {
+      blackHole(fb.createVector(ints))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Vector 100 Bytes") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for i in benchmark.scaledIterations {
+      blackHole(fb.createVector(bytes))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Vector 100 ContiguousBytes") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for i in benchmark.scaledIterations {
+      blackHole(fb.createVector(bytes: bytes))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark(
+    "FlatBufferBuilder Add",
+    configuration: kiloConfiguration)
+  { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let off = fb.create(string: "T")
+      let s = fb.startTable(with: 4)
+      fb.add(element: 3.2, def: 0, at: 2)
+      fb.add(element: 4.2, def: 0, at: 4)
+      fb.add(element: 5.2, def: 0, at: 6)
+      fb.add(offset: off, at: 8)
+      blackHole(fb.endTable(at: s))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark(
+    "FlatBufferBuilder Start table",
+    configuration: kiloConfiguration)
+  { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let s = fb.startTable(with: 4)
+      blackHole(fb.endTable(at: s))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Struct") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.create(struct: array.first!))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Structs") { benchmark in
+    let rawSize = ((16 * 5) * benchmark.scaledIterations.count) / 1024
+    var fb = FlatBufferBuilder(initialSize: Int32(rawSize * 1600))
+    var offsets: [Offset] = []
+
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let vector = fb.createVector(
+        ofStructs: array)
+      let start = fb.startTable(with: 1)
+      fb.add(offset: vector, at: 4)
+      offsets.append(Offset(offset: fb.endTable(at: start)))
+    }
+
+    let vector = fb.createVector(ofOffsets: offsets)
+    let start = fb.startTable(with: 1)
+    fb.add(offset: vector, at: 4)
+    let root = Offset(offset: fb.endTable(at: start))
+    blackHole(fb.finish(offset: root))
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Vector of Offsets") { benchmark in
+    let rawSize = ((16 * 5) * benchmark.scaledIterations.count) / 1024
+    var fb = FlatBufferBuilder(initialSize: Int32(rawSize * 1600))
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let offsets = [
+        fb.create(string: "T"),
+        fb.create(string: "2"),
+        fb.create(string: "3"),
+      ]
+      let off = fb.createVector(ofOffsets: [
+        fb.createVector(ofOffsets: offsets),
+        fb.createVector(ofOffsets: offsets),
+      ])
+      let s = fb.startTable(with: 2)
+      fb.add(offset: off, at: 2)
+      blackHole(fb.endTable(at: s))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Reading Doubles") { benchmark in
+    let byteBuffer = ByteBuffer(data: data)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(byteBuffer.read(def: Double.self, position: 0))
+    }
+    benchmark.stopMeasurement()
+  }
+}

benchmarks/swift/Benchmarks/FlexBuffersBenchmarks/FlexBuffersBenchmarks.swift

@@ -0,0 +1,174 @@
+/*
+ * Copyright 2024 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Benchmark
+import FlexBuffers
+import Foundation
+
+let benchmarks = {
+  let data = {
+    var array = [8888.88, 8888.88]
+    var data = Data()
+    array.withUnsafeBytes { ptr in
+      data.append(contentsOf: ptr)
+    }
+    return data
+  }()
+  let ints: [Int32] = Array(repeating: 42, count: 100)
+  let str10 = (0...9).map { _ -> String in "x" }.joined()
+  let str100 = (0...99).map { _ -> String in "x" }.joined()
+
+  // A representative map: 50 keyed scalars, a keyed string and a keyed vector
+  // of 100 scalars. Used for the realistic decode benchmarks.
+  let mapBuffer: ByteBuffer = {
+    var fbx = FlexBuffersWriter(initialSize: 1 << 16)
+    fbx.map {
+      for i in 0..<50 { $0.add(int: i, key: "i\(i)") }
+      $0.add(string: "hello world", key: "s")
+      $0.vector(key: "v") { v in
+        for x in 0..<100 { v.add(int: x) }
+      }
+    }
+    fbx.finish()
+    return fbx.sizedByteBuffer
+  }()
+
+  let metrics: [BenchmarkMetric] = [
+    .cpuTotal,
+    .wallClock,
+    .mallocCountTotal,
+    .releaseCount,
+    .peakMemoryResident,
+  ]
+  let maxIterations = 1_000_000
+  let maxDuration: Duration = .seconds(3)
+  let megaConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .mega,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+
+  Benchmark.defaultConfiguration = megaConfiguration
+
+  // Decode (read path)
+
+  // Raw scalar read: isolates `read<T: BitwiseCopyable>` and the `let` blob.
+  Benchmark("Reading Doubles") { benchmark in
+    let byteBuffer = ByteBuffer(data: data)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(byteBuffer.read(def: Double.self, position: 0))
+    }
+    benchmark.stopMeasurement()
+  }
+
+  // Realistic decode: resolve root map and read a keyed scalar.
+  Benchmark("Decode Map Scalar") { benchmark in
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let map = try! getRoot(buffer: mapBuffer)!.map!
+      blackHole(map["i25"]?.int)
+    }
+    benchmark.stopMeasurement()
+  }
+
+  // Realistic decode: resolve root map and read a keyed string.
+  Benchmark("Decode Map String") { benchmark in
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let map = try! getRoot(buffer: mapBuffer)!.map!
+      blackHole(map["s"]?.string())
+    }
+    benchmark.stopMeasurement()
+  }
+
+  // Realistic decode: resolve a nested vector and sum its scalars.
+  Benchmark("Decode Vector") { benchmark in
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let map = try! getRoot(buffer: mapBuffer)!.map!
+      let vector = map["v"]!.vector!
+      var sum: Int64 = 0
+      for i in 0..<vector.count {
+        sum &+= vector[i]?.int ?? 0
+      }
+      blackHole(sum)
+    }
+    benchmark.stopMeasurement()
+  }
+
+  // Encode (write path)
+  // Writers are reused with `reset(keepingCapacity:)` so per-iteration
+  // allocation does not dominate and mask the write-path cost (which is what
+  // the `@exclusivity(unchecked)` storage pointer affects).
+
+  Benchmark("Strings 10") { benchmark in
+    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      fbx.add(string: str10)
+      fbx.finish()
+      blackHole(fbx.sizedByteBuffer)
+      fbx.reset(keepingCapacity: true)
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Strings 100") { benchmark in
+    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      fbx.add(string: str100)
+      fbx.finish()
+      blackHole(fbx.sizedByteBuffer)
+      fbx.reset(keepingCapacity: true)
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Encoding Vector Of Ints") { benchmark in
+    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      fbx.vector {
+        $0.create(vector: ints)
+      }
+      fbx.finish()
+      blackHole(fbx.sizedByteBuffer)
+      fbx.reset(keepingCapacity: true)
+    }
+    benchmark.stopMeasurement()
+  }
+
+  Benchmark("Encoding Map") { benchmark in
+    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      fbx.map {
+        for i in 0..<50 { $0.add(int: i, key: "i\(i)") }
+        $0.add(string: "hello world", key: "s")
+        $0.vector(key: "v") { v in
+          for x in 0..<100 { v.add(int: x) }
+        }
+      }
+      fbx.finish()
+      blackHole(fbx.sizedByteBuffer)
+      fbx.reset(keepingCapacity: true)
+    }
+    benchmark.stopMeasurement()
+  }
+}

benchmarks/swift/Package.swift

@@ -0,0 +1,52 @@
+// swift-tools-version:5.10
+/*
+ * Copyright 2020 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import PackageDescription
+
+let package = Package(
+  name: "benchmarks",
+  platforms: [
+    .macOS(.v13),
+  ],
+  dependencies: [
+    .package(path: "../.."),
+    .package(
+      url: "https://github.com/ordo-one/package-benchmark",
+      from: "1.27.0"),
+  ],
+  targets: [
+    .executableTarget(
+      name: "FlatbuffersBenchmarks",
+      dependencies: [
+        .product(name: "FlatBuffers", package: "flatbuffers"),
+        .product(name: "Benchmark", package: "package-benchmark"),
+      ],
+      path: "Benchmarks/FlatbuffersBenchmarks",
+      plugins: [
+        .plugin(name: "BenchmarkPlugin", package: "package-benchmark"),
+      ]),
+    .executableTarget(
+      name: "FlexBuffersBenchmarks",
+      dependencies: [
+        .product(name: "FlexBuffers", package: "flatbuffers"),
+        .product(name: "Benchmark", package: "package-benchmark"),
+      ],
+      path: "Benchmarks/FlexBuffersBenchmarks",
+      plugins: [
+        .plugin(name: "BenchmarkPlugin", package: "package-benchmark"),
+      ]),
+  ])

benchmarks/swift/README.md

@@ -0,0 +1,9 @@
+# Benchmarks
+
+To open the benchmarks in xcode use:
+
+`open --env BENCHMARK_DISABLE_JEMALLOC=true Package.swift`
+
+or running them directly within terminal using:
+
+`swift package benchmark`

build_defs.bzl

@@ -7,14 +7,23 @@ Rules for building C++ flatbuffers with Bazel.
 
 load("@rules_cc//cc:defs.bzl", "cc_library")
 
-flatc_path = "@com_github_google_flatbuffers//:flatc"
+TRUE_FLATC_PATH = Label("//:flatc")
 
 DEFAULT_INCLUDE_PATHS = [
     "./",
     "$(GENDIR)",
     "$(BINDIR)",
+    "$(execpath %s).runfiles/%s" % (TRUE_FLATC_PATH, TRUE_FLATC_PATH.repo_name),
 ]
 
+def default_include_paths(flatc_path):
+    return [
+        "./",
+        "$(GENDIR)",
+        "$(BINDIR)",
+        "$(execpath %s).runfiles/%s" % (flatc_path, flatc_path.repo_name),
+    ]
+
 DEFAULT_FLATC_ARGS = [
     "--gen-object-api",
     "--gen-compare",
@@ -31,13 +40,18 @@ def flatbuffer_library_public(
         language_flag,
         out_prefix = "",
         includes = [],
-        include_paths = DEFAULT_INCLUDE_PATHS,
+        include_paths = None,
         flatc_args = DEFAULT_FLATC_ARGS,
         reflection_name = "",
         reflection_visibility = None,
         compatible_with = None,
         restricted_to = None,
-        output_to_bindir = False):
+        target_compatible_with = None,
+        flatc_path = None,
+        output_to_bindir = False,
+        tools = None,
+        extra_env = None,
+        **kwargs):
     """Generates code files for reading/writing the given flatbuffers in the requested language using the public compiler.
 
     Args:
@@ -58,15 +72,33 @@ def flatbuffer_library_public(
         built for, in addition to default-supported environments.
       restricted_to: Optional, The list of environments this rule can be built
         for, instead of default-supported environments.
+      target_compatible_with: Optional, The list of target platform constraints
+        to use.
+      flatc_path: Bazel target corresponding to the flatc compiler to use.
       output_to_bindir: Passed to genrule for output to bin directory.
+      tools: Optional, passed to genrule for list of tools to make available
+        during the action.
+      extra_env: Optional, must be a string of "VAR1=VAL1 VAR2=VAL2". These get
+        set as environment variables that "flatc_path" sees.
+      **kwargs: Passed to the underlying genrule.
 
 
     This rule creates a filegroup(name) with all generated source files, and
     optionally a Fileset([reflection_name]) with all generated reflection
     binaries.
     """
+    if flatc_path == None:
+        flatc_path = TRUE_FLATC_PATH
+    else:
+        flatc_path = native.package_relative_label(flatc_path)
+
+    reflection_include_paths = include_paths
+    if include_paths == None:
+        include_paths = default_include_paths(flatc_path)
     include_paths_cmd = ["-I %s" % (s) for s in include_paths]
 
+    extra_env = extra_env or ""
+
     # '$(@D)' when given a single source target will give the appropriate
     # directory. Appending 'out_prefix' is only necessary when given a build
     # target with multiple sources.
@@ -76,7 +108,7 @@ def flatbuffer_library_public(
     genrule_cmd = " ".join([
         "SRCS=($(SRCS));",
         "for f in $${SRCS[@]:0:%s}; do" % len(srcs),
-        "$(location %s)" % (flatc_path),
+        "OUTPUT_FILE=\"$(OUTS)\" %s $(location %s)" % (extra_env, flatc_path),
         " ".join(include_paths_cmd),
         " ".join(flatc_args),
         language_flag,
@@ -89,39 +121,49 @@ def flatbuffer_library_public(
         srcs = srcs + includes,
         outs = outs,
         output_to_bindir = output_to_bindir,
-        tools = [flatc_path],
+        tools = (tools or []) + [flatc_path],
         cmd = genrule_cmd,
         compatible_with = compatible_with,
+        target_compatible_with = target_compatible_with,
         restricted_to = restricted_to,
         message = "Generating flatbuffer files for %s:" % (name),
+        **kwargs
     )
     if reflection_name:
+        if reflection_include_paths == None:
+            reflection_include_paths = default_include_paths(TRUE_FLATC_PATH)
+        reflection_include_paths_cmd = ["-I %s" % (s) for s in reflection_include_paths]
         reflection_genrule_cmd = " ".join([
             "SRCS=($(SRCS));",
             "for f in $${SRCS[@]:0:%s}; do" % len(srcs),
-            "$(location %s)" % (flatc_path),
+            # Move the .fbs file into the current package if it is not there already
+            'if [[ $$(dirname $$f) != "{0}" ]]; then s="$$f"; f="{0}/$$(basename "$$f")"; mkdir -p "{0}"; mv "$$s" "$$f"; fi;'.format(native.package_relative_label(":invalid").package),
+            "$(location %s)" % (TRUE_FLATC_PATH),
             "-b --schema",
             " ".join(flatc_args),
-            " ".join(include_paths_cmd),
+            " ".join(reflection_include_paths_cmd),
             language_flag,
             output_directory,
             "$$f;",
             "done",
         ])
         reflection_outs = [
-            (out_prefix + "%s.bfbs") % (s.replace(".fbs", "").split("/")[-1])
+            (out_prefix + "%s.bfbs") % (native.package_relative_label(s).name.removesuffix(".fbs"))
             for s in srcs
         ]
+
         native.genrule(
             name = "%s_srcs" % reflection_name,
             srcs = srcs + includes,
             outs = reflection_outs,
             output_to_bindir = output_to_bindir,
-            tools = [flatc_path],
+            tools = [TRUE_FLATC_PATH],
             compatible_with = compatible_with,
             restricted_to = restricted_to,
+            target_compatible_with = target_compatible_with,
             cmd = reflection_genrule_cmd,
             message = "Generating flatbuffer reflection binary for %s:" % (name),
+            visibility = reflection_visibility,
         )
         native.filegroup(
             name = "%s_out" % reflection_name,
@@ -135,16 +177,21 @@ def flatbuffer_cc_library(
         name,
         srcs,
         srcs_filegroup_name = "",
+        outs = [],
         out_prefix = "",
+        deps = [],
         includes = [],
-        include_paths = DEFAULT_INCLUDE_PATHS,
+        include_paths = None,
+        cc_include_paths = [],
         flatc_args = DEFAULT_FLATC_ARGS,
         visibility = None,
         compatible_with = None,
         restricted_to = None,
+        filename_suffix = "_generated",
+        target_compatible_with = None,
         srcs_filegroup_visibility = None,
         gen_reflections = False):
-    '''A cc_library with the generated reader/writers for the given flatbuffer definitions.
+    """A cc_library with the generated reader/writers for the given flatbuffer definitions.
 
     Args:
       name: Rule name.
@@ -152,11 +199,15 @@ def flatbuffer_cc_library(
       srcs_filegroup_name: Name of the output filegroup that holds srcs. Pass this
           filegroup into the `includes` parameter of any other
           flatbuffer_cc_library that depends on this one's schemas.
+      outs: Additional outputs expected to be generated by flatc.
       out_prefix: Prepend this path to the front of all generated files. Usually
           is a directory name.
+      deps: Optional, list of other flatbuffer_cc_library's to depend on. Cannot be specified
+          alongside includes.
       includes: Optional, list of filegroups of schemas that the srcs depend on.
-          ** SEE REMARKS BELOW **
+          Use of this is discouraged, and may be deprecated.
       include_paths: Optional, list of paths the includes files can be found in.
+      cc_include_paths: Optional, list of paths to add to the cc_library includes attribute.
       flatc_args: Optional list of additional arguments to pass to flatc
           (e.g. --gen-mutable).
       visibility: The visibility of the generated cc_library. By default, use the
@@ -169,6 +220,8 @@ def flatbuffer_cc_library(
         for, in addition to default-supported environments.
       restricted_to: Optional, The list of environments this rule can be built
         for, instead of default-supported environments.
+      target_compatible_with: Optional, The list of target platform constraints
+        to use.
 
     This produces:
       filegroup([name]_srcs): all generated .h files.
@@ -177,48 +230,27 @@ def flatbuffer_cc_library(
           parameter, if they depend on the schemas in this library.
       Fileset([name]_reflection): (Optional) all generated reflection binaries.
       cc_library([name]): library with sources and flatbuffers deps.
+    """
 
-    Remarks:
+    output_headers = []
-      ** Because the genrule used to call flatc does not have any trivial way of
+    for s in srcs:
-        computing the output list of files transitively generated by includes and
+        base_name = s.split("/")[-1].split(":")[-1].replace(".fbs", "")
-        --gen-includes (the default) being defined for flatc, the --gen-includes
+        header = out_prefix + base_name + filename_suffix + ".h"
-        flag will not work as expected. The way around this is to add a dependency
+        output_headers.append(header)
-        to the flatbuffer_cc_library defined alongside the flatc included Fileset.
-        For example you might define:
 
-        flatbuffer_cc_library(
+    if deps and includes:
-            name = "my_fbs",
+        # There is no inherent reason we couldn't support both, but this discourages
-            srcs = [ "schemas/foo.fbs" ],
+        # use of includes without good reason.
-            includes = [ "//third_party/bazz:bazz_fbs_includes" ],
+        fail("Cannot specify both deps and include in flatbuffer_cc_library.")
-        )
+    if deps:
-
+        includes = [d + "_includes" for d in deps]
-        In which foo.fbs includes a few files from the Fileset defined at
-        //third_party/bazz:bazz_fbs_includes. When compiling the library that
-        includes foo_generated.h, and therefore has my_fbs as a dependency, it
-        will fail to find any of the bazz *_generated.h files unless you also
-        add bazz's flatbuffer_cc_library to your own dependency list, e.g.:
-
-        cc_library(
-            name = "my_lib",
-            deps = [
-                ":my_fbs",
-                "//third_party/bazz:bazz_fbs"
-            ],
-        )
-
-        Happy dependent Flatbuffering!
-    '''
-    output_headers = [
-        (out_prefix + "%s_generated.h") % (s.replace(".fbs", "").split("/")[-1].split(":")[-1])
-        for s in srcs
-    ]
     reflection_name = "%s_reflection" % name if gen_reflections else ""
 
     srcs_lib = "%s_srcs" % (name)
     flatbuffer_library_public(
         name = srcs_lib,
         srcs = srcs,
-        outs = output_headers,
+        outs = outs + output_headers,
         language_flag = "-c",
         out_prefix = out_prefix,
         includes = includes,
@@ -226,6 +258,7 @@ def flatbuffer_cc_library(
         flatc_args = flatc_args,
         compatible_with = compatible_with,
         restricted_to = restricted_to,
+        target_compatible_with = target_compatible_with,
         reflection_name = reflection_name,
         reflection_visibility = visibility,
     )
@@ -241,11 +274,13 @@ def flatbuffer_cc_library(
             "-parse_headers",
         ],
         deps = [
-            "@com_github_google_flatbuffers//:runtime_cc",
+            Label("//:runtime_cc"),
-        ],
+            Label("//:flatbuffers"),
-        includes = [],
+        ] + deps,
+        includes = cc_include_paths,
         compatible_with = compatible_with,
         restricted_to = restricted_to,
+        target_compatible_with = target_compatible_with,
         linkstatic = 1,
         visibility = visibility,
     )
@@ -254,7 +289,7 @@ def flatbuffer_cc_library(
     # Flatbuffer set.
     native.filegroup(
         name = srcs_filegroup_name if srcs_filegroup_name else "%s_includes" % (name),
-        srcs = srcs,
+        srcs = srcs + includes,
         compatible_with = compatible_with,
         restricted_to = restricted_to,
         visibility = srcs_filegroup_visibility if srcs_filegroup_visibility != None else visibility,

conan/CMakeLists.txt

@@ -1,12 +0,0 @@
-cmake_minimum_required(VERSION 2.8)
-
-message(STATUS "Conan FlatBuffers Wrapper")
-
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup()
-
-if (WIN32 AND MSVC AND FLATBUFFERS_BUILD_SHAREDLIB)
-    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
-endif(WIN32 AND MSVC AND FLATBUFFERS_BUILD_SHAREDLIB)
-
-include(${CMAKE_SOURCE_DIR}/CMakeListsOriginal.txt)

conan/appveyor/build.py

@@ -1,8 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-import os
-
-if os.getenv("APPVEYOR_REPO_TAG") != "true":
-    print("Skip build step. It's not TAG")
-else:
-    os.system("python conan/build.py")

conan/appveyor/install.py

@@ -1,8 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-import os
-
-if os.getenv("APPVEYOR_REPO_TAG") != "true":
-    print("Skip step. It's not TAG")
-else:
-    os.system("pip install conan conan-package-tools")

conan/build.py

@@ -1,69 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-import os
-import re
-import subprocess
-from cpt.packager import ConanMultiPackager
-
-
-def set_appveyor_environment():
-    if os.getenv("APPVEYOR") is not None:
-        compiler_version = os.getenv("CMAKE_VS_VERSION").split(" ")[0].replace('"', '')
-        os.environ["CONAN_VISUAL_VERSIONS"] = compiler_version
-        os.environ["CONAN_STABLE_BRANCH_PATTERN"] = "master"
-        ci_platform = os.getenv("Platform").replace('"', '')
-        ci_platform = "x86" if ci_platform == "x86" else "x86_64"
-        os.environ["CONAN_ARCHS"] = ci_platform
-        os.environ["CONAN_BUILD_TYPES"] = os.getenv("Configuration").replace('"', '')
-
-
-def get_branch():
-    try:
-        for line in subprocess.check_output("git branch", shell=True).decode().splitlines():
-            line = line.strip()
-            if line.startswith("*") and " (HEAD detached" not in line:
-                return line.replace("*", "", 1).strip()
-        return ""
-    except Exception:
-        pass
-    return ""
-
-
-def get_version():
-    version = get_branch()
-    if os.getenv("TRAVIS", False):
-        version = os.getenv("TRAVIS_BRANCH")
-
-    if os.getenv("APPVEYOR", False):
-        version = os.getenv("APPVEYOR_REPO_BRANCH")
-        if os.getenv("APPVEYOR_REPO_TAG") == "true":
-            version = os.getenv("APPVEYOR_REPO_TAG_NAME")
-
-    match = re.search(r"v(\d+\.\d+\.\d+.*)", version)
-    if match:
-        return match.group(1)
-    return version
-
-
-def get_reference(username):
-    return "flatbuffers/{}@google/stable".format(get_version())
-
-
-if __name__ == "__main__":
-    login_username = os.getenv("CONAN_LOGIN_USERNAME", "aardappel")
-    username = os.getenv("CONAN_USERNAME", "google")
-    upload = os.getenv("CONAN_UPLOAD", "https://api.bintray.com/conan/aardappel/flatbuffers")
-    stable_branch_pattern = os.getenv("CONAN_STABLE_BRANCH_PATTERN", r"v\d+\.\d+\.\d+.*")
-    test_folder = os.getenv("CPT_TEST_FOLDER", os.path.join("conan", "test_package"))
-    upload_only_when_stable = os.getenv("CONAN_UPLOAD_ONLY_WHEN_STABLE", True)
-    set_appveyor_environment()
-
-    builder = ConanMultiPackager(reference=get_reference(username),
-                                 username=username,
-                                 login_username=login_username,
-                                 upload=upload,
-                                 stable_branch_pattern=stable_branch_pattern,
-                                 upload_only_when_stable=upload_only_when_stable,
-                                 test_folder=test_folder)
-    builder.add_common_builds(pure_c=False)
-    builder.run()

conan/test_package/CMakeLists.txt

@@ -1,9 +0,0 @@
-project(test_package CXX)
-cmake_minimum_required(VERSION 2.8.11)
-
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup()
-
-add_executable(${PROJECT_NAME} test_package.cpp)
-target_link_libraries(${PROJECT_NAME} ${CONAN_LIBS})
-set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)

conan/test_package/conanfile.py

@@ -1,21 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-from conans import ConanFile, CMake
-import os
-
-
-class TestPackageConan(ConanFile):
-    settings = "os", "compiler", "build_type", "arch"
-    generators = "cmake"
-
-    def build(self):
-        cmake = CMake(self)
-        cmake.configure()
-        cmake.build()
-
-    def test(self):
-        bin_path = os.path.join("bin", "test_package")
-        self.run(bin_path, run_environment=True)
-        self.run("flatc --version", run_environment=True)
-        self.run("flathash fnv1_16 conan", run_environment=True)

conan/test_package/test_package.cpp

@@ -1,35 +0,0 @@
-/*
- * Copyright 2018 Google Inc. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cstdlib>
-#include <iostream>
-#include "flatbuffers/util.h"
-
-// Test to validate Conan package generated
-
-int main(int /*argc*/, const char * /*argv*/ []) {
-
-  const std::string filename("conanbuildinfo.cmake");
-
-  if (flatbuffers::FileExists(filename.c_str())) {
-    std::cout << "File " << filename << " exists.\n";
-  } else {
-    std::cout << "File " << filename << " does not exist.\n";
-    return EXIT_FAILURE;
-  }
-
-  return EXIT_SUCCESS;
-}

conan/travis/build.sh

@@ -1,14 +0,0 @@
-#!/bin/bash
-
-set -e
-set -x
-
-if [[ "$(uname -s)" == 'Darwin' ]]; then
-    if which pyenv > /dev/null; then
-        eval "$(pyenv init -)"
-    fi
-    pyenv activate conan
-fi
-
-conan user
-python conan/build.py

conan/travis/install.sh

@@ -1,22 +0,0 @@
-#!/bin/bash
-
-set -e
-set -x
-
-if [[ "$(uname -s)" == 'Darwin' ]]; then
-    brew update || brew update
-    brew outdated pyenv || brew upgrade pyenv
-    brew install pyenv-virtualenv
-    brew install cmake || true
-
-    if which pyenv > /dev/null; then
-        eval "$(pyenv init -)"
-    fi
-
-    pyenv install 2.7.10
-    pyenv virtualenv 2.7.10 conan
-    pyenv rehash
-    pyenv activate conan
-fi
-
-pip install -U conan_package_tools conan

conanfile.py

@@ -1,75 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-"""Conan recipe package for Google FlatBuffers
-"""
-import os
-import shutil
-from conans import ConanFile, CMake, tools
-
-
-class FlatbuffersConan(ConanFile):
-    name = "flatbuffers"
-    license = "Apache-2.0"
-    url = "https://github.com/google/flatbuffers"
-    homepage = "http://google.github.io/flatbuffers/"
-    author = "Wouter van Oortmerssen"
-    topics = ("conan", "flatbuffers", "serialization", "rpc", "json-parser")
-    description = "Memory Efficient Serialization Library"
-    settings = "os", "compiler", "build_type", "arch"
-    options = {"shared": [True, False], "fPIC": [True, False]}
-    default_options = {"shared": False, "fPIC": True}
-    generators = "cmake"
-    exports = "LICENSE.txt"
-    exports_sources = ["CMake/*", "include/*", "src/*", "grpc/*", "CMakeLists.txt", "conan/CMakeLists.txt"]
-
-    def source(self):
-        """Wrap the original CMake file to call conan_basic_setup
-        """
-        shutil.move("CMakeLists.txt", "CMakeListsOriginal.txt")
-        shutil.move(os.path.join("conan", "CMakeLists.txt"), "CMakeLists.txt")
-
-    def config_options(self):
-        """Remove fPIC option on Windows platform
-        """
-        if self.settings.os == "Windows":
-            self.options.remove("fPIC")
-
-    def configure_cmake(self):
-        """Create CMake instance and execute configure step
-        """
-        cmake = CMake(self)
-        cmake.definitions["FLATBUFFERS_BUILD_TESTS"] = False
-        cmake.definitions["FLATBUFFERS_BUILD_SHAREDLIB"] = self.options.shared
-        cmake.definitions["FLATBUFFERS_BUILD_FLATLIB"] = not self.options.shared
-        cmake.configure()
-        return cmake
-
-    def build(self):
-        """Configure, build and install FlatBuffers using CMake.
-        """
-        cmake = self.configure_cmake()
-        cmake.build()
-
-    def package(self):
-        """Copy Flatbuffers' artifacts to package folder
-        """
-        cmake = self.configure_cmake()
-        cmake.install()
-        self.copy(pattern="LICENSE.txt", dst="licenses")
-        self.copy(pattern="FindFlatBuffers.cmake", dst=os.path.join("lib", "cmake", "flatbuffers"), src="CMake")
-        self.copy(pattern="flathash*", dst="bin", src="bin")
-        self.copy(pattern="flatc*", dst="bin", src="bin")
-        if self.settings.os == "Windows" and self.options.shared:
-            if self.settings.compiler == "Visual Studio":
-                shutil.move(os.path.join(self.package_folder, "lib", "%s.dll" % self.name),
-                            os.path.join(self.package_folder, "bin", "%s.dll" % self.name))
-            elif self.settings.compiler == "gcc":
-                shutil.move(os.path.join(self.package_folder, "lib", "lib%s.dll" % self.name),
-                            os.path.join(self.package_folder, "bin", "lib%s.dll" % self.name))
-
-    def package_info(self):
-        """Collect built libraries names and solve flatc path.
-        """
-        self.cpp_info.libs = tools.collect_libs(self)
-        self.user_info.flatc = os.path.join(self.package_folder, "bin", "flatc")

dart/CHANGELOG.md

@@ -1,4 +1,24 @@
-## 2.0.0
+# Changelog
+
+## 25.9.23
+
+- use enhanced enums (#8313)
+- fix incorrect write in Float64 write method (#8290)
+- code format improvements (#8707)
+
+## 23.5.26
+
+- omit type annotationes for local variables (#7067, #7069, #7070)
+- remove BSD 3-clause license (#7073)
+- correctly parse lists of enums (#7157)
+- align naming conventions for generated code (#7187)
+- add `putBool` to fix errors when serializing structs with booleans (#7359)
+- fix handling of +/-inf defaults in codegen (#7588)
+- fix import issues in generated code (#7621)
+- Fix incorrect storage of floats as ints in some cases (#7703)
+- add final modifiers to the library implementation (#7943)
+
+## 2.0.5
 
 - switch to null safety (#6696)
 - add Object APIs (pack/unpack) (#6682, #6723, #6846)

dart/LICENSE

@@ -1,35 +1,3 @@
-The code in lib/flat_buffers.dart is based on code that was releases under the 
-following license:
-
-Copyright 2012, the Dart project authors. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-    * Neither the name of Google Inc. nor the names of its
-      contributors may be used to endorse or promote products derived
-      from this software without specific prior written permission.
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-To the extent permissible, the changes to that code and the other assets in 
-this package are licensed under the Apache2 license:
-
-
                                  Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/

dart/README.md

@@ -2,10 +2,8 @@
 
 This package is used to read and write [FlatBuffers](https://google.github.io/flatbuffers/).
 
-Most consumers will want to use the [`flatc` - FlatBuffer compiler](https://github.com/google/flatbuffers) binary for your platform:
+Most consumers will want to use the [`flatc` - FlatBuffer compiler](https://github.com/google/flatbuffers) binary for your platform.
-* [Linux](https://github.com/google/flatbuffers/suites/4363603985/artifacts/114682272)
+You can download the flatc version matching your dart package version from [GitHub releases](https://github.com/google/flatbuffers/releases).
-* [macOS](https://github.com/google/flatbuffers/suites/4363603985/artifacts/114682273)
-* [Windows](https://github.com/google/flatbuffers/suites/4363603985/artifacts/114682274)
 
 The FlatBuffer compiler `flatc` reads a FlatBuffers IDL schema and generates Dart code.
 The generated classes can be used to read or write binary data/files that are interoperable with
@@ -14,4 +12,4 @@ examples folder.
 
 For more details and documentation, head over to the official site and read the
 [Tutorial](https://google.github.io/flatbuffers/flatbuffers_guide_tutorial.html) and how to
-[use FlatBuffers in Dart](https://google.github.io/flatbuffers/flatbuffers_guide_use_dart.html).
+[use FlatBuffers in Dart](https://google.github.io/flatbuffers/flatbuffers_guide_use_dart.html).

dart/example/example.dart

@@ -15,6 +15,7 @@
  */
 
 import 'package:flat_buffers/flat_buffers.dart' as fb;
+
 import './monster_my_game.sample_generated.dart' as my_game;
 
 // Example how to use FlatBuffers to create and read binary buffers.
@@ -78,7 +79,8 @@ void builderTest() {
   builder.finish(monsteroff);
   if (verify(builder.buffer)) {
     print(
-        "The FlatBuffer was successfully created with a builder and verified!");
+      "The FlatBuffer was successfully created with a builder and verified!",
+    );
   }
 }
 
@@ -94,7 +96,10 @@ void objectBuilderTest() {
     name: 'Orc',
     inventory: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
     color: my_game.Color.Red,
-    weapons: [my_game.WeaponObjectBuilder(name: 'Sword', damage: 3), axe],
+    weapons: [
+      my_game.WeaponObjectBuilder(name: 'Sword', damage: 3),
+      axe,
+    ],
     equippedType: my_game.EquipmentTypeId.Weapon,
     equipped: axe,
   );
@@ -108,7 +113,8 @@ void objectBuilderTest() {
   // Instead, we're going to access it right away (as if we just received it).
   if (verify(buffer)) {
     print(
-        "The FlatBuffer was successfully created with an object builder and verified!");
+      "The FlatBuffer was successfully created with an object builder and verified!",
+    );
   }
 }
 

dart/example/monster_my_game.sample_generated.dart

@@ -4,8 +4,8 @@
 library my_game.sample;
 
 import 'dart:typed_data' show Uint8List;
-import 'package:flat_buffers/flat_buffers.dart' as fb;
 
+import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 class Color {
   final int value;
@@ -19,7 +19,7 @@ class Color {
     return result;
   }
 
-  static Color? _createOrNull(int? value) => 
+  static Color? _createOrNull(int? value) =>
       value == null ? null : Color.fromValue(value);
 
   static const int minValue = 0;
@@ -29,10 +29,7 @@ class Color {
   static const Color Red = Color._(0);
   static const Color Green = Color._(1);
   static const Color Blue = Color._(2);
-  static const Map<int, Color> values = {
+  static const Map<int, Color> values = {0: Red, 1: Green, 2: Blue};
-    0: Red,
-    1: Green,
-    2: Blue};
 
   static const fb.Reader<Color> reader = _ColorReader();
 
@@ -60,12 +57,14 @@ class EquipmentTypeId {
   factory EquipmentTypeId.fromValue(int value) {
     final result = values[value];
     if (result == null) {
-      throw StateError('Invalid value $value for bit flag enum EquipmentTypeId');
+      throw StateError(
+        'Invalid value $value for bit flag enum EquipmentTypeId',
+      );
     }
     return result;
   }
 
-  static EquipmentTypeId? _createOrNull(int? value) => 
+  static EquipmentTypeId? _createOrNull(int? value) =>
       value == null ? null : EquipmentTypeId.fromValue(value);
 
   static const int minValue = 0;
@@ -74,9 +73,7 @@ class EquipmentTypeId {
 
   static const EquipmentTypeId NONE = EquipmentTypeId._(0);
   static const EquipmentTypeId Weapon = EquipmentTypeId._(1);
-  static const Map<int, EquipmentTypeId> values = {
+  static const Map<int, EquipmentTypeId> values = {0: NONE, 1: Weapon};
-    0: NONE,
-    1: Weapon};
 
   static const fb.Reader<EquipmentTypeId> reader = _EquipmentTypeIdReader();
 
@@ -122,8 +119,7 @@ class _Vec3Reader extends fb.StructReader<Vec3> {
   int get size => 12;
 
   @override
-  Vec3 createObject(fb.BufferContext bc, int offset) => 
+  Vec3 createObject(fb.BufferContext bc, int offset) => Vec3._(bc, offset);
-    Vec3._(bc, offset);
 }
 
 class Vec3Builder {
@@ -137,7 +133,6 @@ class Vec3Builder {
     fbBuilder.putFloat32(x);
     return fbBuilder.offset;
   }
-
 }
 
 class Vec3ObjectBuilder extends fb.ObjectBuilder {
@@ -145,14 +140,10 @@ class Vec3ObjectBuilder extends fb.ObjectBuilder {
   final double _y;
   final double _z;
 
-  Vec3ObjectBuilder({
+  Vec3ObjectBuilder({required double x, required double y, required double z})
-    required double x,
+    : _x = x,
-    required double y,
+      _y = y,
-    required double z,
+      _z = z;
-  })
-      : _x = x,
-        _y = y,
-        _z = z;
 
   /// Finish building, and store into the [fbBuilder].
   @override
@@ -171,6 +162,7 @@ class Vec3ObjectBuilder extends fb.ObjectBuilder {
     return fbBuilder.buffer;
   }
 }
+
 class Monster {
   Monster._(this._bc, this._bcOffset);
   factory Monster(List<int> bytes) {
@@ -186,18 +178,30 @@ class Monster {
   Vec3? get pos => Vec3.reader.vTableGetNullable(_bc, _bcOffset, 4);
   int get mana => const fb.Int16Reader().vTableGet(_bc, _bcOffset, 6, 150);
   int get hp => const fb.Int16Reader().vTableGet(_bc, _bcOffset, 8, 100);
-  String? get name => const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 10);
+  String? get name =>
-  List<int>? get inventory => const fb.Uint8ListReader().vTableGetNullable(_bc, _bcOffset, 14);
+      const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 10);
-  Color get color => Color.fromValue(const fb.Int8Reader().vTableGet(_bc, _bcOffset, 16, 2));
+  List<int>? get inventory =>
-  List<Weapon>? get weapons => const fb.ListReader<Weapon>(Weapon.reader).vTableGetNullable(_bc, _bcOffset, 18);
+      const fb.Uint8ListReader().vTableGetNullable(_bc, _bcOffset, 14);
-  EquipmentTypeId? get equippedType => EquipmentTypeId._createOrNull(const fb.Uint8Reader().vTableGetNullable(_bc, _bcOffset, 20));
+  Color get color =>
+      Color.fromValue(const fb.Int8Reader().vTableGet(_bc, _bcOffset, 16, 2));
+  List<Weapon>? get weapons => const fb.ListReader<Weapon>(
+    Weapon.reader,
+  ).vTableGetNullable(_bc, _bcOffset, 18);
+  EquipmentTypeId? get equippedType => EquipmentTypeId._createOrNull(
+    const fb.Uint8Reader().vTableGetNullable(_bc, _bcOffset, 20),
+  );
   dynamic get equipped {
     switch (equippedType?.value) {
-      case 1: return Weapon.reader.vTableGetNullable(_bc, _bcOffset, 22);
+      case 1:
-      default: return null;
+        return Weapon.reader.vTableGetNullable(_bc, _bcOffset, 22);
+      default:
+        return null;
     }
   }
-  List<Vec3>? get path => const fb.ListReader<Vec3>(Vec3.reader).vTableGetNullable(_bc, _bcOffset, 24);
+
+  List<Vec3>? get path => const fb.ListReader<Vec3>(
+    Vec3.reader,
+  ).vTableGetNullable(_bc, _bcOffset, 24);
 
   @override
   String toString() {
@@ -209,8 +213,8 @@ class _MonsterReader extends fb.TableReader<Monster> {
   const _MonsterReader();
 
   @override
-  Monster createObject(fb.BufferContext bc, int offset) => 
+  Monster createObject(fb.BufferContext bc, int offset) =>
-    Monster._(bc, offset);
+      Monster._(bc, offset);
 }
 
 class MonsterBuilder {
@@ -226,38 +230,47 @@ class MonsterBuilder {
     fbBuilder.addStruct(0, offset);
     return fbBuilder.offset;
   }
+
   int addMana(int? mana) {
     fbBuilder.addInt16(1, mana);
     return fbBuilder.offset;
   }
+
   int addHp(int? hp) {
     fbBuilder.addInt16(2, hp);
     return fbBuilder.offset;
   }
+
   int addNameOffset(int? offset) {
     fbBuilder.addOffset(3, offset);
     return fbBuilder.offset;
   }
+
   int addInventoryOffset(int? offset) {
     fbBuilder.addOffset(5, offset);
     return fbBuilder.offset;
   }
+
   int addColor(Color? color) {
     fbBuilder.addInt8(6, color?.value);
     return fbBuilder.offset;
   }
+
   int addWeaponsOffset(int? offset) {
     fbBuilder.addOffset(7, offset);
     return fbBuilder.offset;
   }
+
   int addEquippedType(EquipmentTypeId? equippedType) {
     fbBuilder.addUint8(8, equippedType?.value);
     return fbBuilder.offset;
   }
+
   int addEquippedOffset(int? offset) {
     fbBuilder.addOffset(9, offset);
     return fbBuilder.offset;
   }
+
   int addPathOffset(int? offset) {
     fbBuilder.addOffset(10, offset);
     return fbBuilder.offset;
@@ -291,29 +304,34 @@ class MonsterObjectBuilder extends fb.ObjectBuilder {
     EquipmentTypeId? equippedType,
     dynamic equipped,
     List<Vec3ObjectBuilder>? path,
-  })
+  }) : _pos = pos,
-      : _pos = pos,
+       _mana = mana,
-        _mana = mana,
+       _hp = hp,
-        _hp = hp,
+       _name = name,
-        _name = name,
+       _inventory = inventory,
-        _inventory = inventory,
+       _color = color,
-        _color = color,
+       _weapons = weapons,
-        _weapons = weapons,
+       _equippedType = equippedType,
-        _equippedType = equippedType,
+       _equipped = equipped,
-        _equipped = equipped,
+       _path = path;
-        _path = path;
 
   /// Finish building, and store into the [fbBuilder].
   @override
   int finish(fb.Builder fbBuilder) {
-    final int? nameOffset = _name == null ? null
+    final int? nameOffset = _name == null
+        ? null
         : fbBuilder.writeString(_name!);
-    final int? inventoryOffset = _inventory == null ? null
+    final int? inventoryOffset = _inventory == null
+        ? null
         : fbBuilder.writeListUint8(_inventory!);
-    final int? weaponsOffset = _weapons == null ? null
+    final int? weaponsOffset = _weapons == null
-        : fbBuilder.writeList(_weapons!.map((b) => b.getOrCreateOffset(fbBuilder)).toList());
+        ? null
+        : fbBuilder.writeList(
+            _weapons!.map((b) => b.getOrCreateOffset(fbBuilder)).toList(),
+          );
     final int? equippedOffset = _equipped?.getOrCreateOffset(fbBuilder);
-    final int? pathOffset = _path == null ? null
+    final int? pathOffset = _path == null
+        ? null
         : fbBuilder.writeListOfStructs(_path!);
     fbBuilder.startTable(10);
     if (_pos != null) {
@@ -339,6 +357,7 @@ class MonsterObjectBuilder extends fb.ObjectBuilder {
     return fbBuilder.buffer;
   }
 }
+
 class Weapon {
   Weapon._(this._bc, this._bcOffset);
   factory Weapon(List<int> bytes) {
@@ -351,7 +370,8 @@ class Weapon {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-  String? get name => const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 4);
+  String? get name =>
+      const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 4);
   int get damage => const fb.Int16Reader().vTableGet(_bc, _bcOffset, 6, 0);
 
   @override
@@ -364,8 +384,7 @@ class _WeaponReader extends fb.TableReader<Weapon> {
   const _WeaponReader();
 
   @override
-  Weapon createObject(fb.BufferContext bc, int offset) => 
+  Weapon createObject(fb.BufferContext bc, int offset) => Weapon._(bc, offset);
-    Weapon._(bc, offset);
 }
 
 class WeaponBuilder {
@@ -381,6 +400,7 @@ class WeaponBuilder {
     fbBuilder.addOffset(0, offset);
     return fbBuilder.offset;
   }
+
   int addDamage(int? damage) {
     fbBuilder.addInt16(1, damage);
     return fbBuilder.offset;
@@ -395,17 +415,15 @@ class WeaponObjectBuilder extends fb.ObjectBuilder {
   final String? _name;
   final int? _damage;
 
-  WeaponObjectBuilder({
+  WeaponObjectBuilder({String? name, int? damage})
-    String? name,
+    : _name = name,
-    int? damage,
+      _damage = damage;
-  })
-      : _name = name,
-        _damage = damage;
 
   /// Finish building, and store into the [fbBuilder].
   @override
   int finish(fb.Builder fbBuilder) {
-    final int? nameOffset = _name == null ? null
+    final int? nameOffset = _name == null
+        ? null
         : fbBuilder.writeString(_name!);
     fbBuilder.startTable(2);
     fbBuilder.addOffset(0, nameOffset);

dart/lib/flat_buffers.dart

@@ -1,7 +1,3 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:math';
@@ -31,10 +27,11 @@ class BufferContext {
   ByteData get buffer => _buffer;
 
   /// Create from a FlatBuffer represented by a list of bytes (uint8).
-  factory BufferContext.fromBytes(List<int> byteList) =>
+  factory BufferContext.fromBytes(List<int> byteList) => BufferContext(
-      BufferContext(byteList is Uint8List
+    byteList is Uint8List
-          ? byteList.buffer.asByteData(byteList.offsetInBytes)
+        ? byteList.buffer.asByteData(byteList.offsetInBytes)
-          : ByteData.view(Uint8List.fromList(byteList).buffer));
+        : ByteData.view(Uint8List.fromList(byteList).buffer),
+  );
 
   /// Create from a FlatBuffer represented by ByteData.
   BufferContext(this._buffer);
@@ -153,9 +150,9 @@ class Builder {
     bool internStrings = false,
     Allocator allocator = const DefaultAllocator(),
     this.deduplicateTables = true,
-  })  : _allocator = allocator,
+  }) : _allocator = allocator,
-        _buf = allocator.allocate(initialSize),
+       _buf = allocator.allocate(initialSize),
-        _vTables = deduplicateTables ? [] : const [] {
+       _vTables = deduplicateTables ? [] : const [] {
     if (internStrings) {
       _strings = <String, int>{};
     }
@@ -308,7 +305,7 @@ class Builder {
     assert(_inVTable);
     // Prepare for writing the VTable.
     _prepare(_sizeofInt32, 1);
-    int tableTail = _tail;
+    final tableTail = _tail;
     // Prepare the size of the current table.
     final currentVTable = _currentVTable!;
     currentVTable.tableSize = tableTail - _currentTableEndTail;
@@ -320,10 +317,10 @@ class Builder {
       // Try to find an existing compatible VTable.
       if (deduplicateTables) {
         // Search backward - more likely to have recently used one
-        for (int i = _vTables.length - 1; i >= 0; i--) {
+        for (var i = _vTables.length - 1; i >= 0; i--) {
-          final int vt2Offset = _vTables[i];
+          final vt2Offset = _vTables[i];
-          final int vt2Start = _buf.lengthInBytes - vt2Offset;
+          final vt2Start = _buf.lengthInBytes - vt2Offset;
-          final int vt2Size = _buf.getUint16(vt2Start, Endian.little);
+          final vt2Size = _buf.getUint16(vt2Start, Endian.little);
 
           if (currentVTable._vTableSize == vt2Size &&
               currentVTable._offsetsMatch(vt2Start, _buf)) {
@@ -354,8 +351,10 @@ class Builder {
   Uint8List get buffer {
     assert(_finished);
     final finishedSize = size();
-    return _buf.buffer
+    return _buf.buffer.asUint8List(
-        .asUint8List(_buf.lengthInBytes - finishedSize, finishedSize);
+      _buf.lengthInBytes - finishedSize,
+      finishedSize,
+    );
   }
 
   /// Finish off the creation of the buffer.  The given [offset] is used as the
@@ -370,16 +369,20 @@ class Builder {
     final finishedSize = size();
     _setUint32AtTail(finishedSize, finishedSize - offset);
     if (fileIdentifier != null) {
-      for (int i = 0; i < 4; i++) {
+      for (var i = 0; i < 4; i++) {
         _setUint8AtTail(
-            finishedSize - _sizeofUint32 - i, fileIdentifier.codeUnitAt(i));
+          finishedSize - _sizeofUint32 - i,
+          fileIdentifier.codeUnitAt(i),
+        );
       }
     }
 
     // zero out the added padding
-    for (var i = sizeBeforePadding + 1;
+    for (
-        i <= finishedSize - requiredBytes;
+      var i = sizeBeforePadding + 1;
-        i++) {
+      i <= finishedSize - requiredBytes;
+      i++
+    ) {
       _setUint8AtTail(i, 0);
     }
     _finished = true;
@@ -390,7 +393,7 @@ class Builder {
   /// Updates the [offset] pointer.  This method is intended for use when writing structs to the buffer.
   void putFloat64(double value) {
     _prepare(_sizeofFloat64, 1);
-    _setFloat32AtTail(_tail, value);
+    _setFloat64AtTail(_tail, value);
   }
 
   /// Writes a Float32 to the tail of the buffer after preparing space for it.
@@ -401,6 +404,15 @@ class Builder {
     _setFloat32AtTail(_tail, value);
   }
 
+  /// Writes a bool to the tail of the buffer after preparing space for it.
+  /// Bools are represented as a Uint8, with the value set to '1' for true, and '0' for false
+  ///
+  /// Updates the [offset] pointer.  This method is intended for use when writing structs to the buffer.
+  void putBool(bool value) {
+    _prepare(_sizeofUint8, 1);
+    _buf.setInt8(_buf.lengthInBytes - _tail, value ? 1 : 0);
+  }
+
   /// Writes a Int64 to the tail of the buffer after preparing space for it.
   ///
   /// Updates the [offset] pointer.  This method is intended for use when writing structs to the buffer.
@@ -495,7 +507,7 @@ class Builder {
   /// Writes a list of Structs to the buffer, returning the offset
   int writeListOfStructs(List<ObjectBuilder> structBuilders) {
     assert(!_inVTable);
-    for (int i = structBuilders.length - 1; i >= 0; i--) {
+    for (var i = structBuilders.length - 1; i >= 0; i--) {
       structBuilders[i].finish(this);
     }
     return endStructVector(structBuilders.length);
@@ -505,11 +517,11 @@ class Builder {
   int writeList(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1 + values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setUint32AtTail(tail, tail - value);
       tail -= _sizeofUint32;
     }
@@ -520,11 +532,11 @@ class Builder {
   int writeListFloat64(List<double> values) {
     assert(!_inVTable);
     _prepare(_sizeofFloat64, values.length, additionalBytes: _sizeofUint32);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (double value in values) {
+    for (final value in values) {
       _setFloat64AtTail(tail, value);
       tail -= _sizeofFloat64;
     }
@@ -535,11 +547,11 @@ class Builder {
   int writeListFloat32(List<double> values) {
     assert(!_inVTable);
     _prepare(_sizeofFloat32, 1 + values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (double value in values) {
+    for (final value in values) {
       _setFloat32AtTail(tail, value);
       tail -= _sizeofFloat32;
     }
@@ -550,11 +562,11 @@ class Builder {
   int writeListInt64(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofInt64, values.length, additionalBytes: _sizeofUint32);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setInt64AtTail(tail, value);
       tail -= _sizeofInt64;
     }
@@ -565,11 +577,11 @@ class Builder {
   int writeListUint64(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint64, values.length, additionalBytes: _sizeofUint32);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setUint64AtTail(tail, value);
       tail -= _sizeofUint64;
     }
@@ -580,11 +592,11 @@ class Builder {
   int writeListInt32(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1 + values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setInt32AtTail(tail, value);
       tail -= _sizeofInt32;
     }
@@ -595,11 +607,11 @@ class Builder {
   int writeListUint32(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1 + values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setUint32AtTail(tail, value);
       tail -= _sizeofUint32;
     }
@@ -610,11 +622,11 @@ class Builder {
   int writeListInt16(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1, additionalBytes: 2 * values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setInt16AtTail(tail, value);
       tail -= _sizeofInt16;
     }
@@ -625,11 +637,11 @@ class Builder {
   int writeListUint16(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1, additionalBytes: 2 * values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setUint16AtTail(tail, value);
       tail -= _sizeofUint16;
     }
@@ -645,11 +657,11 @@ class Builder {
   int writeListInt8(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1, additionalBytes: values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setInt8AtTail(tail, value);
       tail -= _sizeofUint8;
     }
@@ -660,11 +672,11 @@ class Builder {
   int writeListUint8(List<int> values) {
     assert(!_inVTable);
     _prepare(_sizeofUint32, 1, additionalBytes: values.length);
-    final int result = _tail;
+    final result = _tail;
-    int tail = _tail;
+    var tail = _tail;
     _setUint32AtTail(tail, values.length);
     tail -= _sizeofUint32;
-    for (int value in values) {
+    for (final value in values) {
       _setUint8AtTail(tail, value);
       tail -= _sizeofUint8;
     }
@@ -682,8 +694,10 @@ class Builder {
   int writeString(String value, {bool asciiOptimization = false}) {
     assert(!_inVTable);
     if (_strings != null) {
-      return _strings!
+      return _strings!.putIfAbsent(
-          .putIfAbsent(value, () => _writeString(value, asciiOptimization));
+        value,
+        () => _writeString(value, asciiOptimization),
+      );
     } else {
       return _writeString(value, asciiOptimization);
     }
@@ -729,7 +743,7 @@ class Builder {
     _prepare(4, 1, additionalBytes: length + 1);
     _setUint32AtTail(_tail, length);
     var offset = _buf.lengthInBytes - _tail + 4;
-    for (int i = 0; i < length; i++) {
+    for (var i = 0; i < length; i++) {
       _buf.setUint8(offset++, bytes[i]);
     }
     _buf.setUint8(offset, 0); // trailing zero
@@ -756,7 +770,7 @@ class Builder {
   /// Zero-pads the buffer, which may be required for some struct layouts.
   @pragma('vm:prefer-inline')
   void pad(int howManyBytes) {
-    for (int i = 0; i < howManyBytes; i++) {
+    for (var i = 0; i < howManyBytes; i++) {
       putUint8(0);
     }
   }
@@ -772,17 +786,17 @@ class Builder {
       _maxAlign = size;
     }
     // Prepare amount of required space.
-    int dataSize = size * count + additionalBytes;
+    final dataSize = size * count + additionalBytes;
-    int alignDelta = (-(_tail + dataSize)) & (size - 1);
+    final alignDelta = (-(_tail + dataSize)) & (size - 1);
-    int bufSize = alignDelta + dataSize;
+    final bufSize = alignDelta + dataSize;
     // Ensure that we have the required amount of space.
     {
-      int oldCapacity = _buf.lengthInBytes;
+      final oldCapacity = _buf.lengthInBytes;
       if (_tail + bufSize > oldCapacity) {
-        int desiredNewCapacity = (oldCapacity + bufSize) * 2;
+        final desiredNewCapacity = (oldCapacity + bufSize) * 2;
-        int deltaCapacity = desiredNewCapacity - oldCapacity;
+        var deltaCapacity = desiredNewCapacity - oldCapacity;
         deltaCapacity += (-deltaCapacity) & (_maxAlign - 1);
-        int newCapacity = oldCapacity + deltaCapacity;
+        final newCapacity = oldCapacity + deltaCapacity;
         _buf = _allocator.resize(_buf, newCapacity, _tail, 0);
       }
     }
@@ -1000,8 +1014,11 @@ class ListReader<E> extends Reader<List<E>> {
         : List<E>.generate(
             bc.buffer.getUint32(listOffset, Endian.little),
             (int index) => _elementReader.read(
-                bc, listOffset + size + _elementReader.size * index),
+              bc,
-            growable: true);
+              listOffset + size + _elementReader.size * index,
+            ),
+            growable: true,
+          );
   }
 }
 
@@ -1018,22 +1035,22 @@ abstract class Reader<T> {
   /// Read the value of the given [field] in the given [object].
   @pragma('vm:prefer-inline')
   T vTableGet(BufferContext object, int offset, int field, T defaultValue) {
-    int fieldOffset = _vTableFieldOffset(object, offset, field);
+    final fieldOffset = _vTableFieldOffset(object, offset, field);
     return fieldOffset == 0 ? defaultValue : read(object, offset + fieldOffset);
   }
 
   /// Read the value of the given [field] in the given [object].
   @pragma('vm:prefer-inline')
   T? vTableGetNullable(BufferContext object, int offset, int field) {
-    int fieldOffset = _vTableFieldOffset(object, offset, field);
+    final fieldOffset = _vTableFieldOffset(object, offset, field);
     return fieldOffset == 0 ? null : read(object, offset + fieldOffset);
   }
 
   @pragma('vm:prefer-inline')
   int _vTableFieldOffset(BufferContext object, int offset, int field) {
-    int vTableSOffset = object._getInt32(offset);
+    final vTableSOffset = object._getInt32(offset);
-    int vTableOffset = offset - vTableSOffset;
+    final vTableOffset = offset - vTableSOffset;
-    int vTableSize = object._getUint16(vTableOffset);
+    final vTableSize = object._getUint16(vTableOffset);
     if (field >= vTableSize) return 0;
     return object._getUint16(vTableOffset + field);
   }
@@ -1052,9 +1069,9 @@ class StringReader extends Reader<String> {
   @override
   @pragma('vm:prefer-inline')
   String read(BufferContext bc, int offset) {
-    int strOffset = bc.derefObject(offset);
+    final strOffset = bc.derefObject(offset);
-    int length = bc._getUint32(strOffset);
+    final length = bc._getUint32(strOffset);
-    Uint8List bytes = bc._asUint8List(strOffset + _sizeofUint32, length);
+    final bytes = bc._asUint8List(strOffset + _sizeofUint32, length);
     if (asciiOptimization && _isLatin(bytes)) {
       return String.fromCharCodes(bytes);
     }
@@ -1063,8 +1080,8 @@ class StringReader extends Reader<String> {
 
   @pragma('vm:prefer-inline')
   static bool _isLatin(Uint8List bytes) {
-    int length = bytes.length;
+    final length = bytes.length;
-    for (int i = 0; i < length; i++) {
+    for (var i = 0; i < length; i++) {
       if (bytes[i] > 127) {
         return false;
       }
@@ -1099,7 +1116,7 @@ abstract class TableReader<T> extends Reader<T> {
 
   @override
   T read(BufferContext bc, int offset) {
-    int objectOffset = bc.derefObject(offset);
+    final objectOffset = bc.derefObject(offset);
     return createObject(bc, objectOffset);
   }
 }
@@ -1279,13 +1296,13 @@ class _FbGenericList<E> extends _FbList<E> {
   List<E?>? _items;
 
   _FbGenericList(this.elementReader, BufferContext bp, int offset)
-      : super(bp, offset);
+    : super(bp, offset);
 
   @override
   @pragma('vm:prefer-inline')
   E operator [](int i) {
     _items ??= List<E?>.filled(length, null);
-    E? item = _items![i];
+    var item = _items![i];
     if (item == null) {
       item = elementReader.read(bc, offset + 4 + elementReader.size * i);
       _items![i] = item;
@@ -1394,7 +1411,7 @@ class _VTable {
   @pragma('vm:prefer-inline')
   bool _offsetsMatch(int vt2Start, ByteData buf) {
     assert(offsetsComputed);
-    for (int i = 0; i < numFields; i++) {
+    for (var i = 0; i < numFields; i++) {
       if (fieldOffsets[i] !=
           buf.getUint16(vt2Start + _metadataLength + (2 * i), Endian.little)) {
         return false;
@@ -1427,7 +1444,7 @@ class _VTable {
     buf.setUint16(bufOffset, tableSize, Endian.little);
     bufOffset += 2;
     // Field offsets.
-    for (int i = 0; i < numFields; i++) {
+    for (var i = 0; i < numFields; i++) {
       buf.setUint16(bufOffset, fieldOffsets[i], Endian.little);
       bufOffset += 2;
     }
@@ -1449,7 +1466,11 @@ abstract class Allocator {
   /// Params [inUseBack] and [inUseFront] indicate how much of [oldData] is
   /// actually in use at each end, and needs to be copied.
   ByteData resize(
-      ByteData oldData, int newSize, int inUseBack, int inUseFront) {
+    ByteData oldData,
+    int newSize,
+    int inUseBack,
+    int inUseFront,
+  ) {
     final newData = allocate(newSize);
     _copyDownward(oldData, newData, inUseBack, inUseFront);
     deallocate(oldData);
@@ -1460,17 +1481,25 @@ abstract class Allocator {
   /// memory of size [inUseFront] and [inUseBack] will be copied from the front
   /// and back of the old memory allocation.
   void _copyDownward(
-      ByteData oldData, ByteData newData, int inUseBack, int inUseFront) {
+    ByteData oldData,
+    ByteData newData,
+    int inUseBack,
+    int inUseFront,
+  ) {
     if (inUseBack != 0) {
       newData.buffer.asUint8List().setAll(
-          newData.lengthInBytes - inUseBack,
+        newData.lengthInBytes - inUseBack,
-          oldData.buffer.asUint8List().getRange(
+        oldData.buffer.asUint8List().getRange(
-              oldData.lengthInBytes - inUseBack, oldData.lengthInBytes));
+          oldData.lengthInBytes - inUseBack,
+          oldData.lengthInBytes,
+        ),
+      );
     }
     if (inUseFront != 0) {
-      newData.buffer
+      newData.buffer.asUint8List().setAll(
-          .asUint8List()
+        0,
-          .setAll(0, oldData.buffer.asUint8List().getRange(0, inUseFront));
+        oldData.buffer.asUint8List().getRange(0, inUseFront),
+      );
     }
   }
 }

dart/lib/src/builder.dart

@@ -5,7 +5,7 @@ import 'types.dart';
 
 /// The main builder class for creation of a FlexBuffer.
 class Builder {
-  final ByteData _buffer;
+  ByteData _buffer;
   List<_StackValue> _stack = [];
   List<_StackPointer> _stackPointers = [];
   int _offset = 0;
@@ -17,7 +17,7 @@ class Builder {
   final Map<double, _StackValue> _indirectDoubleCache = {};
 
   /// Instantiate the builder if you intent to gradually build up the buffer by calling
-  /// add... methods and calling [finish] to receive the the resulting byte array.
+  /// add... methods and calling [finish] to receive the resulting byte array.
   ///
   /// The default size of internal buffer is set to 2048. Provide a different value in order to avoid buffer copies.
   Builder({int size = 2048}) : _buffer = ByteData(size);
@@ -107,8 +107,11 @@ class Builder {
     final newOffset = _newOffset(length + 1);
     _pushBuffer(utf8String);
     _offset = newOffset;
-    final stackValue =
+    final stackValue = _StackValue.withOffset(
-        _StackValue.withOffset(stringOffset, ValueType.String, bitWidth);
+      stringOffset,
+      ValueType.String,
+      bitWidth,
+    );
     _stack.add(stackValue);
     _stringCache[value] = stackValue;
   }
@@ -128,8 +131,11 @@ class Builder {
     final newOffset = _newOffset(length + 1);
     _pushBuffer(utf8String);
     _offset = newOffset;
-    final stackValue =
+    final stackValue = _StackValue.withOffset(
-        _StackValue.withOffset(keyOffset, ValueType.Key, BitWidth.width8);
+      keyOffset,
+      ValueType.Key,
+      BitWidth.width8,
+    );
     _stack.add(stackValue);
     _keyCache[value] = stackValue;
   }
@@ -147,8 +153,11 @@ class Builder {
     final newOffset = _newOffset(length);
     _pushBuffer(value.asUint8List());
     _offset = newOffset;
-    final stackValue =
+    final stackValue = _StackValue.withOffset(
-        _StackValue.withOffset(blobOffset, ValueType.Blob, bitWidth);
+      blobOffset,
+      ValueType.Blob,
+      bitWidth,
+    );
     _stack.add(stackValue);
   }
 
@@ -170,7 +179,10 @@ class Builder {
     final valueOffset = _offset;
     _pushBuffer(stackValue.asU8List(stackValue.width));
     final stackOffset = _StackValue.withOffset(
-        valueOffset, ValueType.IndirectInt, stackValue.width);
+      valueOffset,
+      ValueType.IndirectInt,
+      stackValue.width,
+    );
     _stack.add(stackOffset);
     _offset = newOffset;
     if (cache) {
@@ -195,7 +207,10 @@ class Builder {
     final valueOffset = _offset;
     _pushBuffer(stackValue.asU8List(stackValue.width));
     final stackOffset = _StackValue.withOffset(
-        valueOffset, ValueType.IndirectFloat, stackValue.width);
+      valueOffset,
+      ValueType.IndirectFloat,
+      stackValue.width,
+    );
     _stack.add(stackOffset);
     _offset = newOffset;
     if (cache) {
@@ -252,9 +267,10 @@ class Builder {
     tmp._offset = _offset;
     tmp._stack = List.from(_stack);
     tmp._stackPointers = List.from(_stackPointers);
-    tmp._buffer.buffer
+    tmp._buffer.buffer.asUint8List().setAll(
-        .asUint8List()
+      0,
-        .setAll(0, _buffer.buffer.asUint8List(0, _offset));
+      _buffer.buffer.asUint8List(0, _offset),
+    );
     for (var i = 0; i < tmp._stackPointers.length; i++) {
       tmp.end();
     }
@@ -271,7 +287,8 @@ class Builder {
     if (_stackPointers.isNotEmpty && _stackPointers.last.isVector == false) {
       if (_stack.last.type != ValueType.Key) {
         throw StateError(
-            'Adding value to a map before adding a key is prohibited');
+          'Adding value to a map before adding a key is prohibited',
+        );
       }
     }
   }
@@ -288,7 +305,8 @@ class Builder {
   void _finish() {
     if (_stack.length != 1) {
       throw StateError(
-          'Stack has to be exactly 1, but is ${_stack.length}. You have to end all started vectors and maps, before calling [finish]');
+        'Stack has to be exactly 1, but is ${_stack.length}. You have to end all started vectors and maps, before calling [finish]',
+      );
     }
     final value = _stack[0];
     final byteWidth = _align(value.elementWidth(_offset, 0));
@@ -298,8 +316,12 @@ class Builder {
     _finished = true;
   }
 
-  _StackValue _createVector(int start, int vecLength, int step,
+  _StackValue _createVector(
-      [_StackValue? keys]) {
+    int start,
+    int vecLength,
+    int step, [
+    _StackValue? keys,
+  ]) {
     var bitWidth = BitWidthUtil.uwidth(vecLength);
     var prefixElements = 1;
     if (keys != null) {
@@ -326,7 +348,8 @@ class Builder {
       }
     }
     final byteWidth = _align(bitWidth);
-    final fix = typed & ValueTypeUtils.isNumber(vectorType) &&
+    final fix =
+        typed & ValueTypeUtils.isNumber(vectorType) &&
         vecLength >= 2 &&
         vecLength <= 4;
     if (keys != null) {
@@ -349,8 +372,10 @@ class Builder {
       return _StackValue.withOffset(vecOffset, ValueType.Map, bitWidth);
     }
     if (typed) {
-      final vType =
+      final vType = ValueTypeUtils.toTypedVector(
-          ValueTypeUtils.toTypedVector(vectorType, fix ? vecLength : 0);
+        vectorType,
+        fix ? vecLength : 0,
+      );
       return _StackValue.withOffset(vecOffset, vType, bitWidth);
     }
     return _StackValue.withOffset(vecOffset, ValueType.Vector, bitWidth);
@@ -366,7 +391,8 @@ class Builder {
   void _sortKeysAndEndMap(_StackPointer pointer) {
     if (((_stack.length - pointer.stackPosition) & 1) == 1) {
       throw StateError(
-          'The stack needs to hold key value pairs (even number of elements). Check if you combined [addKey] with add... method calls properly.');
+        'The stack needs to hold key value pairs (even number of elements). Check if you combined [addKey] with add... method calls properly.',
+      );
     }
 
     var sorted = true;
@@ -412,8 +438,12 @@ class Builder {
       keysStackValue = _createVector(pointer.stackPosition, vecLength, 2);
       _keyVectorCache[keysHash] = keysStackValue;
     }
-    final vec =
+    final vec = _createVector(
-        _createVector(pointer.stackPosition + 1, vecLength, 2, keysStackValue);
+      pointer.stackPosition + 1,
+      vecLength,
+      2,
+      keysStackValue,
+    );
     _stack.removeRange(pointer.stackPosition, _stack.length);
     _stack.add(vec);
   }
@@ -421,7 +451,8 @@ class Builder {
   bool _shouldFlip(_StackValue v1, _StackValue v2) {
     if (v1.type != ValueType.Key || v2.type != ValueType.Key) {
       throw StateError(
-          'Stack values are not keys $v1 | $v2. Check if you combined [addKey] with add... method calls properly.');
+        'Stack values are not keys $v1 | $v2. Check if you combined [addKey] with add... method calls properly.',
+      );
     }
 
     late int c1, c2;
@@ -450,7 +481,8 @@ class Builder {
         _writeUInt(relativeOffset, byteWidth);
       } else {
         throw StateError(
-            'Unexpected size $byteWidth. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new');
+          'Unexpected size $byteWidth. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new',
+        );
       }
     } else {
       _pushBuffer(value.asU8List(BitWidthUtil.fromByteWidth(byteWidth)));
@@ -474,6 +506,7 @@ class Builder {
     if (prevSize < size) {
       final newBuf = ByteData(size);
       newBuf.buffer.asUint8List().setAll(0, _buffer.buffer.asUint8List());
+      _buffer = newBuf;
     }
     return newOffset;
   }
@@ -523,29 +556,27 @@ class _StackValue {
   final ValueType _type;
   final BitWidth _width;
 
-  _StackValue.withNull()
+  _StackValue.withNull() : _type = ValueType.Null, _width = BitWidth.width8;
-      : _type = ValueType.Null,
-        _width = BitWidth.width8;
 
   _StackValue.withInt(int value)
-      : _type = ValueType.Int,
+    : _type = ValueType.Int,
-        _width = BitWidthUtil.width(value),
+      _width = BitWidthUtil.width(value),
-        _value = value;
+      _value = value;
 
   _StackValue.withBool(bool value)
-      : _type = ValueType.Bool,
+    : _type = ValueType.Bool,
-        _width = BitWidth.width8,
+      _width = BitWidth.width8,
-        _value = value;
+      _value = value;
 
   _StackValue.withDouble(double value)
-      : _type = ValueType.Float,
+    : _type = ValueType.Float,
-        _width = BitWidthUtil.width(value),
+      _width = BitWidthUtil.width(value),
-        _value = value;
+      _value = value;
 
   _StackValue.withOffset(int value, ValueType type, BitWidth width)
-      : _offset = value,
+    : _offset = value,
-        _type = type,
+      _type = type,
-        _width = width;
+      _width = width;
 
   BitWidth storedWidth({BitWidth width = BitWidth.width8}) {
     return ValueTypeUtils.isInline(_type)
@@ -562,16 +593,16 @@ class _StackValue {
     final offset = _offset!;
     for (var i = 0; i < 4; i++) {
       final width = 1 << i;
-      final bitWidth = BitWidthUtil.uwidth(size +
+      final bitWidth = BitWidthUtil.uwidth(
-          BitWidthUtil.paddingSize(size, width) +
+        size + BitWidthUtil.paddingSize(size, width) + index * width - offset,
-          index * width -
+      );
-          offset);
       if (1 << bitWidth.index == width) {
         return bitWidth;
       }
     }
     throw StateError(
-        'Element is of unknown. Size: $size at index: $index. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new');
+      'Element is of unknown. Size: $size at index: $index. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new',
+    );
   }
 
   List<int> asU8List(BitWidth width) {
@@ -619,7 +650,8 @@ class _StackValue {
     }
 
     throw StateError(
-        'Unexpected type: $_type. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new');
+      'Unexpected type: $_type. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new',
+    );
   }
 
   ValueType get type {

dart/lib/src/reference.dart

@@ -1,6 +1,7 @@
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:typed_data';
+
 import 'types.dart';
 
 /// Main class to read a value out of a FlexBuffer.
@@ -16,10 +17,15 @@ class Reference {
   int? _length;
 
   Reference._(
-      this._buffer, this._offset, this._parentWidth, int packedType, this._path,
+    this._buffer,
-      [int? byteWidth, ValueType? valueType])
+    this._offset,
-      : _byteWidth = byteWidth ?? 1 << (packedType & 3),
+    this._parentWidth,
-        _valueType = valueType ?? ValueTypeUtils.fromInt(packedType >> 2);
+    int packedType,
+    this._path, [
+    int? byteWidth,
+    ValueType? valueType,
+  ]) : _byteWidth = byteWidth ?? 1 << (packedType & 3),
+       _valueType = valueType ?? ValueTypeUtils.fromInt(packedType >> 2);
 
   /// Use this method to access the root value of a FlexBuffer.
   static Reference fromBuffer(ByteBuffer buffer) {
@@ -31,8 +37,13 @@ class Reference {
     final byteWidth = byteData.getUint8(len - 1);
     final packedType = byteData.getUint8(len - 2);
     final offset = len - byteWidth - 2;
-    return Reference._(ByteData.view(buffer), offset,
+    return Reference._(
-        BitWidthUtil.fromByteWidth(byteWidth), packedType, "/");
+      ByteData.view(buffer),
+      offset,
+      BitWidthUtil.fromByteWidth(byteWidth),
+      packedType,
+      "/",
+    );
   }
 
   /// Returns true if the underlying value is null.
@@ -138,7 +149,8 @@ class Reference {
       final index = key;
       if (index >= length || index < 0) {
         throw ArgumentError(
-            'Key: [$key] is not applicable on: $_path of: $_valueType length: $length');
+          'Key: [$key] is not applicable on: $_path of: $_valueType length: $length',
+        );
       }
       final elementOffset = _indirect + index * _byteWidth;
       int packedType = 0;
@@ -154,13 +166,14 @@ class Reference {
         packedType = _buffer.getUint8(_indirect + length * _byteWidth + index);
       }
       return Reference._(
-          _buffer,
+        _buffer,
-          elementOffset,
+        elementOffset,
-          BitWidthUtil.fromByteWidth(_byteWidth),
+        BitWidthUtil.fromByteWidth(_byteWidth),
-          packedType,
+        packedType,
-          "$_path[$index]",
+        "$_path[$index]",
-          byteWidth,
+        byteWidth,
-          valueType);
+        valueType,
+      );
     }
     if (key is String && _valueType == ValueType.Map) {
       final index = _keyIndex(key);
@@ -169,7 +182,8 @@ class Reference {
       }
     }
     throw ArgumentError(
-        'Key: [$key] is not applicable on: $_path of: $_valueType');
+      'Key: [$key] is not applicable on: $_path of: $_valueType',
+    );
   }
 
   /// Get an iterable if the underlying flexBuffer value is a vector.
@@ -199,7 +213,7 @@ class Reference {
     return _MapValueIterator(this);
   }
 
-  /// Returns the length of the the underlying FlexBuffer value.
+  /// Returns the length of the underlying FlexBuffer value.
   /// If the underlying value is [null] the length is 0.
   /// If the underlying value is a number, or a bool, the length is 1.
   /// If the underlying value is a vector, or map, the length reflects number of elements / element pairs.
@@ -213,18 +227,24 @@ class Reference {
           ValueTypeUtils.isAVector(_valueType) ||
           _valueType == ValueType.Map) {
         _length = _readUInt(
-            _indirect - _byteWidth, BitWidthUtil.fromByteWidth(_byteWidth));
+          _indirect - _byteWidth,
+          BitWidthUtil.fromByteWidth(_byteWidth),
+        );
       } else if (_valueType == ValueType.Null) {
         _length = 0;
       } else if (_valueType == ValueType.String) {
         final indirect = _indirect;
         var sizeByteWidth = _byteWidth;
-        var size = _readUInt(indirect - sizeByteWidth,
+        var size = _readUInt(
-            BitWidthUtil.fromByteWidth(sizeByteWidth));
+          indirect - sizeByteWidth,
+          BitWidthUtil.fromByteWidth(sizeByteWidth),
+        );
         while (_buffer.getInt8(indirect + size) != 0) {
           sizeByteWidth <<= 1;
-          size = _readUInt(indirect - sizeByteWidth,
+          size = _readUInt(
-              BitWidthUtil.fromByteWidth(sizeByteWidth));
+            indirect - sizeByteWidth,
+            BitWidthUtil.fromByteWidth(sizeByteWidth),
+          );
         }
         _length = size;
       } else if (_valueType == ValueType.Key) {
@@ -289,7 +309,8 @@ class Reference {
       return result.toString();
     }
     throw UnsupportedError(
-        'Type: $_valueType is not supported for JSON conversion');
+      'Type: $_valueType is not supported for JSON conversion',
+    );
   }
 
   /// Computes the indirect offset of the value.
@@ -354,10 +375,13 @@ class Reference {
   int? _keyIndex(String key) {
     final input = utf8.encode(key);
     final keysVectorOffset = _indirect - _byteWidth * 3;
-    final indirectOffset = keysVectorOffset -
+    final indirectOffset =
+        keysVectorOffset -
         _readUInt(keysVectorOffset, BitWidthUtil.fromByteWidth(_byteWidth));
     final byteWidth = _readUInt(
-        keysVectorOffset + _byteWidth, BitWidthUtil.fromByteWidth(_byteWidth));
+      keysVectorOffset + _byteWidth,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+    );
     var low = 0;
     var high = length - 1;
     while (low <= high) {
@@ -390,24 +414,37 @@ class Reference {
     final indirect = _indirect;
     final elementOffset = indirect + index * _byteWidth;
     final packedType = _buffer.getUint8(indirect + length * _byteWidth + index);
-    return Reference._(_buffer, elementOffset,
+    return Reference._(
-        BitWidthUtil.fromByteWidth(_byteWidth), packedType, "$_path/$key");
+      _buffer,
+      elementOffset,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+      packedType,
+      "$_path/$key",
+    );
   }
 
   Reference _valueForIndex(int index) {
     final indirect = _indirect;
     final elementOffset = indirect + index * _byteWidth;
     final packedType = _buffer.getUint8(indirect + length * _byteWidth + index);
-    return Reference._(_buffer, elementOffset,
+    return Reference._(
-        BitWidthUtil.fromByteWidth(_byteWidth), packedType, "$_path/[$index]");
+      _buffer,
+      elementOffset,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+      packedType,
+      "$_path/[$index]",
+    );
   }
 
   String _keyForIndex(int index) {
     final keysVectorOffset = _indirect - _byteWidth * 3;
-    final indirectOffset = keysVectorOffset -
+    final indirectOffset =
+        keysVectorOffset -
         _readUInt(keysVectorOffset, BitWidthUtil.fromByteWidth(_byteWidth));
     final byteWidth = _readUInt(
-        keysVectorOffset + _byteWidth, BitWidthUtil.fromByteWidth(_byteWidth));
+      keysVectorOffset + _byteWidth,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+    );
     final keyOffset = indirectOffset + index * byteWidth;
     final keyIndirectOffset =
         keyOffset - _readUInt(keyOffset, BitWidthUtil.fromByteWidth(byteWidth));

dart/lib/src/types.dart

@@ -9,7 +9,7 @@ class BitWidthUtil {
   }
 
   static BitWidth width(num value) {
-    if (value.toInt() == value) {
+    if (value is int) {
       var v = value.toInt().abs();
       if (v >> 7 == 0) return BitWidth.width8;
       if (v >> 15 == 0) return BitWidth.width16;
@@ -86,7 +86,8 @@ enum ValueType {
   VectorFloat,
   VectorKey,
   @Deprecated(
-      'VectorString is deprecated due to a flaw in the binary format (https://github.com/google/flatbuffers/issues/5627)')
+    'VectorString is deprecated due to a flaw in the binary format (https://github.com/google/flatbuffers/issues/5627)',
+  )
   VectorString,
   VectorInt2,
   VectorUInt2,
@@ -99,7 +100,7 @@ enum ValueType {
   VectorFloat4,
   Blob,
   Bool,
-  VectorBool
+  VectorBool,
 }
 
 class ValueTypeUtils {
@@ -153,31 +154,37 @@ class ValueTypeUtils {
   static ValueType toTypedVector(ValueType self, int length) {
     if (length == 0) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt),
+      );
     }
     if (length == 2) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt2));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt2),
+      );
     }
     if (length == 3) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt3));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt3),
+      );
     }
     if (length == 4) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt4));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt4),
+      );
     }
     throw Exception('unexpected length ' + length.toString());
   }
 
   static ValueType typedVectorElementType(ValueType self) {
     return ValueTypeUtils.fromInt(
-        toInt(self) - toInt(ValueType.VectorInt) + toInt(ValueType.Int));
+      toInt(self) - toInt(ValueType.VectorInt) + toInt(ValueType.Int),
+    );
   }
 
   static ValueType fixedTypedVectorElementType(ValueType self) {
     return ValueTypeUtils.fromInt(
-        (toInt(self) - toInt(ValueType.VectorInt2)) % 3 + toInt(ValueType.Int));
+      (toInt(self) - toInt(ValueType.VectorInt2)) % 3 + toInt(ValueType.Int),
+    );
   }
 
   static int fixedTypedVectorElementSize(ValueType self) {

dart/pubspec.yaml

@@ -1,15 +1,14 @@
 name: flat_buffers
-version: 2.0.0
+version: 25.12.19
 description: FlatBuffers reading and writing library for Dart. Based on original work by Konstantin Scheglov and Paul Berry of the Dart SDK team.
 homepage: https://github.com/google/flatbuffers
 documentation: https://google.github.io/flatbuffers/index.html
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.17.0 <4.0.0'
 
 dev_dependencies:
   test: ^1.17.7
   test_reflective_loader: ^0.2.0
   path: ^1.8.0
   lints: ^1.0.1
-

dart/test/bool_structs.fbs

@@ -0,0 +1,10 @@
+// Test for #7355
+table Foo {
+  my_foo : foo_properties;
+}
+
+struct foo_properties
+{
+    a : bool;
+    b : bool;
+}

dart/test/bool_structs_generated.dart

@@ -0,0 +1,195 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
+
+import 'dart:typed_data' show Uint8List;
+
+import 'package:flat_buffers/flat_buffers.dart' as fb;
+
+class Foo {
+  Foo._(this._bc, this._bcOffset);
+  factory Foo(List<int> bytes) {
+    final rootRef = fb.BufferContext.fromBytes(bytes);
+    return reader.read(rootRef, 0);
+  }
+
+  static const fb.Reader<Foo> reader = _FooReader();
+
+  final fb.BufferContext _bc;
+  final int _bcOffset;
+
+  FooProperties? get myFoo =>
+      FooProperties.reader.vTableGetNullable(_bc, _bcOffset, 4);
+
+  @override
+  String toString() {
+    return 'Foo{myFoo: ${myFoo}}';
+  }
+
+  FooT unpack() => FooT(myFoo: myFoo?.unpack());
+
+  static int pack(fb.Builder fbBuilder, FooT? object) {
+    if (object == null) return 0;
+    return object.pack(fbBuilder);
+  }
+}
+
+class FooT implements fb.Packable {
+  FooPropertiesT? myFoo;
+
+  FooT({this.myFoo});
+
+  @override
+  int pack(fb.Builder fbBuilder) {
+    fbBuilder.startTable(1);
+    if (myFoo != null) {
+      fbBuilder.addStruct(0, myFoo!.pack(fbBuilder));
+    }
+    return fbBuilder.endTable();
+  }
+
+  @override
+  String toString() {
+    return 'FooT{myFoo: ${myFoo}}';
+  }
+}
+
+class _FooReader extends fb.TableReader<Foo> {
+  const _FooReader();
+
+  @override
+  Foo createObject(fb.BufferContext bc, int offset) => Foo._(bc, offset);
+}
+
+class FooBuilder {
+  FooBuilder(this.fbBuilder);
+
+  final fb.Builder fbBuilder;
+
+  void begin() {
+    fbBuilder.startTable(1);
+  }
+
+  int addMyFoo(int offset) {
+    fbBuilder.addStruct(0, offset);
+    return fbBuilder.offset;
+  }
+
+  int finish() {
+    return fbBuilder.endTable();
+  }
+}
+
+class FooObjectBuilder extends fb.ObjectBuilder {
+  final FooPropertiesObjectBuilder? _myFoo;
+
+  FooObjectBuilder({FooPropertiesObjectBuilder? myFoo}) : _myFoo = myFoo;
+
+  /// Finish building, and store into the [fbBuilder].
+  @override
+  int finish(fb.Builder fbBuilder) {
+    fbBuilder.startTable(1);
+    if (_myFoo != null) {
+      fbBuilder.addStruct(0, _myFoo!.finish(fbBuilder));
+    }
+    return fbBuilder.endTable();
+  }
+
+  /// Convenience method to serialize to byte list.
+  @override
+  Uint8List toBytes([String? fileIdentifier]) {
+    final fbBuilder = fb.Builder(deduplicateTables: false);
+    fbBuilder.finish(finish(fbBuilder), fileIdentifier);
+    return fbBuilder.buffer;
+  }
+}
+
+class FooProperties {
+  FooProperties._(this._bc, this._bcOffset);
+
+  static const fb.Reader<FooProperties> reader = _FooPropertiesReader();
+
+  final fb.BufferContext _bc;
+  final int _bcOffset;
+
+  bool get a => const fb.BoolReader().read(_bc, _bcOffset + 0);
+  bool get b => const fb.BoolReader().read(_bc, _bcOffset + 1);
+
+  @override
+  String toString() {
+    return 'FooProperties{a: ${a}, b: ${b}}';
+  }
+
+  FooPropertiesT unpack() => FooPropertiesT(a: a, b: b);
+
+  static int pack(fb.Builder fbBuilder, FooPropertiesT? object) {
+    if (object == null) return 0;
+    return object.pack(fbBuilder);
+  }
+}
+
+class FooPropertiesT implements fb.Packable {
+  bool a;
+  bool b;
+
+  FooPropertiesT({required this.a, required this.b});
+
+  @override
+  int pack(fb.Builder fbBuilder) {
+    fbBuilder.putBool(b);
+    fbBuilder.putBool(a);
+    return fbBuilder.offset;
+  }
+
+  @override
+  String toString() {
+    return 'FooPropertiesT{a: ${a}, b: ${b}}';
+  }
+}
+
+class _FooPropertiesReader extends fb.StructReader<FooProperties> {
+  const _FooPropertiesReader();
+
+  @override
+  int get size => 2;
+
+  @override
+  FooProperties createObject(fb.BufferContext bc, int offset) =>
+      FooProperties._(bc, offset);
+}
+
+class FooPropertiesBuilder {
+  FooPropertiesBuilder(this.fbBuilder);
+
+  final fb.Builder fbBuilder;
+
+  int finish(bool a, bool b) {
+    fbBuilder.putBool(b);
+    fbBuilder.putBool(a);
+    return fbBuilder.offset;
+  }
+}
+
+class FooPropertiesObjectBuilder extends fb.ObjectBuilder {
+  final bool _a;
+  final bool _b;
+
+  FooPropertiesObjectBuilder({required bool a, required bool b})
+    : _a = a,
+      _b = b;
+
+  /// Finish building, and store into the [fbBuilder].
+  @override
+  int finish(fb.Builder fbBuilder) {
+    fbBuilder.putBool(_b);
+    fbBuilder.putBool(_a);
+    return fbBuilder.offset;
+  }
+
+  /// Convenience method to serialize to byte list.
+  @override
+  Uint8List toBytes([String? fileIdentifier]) {
+    final fbBuilder = fb.Builder(deduplicateTables: false);
+    fbBuilder.finish(finish(fbBuilder), fileIdentifier);
+    return fbBuilder.buffer;
+  }
+}

dart/test/enums.fbs

@@ -0,0 +1,10 @@
+enum OptionsEnum : uint32
+{
+    A = 1,
+    B = 2,
+    C = 3
+}
+
+table MyTable {
+    options : [OptionsEnum];
+}

dart/test/enums_generated.dart

@@ -0,0 +1,153 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
+
+import 'dart:typed_data' show Uint8List;
+
+import 'package:flat_buffers/flat_buffers.dart' as fb;
+
+enum OptionsEnum {
+  A(1),
+  B(2),
+  C(3);
+
+  final int value;
+  const OptionsEnum(this.value);
+
+  factory OptionsEnum.fromValue(int value) {
+    switch (value) {
+      case 1:
+        return OptionsEnum.A;
+      case 2:
+        return OptionsEnum.B;
+      case 3:
+        return OptionsEnum.C;
+      default:
+        throw StateError('Invalid value $value for bit flag enum');
+    }
+  }
+
+  static OptionsEnum? _createOrNull(int? value) =>
+      value == null ? null : OptionsEnum.fromValue(value);
+
+  static const int minValue = 1;
+  static const int maxValue = 3;
+  static const fb.Reader<OptionsEnum> reader = _OptionsEnumReader();
+}
+
+class _OptionsEnumReader extends fb.Reader<OptionsEnum> {
+  const _OptionsEnumReader();
+
+  @override
+  int get size => 4;
+
+  @override
+  OptionsEnum read(fb.BufferContext bc, int offset) =>
+      OptionsEnum.fromValue(const fb.Uint32Reader().read(bc, offset));
+}
+
+class MyTable {
+  MyTable._(this._bc, this._bcOffset);
+  factory MyTable(List<int> bytes) {
+    final rootRef = fb.BufferContext.fromBytes(bytes);
+    return reader.read(rootRef, 0);
+  }
+
+  static const fb.Reader<MyTable> reader = _MyTableReader();
+
+  final fb.BufferContext _bc;
+  final int _bcOffset;
+
+  List<OptionsEnum>? get options => const fb.ListReader<OptionsEnum>(
+    OptionsEnum.reader,
+  ).vTableGetNullable(_bc, _bcOffset, 4);
+
+  @override
+  String toString() {
+    return 'MyTable{options: ${options}}';
+  }
+
+  MyTableT unpack() => MyTableT(
+    options: const fb.ListReader<OptionsEnum>(
+      OptionsEnum.reader,
+      lazy: false,
+    ).vTableGetNullable(_bc, _bcOffset, 4),
+  );
+
+  static int pack(fb.Builder fbBuilder, MyTableT? object) {
+    if (object == null) return 0;
+    return object.pack(fbBuilder);
+  }
+}
+
+class MyTableT implements fb.Packable {
+  List<OptionsEnum>? options;
+
+  MyTableT({this.options});
+
+  @override
+  int pack(fb.Builder fbBuilder) {
+    final int? optionsOffset = options == null
+        ? null
+        : fbBuilder.writeListUint32(options!.map((f) => f.value).toList());
+    fbBuilder.startTable(1);
+    fbBuilder.addOffset(0, optionsOffset);
+    return fbBuilder.endTable();
+  }
+
+  @override
+  String toString() {
+    return 'MyTableT{options: ${options}}';
+  }
+}
+
+class _MyTableReader extends fb.TableReader<MyTable> {
+  const _MyTableReader();
+
+  @override
+  MyTable createObject(fb.BufferContext bc, int offset) =>
+      MyTable._(bc, offset);
+}
+
+class MyTableBuilder {
+  MyTableBuilder(this.fbBuilder);
+
+  final fb.Builder fbBuilder;
+
+  void begin() {
+    fbBuilder.startTable(1);
+  }
+
+  int addOptionsOffset(int? offset) {
+    fbBuilder.addOffset(0, offset);
+    return fbBuilder.offset;
+  }
+
+  int finish() {
+    return fbBuilder.endTable();
+  }
+}
+
+class MyTableObjectBuilder extends fb.ObjectBuilder {
+  final List<OptionsEnum>? _options;
+
+  MyTableObjectBuilder({List<OptionsEnum>? options}) : _options = options;
+
+  /// Finish building, and store into the [fbBuilder].
+  @override
+  int finish(fb.Builder fbBuilder) {
+    final int? optionsOffset = _options == null
+        ? null
+        : fbBuilder.writeListUint32(_options!.map((f) => f.value).toList());
+    fbBuilder.startTable(1);
+    fbBuilder.addOffset(0, optionsOffset);
+    return fbBuilder.endTable();
+  }
+
+  /// Convenience method to serialize to byte list.
+  @override
+  Uint8List toBytes([String? fileIdentifier]) {
+    final fbBuilder = fb.Builder(deduplicateTables: false);
+    fbBuilder.finish(finish(fbBuilder), fileIdentifier);
+    return fbBuilder.buffer;
+  }
+}

dart/test/flat_buffers_test.dart

@@ -1,18 +1,15 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:typed_data';
 import 'dart:io' as io;
-
+import 'dart:typed_data';
-import 'package:path/path.dart' as path;
 
 import 'package:flat_buffers/flat_buffers.dart';
+import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import './monster_test_my_game.example_generated.dart' as example;
+import './bool_structs_generated.dart' as example4;
 import './monster_test_my_game.example2_generated.dart' as example2;
+import './monster_test_my_game.example_generated.dart' as example;
+import 'enums_generated.dart' as example3;
 
 main() {
   defineReflectiveSuite(() {
@@ -20,6 +17,7 @@ main() {
     defineReflectiveTests(ObjectAPITest);
     defineReflectiveTests(CheckOtherLangaugesData);
     defineReflectiveTests(GeneratorTest);
+    defineReflectiveTests(ListOfEnumsTest);
   });
 }
 
@@ -30,11 +28,9 @@ int indexToField(int index) {
 @reflectiveTest
 class CheckOtherLangaugesData {
   test_cppData() async {
-    List<int> data = await io.File(path.join(
+    List<int> data = await io.File(
-      path.context.current,
+      path.join(path.context.current, 'test', 'monsterdata_test.mon'),
-      'test',
+    ).readAsBytes();
-      'monsterdata_test.mon',
-    )).readAsBytes();
     example.Monster mon = example.Monster(data);
     expect(mon.hp, 80);
     expect(mon.mana, 150);
@@ -64,11 +60,11 @@ class CheckOtherLangaugesData {
     expect(
       mon.toString(),
       'Monster{'
-      'pos: Vec3{x: 1.0, y: 2.0, z: 3.0, test1: 3.0, test2: Color{value: 2}, test3: Test{a: 5, b: 6}}, '
+      'pos: Vec3{x: 1.0, y: 2.0, z: 3.0, test1: 3.0, test2: Color.Green, test3: Test{a: 5, b: 6}}, '
       'mana: 150, hp: 80, name: MyMonster, inventory: [0, 1, 2, 3, 4], '
-      'color: Color{value: 8}, testType: AnyTypeId{value: 1}, '
+      'color: Color.Blue, testType: AnyTypeId.Monster, '
       'test: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
-      'inventory: null, color: Color{value: 8}, testType: null, '
+      'inventory: null, color: Color.Blue, testType: null, '
       'test: null, test4: null, testarrayofstring: null, '
       'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
       'testempty: null, testbool: false, testhashs32Fnv1: 0, '
@@ -83,12 +79,18 @@ class CheckOtherLangaugesData {
       'coOwningReference: 0, vectorOfCoOwningReferences: null, '
       'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
       'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
-      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race{value: -1}, '
+      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
-      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null}, '
+      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
+      'nativeInline: null, '
+      'longEnumNonEnumDefault: LongEnum._default, '
+      'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
       'test4: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
       'testarrayofstring: [test1, test2], testarrayoftables: null, '
       'enemy: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
-      'inventory: null, color: Color{value: 8}, testType: null, '
+      'inventory: null, color: Color.Blue, testType: null, '
       'test: null, test4: null, testarrayofstring: null, '
       'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
       'testempty: null, testbool: false, testhashs32Fnv1: 0, '
@@ -103,8 +105,14 @@ class CheckOtherLangaugesData {
       'coOwningReference: 0, vectorOfCoOwningReferences: null, '
       'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
       'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
-      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race{value: -1}, '
+      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
-      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null}, '
+      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
+      'nativeInline: null, '
+      'longEnumNonEnumDefault: LongEnum._default, '
+      'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
       'testnestedflatbuffer: null, testempty: null, testbool: true, '
       'testhashs32Fnv1: -579221183, testhashu32Fnv1: 3715746113, '
       'testhashs64Fnv1: 7930699090847568257, '
@@ -126,9 +134,15 @@ class CheckOtherLangaugesData {
       'vectorOfNonOwningReferences: null, '
       'anyUniqueType: null, anyUnique: null, '
       'anyAmbiguousType: null, '
-      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race{value: -1}, '
+      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
       'testrequirednestedflatbuffer: null, scalarKeySortedTables: [Stat{id: '
-      'miss, val: 0, count: 0}, Stat{id: hit, val: 10, count: 1}]}',
+      'miss, val: 0, count: 0}, Stat{id: hit, val: 10, count: 1}], '
+      'nativeInline: Test{a: 1, b: 2}, '
+      'longEnumNonEnumDefault: LongEnum._default, '
+      'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}',
     );
   }
 }
@@ -199,6 +213,10 @@ class BuilderTest {
       ..addTestarrayofstringOffset(testArrayOfString);
     final mon = monBuilder.finish();
     fbBuilder.finish(mon);
+
+    final mon3 = example.Monster(fbBuilder.buffer);
+    expect(mon3.name, 'MyMonster');
+    expect(mon3.pos!.test1, 3.0);
   }
 
   void test_error_addInt32_withoutStartTable([Builder? builder]) {
@@ -278,20 +296,72 @@ class BuilderTest {
     expect(allocator.buffer(builder.size()), [2, 0, 0, 0, 0, 0, 0, 1]);
 
     builder.putUint8(3);
-    expect(
+    expect(allocator.buffer(builder.size()), [
-        allocator.buffer(builder.size()), [0, 0, 0, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      0,
+      0,
+      0,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
 
     builder.putUint8(4);
-    expect(
+    expect(allocator.buffer(builder.size()), [
-        allocator.buffer(builder.size()), [0, 0, 4, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      0,
+      0,
+      4,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
 
     builder.putUint8(5);
-    expect(
+    expect(allocator.buffer(builder.size()), [
-        allocator.buffer(builder.size()), [0, 5, 4, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      0,
+      5,
+      4,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
 
     builder.putUint32(6);
-    expect(allocator.buffer(builder.size()),
+    expect(allocator.buffer(builder.size()), [
-        [6, 0, 0, 0, 0, 5, 4, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      6,
+      0,
+      0,
+      0,
+      0,
+      5,
+      4,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
   }
 
   void test_table_default() {
@@ -311,14 +381,14 @@ class BuilderTest {
     int objectOffset = buffer.derefObject(0);
     // was not written, so uses the new default value
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGet(buffer, objectOffset, indexToField(0), 15),
-            .vTableGet(buffer, objectOffset, indexToField(0), 15),
+      15,
-        15);
+    );
     // has the written value
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGet(buffer, objectOffset, indexToField(1), 15),
-            .vTableGet(buffer, objectOffset, indexToField(1), 15),
+      20,
-        20);
+    );
   }
 
   void test_table_format([Builder? builder]) {
@@ -350,7 +420,9 @@ class BuilderTest {
     for (int i = 0; i < 3; i++) {
       int offset = byteData.getUint16(vTableLoc + 4 + 2 * i, Endian.little);
       expect(
-          byteData.getInt32(tableDataLoc + offset, Endian.little), 10 + 10 * i);
+        byteData.getInt32(tableDataLoc + offset, Endian.little),
+        10 + 10 * i,
+      );
     }
   }
 
@@ -360,10 +432,14 @@ class BuilderTest {
     List<int> byteList;
     {
       Builder builder = Builder(initialSize: 0);
-      int? latinStringOffset =
+      int? latinStringOffset = builder.writeString(
-          builder.writeString(latinString, asciiOptimization: true);
+        latinString,
-      int? unicodeStringOffset =
+        asciiOptimization: true,
-          builder.writeString(unicodeString, asciiOptimization: true);
+      );
+      int? unicodeStringOffset = builder.writeString(
+        unicodeString,
+        asciiOptimization: true,
+      );
       builder.startTable(2);
       builder.addOffset(0, latinStringOffset);
       builder.addOffset(1, unicodeStringOffset);
@@ -375,13 +451,19 @@ class BuilderTest {
     BufferContext buf = BufferContext.fromBytes(byteList);
     int objectOffset = buf.derefObject(0);
     expect(
-        const StringReader()
+      const StringReader().vTableGetNullable(
-            .vTableGetNullable(buf, objectOffset, indexToField(0)),
+        buf,
-        latinString);
+        objectOffset,
+        indexToField(0),
+      ),
+      latinString,
+    );
     expect(
-        const StringReader(asciiOptimization: true)
+      const StringReader(
-            .vTableGetNullable(buf, objectOffset, indexToField(1)),
+        asciiOptimization: true,
-        unicodeString);
+      ).vTableGetNullable(buf, objectOffset, indexToField(1)),
+      unicodeString,
+    );
   }
 
   void test_table_types([Builder? builder]) {
@@ -405,33 +487,41 @@ class BuilderTest {
     BufferContext buf = BufferContext.fromBytes(byteList);
     int objectOffset = buf.derefObject(0);
     expect(
-        const BoolReader()
+      const BoolReader().vTableGetNullable(buf, objectOffset, indexToField(0)),
-            .vTableGetNullable(buf, objectOffset, indexToField(0)),
+      true,
-        true);
+    );
     expect(
-        const Int8Reader()
+      const Int8Reader().vTableGetNullable(buf, objectOffset, indexToField(1)),
-            .vTableGetNullable(buf, objectOffset, indexToField(1)),
+      10,
-        10);
+    );
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGetNullable(buf, objectOffset, indexToField(2)),
-            .vTableGetNullable(buf, objectOffset, indexToField(2)),
+      20,
-        20);
+    );
     expect(
-        const StringReader()
+      const StringReader().vTableGetNullable(
-            .vTableGetNullable(buf, objectOffset, indexToField(3)),
+        buf,
-        '12345');
+        objectOffset,
+        indexToField(3),
+      ),
+      '12345',
+    );
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGetNullable(buf, objectOffset, indexToField(4)),
-            .vTableGetNullable(buf, objectOffset, indexToField(4)),
+      40,
-        40);
+    );
     expect(
-        const Uint32Reader()
+      const Uint32Reader().vTableGetNullable(
-            .vTableGetNullable(buf, objectOffset, indexToField(5)),
+        buf,
-        0x9ABCDEF0);
+        objectOffset,
+        indexToField(5),
+      ),
+      0x9ABCDEF0,
+    );
     expect(
-        const Uint8Reader()
+      const Uint8Reader().vTableGetNullable(buf, objectOffset, indexToField(6)),
-            .vTableGetNullable(buf, objectOffset, indexToField(6)),
+      0x9A,
-        0x9A);
+    );
   }
 
   void test_writeList_of_Uint32() {
@@ -576,8 +666,9 @@ class BuilderTest {
     }
     // read and verify
     BufferContext buf = BufferContext.fromBytes(byteList);
-    List<TestPointImpl> items =
+    List<TestPointImpl> items = const ListReader<TestPointImpl>(
-        const ListReader<TestPointImpl>(TestPointReader()).read(buf, 0);
+      TestPointReader(),
+    ).read(buf, 0);
     expect(items, hasLength(2));
     expect(items[0].x, 10);
     expect(items[0].y, 20);
@@ -607,8 +698,10 @@ class BuilderTest {
     List<int> byteList;
     {
       builder ??= Builder(initialSize: 0);
-      int listOffset = builder.writeList(
+      int listOffset = builder.writeList([
-          [builder.writeString('12345'), builder.writeString('ABC')]);
+        builder.writeString('12345'),
+        builder.writeString('ABC'),
+      ]);
       builder.startTable(1);
       builder.addOffset(0, listOffset);
       int offset = builder.endTable();
@@ -687,13 +780,14 @@ class BuilderTest {
       test_table_format,
       test_table_types,
       test_writeList_ofObjects,
-      test_writeList_ofStrings_inObject
+      test_writeList_ofStrings_inObject,
     ];
 
     // Execute all test cases in all permutations of their order.
     // To do that, we generate permutations of test case indexes.
-    final testCasesPermutations =
+    final testCasesPermutations = _permutationsOf(
-        _permutationsOf(List.generate(testCases.length, (index) => index));
+      List.generate(testCases.length, (index) => index),
+    );
     expect(testCasesPermutations.length, _factorial(testCases.length));
 
     for (var indexes in testCasesPermutations) {
@@ -751,7 +845,6 @@ class BuilderTest {
 class ObjectAPITest {
   void test_tableStat() {
     final object1 = example.StatT(count: 3, id: "foo", val: 4);
-    expect(object1 is Packable, isTrue);
     final fbb = Builder();
     fbb.finish(object1.pack(fbb));
     final object2 = example.Stat(fbb.buffer).unpack();
@@ -764,28 +857,28 @@ class ObjectAPITest {
   void test_tableMonster() {
     final monster = example.MonsterT()
       ..pos = example.Vec3T(
-          x: 1,
+        x: 1,
-          y: 2,
+        y: 2,
-          z: 3,
+        z: 3,
-          test1: 4.0,
+        test1: 4.0,
-          test2: example.Color.Red,
+        test2: example.Color.Red,
-          test3: example.TestT(a: 1, b: 2))
+        test3: example.TestT(a: 1, b: 2),
+      )
       ..mana = 2
       ..name = 'Monstrous'
       ..inventory = [24, 42]
       ..color = example.Color.Green
-      // TODO be smarter for unions and automatically set the `type` field?
       ..testType = example.AnyTypeId.MyGame_Example2_Monster
       ..test = example2.MonsterT()
       ..test4 = [example.TestT(a: 3, b: 4), example.TestT(a: 5, b: 6)]
       ..testarrayofstring = ["foo", "bar"]
-      ..testarrayoftables = [example.MonsterT(name: 'Oof')]
+      ..testarrayoftables = [example.MonsterT(name: 'Oof', testf: 2.75)]
-      ..enemy = example.MonsterT(name: 'Enemy')
+      ..enemy = example.MonsterT(name: 'Enemy', testf: 2.5)
       ..testarrayofbools = [false, true, false]
-      ..testf = 42.24
+      ..testf = 42.25
       ..testarrayofsortedstruct = [
         example.AbilityT(id: 1, distance: 5),
-        example.AbilityT(id: 3, distance: 7)
+        example.AbilityT(id: 3, distance: 7),
       ]
       ..vectorOfLongs = [5, 6, 7]
       ..vectorOfDoubles = [8.9, 9.0, 10.1, 11.2]
@@ -800,16 +893,15 @@ class ObjectAPITest {
     fbBuilder.finish(offset);
     final data = fbBuilder.buffer;
 
-    // TODO currently broken because of struct builder issue, see #6688
+    final monster2 = example.Monster(data); // Monster (reader)
-    // final monster2 = example.Monster(data); // Monster (reader)
+    expect(
-    // expect(
+        // map Monster => MonsterT, Vec3 => Vec3T, ...
-    //     // map Monster => MonsterT, Vec3 => Vec3T, ...
+        monster2.toString().replaceAllMapped(
-    //     monster2.toString().replaceAllMapped(
+            RegExp('([a-zA-z0-9]+){'), (match) => match.group(1)! + 'T{'),
-    //         RegExp('([a-zA-z0-9]+){'), (match) => match.group(1) + 'T{'),
+        monster.toString());
-    //     monster.toString());
+
-    //
+    final monster3 = monster2.unpack(); // MonsterT
-    // final monster3 = monster2.unpack(); // MonsterT
+    expect(monster3.toString(), monster.toString());
-    // expect(monster3.toString(), monster.toString());
   }
 
   void test_Lists() {
@@ -848,8 +940,9 @@ class StringListWrapperImpl {
 
   StringListWrapperImpl(this.bp, this.offset);
 
-  List<String>? get items => const ListReader<String>(StringReader())
+  List<String>? get items => const ListReader<String>(
-      .vTableGetNullable(bp, offset, indexToField(0));
+    StringReader(),
+  ).vTableGetNullable(bp, offset, indexToField(0));
 }
 
 class StringListWrapperReader extends TableReader<StringListWrapperImpl> {
@@ -887,9 +980,45 @@ class GeneratorTest {
     expect(example.Color.values, same(example.Color.values));
     expect(example.Race.values, same(example.Race.values));
     expect(example.AnyTypeId.values, same(example.AnyTypeId.values));
-    expect(example.AnyUniqueAliasesTypeId.values,
+    expect(
-        same(example.AnyUniqueAliasesTypeId.values));
+      example.AnyUniqueAliasesTypeId.values,
-    expect(example.AnyAmbiguousAliasesTypeId.values,
+      same(example.AnyUniqueAliasesTypeId.values),
-        same(example.AnyAmbiguousAliasesTypeId.values));
+    );
+    expect(
+      example.AnyAmbiguousAliasesTypeId.values,
+      same(example.AnyAmbiguousAliasesTypeId.values),
+    );
+  }
+}
+
+// See #6869
+@reflectiveTest
+class ListOfEnumsTest {
+  void test_listOfEnums() async {
+    var mytable = example3.MyTableObjectBuilder(
+      options: [
+        example3.OptionsEnum.A,
+        example3.OptionsEnum.B,
+        example3.OptionsEnum.C,
+      ],
+    );
+    var bytes = mytable.toBytes();
+    var mytable_read = example3.MyTable(bytes);
+    expect(mytable_read.options![0].value, example3.OptionsEnum.A.value);
+    expect(mytable_read.options![1].value, example3.OptionsEnum.B.value);
+    expect(mytable_read.options![2].value, example3.OptionsEnum.C.value);
+  }
+}
+
+@reflectiveTest
+class BoolInStructTest {
+  void test_boolInStruct() async {
+    var mystruct = example4.FooObjectBuilder(
+      myFoo: example4.FooPropertiesObjectBuilder(a: true, b: false),
+    );
+    var bytes = mystruct.toBytes();
+    var mystruct_read = example4.Foo(bytes);
+    expect(mystruct_read.myFoo!.a, true);
+    expect(mystruct_read.myFoo!.b, false);
   }
 }

dart/test/flex_builder_test.dart

@@ -40,6 +40,10 @@ void main() {
       flx.addInt(-1025);
       expect(flx.finish(), [255, 251, 5, 2]);
     }
+    {
+      var builder = Builder()..addDouble(1.0);
+      expect(builder.finish(), [0, 0, 128, 63, 14, 4]);
+    }
     {
       var flx = Builder();
       flx.addDouble(0.1);
@@ -58,8 +62,23 @@ void main() {
     {
       var flx = Builder();
       flx.addString('hello 😱');
-      expect(flx.finish(),
+      expect(flx.finish(), [
-          [10, 104, 101, 108, 108, 111, 32, 240, 159, 152, 177, 0, 11, 20, 1]);
+        10,
+        104,
+        101,
+        108,
+        108,
+        111,
+        32,
+        240,
+        159,
+        152,
+        177,
+        0,
+        11,
+        20,
+        1,
+      ]);
     }
   });
 
@@ -113,7 +132,7 @@ void main() {
         192,
         16,
         75,
-        1
+        1,
       ]);
     }
     {
@@ -173,7 +192,7 @@ void main() {
         7,
         3,
         60,
-        1
+        1,
       ]);
     }
     {
@@ -211,7 +230,7 @@ void main() {
         10,
         6,
         60,
-        1
+        1,
       ]);
     }
     {
@@ -296,9 +315,24 @@ void main() {
         104,
         45,
         43,
-        1
+        1,
       ]);
     }
+    {
+      // Default buffer is 2048 bytes, add 2300 bytes of strings that force it
+      // to grow.
+      final s1 = 'A' * 1000;
+      final s2 = 'B' * 800;
+      final s3 = 'C' * 500;
+
+      var flx = Builder()
+        ..startVector()
+        ..addString(s1)
+        ..addString(s2)
+        ..addString(s3)
+        ..end();
+      expect(flx.finish().length, 2323);
+    }
   });
 
   test('build map', () {
@@ -318,8 +352,24 @@ void main() {
         ..addKey('')
         ..addInt(45)
         ..end();
-      expect(
+      expect(flx.finish(), [
-          flx.finish(), [97, 0, 0, 2, 2, 5, 2, 1, 2, 45, 12, 4, 4, 4, 36, 1]);
+        97,
+        0,
+        0,
+        2,
+        2,
+        5,
+        2,
+        1,
+        2,
+        45,
+        12,
+        4,
+        4,
+        4,
+        36,
+        1,
+      ]);
     }
     {
       var flx = Builder()
@@ -363,7 +413,7 @@ void main() {
         36,
         4,
         40,
-        1
+        1,
       ]);
     }
   });
@@ -377,133 +427,152 @@ void main() {
 
   test('build from object', () {
     expect(
-        Builder.buildFromObject(Uint8List.fromList([1, 2, 3]).buffer)
+      Builder.buildFromObject(
-            .asUint8List(),
+        Uint8List.fromList([1, 2, 3]).buffer,
-        [3, 1, 2, 3, 3, 100, 1]);
+      ).asUint8List(),
+      [3, 1, 2, 3, 3, 100, 1],
+    );
     expect(Builder.buildFromObject(null).asUint8List(), [0, 0, 1]);
     expect(Builder.buildFromObject(true).asUint8List(), [1, 104, 1]);
     expect(Builder.buildFromObject(false).asUint8List(), [0, 104, 1]);
     expect(Builder.buildFromObject(25).asUint8List(), [25, 4, 1]);
     expect(Builder.buildFromObject(-250).asUint8List(), [6, 255, 5, 2]);
+    expect(Builder.buildFromObject(-2.50).asUint8List(), [
+      0,
+      0,
+      32,
+      192,
+      14,
+      4,
+    ]);
+    expect(Builder.buildFromObject('Maxim').asUint8List(), [
+      5,
+      77,
+      97,
+      120,
+      105,
+      109,
+      0,
+      6,
+      20,
+      1,
+    ]);
     expect(
-        Builder.buildFromObject(-2.50).asUint8List(), [0, 0, 32, 192, 14, 4]);
+      Builder.buildFromObject([1, 3.3, 'max', true, null, false]).asUint8List(),
-    expect(Builder.buildFromObject('Maxim').asUint8List(),
+      [
-        [5, 77, 97, 120, 105, 109, 0, 6, 20, 1]);
+        3,
+        109,
+        97,
+        120,
+        0,
+        0,
+        0,
+        0,
+        6,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        102,
+        102,
+        102,
+        102,
+        102,
+        102,
+        10,
+        64,
+        31,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        4,
+        15,
+        20,
+        104,
+        0,
+        104,
+        54,
+        43,
+        1,
+      ],
+    );
     expect(
-        Builder.buildFromObject([1, 3.3, 'max', true, null, false])
+      Builder.buildFromObject([
-            .asUint8List(),
+        {'something': 12},
-        [
+        {'something': 45},
-          3,
+      ]).asUint8List(),
-          109,
+      [
-          97,
+        115,
-          120,
+        111,
-          0,
+        109,
-          0,
+        101,
-          0,
+        116,
-          0,
+        104,
-          6,
+        105,
-          0,
+        110,
-          0,
+        103,
-          0,
+        0,
-          0,
+        1,
-          0,
+        11,
-          0,
+        1,
-          0,
+        1,
-          1,
+        1,
-          0,
+        12,
-          0,
+        4,
-          0,
+        6,
-          0,
+        1,
-          0,
+        1,
-          0,
+        45,
-          0,
+        4,
-          102,
+        2,
-          102,
+        8,
-          102,
+        4,
-          102,
+        36,
-          102,
+        36,
-          102,
+        4,
-          10,
+        40,
-          64,
+        1,
-          31,
+      ],
-          0,
+    );
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          1,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          4,
-          15,
-          20,
-          104,
-          0,
-          104,
-          54,
-          43,
-          1
-        ]);
-    expect(
-        Builder.buildFromObject([
-          {'something': 12},
-          {'something': 45}
-        ]).asUint8List(),
-        [
-          115,
-          111,
-          109,
-          101,
-          116,
-          104,
-          105,
-          110,
-          103,
-          0,
-          1,
-          11,
-          1,
-          1,
-          1,
-          12,
-          4,
-          6,
-          1,
-          1,
-          45,
-          4,
-          2,
-          8,
-          4,
-          36,
-          36,
-          4,
-          40,
-          1
-        ]);
   });
 
   test('add double indirectly', () {
@@ -539,7 +608,7 @@ void main() {
       35,
       8,
       40,
-      1
+      1,
     ]);
   });
 
@@ -576,7 +645,7 @@ void main() {
       27,
       8,
       40,
-      1
+      1,
     ]);
   });