* Unified name case conversion to single method
* Convert bfbs_gen to use ConvertCase
* convert rust to use ConvertCase
* Convert idl_parser to use ConvertCase
* Convert MakeScreamingCamel to ConvertCase
* Replaced MakeCamel with ConvertCase
* minor fixes
Augment the C++ generator to emit a C++ copy constructor and a by-value
copy assignment operator. This is enabled by default when the C++
standard is C++11 or later. These additional functions are only emitted
for objects that need it, typically tables containing other tables.
These new functions are declared in the object table type and are
defined as inline functions after table declarations.
When these new functions are declared, a user-defined
explicitly-defaulted default constructor and move constructor are also
emitted.
The copy assignment operator uses the copy-and-swap idiom to provide
strong exception safety, at the expense of keeping 2 full table copies
in memory temporarily.
fixes#5783
* CPP Default Value Generation in Mutators
If the mutator is for a value that is compatible with having a default value, then the single parameter becomes a default parameter. With this, a value can be mutated to it's default value without storing the default value, as that will be stored with the mutate function.
Fixed Casting When Generating Default for Enum Value
Added support for typecasting an int default value into the correct enum type in the default parameter. This fixed the issue of trying to use set a strongly typed enum parameter to an int which fails type checking.
Fixed Boolean Edge Case
Boolean types generate 0 != 0 when generating the underlying type which appears to be unique to the boolean type so it is now checked and the proper default value generated. It may be beneficial to check if it is instead an enum type, however the seeming edge case nature is why boolean was chosen to be checked.
Updated Generated Files
Regenerated the auto generated files to reflect the new changes.
Updated Remaining Files
Should fix auto generated header files that were not updated.
* Unified Repeated Code
Relocated identical append code to outside of conditional. Also changed 'casted' default value name from FIELD to INTERFACE to more accurately describe it.
* Moved Field Name Outside Conditional
Removed duplicate _{{FIELD_NAME}} and moved to unified append.
* flattests_cpp17 doesn't compile with Visual Studio 2017: warning C4100: 'indent': unreferenced formal parameter
stringify_util.h(127): error C2220: warning treated as error - no 'object' file generated
stringify_util.h(127): warning C4100: 'indent': unreferenced formal parameter
stringify_util.h(85): warning C4100: 'indent': unreferenced formal parameter
stringify_util.h(85): warning C4100: 'fbs': unreferenced formal parameter
* [C++] Add GetMutableSizePrefixedRoot() and generate a GetMutableSizePrefixed function
When using the mutable API together with size prefixed buffers these functions should be present.
* clang-format
* Cleanup branch for PR
Revert "flattests_cpp17 doesn't compile with Visual Studio 2017: warning C4100: 'indent': unreferenced formal parameter"
This reverts commit a92055203e.
Causes generated code to check for existing pointers in an object (when using the object based api) and use UnPackTo(existingPointer) rather than just using UnPack() to replace the pointer. This is a performance issue when unpacking to existing objects when using large buffer fields (e.g. image frames)
Co-authored-by: RobWauson <robwauson@gmail.com>
* Improve generated comparisons for tables
Previously, the generated code called std::unique_ptr<>::operator== on
non-scalar members, which would be correct only if the member was null
on both sides. After this CL, comparison is done on the pointed-to
values (including using a default-constructed value if the pointer is
null).
* Don't equate null Tables with all defaults
Also removes the cost of default-constructing tables for comparisons.
* Regenerate code
* fix formatting
* flatc --cpp-field-case option to permit camel-case field names in C++
* fixed option name; cleaned up tabs
* formatting fixed to conform to CI
* resolved comments
* fixed white space indentation
* per PR comments
* rename snake case option to unchanged for clarity, per PR comments
* cleanup of unchanged case option in C++ codegen, per PR 6669 comments
* incorporated PR feedback from vglavnyy
* cleaned up to pass Travis CI / clang format
* bumped PR to retry transient CI failure
* bumped PR to retry transient CI failure
* bump PR
* assert union type field name length > suffix, per PR 6669 comments
* [C++] #6501 - Problem when mapping a native type multiple times
- idl.h:
added "native_type_pack_name"
- flatbuffers.h:
added CreateVectorOfNativeStructs variants which receive a pointer to the serialization function
- idl_gen_cpp.cpp:
adapted code generation in case "native_type_pack_name" attribute is present
- extended tests & docs; improved surrounding native_type docs a little
* integrated review feedback
* [C++17] Add compile-time reflection for fields.
Included in this commit is the following:
- The C++ generator has been modified so that,
when in C++17 mode, it will emit Table and
Struct field traits that can be used at com-
pile time as a form of static reflection. This
includes field types, field names, and a tuple
of field getter results.
- Diffs to the cpp17 generated files. No other
generated files are affected.
- A unit test that also serves as an example. It
demonstrates how to use the full power of this
reflection to implement a full recursive
JSON-like stringifier for Flatbuffers types,
but without needing any runtime access to the
*.fbs definition files; the computation is
done using only static reflection.
Tested on Linux with gcc 10.2.0.
Fixes#6285.
* Fix int-conversion warning on MSVC.
* Try to fix std::to_string ambiguity on MSVC.
* Fix clang-format diffs.
* Fix more clang-format diffs.
* Fix last clang-format diff.
* Enable C++17 build/test for VC 19 platform in CI.
* Forgot to add value to cmake command line variable.
* Various fixes/changes in response to @vglavnyy's feedback.
* Replace "fields pack" with index-based getters.
* Fix MSVC error.
* Fix clang-format diffs.
* getter_for method returns result instead of address-of-getter.
* Next round of reviewer suggestions.
* Use type instead of hardcoded struct name.
* Fix clang-format diff.
* Add test for FieldType since it is not used in the stringify test.
* Add fields_number field to Traits struct.
* Add --cpp-static-reflection flag and put those features behind it.
* Fix clang-format diffs.
* Remove <tuple> include.
* Define presence.
* Migrate to IsRequired and IsOptional methods
* moved stuff around
* Removed optional and required bools from FieldDef
* change assert to return error
* Fix tests.cpp
* MakeFieldPresence helper
* fmt
* old c++ compatibility stuff
Co-authored-by: Casper Neo <cneo@google.com>
* Apply NativeName before WrapInNameSpace in idl_gen_cpp.cpp
* remove actual_type argument from GetUnionElement -- it's always true
* Merge GetUnionElement's native_type and wrap_native argument -- they always have the same value.
* Use convenience method WrapNativeNameInNameSpace
* Remove wrap_namespace argument from GetUnionElement
* Move declaration closer to first use.
Prior to this commit the default C++ code generator was `c++0x`.
A code generated with `c++0x` code-gen might have a vulnerability (undefined behavior) connected evolution of enums in a schema. This UB could break the backward compatibility if previously generated code casts an unknown enumerator to enum type that knows nothing about future enumerators added to the schema.
The main differences between `c++0x` and `c++11`:
- generated enums use explicitly declared underlying type;
- generated object-API tables don't declare default ctor() explicitly, instead of it default data member initializers are generated.
Please use `flatc --cpp-std c++0x` option for backward compatibility with old compilers.
* Updated SupportsAdvancedUnionFeatures to look out for string
* Mass refactoring to use BASE_TYPE helper functions.
Co-authored-by: Casper Neo <cneo@google.com>
* Add option to not generate direct copy methods.
The direct copy methods generated by flatc utilize std::vector which isn't allowed on some embedded systems. Permit users of the compiler to not generate these methods so they don't have to be stubbed out.
* Update docs for no-cpp-direct-copy option.
* GRPC implementation for Typescript
* Fixes a couple of issues
* Finished implementing the typescript support for grpc
* Updated generated code
* Fixes CI
* Moved C++ to optional_scalars2 and added some tests.
Also deleted unused optional_scalars_generated.lobster
* Fixed whitespece in C++ gencode & fixed BUILD file
* Moved C++ onto optional_scalars2 in the .bat file
Co-authored-by: Casper Neo <cneo@google.com>
UnpackTo copies vector elements one-by-one, which can be very inefficient depending on the quality of the compiler optimizations performed. This change updates the operation for vectors of bytes that aren't enums to use 'std::copy', which is usually highly optimized.
vectors of types that are more than one byte can't be optimized in this way because of the endianness of the serialized bytes vs. the target architecture endianness.
vectors of enums can't be optimized because they are required to be static_cast into the appropriate enum type when stored in the vector.
vectors of bools can be optimized in most cases, but since the standard
allows std::vector<bool> template specialization for space-savings,
std::copy doesn't work on every implementation (looking at you
Microsoft). Thus, this optimization is skipped for vector<bool>.
For a specific example, this improves the latency of unpacking large buffers on the Hexagon DSP by about 10x.
Co-authored-by: Matthew Markwell <markwell@google.com>
This commit adds replacement of `::tolower` and `::toupper`.
Added CharToLower and CharToUpper routines reduce the number of cast operators
that required for correct usage of standard C/C++ `::tolower/toupper` routines.
This commit performs refactoring (Extract Method) of the C++ code generator.
It extracts code generation of a table getter/mutator into separated methods.
* Fixed refractoring issue in reflection/generate_code.sh. Also, mv deletes the original file, so I don't need to clean it up manually in that case.
* Fixed Dart Tests by removing code-gen for included files.
* Added code gen for evolution tests back in.
* General generate code and clang format
* Added evolution schema generation to .bat file
* Added code gen for evolution tests back in.
* General generate code and clang format
* Added evolution schema generation to .bat file
* reran generate_code.sh
* Removed wildcard from generate_code.bat that doesn't work
In >= C++11 mode, generate default member initializers instead of a
default constructor.
The new code is semantically equivalent, but will allow aggregate
initialization in C++20.
This is a different take on #5951.
* Fixed refractoring issue in reflection/generate_code.sh. Also, mv deletes the original file, so I don't need to clean it up manually in that case.
* Fixed Dart Tests by removing code-gen for included files.
* Fix issue #5906, Prohibit declaration of an array of pointers inside structs
- idl_parser.cpp: Prohibit declaration of an array of pointers inside structs
- idl_gen_cpp.cpp: Extract GenStructConstructor() method from GenStruct() to simplify future modification
- idl_gen_cpp.cpp: Add assert for checking of Array fields in structs on code-generation stage
* Fix the error 'unused local variable' in release build
* Fix: format the PR code according to coding rules
* Add test-case and fix review notes
