58 Commits

Author SHA1 Message Date
Ville Vesilehto
9d64b9c0c0 fix(go): add bounds checking to ByteVector (#8776)
Add missing bounds checking to ByteVector before slice
operations in the Go FlatBuffers implementation. Relative offset and
vector length are now checked against the buffer size. Instead of
panicking, the code now returns nil. Regression test added.

Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
Co-authored-by: Justin Davis <jtdavis777@gmail.com>
2025-12-21 20:25:30 +00:00
razvanalex
31ab0bf6c8 [Go] Write required string fields into the buffer when using Object API (#8402)
* [Go] Write required string fields into the buffer when using Object API

In C++, CreateX allows to write the default "" value of a required
string, when the string is not explicitly set. Object API Pack method
uses this implementation of CreateX.

However, in go, despite whether the field is optional or required, it is
always checked against empty string allowing to create messages that
fail to pass the verifier. This commits partially reverts #7719 when the
string field is required.

* Add test for serializing required string fields using Object API

* Update generated code

The Monster schema contains a key string field. For historical
convenience reasons, string keys are assumed required.
2025-12-01 09:50:03 -05:00
Jeroen Demeyer
e4775aa3fe [Go] add BenchmarkBuildAllocations (#8287) 2025-11-30 22:12:12 -05:00
Jeroen Demeyer
63495b935a Support file_identifier in Go (#7904)
Co-authored-by: Derek Bailey <derekbailey@google.com>
2023-04-26 05:15:09 +00:00
Jeroen Demeyer
3fda20d7c7 Go: add test for FinishWithFileIdentifier (#7905)
Co-authored-by: Michael Le <michael.le647@gmail.com>
2023-04-11 17:08:04 -07:00
Michael Le
60975d6f7e Add key lookup support for tables in Go (#7644)
* Add support for key lookup for tables in Go

* Run clang format

* Run go fmt on tests

* Remove TODO in tests

* Update LookupByKey API

* Update LookupByKey API

* Don't use resolvePointer in expectEq

* Use generated getters instead of reading values directly from buffer

* Fix typo

Co-authored-by: Derek Bailey <derekbailey@google.com>
2022-11-22 14:08:19 -08:00
Saman
1cba8b2b49 Fix go generator undefined Package name, also throwing exception (#7632)
* Fix go generator undefined Package, also throw exception in specific examples.

* Add test for go generator import problem

* Add new version of generated go file. Fix conflict.

* Add executable permission to generate_code.py script.

* Improve test quality, remove unwanted generated files, better naming

* Fix comments

* clang format

Co-authored-by: Derek Bailey <derekbailey@google.com>
2022-11-22 13:21:25 -08:00
James Kuszmaul
8aa8b9139e Fix handling of +/-inf defaults in TS/rust/go/dart codegen (#7588)
+/-inf were not being handled, and so invalid typescript was being
generated when a float/double had an infinite default value. NaN was
being handled correctly.

Co-authored-by: Derek Bailey <derekbailey@google.com>
Co-authored-by: Casper <casperneo@uchicago.edu>
2022-11-08 10:59:46 -08:00
Andrei Burdulescu
c793621567 [golang] Add support for text parsing with json struct tags (#7353)
* [golang] Add support for text parsing with json struct tags

Add struct tags to Go native structs generated when object API is used.

This allows to use the same JSON file as for C++ text
parsing(i.e. snake_case vs CamelCase) and thus enabling text parsing
for Go(when using object API).

* [golang] Add test for text parsing

Added small test to check and demonstrate text parsing in Go.
Also, ran clang-format on cpp file changes.
2022-08-08 11:30:06 -07:00
Koya IWAMURA
9fce2fbf2a replace io/ioutil to os (#7281) 2022-06-14 15:10:57 -07:00
Christopher Crawford
06f4af11b6 Go optional scalars (#7104)
* [go] always write required types

* support optional scalars in go

* generate optional_scalars and monster_test

* restore original behavior for non-optional scalars

* add tests
2022-02-16 15:02:54 -05:00
Aaron Son
41253e574e [go] tests/GoTest.sh: Fix flags.Parse location to work on new go SDKs. (#6388)
* tests/GoTest.sh: Fix flags.Parse location to work on new go SDKs.

Calling flags.Parse() within init() races with other packages which register
flags in their init(), and in particular with the testing package itself. It is
more reliable to call flags.Parse() from a TestMain implementation.

See https://github.com/golang/go/issues/31859,
https://github.com/golang/go/issues/33869.

* .github: Enable build-go action in build.yaml workflow.
2021-01-07 11:54:00 -08:00
Charlie Yin
c9b29d0885 Support size-prefixed buffers and add tests for size-prefixed messages (#6232) 2020-11-05 11:23:56 -08:00
mustiikhalil
c7586e85aa Empties the sharedString map on reset on go and csharp (#6187)
Fixes go tests
2020-10-26 12:38:24 -07:00
mustiikhalil
a593a11e59 [Go] Implements a SharedStrings function (#5733)
* Adds the sharedstring implementation for go

* Reimplemented testcase according to request
2020-01-24 09:57:34 -08:00
Somo
bee1df96dc [Go] Replace references to hardcoded ”Monster" etc with idiomatic go wherever possible (#5716)
* go: replace objAPI-generated Pack func with method

See discussion at https://github.com/google/flatbuffers/issues/5668

* go: replace generated union type UnPack func with method

Similar to discussion https://github.com/google/flatbuffers/issues/5668

But signature:
```
func AnyUnPack(t Any, table flatbuffers.Table) *AnyT
```

Becomes,
```
func (rcv Any) UnPack(table flatbuffers.Table) *AnyT
```
2020-01-16 16:19:00 -08:00
iceboy
32254b7acd [Go] Object API support (#5339)
* start

* works for current usages!

* unpack: vector of struct

* optimize byte slice

* support nested struct

* support null table

* support struct

* support union

* update generated code

* grumble

* fix compiler warning

* update generated code

* wrap type in namespace

* bug

* wrap in namespace

* enum byte arrays

* generate struct for unions

* basic testing

* remove branching

* fix assert

* pack vector of fixed structs correctly

* omit null vectors

* Refactor Union Pack and UnPack methods

Remove append usage to increase code efficiency when dealing with large vectors

* generate goldens
2019-10-31 11:13:45 -07:00
David Reiss
c5e2d37337 [Go] Change two more sites to use enum types (#5359)
Fixes #5357 (regression introduced by #5235)
2019-05-20 14:46:36 -07:00
David Reiss
718ddea558 [Go] Make enums into real types, add String() (#5235)
* [Go] Make enums into real types, add String()

This changes the generated code for enums: instead of type aliases,
they're now distinct types, allowing for better type-checking. Some
client code may have to be changed to add casts.

Enum types now have a String() method, so they implement fmt.Stringer.

An EnumValues map is now generated, in addition to the existing
EnumNames map, to easily map strings to values.

Generated enum files are now gofmt-clean.

Fixes #5207

* use example.ColorGreen explicitly

* use valid enum value in mutation test, add new test for "invalid" enum

* add length check and comment
2019-05-17 12:41:39 -07:00
Vladimir Glavnyy
f9ebfcb9c4 Make Monster's Color unsigned (#5318)
- update C++ monster_test::Color to unsigned type
- update Go Color:ubyte in the go_test.go
- add workaround for unsigned enum in java test
- sync generate.bat and generate.sh
2019-05-09 10:07:38 -07:00
David Reiss
bfa430309a [Go] Add mutation functions for vector elements (#5221)
Fixes #5206
2019-03-05 21:16:26 -08:00
Robert
0eb7b3beb0 [Go] Namespaced imports fix (#5097)
Track and emit required FlatBuffers namespace imports in generated Go code.

Update Go code generator by moving most functionality into the generator class, to facilitate namespace tracking. (Note that the git diff in this combined commit may appear large due to this refactoring, but very little code was actually changed.)
Update Go code generator by tracking namespace imports when generating FlatBuffers code.
Update Go code generator by emitting package imports to correctly reference code in other FlatBuffers namespaces.
Create Go test that checks the usage of InParentNamespace objects (as defined in the example schema).
Create Docker test that checks the Go language port.
Fixes #4883
Fixes #3927

Individual commits:

* remove "static" from soon-to-be method functions
* move almost all functions into class as methods
* set current namespace and emit package names if needed
* track imported namespaces
* parent namespaces work
* docker test for go ^1.11
* update base image name for go docker test
* remove cerr debugging
* formatting fixes
* re-run generate_code.sh
* explicitly test namespace imports and usage
2018-12-27 20:57:19 -05:00
kostya-sh
76d31e1b5e Go - Use Go bool type for bool fields (#4962)
* Use Go bool type for bool fields, and store non-default bool field to test data
2018-10-15 16:55:59 -07:00
kostya-sh
a4c362a1ba Use enum types in generated read/mutate methods for Go (#4978) 2018-10-08 14:25:37 -07:00
rw
f675f6433c go: give enums their own scalar types 2018-07-26 16:46:35 -07:00
Wouter van Oortmerssen
ac1015e3c4 Trimmed vtables of trailing zeroes.
This is something the format supports, but none of the builders
were doing. Can save 10-20% on FlatBuffer binary size!

Also fixed the Go tests.

Change-Id: I616c56ce9bbcfcaee23aa24f0532fcb60b6a8c75
Tested: on Linux.
2017-08-24 09:35:54 -07:00
Stewart Miles
f064a6cc60 Test case for CreateVectorOfStructs() using a callback.
Fixes issue #4392, also fixed C++98 compatible code generation in tests.

Change-Id: Ia5833026e615ad19d24a0439bdba2e3b45c5f86c
2017-07-24 14:19:49 -07:00
Koichi Shiraishi
25c884158f go: fix unknown field 'UOffset' to 'Pos'
Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>
2017-01-22 20:16:52 +09:00
Pascal S. de Kloe
b55f18649a Resolve Go fmt and vet warnings (#4134)
* Resolve Go fmt and vet warnings.

* Undo generated code gofmt.
2017-01-09 17:13:44 -08:00
gonzaloserrano
199a49b5b3 Add a generic way to deserialize a flatbuffer in Go.
Similar to what protobufs does with its `Message` interface, introduce here such interface and create a generic `GetRootAs` method to deserialize a flatbuffer.
2016-08-23 16:38:22 +02:00
Kazuki Sakamoto
5f351a35a2 Add EnumNames to Go code
Tested: on Darwin
2016-07-25 19:37:16 -07:00
Robert
a56c6e5195 Merge pull request #363 from danring/fix-341
Emit GetRootAs methods for all types in Go and Python
2016-07-22 15:12:35 -07:00
Muhammed Thanish
53e9606ea2 Implement mutators for Go 2016-07-20 22:58:22 +05:30
Dan Ring
4832238708 Add tests for GetRootAs* in Go and Python 2016-06-14 18:41:33 -04:00
rw
2dfff15a9d Improve Builder user interface.
+ Add state to the Builder object to track if we are inside a table,
  and if we are finished building the buffer.
+ Use this data to check that a buffer is being built correctly.
+ Panic if a buffer is not being built correctly.
+ Test that the panics happen as expected.

Based on d236dea13d.
2015-11-11 17:08:16 -08:00
Robert
781c39c708 Fix 32bit-system integer overflow (test only)
For #277
2015-09-25 13:57:17 -07:00
Bruno Bigras
edb3b9c307 Remove duplicate Go test 2015-09-21 17:51:16 -04:00
rw
4d305f5922 Panic when nesting strings. Test panic scenarios.
Also add a new `insideObject` boolean to the Builder to track whether an
object is currently being constructed. This fixes a bug with objects
that have zero fields.
2015-06-24 11:53:44 -04:00
rw
0894c25f2c Improve comment for unicode check. 2015-05-20 14:19:49 -07:00
rw
7810fb9ce4 use escape codes here for non-unicode editors 2015-05-20 13:42:51 -07:00
rw
c127cf78c2 Go: CreateString now needs zero allocs.
Big speed boost for the typical use case of building with strings.
2015-05-20 12:00:44 -07:00
Robert
4d213c2d06 Merge pull request #165 from rw/go-faster
Go speed improvements
2015-05-12 14:53:31 -07:00
rw
3dd54424c0 remove remaining allocs during build 2015-05-09 16:07:11 -07:00
Ben Harper
8b99bf614c Add byte slice accessor to Go code
Change-Id: I15cc8924d6607bd93068c762fd67e6088cfd9789
2015-04-06 11:44:22 -07:00
Kyle Jones
c4a3e2f6bd Always add additional space if no more is available
Change-Id: If08b2d839489d40e977de794b13584fa66ff32c1
2015-04-06 11:44:22 -07:00
rw
d756efbf76 Reduce allocations when reusing a Builder.
Add the function `Reset` to the Builder, which facilitates reuse of the
underlying byte slice.
2015-04-02 19:33:00 -07:00
rw
ace7fa8094 Reduce allocations when building strings.
Builder has a new CreateByteString function that writes a
null-terimnated byte slice to the buffer. This results in zero
allocations for writing strings.
2015-04-02 18:22:13 -07:00
rw
f02646e357 Remove all string allocations during parsing.
Change the signature for 'string' getters and settings to use byte
slices instead of strings.
2015-04-02 11:56:55 -07:00
rw
0a3a09aaf3 Merge branch 'go-bytevector-getter' of github.com:benharper123/flatbuffers into go-faster 2015-04-02 11:47:17 -07:00
rw
796be3282c Benchmarks for building and parsing 'gold' data.
Identifies alloc-heavy codepaths.
2015-04-02 11:26:00 -07:00