* Improves vectors performance and adds a benchmark to vectors of offsets in swift
Improves performance for all arrays and for loops
Uses a tuple instead of allocating a struct each time we start iterating over fieldloc
Updates benchmark library
* Fixing swift Wasm ci
Updates copyright from 2023 to 2024 & formats code - updates formatting rules
Updates CI to run with swift 5.8
Adds wasmer & updates command to run carton as a swift plugin
Update bazelci to also accept swift 5.8
Adds swift 5.10 to the test matrix
* Fixes Bazel issues for windows and ci
Fetching boringssl within the flatbuffers repository, to patch the issues
of not being able to upgrade to Xcode 14.3 due to buildkite throwing
errors. The patch was inspired by the tenserflow patch
https://github.com/tensorflow/tensorflow/issues/60191#issuecomment-1496073147
Removes references of swift from the windows pipeline for bazel
Sets github actions to use xcode 14.3 for kotlin and sets the macOS
build for intel cpus.
* Update build.yml
Remove comment that is not relevant any longer.
---------
Co-authored-by: Derek Bailey <derekbailey@google.com>
* Update build.yml to ubuntu-24.04
Apparently g++-13 was removed from the ubuntu-22.04 runners.
We also don't have enterprise runners at 24.04 yet, so just use the free ones for now until we get support for those. CI builds might take longer now.
* Update build.yml
Downgrade to g++12 and revert change to using normal runners
* Update build.yml
Go back to ubuntu-24.04 and update both gcc and clang to their latest versions according to [this](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2404-Readme.md?plain=1#L16-L20).
* Update build.yml
Go back to g++13 for now, as we get some exotic warning in g++14 for newer C++ standards.
* Update build.yml
Fix the other issues with `macos-latest` going to arm: https://github.com/actions/runner-images/tree/main?tab=readme-ov-file#available-images and that Swift wasn't installed in the ubuntu-24.04 by default.
* Update build.yml
Disable Kotlin MacOs CI
* Update build.yml
Use our enterprise runners
* Make a default runs-on
* Update build.yml
Use the latest 64-core runners
* Update build.yml
Fix windows runner that don't have visual studios
* Update build.yml
use windows-2019 as the 2022 doesn't seem to have visual studios installed
* Update build.yml
Upgrade to gcc 13 and clang 15
* switch to __is_trivially_copyable
* fix cmake issue and warning about sign comparison
* Use libc++ for C++23 on clang for now
* Use libc++ for C++23 on clang for now
* exclude clang+15 for C++13 builds
* [Kotlin] Introduction to Kotlin Multiplaform
The first implementation of the Kotlin code generation was made years
ago at the time Kotlin Multiplaform was not stable and Kotlin is mostly
used on JVM-based targets. For this reason the generated code uses java
based runtime.
That design decision comes with many drawbacks, leaving the code
generated more java-like and making it impossible to use more advanced
features of the Kotlin language.
In this change we are adding two parts: A pure, multi-plaform, Kotlin
runtime and a new code generator to accompany it.
* [Kotlin] Remove scalar sign cast from code generation
Now that we have a new runtime the accepts unsigned types, we don't
need to code generate casting back and from signed scalars. This
MR removes this from both code generations and adds the necessary
API to the runtime.
* [Kotlin] Use offset on public API to represent buffer position
Currently, kotlin was following Java's approach of representing objects,
vectors, tables as "Int" (the position of it in the buffer). This change
replaces naked Int with Offset<T>, offering a type-safe API. So,
instead of
fun Table.createTable(b: FlatBufferBuilder, subTable: Int)
We will have
fun Table.createTable(b: FlatBufferBuilder, subTable: Offset<SubTable>)
Making impossible to accidentally switch parameters.
The performance should be similar to use Int as we are using value
class for Offset and ArrayOffset, which most of the time translate to
Int in the bytecode.
* [Kotlin] Add builder for tables
Add builder constructor to make create of table more ergonomic.
For example the movie sample for the test set could be written as:
Movie.createMovie(fbb,
mainCharacterType = Character_.MuLan,
mainCharacter = att) {
charactersType = charsType
this.characters = characters
}
instead of:
Movie.startMovie(fbb)
Movie.addMainCharacterType(fbb, Character_.MuLan)
Movie.addMainCharacter(fbb, att as Offset<Any>)
Movie.addCharactersType(fbb, charsType)
Movie.addCharacters(fbb, charsVec)
Movie.endMovie(fbb)
* [Kotlin] Move enum types to value class
Moving to flatbuffer enums to value class adds type safety for parameters
with minimum to no performance impact.
* [Kotlin] Simplify Union parameters to avoid naked casting
Just a small change on the APIs that receive union as parameters,
creating a typealias UnionOffset to avoid using Offset<Any>. To "convert"
an table offset to an union, one just call Offset.toUnion().
* [Kotlin] Apply clang-format on kotlin code generators
* [Kotlin] Update kotlin generator to follow official naming conventions
Updating directory, package and enum naming to follow Kotlin official
convention.
https://kotlinlang.org/docs/coding-conventions.html#naming-rules
* [Kotlin] Add fixes to improve performance
1 - Add benchmark comparing serialization between Java & Kotlin
2 - ReadWriteBuffer does not auto-grow (thus avoid check size in every op)
3 - Add specialized add functions on FlatBufferBuilder to avoid boxing
offsets.
4 - Remove a few Kotlin syntax sugar that generated performance penalties.
* [Kotlin] Remove builder from Kotlin KMP and add some optimizations
to avoid boxing of Offset classes
---------
Co-authored-by: Derek Bailey <derekbailey@google.com>
