[tint][fuzz] Add testing for gatherWgslFiles

Adding this test took me slightly down the rabbit hole, since I wanted
to simply check if a dir is empty without needing to walk the
directory structure, which should be doable using os.ReadDir. This led
me to discovering that our OS wrapper did not implement ReadDir(),
which inturn led me to discovering afero's implementation of ReadDir
is not API compatible with os's, it actually implements the older
`Readdir()` (yes with a lowercase d) from File.

So I have added `Readdir` to the wrapper API to match closer the
behaviour that is currently going on/what afero acutally
implements. And added related testing and updated existing tests I was
walking the directory struct manually.

Change-Id: I3ca3087db36445ec9c27c95ba361f94a94d4f384
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/255594
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Brian Sheedy <bsheedy@google.com>
8 files changed
tree: 801eb403bfd91333ff8c4b1e369c847524c37692
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. .bazelrc
  15. .clang-format
  16. .clang-format-ignore
  17. .clang-tidy
  18. .git-blame-ignore-revs
  19. .gitattributes
  20. .gitignore
  21. .gitmodules
  22. .gn
  23. .style.yapf
  24. .vpython3
  25. AUTHORS
  26. BUILD.bazel
  27. BUILD.gn
  28. CMakeLists.txt
  29. CMakeSettings.json
  30. CODE_OF_CONDUCT.md
  31. codereview.settings
  32. CONTRIBUTING.md
  33. CPPLINT.cfg
  34. DEPS
  35. DIR_METADATA
  36. go.mod
  37. go.sum
  38. go_presubmit_support.py
  39. LICENSE
  40. OWNERS
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. WATCHLISTS
  45. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.