Bug 291363 – GenerateTAPI failure with ENABLE_WEBGPU_SWIFT enabled

• Component: Tools / Tests
• Status: RESOLVED FIXED

Reproduced with internal code, but this should be the open source equivalent steps:

1. OpenSource version e6f5defca40f979f3d4777bc51cfd25795f90e31
2. In OpenSource directory, create LocalOverrides.xcconfig and put “ENABLE_WEBGPU_SWIFT = ENABLE_WEBGPU_SWIFT” inside
3. make debug

Results:
** BUILD FAILED **

The following build commands failed:
	GenerateTAPI WebKitBuild/Debug/WebGPU.framework/Versions/A/WebGPU.tbd normal arm64e (in target 'WebGPU' from project 'WebGPU')
	Building workspace WebKit with scheme Everything up to WebKit + Tools and configuration Debug
(2 failures)


Due to
GenerateTAPI WebKitBuild/Debug/WebGPU.framework/Versions/A/WebGPU.tbd normal arm64e (in target 'WebGPU' from project 'WebGPU')
    cd Source/WebGPU
 <snip>
error: swift generated text based file doesn't have symbol '__C_Synthesized.__defaultArg_1__ZNK6WebGPU6Device16safeCreateBufferEmb() -> Swift.Bool', but found in dynamic library
error: swift generated text based file doesn't have symbol '__C_Synthesized.__defaultArg_3__ZNK6WebGPU6Device18newBufferWithBytesEPKvmmb() -> Swift.Bool', but found in dynamic library
error: swift generated text based file doesn't have symbol '__C_Synthesized.__defaultArg_3__ZNK6WebGPU6Device24newBufferWithBytesNoCopyEPvmmb() -> Swift.Bool', but found in dynamic library

rdar://148977134

[Alexey Proskuryakov]

Potential fix is in https://github.com/WebKit/WebKit/pull/43896

[EWS]

Committed 293999@main (3fce852ff4e4): <https://commits.webkit.org/293999@main>

Reviewed commits have been landed. Closing PR #43896 and removing active labels.