Bug 270245 – [Win] run-bindings-tests: FAILURE: Determination of whether there is an interface or callback interface from regular expression based parser (YES) doesn't match the determination from validation parser (NO)

• Status: RESOLVED
• Resolution: FIXED
• Component: Tools / Tests

[Fujii Hironori]

run-bindings-tests fails on my PC. It works fine on WinCairo buildbot.

> PS C:\webkit> python Tools/Scripts/run-bindings-tests
> FAILURE: Determination of whether there is an interface or callback interface from regular expression based parser (YES) doesn't match the determination from validation parser (NO) [WebCore\bindings\scripts\test\DedicatedWorkerGlobalScope.idl]. at WebCore/bindings/scripts/preprocess-idls.pl line 790.
> 
> Failed to generate a supplemental dependency file.

[Fujii Hironori]

I have CC=clang-cl env var.

preprocessor.pm uses only /EP flag for Windows.
https://github.com/WebKit/WebKit/blob/76811693b10007dba19a08e3395e0c072c4bc0be/Source/WebCore/bindings/scripts/preprocessor.pm#L51

But, clang-cl complains:

> clang-cl /EP .\a.idl
clang-cl: warning: .\a.idl: 'linker' input unused [-Wunused-command-line-argument]

CMake is using "/nologo /EP /TP" flags.
https://github.com/WebKit/WebKit/blob/76811693b10007dba19a08e3395e0c072c4bc0be/Source/cmake/WebKitCompilerFlags.cmake#L316

It works.

> clang-cl /nologo /EP /TP .\a.idl
[Exposed=DedicatedWorker] interface DedicatedWorkerGlobalScope : WorkerGlobalScope {
};

[Fujii Hironori]

Pull request: https://github.com/WebKit/WebKit/pull/25271

[EWS]

Committed 275477@main (4adc8868a3aa): <https://commits.webkit.org/275477@main>

Reviewed commits have been landed. Closing PR #25271 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/123805595>