Make CodeGeneratorJS plant comments to explain failures in the binding validation

[Oliver Hunt]

Make CodeGeneratorJS plant comments to explain failures in the binding validation

[Oliver Hunt]

Created attachment 197878 [details]
Patch

[Oliver Hunt]

Committed r148301: <http://trac.webkit.org/changeset/148301>

[David Kilzer (:ddkilzer)]

Comment on attachment 197878 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=197878&action=review

r=me

> Source/WebCore/bindings/scripts/CodeGeneratorJS.pm:2758
>          push(@implContent, <<END) if $interface->extendedAttributes->{"ImplementationLacksVTable"} && $vtableNameGnu;
>  #if COMPILER(CLANG)
> -        COMPILE_ASSERT(!__is_polymorphic($implType), ${implType}_is_polymorphic_but_idl_claims_not_to_be);
> +    // If you hit this failure the interface definition has the ImplementationLacksVTable
> +    // attribute. You should remove that attribute. If the class has subclasses
> +    // that may be passed through this toJS() function you should use the SkipVTableValidation
> +    // attribute to $interfaceName.
> +    COMPILE_ASSERT(!__is_polymorphic($implType), ${implType}_is_polymorphic_but_idl_claims_not_to_be);
>  #endif
>  END

The bindings test scripts don't appear to cover this test case.  Might be something we want to add in the future.