Bug 144238 – Class contructor and methods shouldn't have "arguments" and "caller"

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Ryosuke Niwa]

Apparently ES6 gutted "arguments" property from class constructors and methods.
Authors should also be able to define a property named "arguments";
e.g.
class A {
  static arguments() {}
}
class B {
  static get arguments() {}
}

[Ryosuke Niwa]

Same goes for "caller".

[GSkachkov]

Created attachment 277849 [details]
Patch

[GSkachkov]

Created attachment 277850 [details]
Patch

Patch for review

[GSkachkov]

Created attachment 277851 [details]
Patch

Small improvement

[GSkachkov]

Created attachment 277854 [details]
Patch

Remove debug code

[GSkachkov]

I think define arguments property should be fixed in separate patch, we already has one https://bugs.webkit.org/show_bug.cgi?id=152985

[Ryosuke Niwa]

Comment on attachment 277854 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=277854&action=review

> LayoutTests/js/script-tests/class-method-and-constructor-properties.js:55
> +  caller() { return 'value'; }

How about staric ones?

[Ryosuke Niwa]

(In reply to comment #7)
> Comment on attachment 277854 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=277854&action=review
> 
> > LayoutTests/js/script-tests/class-method-and-constructor-properties.js:55
> > +  caller() { return 'value'; }
> 
> How about staric ones?

Oh, never mind. Didn't see the comment there

[Ryosuke Niwa]

Comment on attachment 277854 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=277854&action=review

> Source/JavaScriptCore/runtime/JSFunction.cpp:371
> +                GetterSetter* errorGetterSetter = thisObject->jsExecutable()->isClassConstructorFunction() || thisObject->jsExecutable()->parseMode() == SourceParseMode::MethodMode

Please add a static local helper function instead of duplicating the code.

[GSkachkov]

(In reply to comment #9)
> Comment on attachment 277854 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=277854&action=review
> 
> > Source/JavaScriptCore/runtime/JSFunction.cpp:371
> > +                GetterSetter* errorGetterSetter = thisObject->jsExecutable()->isClassConstructorFunction() || thisObject->jsExecutable()->parseMode() == SourceParseMode::MethodMode
> 
> Please add a static local helper function instead of duplicating the code.

Done

[GSkachkov]

Committed r 200321: <http://trac.webkit.org/changeset/200321>

[Ryosuke Niwa]

Closing the bug since the patch was landed in http://trac.webkit.org/changeset/200321.