160483 2016-08-02 18:09:27 -0700 We don't properly propagate non-simple-parameter-list when parsing a setter 2016-09-29 11:31:29 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 saam saam benjamin fpizlo ggaren gskachkov joepeck keith_miller mark.lam msaboff oliver sukolsak ticaiolima ysuzuki oldest_to_newest 1216720 0 saam 2016-08-02 18:09:27 -0700 for example, we parse this, when we shouldn't: ``` let x = { set p(x = 20) { "use strict"; } } ``` 1234669 1 290164 saam 2016-09-28 19:44:26 -0700 Created attachment 290164 patch 1234674 2 saam 2016-09-28 19:56:06 -0700 There might be some test262 tests that now pass. I'll check it out tonight (at airport now). 1234712 3 290164 joepeck 2016-09-28 22:17:55 -0700 Comment on attachment 290164 patch View in context: https://bugs.webkit.org/attachment.cgi?id=290164&action=review > Source/JavaScriptCore/parser/Parser.cpp:2003 > + if (defaultValue || hasDestructuringPattern) { > + semanticFailIfTrue(duplicateParameter, "Duplicate parameter '", duplicateParameter->impl(), "' not allowed in function with non-simple parameter list"); Failing these cases with the SyntaxError message "Duplicate parameter" is misleading. That said, up above in ArrowFunction parsing we will want to handle Duplicate parameters: `(x, x) => 1` should produce a duplicate parameter warning. You may want to fix that separately though. > LayoutTests/js/parser-syntax-check-expected.txt:1052 > +PASS Invalid: "({set foo(x = 20) { 'use strict'; } })" > +PASS Invalid: "function f() { ({set foo(x = 20) { 'use strict'; } }) }" > +PASS Invalid: "({set foo({x}) { 'use strict'; } })" > +PASS Invalid: "function f() { ({set foo({x}) { 'use strict'; } }) }" > +PASS Invalid: "({set foo([x]) { 'use strict'; } })" > +PASS Invalid: "function f() { ({set foo([x]) { 'use strict'; } }) }" > +PASS Invalid: "({set foo(...x) {} })" In all of these cases 'x' is not a duplicate. If that is the error message we get we should refine it. 1234713 4 290164 joepeck 2016-09-28 22:19:29 -0700 Comment on attachment 290164 patch View in context: https://bugs.webkit.org/attachment.cgi?id=290164&action=review >> Source/JavaScriptCore/parser/Parser.cpp:2003 >> + semanticFailIfTrue(duplicateParameter, "Duplicate parameter '", duplicateParameter->impl(), "' not allowed in function with non-simple parameter list"); > > Failing these cases with the SyntaxError message "Duplicate parameter" is misleading. > > That said, up above in ArrowFunction parsing we will want to handle Duplicate parameters: `(x, x) => 1` should produce a duplicate parameter warning. You may want to fix that separately though. Err, I clearly misread this. The change here is setting the hasNonSimpleParameterList bit. Clearing r- 1234733 5 290164 joepeck 2016-09-28 23:44:15 -0700 Comment on attachment 290164 patch r=me! Seems like these test262 tests (there are generator ones that could also use the kind of patch) - path: test262/test/language/expressions/object/method-definition/setter-use-strict-with-non-simple-param.js - path: test262/test/language/expressions/object/method-definition/setter-use-strict-with-non-simple-param.js 1234746 6 290164 saam 2016-09-29 01:20:56 -0700 Comment on attachment 290164 patch View in context: https://bugs.webkit.org/attachment.cgi?id=290164&action=review >>> Source/JavaScriptCore/parser/Parser.cpp:2003 >>> + semanticFailIfTrue(duplicateParameter, "Duplicate parameter '", duplicateParameter->impl(), "' not allowed in function with non-simple parameter list"); >> >> Failing these cases with the SyntaxError message "Duplicate parameter" is misleading. >> >> That said, up above in ArrowFunction parsing we will want to handle Duplicate parameters: `(x, x) => 1` should produce a duplicate parameter warning. You may want to fix that separately though. > > Err, I clearly misread this. The change here is setting the hasNonSimpleParameterList bit. Clearing r- I'll handle arrow functions in a separate patch. >> LayoutTests/js/parser-syntax-check-expected.txt:1052 >> +PASS Invalid: "({set foo(...x) {} })" > > In all of these cases 'x' is not a duplicate. If that is the error message we get we should refine it. Yeah here it will probably say unexpected "..." or something similar. I'll rewrite this test tomorrow to log the error messages so we can prevent regressions, be aware of when we change error messages, and know what the error messages are when we add new tests. Also, specifically with respect to the rest parameter test, I just added it because it seemed worth adding and I'm not sure if we have parser tests elsewhere that test a rest parameter inside a setter 1234863 7 saam 2016-09-29 11:07:42 -0700 landed in: https://trac.webkit.org/changeset/206590 290164 2016-09-28 19:44:26 -0700 2016-09-28 23:44:15 -0700 patch b-backup.diff text/plain 7092 saam SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMjA2NTc0KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDEzIEBA CisyMDE2LTA5LTI4ICBTYWFtIEJhcmF0aSAgPHNiYXJhdGlAYXBwbGUuY29tPgorCisgICAgICAg IFdlIGRvbid0IHByb3Blcmx5IHByb3BhZ2F0ZSBub24tc2ltcGxlLXBhcmFtZXRlci1saXN0IHdo ZW4gcGFyc2luZyBhIHNldHRlcgorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93 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