Bug 170648 – test262: test262/test/annexB/language/comments/multi-line-html-close.js

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Joseph Pecoraro]

A multi-line multi-line comment with HTML Closing Comment should treat trailing content like HTML Closing Comment (single line comment)

Test:
1/*
*/--> This should be a comment

Expected:
1

Result:
SyntaxError

Test:
test262/test/annexB/language/comments/multi-line-html-close.js

[Joseph Pecoraro]

Created attachment 306586 [details]
[PATCH] Proposed Fix

[Joseph Pecoraro]

Comment on attachment 306586 [details]
[PATCH] Proposed Fix

View in context: https://bugs.webkit.org/attachment.cgi?id=306586&action=review

> Source/JavaScriptCore/parser/Lexer.cpp:1994
> +            if ((m_atLineStart || m_terminator) && m_current == '>') {

I might be able to just drop m_atLineStart entirely and just use m_terminator.

[Joseph Pecoraro]

Comment on attachment 306586 [details]
[PATCH] Proposed Fix

Yes, I think I can drop the entire variable. Existing tests pass I'm going to add a few more.

[Joseph Pecoraro]

> Yes, I think I can drop the entire variable. Existing tests pass I'm going
> to add a few more.

Nope I lied, existing tests did not pass. Leaving patch as it is!

[Joseph Pecoraro]

Comment on attachment 306586 [details]
[PATCH] Proposed Fix

View in context: https://bugs.webkit.org/attachment.cgi?id=306586&action=review

>> Source/JavaScriptCore/parser/Lexer.cpp:1994
>> +            if ((m_atLineStart || m_terminator) && m_current == '>') {
> 
> I might be able to just drop m_atLineStart entirely and just use m_terminator.

Nope. Other tests failed. Patch is reviewable as is.

[Joseph Pecoraro]

Ping reviewers

[Keith Miller]

Comment on attachment 306586 [details]
[PATCH] Proposed Fix

View in context: https://bugs.webkit.org/attachment.cgi?id=306586&action=review

r=me.

> LayoutTests/js/parser-xml-close-comment-expected.txt:1
> +Test to ensure correct handling of --> as a single line comment when at the beginning of a line or preceeded by a multi-line comment

Wow, I didn't know this was a thing... weird

[WebKit Commit Bot]

Comment on attachment 306586 [details]
[PATCH] Proposed Fix

Clearing flags on attachment: 306586

Committed r215235: <http://trac.webkit.org/changeset/215235>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.