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LibJS: "-->" preceded by token on same line isn't start of HTML-like comment

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B.1.3 HTML-like Comments

The syntax and semantics of 11.4 is extended as follows except that this
extension is not allowed when parsing source code using the goal symbol
Module:

Syntax (only relevant part included)

    SingleLineHTMLCloseComment ::
        LineTerminatorSequence HTMLCloseComment

    HTMLCloseComment ::
        WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]

Fixes #3810.
This commit is contained in:
Linus Groh 2020-10-29 17:55:24 +00:00 • committed by Andreas Kling
parent a10d09faba
commit 69845ae460
3 changed files with 27 additions and 12 deletions
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2
Libraries/LibJS/Lexer.h
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@ -50,7 +50,7 @@ private:
bool is_line_terminator() const;
bool is_identifier_start() const;
bool is_identifier_middle() const;
bool is_line_comment_start() const;
bool is_line_comment_start(bool line_has_token_yet) const;
bool is_block_comment_start() const;
bool is_block_comment_end() const;
bool is_numeric_literal_start() const;