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LibIDL: Also parse extended attributes after 'optional'

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From the WebIDL grammar:
(https://webidl.spec.whatwg.org/#prod-Argument)

Argument ::
    ExtendedAttributeList ArgumentRest
ArgumentRest ::
    optional TypeWithExtendedAttributes ArgumentName Default
TypeWithExtendedAttributes ::
    ExtendedAttributeList Type

One IDL file has been updated to match the spec literally, as it can now
be parsed properly.
This commit is contained in:
Linus Groh 2023-03-05 21:55:22 +00:00
parent cc1e8a4e9f
commit 725a758c66
2 changed files with 7 additions and 1 deletions
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6
Userland/Libraries/LibIDL/IDLParser.cpp
View file

@ -298,6 +298,12 @@ Vector<Parameter> Parser::parse_parameters()
bool optional = lexer.consume_specific("optional");
if (optional)
consume_whitespace();
if (lexer.consume_specific('[')) {
// Not explicitly forbidden by the grammar but unlikely to happen in practice - if it does,
// we'll have to teach the parser how to merge two sets of extended attributes.
VERIFY(extended_attributes.is_empty());
extended_attributes = parse_extended_attributes();
}
auto type = parse_type();
bool variadic = lexer.consume_specific("..."sv);
consume_whitespace();