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JSSpecCompiler: Parse "the *this* value" in expressions

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Dan Klishch 2024-01-21 00:28:28 -05:00 • committed by Andrew Kaster
parent ddf26a768c
commit 3e6a07154b
4 changed files with 39 additions and 0 deletions
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15
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/Parser/TextParser.cpp
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@ -194,6 +194,18 @@ TextParseErrorOr<Tree> TextParser::parse_list_initialization()
return make_ref_counted<List>(move(elements));
}
TextParseErrorOr<Tree> TextParser::parse_the_this_value()
{
auto rollback = rollback_point();
TRY(consume_word("the"sv));
TRY(consume_token(TokenType::WellKnownValue, "this"sv));
TRY(consume_word("value"sv));
rollback.disarm();
return make_ref_counted<WellKnownNode>(WellKnownNode::Type::This);
}
// <value> :== <identifier> | <well_known_value> | <enumerator> | <number> | <string> | <list_initialization> | <record_initialization>
TextParseErrorOr<Tree> TextParser::parse_value()
{
@ -232,6 +244,9 @@ TextParseErrorOr<Tree> TextParser::parse_value()
if (auto record_initialization = parse_record_direct_list_initialization(); !record_initialization.is_error())
return record_initialization.release_value();
if (auto the_this_value = parse_the_this_value(); !the_this_value.is_error())
return the_this_value.release_value();
return TextParseError {};
}

1
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/Parser/TextParser.h
View file

@ -78,6 +78,7 @@ private:
TextParseErrorOr<Tree> parse_record_direct_list_initialization();
TextParseErrorOr<Vector<Tree>> parse_function_arguments();
TextParseErrorOr<Tree> parse_list_initialization();
TextParseErrorOr<Tree> parse_the_this_value();
TextParseErrorOr<Tree> parse_value();
TextParseErrorOr<Tree> parse_expression();
TextParseErrorOr<Tree> parse_condition();