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JSSpecCompiler: Parse true, false, this, undefined, and null

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This commit is contained in:
Dan Klishch
2024-01-20 21:41:38 -05:00
committed by Andrew Kaster
parent 86d54a8684
commit b800276347
7 changed files with 70 additions and 3 deletions
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18
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/Parser/TextParser.cpp
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@@ -298,6 +298,24 @@ TextParseErrorOr<Tree> TextParser::parse_expression()
NullableTree expression;
if (token.type == TokenType::Identifier) {
expression = make_ref_counted<UnresolvedReference>(token.data);
} else if (token.type == TokenType::WellKnownValue) {
static constexpr struct {
StringView name;
WellKnownNode::Type type;
} translations[] = {
{ "false"sv, WellKnownNode::Type::False },
{ "null"sv, WellKnownNode::Type::Null },
{ "this"sv, WellKnownNode::Type::This },
{ "true"sv, WellKnownNode::Type::True },
{ "undefined"sv, WellKnownNode::Type::Undefined },
};
for (auto [name, type] : translations) {
if (token.data == name) {
expression = make_ref_counted<WellKnownNode>(type);
break;
}
}
VERIFY(expression);
} else if (token.type == TokenType::Number) {
expression = make_ref_counted<MathematicalConstant>(MUST(Crypto::BigFraction::from_string(token.data)));
} else if (token.type == TokenType::String) {