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LibJS: Allow labelled functions in certain contexts

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Also disallow duplicated labels.
This commit is contained in:
davidot 2021-07-25 01:01:22 +02:00 • committed by Linus Groh
parent 4cc95ae39d
commit b16c02d6b4
2 changed files with 45 additions and 11 deletions
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10
Userland/Libraries/LibJS/Parser.h
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@ -50,7 +50,13 @@ public:
};
NonnullRefPtr<Declaration> parse_declaration();
NonnullRefPtr<Statement> parse_statement();
enum class AllowLabelledFunction {
No,
Yes
};
NonnullRefPtr<Statement> parse_statement(AllowLabelledFunction allow_labelled_function = AllowLabelledFunction::No);
NonnullRefPtr<BlockStatement> parse_block_statement();
NonnullRefPtr<BlockStatement> parse_block_statement(bool& is_strict, bool error_on_binding = false);
NonnullRefPtr<ReturnStatement> parse_return_statement();
@ -91,7 +97,7 @@ public:
NonnullRefPtr<ExportStatement> parse_export_statement(Program& program);
RefPtr<FunctionExpression> try_parse_arrow_function_expression(bool expect_parens);
RefPtr<Statement> try_parse_labelled_statement();
RefPtr<Statement> try_parse_labelled_statement(AllowLabelledFunction allow_function);
RefPtr<MetaProperty> try_parse_new_target_expression();
struct Error {