mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-07-28 11:49:44 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 10

LibJS: Disallow unqualified deletes in strict mode

Browse source
This commit is contained in:
davidot 2021-07-12 01:32:24 +02:00 • committed by Andreas Kling
commit a6263150be
Notes: sideshowbarker 2024-07-18 08:39:43 +09:00
1 changed files with 8 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Userland/Libraries/LibJS/Parser.cpp
View file

@ -923,9 +923,15 @@ NonnullRefPtr<Expression> Parser::parse_unary_prefixed_expression()
case TokenType::Void:
consume();
return create_ast_node<UnaryExpression>({ m_state.current_token.filename(), rule_start.position(), position() }, UnaryOp::Void, parse_expression(precedence, associativity));
case TokenType::Delete:
case TokenType::Delete: {
consume();
return create_ast_node<UnaryExpression>({ m_state.current_token.filename(), rule_start.position(), position() }, UnaryOp::Delete, parse_expression(precedence, associativity));
auto rhs_start = position();
auto rhs = parse_expression(precedence, associativity);
if (is<Identifier>(*rhs) && m_state.strict_mode) {
syntax_error("Delete of an unqualified identifier in strict mode.", rhs_start);
}
return create_ast_node<UnaryExpression>({ m_state.current_token.filename(), rule_start.position(), position() }, UnaryOp::Delete, move(rhs));
}
default:
expected("primary expression");
consume();