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LibJS/Bytecode: Generate bytecode for deleting super properties

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Timothy Flynn 2023-07-06 17:10:40 -04:00 • committed by Andreas Kling
parent 0d50e5eeee
commit 23daf5097b
5 changed files with 97 additions and 0 deletions
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15
Userland/Libraries/LibJS/Bytecode/Generator.cpp
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@ -304,6 +304,21 @@ CodeGenerationErrorOr<void> Generator::emit_delete_reference(JS::ASTNode const&
if (is<MemberExpression>(node)) {
auto& expression = static_cast<MemberExpression const&>(node);
// https://tc39.es/ecma262/#sec-super-keyword-runtime-semantics-evaluation
if (is<SuperExpression>(expression.object())) {
auto super_reference = TRY(emit_super_reference(expression));
if (super_reference.referenced_name.has_value()) {
emit<Bytecode::Op::DeleteByValueWithThis>(super_reference.this_value, *super_reference.referenced_name);
} else {
auto identifier_table_ref = intern_identifier(verify_cast<Identifier>(expression.property()).string());
emit<Bytecode::Op::DeleteByIdWithThis>(super_reference.this_value, identifier_table_ref);
}
return {};
}
TRY(expression.object().generate_bytecode(*this));
if (expression.is_computed()) {