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LibJS: Return the allocated dst register from deleting super properties

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Even though calling delete on a super property will ultimately throw a
ReferenceError, we must return the allocated register for the result of
the delete operation (which would normally be a boolean). If the delete
operation is used in a return statement, the bytecode generator for the
return statement must be able to assume the statement had some output.
This commit is contained in:
Timothy Flynn 2024-12-13 11:50:55 -05:00 • committed by Tim Flynn
commit 5947c37637
Notes: github-actions[bot] 2024-12-14 20:09:41 +00:00
2 changed files with 12 additions and 1 deletions
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Libraries/LibJS/Bytecode/Generator.cpp
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@ -812,7 +812,7 @@ CodeGenerationErrorOr<Optional<ScopedOperand>> Generator::emit_delete_reference(
emit<Bytecode::Op::DeleteByIdWithThis>(dst, *super_reference.base, *super_reference.this_value, identifier_table_ref);
}
return Optional<ScopedOperand> {};
return dst;
}
auto object = TRY(expression.object().generate_bytecode(*this)).value();