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LibJS/Bytecode: Use LHS identifier as function name on logical assign

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This now creates a function named `x`:

    x ||= function() { }

9 new passes on test262. :^)
This commit is contained in:
Andreas Kling 2023-06-26 15:26:46 +02:00
commit 55531e5cda
Notes: sideshowbarker 2024-07-17 11:33:34 +09:00
1 changed files with 5 additions and 1 deletions
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6
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
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@ -493,7 +493,11 @@ Bytecode::CodeGenerationErrorOr<void> AssignmentExpression::generate_bytecode(By
// if the logical assignment condition fails.
auto lhs_reg = generator.allocate_register();
generator.emit<Bytecode::Op::Store>(lhs_reg);
TRY(m_rhs->generate_bytecode(generator));
if (lhs->is_identifier())
TRY(generator.emit_named_evaluation_if_anonymous_function(*m_rhs, static_cast<Identifier const&>(*lhs).string()));
else
TRY(m_rhs->generate_bytecode(generator));
switch (m_op) {
case AssignmentOp::AdditionAssignment: