diff options
Diffstat (limited to 'Userland/Libraries/LibJS/Bytecode')
| -rw-r--r-- | Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp b/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp index 0e00457160..a952ded98f 100644 --- a/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp +++ b/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp @@ -176,6 +176,8 @@ Bytecode::CodeGenerationErrorOr<void> ScopeNode::generate_bytecode(Bytecode::Gen if (!declared_function_names.contains(function_name) && !declared_var_names.contains(function_name)) { // i. Perform ? env.CreateGlobalVarBinding(F, false). generator.emit<Bytecode::Op::CreateVariable>(index, Bytecode::Op::EnvironmentMode::Var, false); + generator.emit<Bytecode::Op::LoadImmediate>(js_undefined()); + generator.emit<Bytecode::Op::SetVariable>(index, Bytecode::Op::SetVariable::InitializationMode::Initialize, Bytecode::Op::EnvironmentMode::Var); // ii. Append F to declaredFunctionOrVarNames. declared_function_names.set(function_name); @@ -848,7 +850,7 @@ Bytecode::CodeGenerationErrorOr<void> FunctionDeclaration::generate_bytecode(Byt if (m_is_hoisted) { auto index = generator.intern_identifier(name()); generator.emit<Bytecode::Op::GetVariable>(index); - generator.emit<Bytecode::Op::SetVariable>(index, Bytecode::Op::SetVariable::InitializationMode::Initialize, Bytecode::Op::EnvironmentMode::Var); + generator.emit<Bytecode::Op::SetVariable>(index, Bytecode::Op::SetVariable::InitializationMode::Set, Bytecode::Op::EnvironmentMode::Var); } return {}; } @@ -1127,10 +1129,11 @@ Bytecode::CodeGenerationErrorOr<void> VariableDeclaration::generate_bytecode(Byt generator.emit<Bytecode::Op::LoadImmediate>(js_undefined()); auto initialization_mode = is_lexical_declaration() ? Bytecode::Op::SetVariable::InitializationMode::Initialize : Bytecode::Op::SetVariable::InitializationMode::Set; + auto environment_mode = is_lexical_declaration() ? Bytecode::Op::EnvironmentMode::Lexical : Bytecode::Op::EnvironmentMode::Var; TRY(declarator.target().visit( [&](NonnullRefPtr<Identifier> const& id) -> Bytecode::CodeGenerationErrorOr<void> { - generator.emit<Bytecode::Op::SetVariable>(generator.intern_identifier(id->string()), initialization_mode); + generator.emit<Bytecode::Op::SetVariable>(generator.intern_identifier(id->string()), initialization_mode, environment_mode); return {}; }, [&](NonnullRefPtr<BindingPattern> const& pattern) -> Bytecode::CodeGenerationErrorOr<void> { |