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LibJS/JIT: Support the EnterObjectEnvironment bytecode instruction
We can now use `with` statements in jitted code. :^)
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Notes:
sideshowbarker
2024-07-17 03:03:44 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/cb7169d73f Pull-request: https://github.com/SerenityOS/serenity/pull/21905
@ -444,6 +444,13 @@ void Interpreter::catch_exception()
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vm().running_execution_context().lexical_environment = context.lexical_environment;
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}
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void Interpreter::enter_object_environment(Object& object)
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{
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auto& old_environment = vm().running_execution_context().lexical_environment;
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saved_lexical_environment_stack().append(old_environment);
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vm().running_execution_context().lexical_environment = new_object_environment(object, true, old_environment);
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}
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ThrowCompletionOr<NonnullRefPtr<Bytecode::Executable>> compile(VM& vm, ASTNode const& node, FunctionKind kind, DeprecatedFlyString const& name)
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{
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auto executable_result = Bytecode::Generator::generate(node, kind);
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@ -743,11 +750,8 @@ ThrowCompletionOr<void> CreateLexicalEnvironment::execute_impl(Bytecode::Interpr
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ThrowCompletionOr<void> EnterObjectEnvironment::execute_impl(Bytecode::Interpreter& interpreter) const
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{
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auto& vm = interpreter.vm();
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auto& old_environment = vm.running_execution_context().lexical_environment;
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interpreter.saved_lexical_environment_stack().append(old_environment);
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auto object = TRY(interpreter.accumulator().to_object(vm));
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vm.running_execution_context().lexical_environment = new_object_environment(object, true, old_environment);
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auto object = TRY(interpreter.accumulator().to_object(interpreter.vm()));
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interpreter.enter_object_environment(*object);
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return {};
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}
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@ -76,6 +76,8 @@ public:
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void leave_unwind_context();
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void catch_exception();
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void enter_object_environment(Object&);
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Executable& current_executable() { return *m_current_executable; }
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Executable const& current_executable() const { return *m_current_executable; }
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BasicBlock const& current_block() const { return *m_current_block; }
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@ -1988,6 +1988,20 @@ void Compiler::compile_leave_lexical_environment(Bytecode::Op::LeaveLexicalEnvir
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native_call((void*)cxx_leave_lexical_environment);
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}
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static Value cxx_enter_object_environment(VM& vm, Value value)
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{
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auto object = TRY_OR_SET_EXCEPTION(value.to_object(vm));
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vm.bytecode_interpreter().enter_object_environment(*object);
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return {};
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}
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void Compiler::compile_enter_object_environment(Bytecode::Op::EnterObjectEnvironment const&)
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{
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load_accumulator(ARG1);
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native_call((void*)cxx_enter_object_environment);
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check_exception();
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}
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static Value cxx_concat_string(VM& vm, Value lhs, Value rhs)
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{
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auto string = TRY_OR_SET_EXCEPTION(rhs.to_primitive_string(vm));
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@ -86,6 +86,7 @@ private:
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O(Catch, catch) \
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O(CreateLexicalEnvironment, create_lexical_environment) \
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O(LeaveLexicalEnvironment, leave_lexical_environment) \
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O(EnterObjectEnvironment, enter_object_environment) \
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O(ToNumeric, to_numeric) \
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O(ResolveThisBinding, resolve_this_binding) \
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O(Return, return) \
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