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https://github.com/RGBCube/serenity
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da856d7742
This is another major milestone on our journey towards removing global VM exception state :^) Does pretty much exactly what it says on the tin: updating ASTNode::execute() to return a Completion instead of a plain value. This will *also* allow us to eventually remove the non-standard unwinding mechanism and purely rely on the various completion types.
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
/*
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/AsyncFunctionConstructor.h>
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#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
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#include <LibJS/Runtime/FunctionConstructor.h>
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#include <LibJS/Runtime/FunctionObject.h>
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#include <LibJS/Runtime/GlobalObject.h>
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namespace JS {
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AsyncFunctionConstructor::AsyncFunctionConstructor(GlobalObject& global_object)
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: NativeFunction(vm().names.AsyncFunction.as_string(), *global_object.function_prototype())
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{
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}
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void AsyncFunctionConstructor::initialize(GlobalObject& global_object)
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{
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auto& vm = this->vm();
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NativeFunction::initialize(global_object);
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// 27.7.2.2 AsyncFunction.prototype, https://tc39.es/ecma262/#sec-async-function-constructor-prototype
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define_direct_property(vm.names.prototype, global_object.async_function_prototype(), 0);
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define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
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}
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// 27.7.1.1 AsyncFunction ( p1, p2, … , pn, body ), https://tc39.es/ecma262/#sec-async-function-constructor-arguments
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ThrowCompletionOr<Value> AsyncFunctionConstructor::call()
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{
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return TRY(construct(*this));
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}
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// 27.7.1.1 AsyncFunction ( p1, p2, … , pn, body ), https://tc39.es/ecma262/#sec-async-function-constructor-arguments
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ThrowCompletionOr<Object*> AsyncFunctionConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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auto function = TRY(FunctionConstructor::create_dynamic_function_node(global_object(), new_target, FunctionKind::Async));
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OwnPtr<Interpreter> local_interpreter;
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Interpreter* interpreter = vm.interpreter_if_exists();
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if (!interpreter) {
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local_interpreter = Interpreter::create_with_existing_realm(*realm());
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interpreter = local_interpreter.ptr();
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}
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VM::InterpreterExecutionScope scope(*interpreter);
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auto result = TRY(function->execute(*interpreter, global_object())).release_value();
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VERIFY(result.is_object() && is<ECMAScriptFunctionObject>(result.as_object()));
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return &result.as_object();
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}
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}
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