jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibJS/Runtime/GlobalObject.h>
8#include <LibWeb/Bindings/Intrinsics.h>
9#include <LibWeb/WebAssembly/WebAssemblyInstanceConstructor.h>
10#include <LibWeb/WebAssembly/WebAssemblyInstanceObject.h>
11#include <LibWeb/WebAssembly/WebAssemblyInstanceObjectPrototype.h>
12#include <LibWeb/WebAssembly/WebAssemblyModuleObject.h>
13#include <LibWeb/WebAssembly/WebAssemblyObject.h>
14
15namespace Web::Bindings {
16
17WebAssemblyInstanceConstructor::WebAssemblyInstanceConstructor(JS::Realm& realm)
18 : NativeFunction(*realm.intrinsics().function_prototype())
19{
20}
21
22WebAssemblyInstanceConstructor::~WebAssemblyInstanceConstructor() = default;
23
24JS::ThrowCompletionOr<JS::Value> WebAssemblyInstanceConstructor::call()
25{
26 return vm().throw_completion<JS::TypeError>(JS::ErrorType::ConstructorWithoutNew, "WebAssembly.Instance");
27}
28
29JS::ThrowCompletionOr<JS::NonnullGCPtr<JS::Object>> WebAssemblyInstanceConstructor::construct(FunctionObject&)
30{
31 auto& vm = this->vm();
32 auto& realm = *vm.current_realm();
33
34 auto* module_argument = TRY(vm.argument(0).to_object(vm));
35 if (!is<WebAssemblyModuleObject>(module_argument))
36 return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "WebAssembly.Module");
37 auto& module_object = static_cast<WebAssemblyModuleObject&>(*module_argument);
38 auto result = TRY(WebAssemblyObject::instantiate_module(vm, module_object.module()));
39 return MUST_OR_THROW_OOM(heap().allocate<WebAssemblyInstanceObject>(realm, realm, result));
40}
41
42JS::ThrowCompletionOr<void> WebAssemblyInstanceConstructor::initialize(JS::Realm& realm)
43{
44 auto& vm = this->vm();
45
46 MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
47 define_direct_property(vm.names.prototype, &Bindings::ensure_web_prototype<WebAssemblyInstancePrototype>(realm, "WebAssembly.Instance"), 0);
48 define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
49
50 return {};
51}
52
53}