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LibWeb: Add the WebAssembly.Instance constructor

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Ali Mohammad Pur 2021-07-01 13:41:15 +04:30 • committed by Ali Mohammad Pur
parent de4cbc8f08
commit 8acc8339d1
6 changed files with 173 additions and 50 deletions
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65
Userland/Libraries/LibWeb/WebAssembly/WebAssemblyInstanceConstructor.cpp Normal file
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/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Heap/Heap.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibWeb/Bindings/WindowObject.h>
#include <LibWeb/WebAssembly/WebAssemblyInstanceConstructor.h>
#include <LibWeb/WebAssembly/WebAssemblyInstanceObject.h>
#include <LibWeb/WebAssembly/WebAssemblyInstanceObjectPrototype.h>
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
namespace Web::Bindings {
WebAssemblyInstanceConstructor::WebAssemblyInstanceConstructor(JS::GlobalObject& global_object)
: NativeFunction(*global_object.function_prototype())
{
}
WebAssemblyInstanceConstructor::~WebAssemblyInstanceConstructor()
{
}
JS::Value WebAssemblyInstanceConstructor::call()
{
vm().throw_exception<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "WebAssemblyInstance");
return {};
}
JS::Value WebAssemblyInstanceConstructor::construct(FunctionObject&)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
auto module_argument = vm.argument(0).to_object(global_object);
if (vm.exception())
return {};
if (!is<WebAssemblyModuleObject>(module_argument)) {
vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::NotA, "WebAssembly.Module");
return {};
}
auto& module_object = static_cast<WebAssemblyModuleObject&>(*module_argument);
auto result = WebAssemblyObject::instantiate_module(module_object.module(), vm, global_object);
if (result.is_error()) {
vm.throw_exception(global_object, result.release_error());
return {};
}
return heap().allocate<WebAssemblyInstanceObject>(global_object, global_object, result.value());
}
void WebAssemblyInstanceConstructor::initialize(JS::GlobalObject& global_object)
{
auto& vm = this->vm();
auto& window = static_cast<WindowObject&>(global_object);
NativeFunction::initialize(global_object);
define_property(vm.names.prototype, &window.ensure_web_prototype<WebAssemblyInstancePrototype>("WebAssemblyInstancePrototype"));
define_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
}
}