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https://github.com/RGBCube/serenity
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79d8326370
Not just "Foo" or "WebAssemblyFoo". This is how it's accessed from the outside (JS). Also fix one case of "not an" => "not a".
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/*
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* Copyright (c) 2021, Ali Mohammad Pur <mpfard@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/Heap/Heap.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibWeb/Bindings/WindowObject.h>
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#include <LibWeb/WebAssembly/WebAssemblyMemoryConstructor.h>
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#include <LibWeb/WebAssembly/WebAssemblyMemoryPrototype.h>
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#include <LibWeb/WebAssembly/WebAssemblyObject.h>
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namespace Web::Bindings {
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WebAssemblyMemoryConstructor::WebAssemblyMemoryConstructor(JS::GlobalObject& global_object)
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: NativeFunction(*global_object.function_prototype())
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{
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}
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WebAssemblyMemoryConstructor::~WebAssemblyMemoryConstructor()
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{
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}
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JS::Value WebAssemblyMemoryConstructor::call()
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{
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vm().throw_exception<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "WebAssembly.Memory");
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return {};
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}
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JS::Value WebAssemblyMemoryConstructor::construct(FunctionObject&)
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{
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auto& vm = this->vm();
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auto& global_object = this->global_object();
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auto descriptor = vm.argument(0).to_object(global_object);
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if (vm.exception())
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return {};
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auto initial_value = descriptor->get_without_side_effects("initial");
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auto maximum_value = descriptor->get_without_side_effects("maximum");
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if (initial_value.is_empty()) {
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vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::NotA, "Number");
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return {};
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}
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auto initial = initial_value.to_u32(global_object);
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if (vm.exception())
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return {};
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Optional<u32> maximum;
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if (!maximum_value.is_empty()) {
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maximum = maximum_value.to_u32(global_object);
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if (vm.exception())
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return {};
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}
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auto address = WebAssemblyObject::s_abstract_machine.store().allocate(Wasm::MemoryType { Wasm::Limits { initial, maximum } });
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if (!address.has_value()) {
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vm.throw_exception<JS::TypeError>(global_object, "Wasm Memory allocation failed");
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return {};
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}
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return vm.heap().allocate<WebAssemblyMemoryObject>(global_object, global_object, *address);
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}
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void WebAssemblyMemoryConstructor::initialize(JS::GlobalObject& global_object)
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{
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auto& vm = this->vm();
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auto& window = static_cast<WindowObject&>(global_object);
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NativeFunction::initialize(global_object);
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define_property(vm.names.prototype, &window.ensure_web_prototype<WebAssemblyMemoryPrototype>("WebAssemblyMemoryPrototype"));
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define_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
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}
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}
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