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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/WebAssemblyMemoryConstructor.h>
#include <LibWeb/WebAssembly/WebAssemblyMemoryPrototype.h>
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
namespace Web::Bindings {
WebAssemblyMemoryConstructor::WebAssemblyMemoryConstructor(JS::GlobalObject& global_object)
: NativeFunction(*global_object.function_prototype())
{
}
WebAssemblyMemoryConstructor::~WebAssemblyMemoryConstructor()
{
}
JS::Value WebAssemblyMemoryConstructor::call()
{
vm().throw_exception<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "WebAssemblyMemory");
return {};
}
JS::Value WebAssemblyMemoryConstructor::construct(FunctionObject&)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
auto descriptor = vm.argument(0).to_object(global_object);
if (vm.exception())
return {};
auto initial_value = descriptor->get_own_property("initial", {}, JS::AllowSideEffects::No);
auto maximum_value = descriptor->get_own_property("maximum", {}, JS::AllowSideEffects::No);
if (initial_value.is_empty()) {
vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::NotA, "Number");
return {};
}
auto initial = initial_value.to_u32(global_object);
if (vm.exception())
return {};
Optional<u32> maximum;
if (!maximum_value.is_empty()) {
maximum = maximum_value.to_u32(global_object);
if (vm.exception())
return {};
}
auto address = WebAssemblyObject::s_abstract_machine.store().allocate(Wasm::MemoryType { Wasm::Limits { initial, maximum } });
if (!address.has_value()) {
vm.throw_exception<JS::TypeError>(global_object, "Wasm Memory allocation failed");
return {};
}
return vm.heap().allocate<WebAssemblyMemoryObject>(global_object, global_object, *address);
}
void WebAssemblyMemoryConstructor::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<WebAssemblyMemoryPrototype>("WebAssemblyMemoryPrototype"));
define_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
}
}
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