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/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/WebAssembly/WebAssemblyMemoryConstructor.h>
#include <LibWeb/WebAssembly/WebAssemblyMemoryPrototype.h>
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
namespace Web::Bindings {
WebAssemblyMemoryConstructor::WebAssemblyMemoryConstructor(JS::Realm& realm)
: NativeFunction(*realm.intrinsics().function_prototype())
{
}
WebAssemblyMemoryConstructor::~WebAssemblyMemoryConstructor() = default;
JS::ThrowCompletionOr<JS::Value> WebAssemblyMemoryConstructor::call()
{
return vm().throw_completion<JS::TypeError>(JS::ErrorType::ConstructorWithoutNew, "WebAssembly.Memory");
}
JS::ThrowCompletionOr<JS::NonnullGCPtr<JS::Object>> WebAssemblyMemoryConstructor::construct(FunctionObject&)
{
auto& vm = this->vm();
auto& realm = *vm.current_realm();
auto descriptor = TRY(vm.argument(0).to_object(vm));
auto initial_value = TRY(descriptor->get("initial"));
auto maximum_value = TRY(descriptor->get("maximum"));
if (!initial_value.is_number())
return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Number");
u32 initial = TRY(initial_value.to_u32(vm));
Optional<u32> maximum;
if (!maximum_value.is_undefined())
maximum = TRY(maximum_value.to_u32(vm));
auto address = WebAssemblyObject::s_abstract_machine.store().allocate(Wasm::MemoryType { Wasm::Limits { initial, maximum } });
if (!address.has_value())
return vm.throw_completion<JS::TypeError>("Wasm Memory allocation failed"sv);
return MUST_OR_THROW_OOM(vm.heap().allocate<WebAssemblyMemoryObject>(realm, realm, *address));
}
JS::ThrowCompletionOr<void> WebAssemblyMemoryConstructor::initialize(JS::Realm& realm)
{
auto& vm = this->vm();
MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
define_direct_property(vm.names.prototype, &Bindings::ensure_web_prototype<WebAssemblyMemoryPrototype>(realm, "WebAssembly.Memory"), 0);
define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
return {};
}
}
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