mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-01-26 19:22:30 -05:00
b7e5f08e56
To no one's surprise, this patch is pretty big - this is possibly the most used AO of all of them. Definitely worth it though.
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/*
|
|
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/GlobalObject.h>
|
|
#include <LibJS/Runtime/TypedArray.h>
|
|
#include <LibWeb/Bindings/WindowObject.h>
|
|
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
|
|
#include <LibWeb/WebAssembly/WebAssemblyTableConstructor.h>
|
|
#include <LibWeb/WebAssembly/WebAssemblyTableObject.h>
|
|
#include <LibWeb/WebAssembly/WebAssemblyTablePrototype.h>
|
|
|
|
namespace Web::Bindings {
|
|
|
|
WebAssemblyTableConstructor::WebAssemblyTableConstructor(JS::GlobalObject& global_object)
|
|
: NativeFunction(*global_object.function_prototype())
|
|
{
|
|
}
|
|
|
|
WebAssemblyTableConstructor::~WebAssemblyTableConstructor()
|
|
{
|
|
}
|
|
|
|
JS::Value WebAssemblyTableConstructor::call()
|
|
{
|
|
vm().throw_exception<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "WebAssembly.Table");
|
|
return {};
|
|
}
|
|
|
|
JS::Value WebAssemblyTableConstructor::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 element_value = TRY_OR_DISCARD(descriptor->get("element"));
|
|
if (!element_value.is_string()) {
|
|
vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::InvalidHint, element_value.to_string_without_side_effects());
|
|
return {};
|
|
}
|
|
auto& element = element_value.as_string().string();
|
|
|
|
Optional<Wasm::ValueType> reference_type;
|
|
if (element == "anyfunc"sv)
|
|
reference_type = Wasm::ValueType(Wasm::ValueType::FunctionReference);
|
|
else if (element == "externref"sv)
|
|
reference_type = Wasm::ValueType(Wasm::ValueType::ExternReference);
|
|
|
|
if (!reference_type.has_value()) {
|
|
vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::InvalidHint, element);
|
|
return {};
|
|
}
|
|
|
|
auto initial_value = TRY_OR_DISCARD(descriptor->get("initial"));
|
|
auto maximum_value = TRY_OR_DISCARD(descriptor->get("maximum"));
|
|
|
|
auto initial = initial_value.to_u32(global_object);
|
|
if (vm.exception())
|
|
return {};
|
|
|
|
Optional<u32> maximum;
|
|
|
|
if (!maximum_value.is_undefined()) {
|
|
maximum = maximum_value.to_u32(global_object);
|
|
if (vm.exception())
|
|
return {};
|
|
}
|
|
|
|
if (maximum.has_value() && maximum.value() < initial) {
|
|
vm.throw_exception<JS::RangeError>(global_object, "maximum should be larger than or equal to initial");
|
|
return {};
|
|
}
|
|
|
|
auto value_value = TRY_OR_DISCARD(descriptor->get("value"));
|
|
auto reference_value = [&]() -> Optional<Wasm::Value> {
|
|
if (value_value.is_undefined())
|
|
return Wasm::Value(*reference_type, 0ull);
|
|
|
|
return to_webassembly_value(value_value, *reference_type, global_object);
|
|
}();
|
|
|
|
if (!reference_value.has_value())
|
|
return {};
|
|
|
|
auto& reference = reference_value->value().get<Wasm::Reference>();
|
|
|
|
auto address = WebAssemblyObject::s_abstract_machine.store().allocate(Wasm::TableType { *reference_type, Wasm::Limits { initial, maximum } });
|
|
if (!address.has_value()) {
|
|
vm.throw_exception<JS::TypeError>(global_object, "Wasm Table allocation failed");
|
|
return {};
|
|
}
|
|
|
|
auto& table = *WebAssemblyObject::s_abstract_machine.store().get(*address);
|
|
for (auto& element : table.elements())
|
|
element = reference;
|
|
|
|
return vm.heap().allocate<WebAssemblyTableObject>(global_object, global_object, *address);
|
|
}
|
|
|
|
void WebAssemblyTableConstructor::initialize(JS::GlobalObject& global_object)
|
|
{
|
|
auto& vm = this->vm();
|
|
auto& window = static_cast<WindowObject&>(global_object);
|
|
|
|
NativeFunction::initialize(global_object);
|
|
define_direct_property(vm.names.prototype, &window.ensure_web_prototype<WebAssemblyTablePrototype>("WebAssemblyTablePrototype"), 0);
|
|
define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
|
|
}
|
|
|
|
}
|