2692db8699
Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
94 lines
3.5 KiB
C++
94 lines
3.5 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/Intrinsics.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::Realm& realm)
|
|
: NativeFunction(*realm.intrinsics().function_prototype())
|
|
{
|
|
}
|
|
|
|
WebAssemblyTableConstructor::~WebAssemblyTableConstructor() = default;
|
|
|
|
JS::ThrowCompletionOr<JS::Value> WebAssemblyTableConstructor::call()
|
|
{
|
|
return vm().throw_completion<JS::TypeError>(JS::ErrorType::ConstructorWithoutNew, "WebAssembly.Table");
|
|
}
|
|
|
|
JS::ThrowCompletionOr<JS::NonnullGCPtr<JS::Object>> WebAssemblyTableConstructor::construct(FunctionObject&)
|
|
{
|
|
auto& vm = this->vm();
|
|
auto& realm = *vm.current_realm();
|
|
|
|
auto descriptor = TRY(vm.argument(0).to_object(vm));
|
|
auto element_value = TRY(descriptor->get("element"));
|
|
if (!element_value.is_string())
|
|
return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidHint, element_value.to_string_without_side_effects());
|
|
auto element = TRY(element_value.as_string().deprecated_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())
|
|
return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidHint, element);
|
|
|
|
auto initial_value = TRY(descriptor->get("initial"));
|
|
auto maximum_value = TRY(descriptor->get("maximum"));
|
|
|
|
auto initial = TRY(initial_value.to_u32(vm));
|
|
|
|
Optional<u32> maximum;
|
|
|
|
if (!maximum_value.is_undefined())
|
|
maximum = TRY(maximum_value.to_u32(vm));
|
|
|
|
if (maximum.has_value() && maximum.value() < initial)
|
|
return vm.throw_completion<JS::RangeError>("maximum should be larger than or equal to initial");
|
|
|
|
auto value_value = TRY(descriptor->get("value"));
|
|
auto reference_value = TRY([&]() -> JS::ThrowCompletionOr<Wasm::Value> {
|
|
if (value_value.is_undefined())
|
|
return Wasm::Value(*reference_type, 0ull);
|
|
|
|
return to_webassembly_value(vm, value_value, *reference_type);
|
|
}());
|
|
|
|
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())
|
|
return vm.throw_completion<JS::TypeError>("Wasm Table allocation failed");
|
|
|
|
auto& table = *WebAssemblyObject::s_abstract_machine.store().get(*address);
|
|
for (auto& element : table.elements())
|
|
element = reference;
|
|
|
|
return vm.heap().allocate<WebAssemblyTableObject>(realm, realm, *address);
|
|
}
|
|
|
|
JS::ThrowCompletionOr<void> WebAssemblyTableConstructor::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<WebAssemblyTablePrototype>(realm, "WebAssembly.Table"), 0);
|
|
define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
|
|
|
|
return {};
|
|
}
|
|
|
|
}
|