mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 03:14:58 +00:00
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.
63 lines
2.1 KiB
C++
63 lines
2.1 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 <LibWeb/Bindings/Intrinsics.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::Realm& realm)
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: NativeFunction(*realm.intrinsics().function_prototype())
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{
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}
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WebAssemblyMemoryConstructor::~WebAssemblyMemoryConstructor() = default;
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JS::ThrowCompletionOr<JS::Value> WebAssemblyMemoryConstructor::call()
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{
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return vm().throw_completion<JS::TypeError>(JS::ErrorType::ConstructorWithoutNew, "WebAssembly.Memory");
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}
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JS::ThrowCompletionOr<JS::NonnullGCPtr<JS::Object>> WebAssemblyMemoryConstructor::construct(FunctionObject&)
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{
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auto& vm = this->vm();
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auto& realm = *vm.current_realm();
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auto descriptor = TRY(vm.argument(0).to_object(vm));
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auto initial_value = TRY(descriptor->get("initial"));
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auto maximum_value = TRY(descriptor->get("maximum"));
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if (!initial_value.is_number())
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return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Number");
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u32 initial = TRY(initial_value.to_u32(vm));
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Optional<u32> maximum;
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if (!maximum_value.is_undefined())
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maximum = TRY(maximum_value.to_u32(vm));
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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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return vm.throw_completion<JS::TypeError>("Wasm Memory allocation failed");
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return vm.heap().allocate<WebAssemblyMemoryObject>(realm, realm, *address);
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}
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JS::ThrowCompletionOr<void> WebAssemblyMemoryConstructor::initialize(JS::Realm& realm)
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{
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auto& vm = this->vm();
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MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
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define_direct_property(vm.names.prototype, &Bindings::ensure_web_prototype<WebAssemblyMemoryPrototype>(realm, "WebAssembly.Memory"), 0);
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define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
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return {};
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}
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}
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