mirror of
https://github.com/RGBCube/serenity
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6e19ab2bbc
We have a new, improved string type coming up in AK (OOM aware, no null state), and while it's going to use UTF-8, the name UTF8String is a mouthful - so let's free up the String name by renaming the existing class. Making the old one have an annoying name will hopefully also help with quick adoption :^)
83 lines
2.8 KiB
C++
83 lines
2.8 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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#pragma once
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#include <LibJS/Runtime/Object.h>
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#include <LibWasm/AbstractMachine/AbstractMachine.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/WebAssembly/WebAssemblyInstanceObjectPrototype.h>
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namespace Web::Bindings {
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class WebAssemblyMemoryObject;
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class WebAssemblyTableObject;
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JS::ThrowCompletionOr<size_t> parse_module(JS::VM&, JS::Object* buffer);
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JS::NativeFunction* create_native_function(JS::VM&, Wasm::FunctionAddress address, DeprecatedString const& name);
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JS::Value to_js_value(JS::VM&, Wasm::Value& wasm_value);
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JS::ThrowCompletionOr<Wasm::Value> to_webassembly_value(JS::VM&, JS::Value value, Wasm::ValueType const& type);
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class WebAssemblyObject final : public JS::Object {
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JS_OBJECT(WebAssemblyObject, JS::Object);
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public:
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explicit WebAssemblyObject(JS::Realm&);
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virtual void initialize(JS::Realm&) override;
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virtual ~WebAssemblyObject() override = default;
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virtual void visit_edges(Cell::Visitor&) override;
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static JS::ThrowCompletionOr<size_t> instantiate_module(JS::VM&, Wasm::Module const&);
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struct CompiledWebAssemblyModule {
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explicit CompiledWebAssemblyModule(Wasm::Module&& module)
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: module(move(module))
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{
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}
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Wasm::Module module;
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};
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// FIXME: These should just be members of the module (instance) object,
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// but the module needs to stick around while its instance is alive
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// so ideally this would be a refcounted object, shared between
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// WebAssemblyModuleObject's and WebAssemblyInstantiatedModuleObject's.
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struct ModuleCache {
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HashMap<Wasm::FunctionAddress, JS::FunctionObject*> function_instances;
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HashMap<Wasm::MemoryAddress, WebAssemblyMemoryObject*> memory_instances;
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HashMap<Wasm::TableAddress, WebAssemblyTableObject*> table_instances;
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};
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struct GlobalModuleCache {
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HashMap<Wasm::FunctionAddress, JS::NativeFunction*> function_instances;
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};
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static NonnullOwnPtrVector<CompiledWebAssemblyModule> s_compiled_modules;
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static NonnullOwnPtrVector<Wasm::ModuleInstance> s_instantiated_modules;
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static Vector<ModuleCache> s_module_caches;
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static GlobalModuleCache s_global_cache;
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static Wasm::AbstractMachine s_abstract_machine;
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private:
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JS_DECLARE_NATIVE_FUNCTION(validate);
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JS_DECLARE_NATIVE_FUNCTION(compile);
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JS_DECLARE_NATIVE_FUNCTION(instantiate);
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};
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class WebAssemblyMemoryObject final : public JS::Object {
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JS_OBJECT(WebAssemblyMemoryObject, JS::Object);
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public:
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WebAssemblyMemoryObject(JS::Realm&, Wasm::MemoryAddress);
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virtual ~WebAssemblyMemoryObject() override = default;
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auto address() const { return m_address; }
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private:
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Wasm::MemoryAddress m_address;
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};
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}
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