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/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/Handle.h>
#include <LibJS/Runtime/Completion.h>
#include <LibJS/Runtime/Value.h>
#include <LibWasm/AbstractMachine/AbstractMachine.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Forward.h>
namespace Web::WebAssembly {
void visit_edges(JS::Cell::Visitor&);
bool validate(JS::VM&, JS::Handle<JS::Object>& bytes);
WebIDL::ExceptionOr<JS::Value> compile(JS::VM&, JS::Handle<JS::Object>& bytes);
WebIDL::ExceptionOr<JS::Value> instantiate(JS::VM&, JS::Handle<JS::Object>& bytes, Optional<JS::Handle<JS::Object>>& import_object);
WebIDL::ExceptionOr<JS::Value> instantiate(JS::VM&, Module const& module_object, Optional<JS::Handle<JS::Object>>& import_object);
namespace Detail {
JS::ThrowCompletionOr<size_t> instantiate_module(JS::VM&, Wasm::Module const&);
JS::ThrowCompletionOr<size_t> parse_module(JS::VM&, JS::Object* buffer);
JS::NativeFunction* create_native_function(JS::VM&, Wasm::FunctionAddress address, DeprecatedString const& name);
JS::ThrowCompletionOr<Wasm::Value> to_webassembly_value(JS::VM&, JS::Value value, Wasm::ValueType const& type);
JS::Value to_js_value(JS::VM&, Wasm::Value& wasm_value);
struct CompiledWebAssemblyModule {
explicit CompiledWebAssemblyModule(Wasm::Module&& module)
: module(move(module))
{
}
Wasm::Module module;
};
// FIXME: These should just be members of the module (instance) object, but the module needs to stick
// around while its instance is alive so ideally this would be a refcounted object, shared between
// WebAssemblyModuleObject's and WebAssemblyInstantiatedModuleObject's.
struct ModuleCache {
HashMap<Wasm::FunctionAddress, JS::GCPtr<JS::FunctionObject>> function_instances;
HashMap<Wasm::MemoryAddress, JS::GCPtr<WebAssembly::Memory>> memory_instances;
HashMap<Wasm::TableAddress, JS::GCPtr<WebAssembly::Table>> table_instances;
};
struct GlobalModuleCache {
HashMap<Wasm::FunctionAddress, JS::GCPtr<JS::NativeFunction>> function_instances;
};
extern Vector<NonnullOwnPtr<CompiledWebAssemblyModule>> s_compiled_modules;
extern Vector<NonnullOwnPtr<Wasm::ModuleInstance>> s_instantiated_modules;
extern Vector<ModuleCache> s_module_caches;
extern GlobalModuleCache s_global_cache;
extern Wasm::AbstractMachine s_abstract_machine;
}
}
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