|
@@ -0,0 +1,98 @@
|
|
|
+/*
|
|
|
+ * Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
|
|
|
+ * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
|
|
|
+ *
|
|
|
+ * SPDX-License-Identifier: BSD-2-Clause
|
|
|
+ */
|
|
|
+
|
|
|
+#include <LibJS/Runtime/FunctionObject.h>
|
|
|
+#include <LibJS/Runtime/NativeFunction.h>
|
|
|
+#include <LibJS/Runtime/Realm.h>
|
|
|
+#include <LibJS/Runtime/VM.h>
|
|
|
+#include <LibWasm/AbstractMachine/AbstractMachine.h>
|
|
|
+#include <LibWeb/Bindings/InstancePrototype.h>
|
|
|
+#include <LibWeb/Bindings/Intrinsics.h>
|
|
|
+#include <LibWeb/WebAssembly/Instance.h>
|
|
|
+#include <LibWeb/WebAssembly/Module.h>
|
|
|
+#include <LibWeb/WebAssembly/WebAssemblyObject.h>
|
|
|
+#include <LibWeb/WebAssembly/WebAssemblyTableObject.h>
|
|
|
+
|
|
|
+namespace Web::WebAssembly {
|
|
|
+
|
|
|
+WebIDL::ExceptionOr<JS::NonnullGCPtr<Instance>> Instance::construct_impl(JS::Realm& realm, Module& module, Optional<JS::Handle<JS::Object>>& import_object)
|
|
|
+{
|
|
|
+ // FIXME: Implement the importObject parameter.
|
|
|
+ (void)import_object;
|
|
|
+
|
|
|
+ auto& vm = realm.vm();
|
|
|
+
|
|
|
+ auto index = TRY(Bindings::WebAssemblyObject::instantiate_module(vm, module.module()));
|
|
|
+ return MUST_OR_THROW_OOM(vm.heap().allocate<Instance>(realm, realm, index));
|
|
|
+}
|
|
|
+
|
|
|
+Instance::Instance(JS::Realm& realm, size_t index)
|
|
|
+ : Bindings::PlatformObject(realm)
|
|
|
+ , m_exports(Object::create(realm, nullptr))
|
|
|
+ , m_index(index)
|
|
|
+{
|
|
|
+}
|
|
|
+
|
|
|
+JS::ThrowCompletionOr<void> Instance::initialize(JS::Realm& realm)
|
|
|
+{
|
|
|
+ auto& vm = this->vm();
|
|
|
+
|
|
|
+ MUST_OR_THROW_OOM(Base::initialize(realm));
|
|
|
+ set_prototype(&Bindings::ensure_web_prototype<Bindings::InstancePrototype>(realm, "WebAssembly.Instance"sv));
|
|
|
+
|
|
|
+ auto& instance = *Bindings::WebAssemblyObject::s_instantiated_modules[m_index];
|
|
|
+ auto& cache = Bindings::WebAssemblyObject::s_module_caches.at(m_index);
|
|
|
+
|
|
|
+ for (auto& export_ : instance.exports()) {
|
|
|
+ TRY(export_.value().visit(
|
|
|
+ [&](Wasm::FunctionAddress const& address) -> JS::ThrowCompletionOr<void> {
|
|
|
+ Optional<JS::GCPtr<JS::FunctionObject>> object = cache.function_instances.get(address);
|
|
|
+ if (!object.has_value()) {
|
|
|
+ object = Bindings::create_native_function(vm, address, export_.name());
|
|
|
+ cache.function_instances.set(address, *object);
|
|
|
+ }
|
|
|
+
|
|
|
+ m_exports->define_direct_property(export_.name(), *object, JS::default_attributes);
|
|
|
+ return {};
|
|
|
+ },
|
|
|
+ [&](Wasm::MemoryAddress const& address) -> JS::ThrowCompletionOr<void> {
|
|
|
+ Optional<JS::GCPtr<Bindings::WebAssemblyMemoryObject>> object = cache.memory_instances.get(address);
|
|
|
+ if (!object.has_value()) {
|
|
|
+ object = MUST_OR_THROW_OOM(heap().allocate<Web::Bindings::WebAssemblyMemoryObject>(realm, realm, address));
|
|
|
+ cache.memory_instances.set(address, *object);
|
|
|
+ }
|
|
|
+
|
|
|
+ m_exports->define_direct_property(export_.name(), *object, JS::default_attributes);
|
|
|
+ return {};
|
|
|
+ },
|
|
|
+ [&](Wasm::TableAddress const& address) -> JS::ThrowCompletionOr<void> {
|
|
|
+ Optional<JS::GCPtr<Bindings::WebAssemblyTableObject>> object = cache.table_instances.get(address);
|
|
|
+ if (!object.has_value()) {
|
|
|
+ object = MUST_OR_THROW_OOM(heap().allocate<Web::Bindings::WebAssemblyTableObject>(realm, realm, address));
|
|
|
+ cache.table_instances.set(address, *object);
|
|
|
+ }
|
|
|
+
|
|
|
+ m_exports->define_direct_property(export_.name(), *object, JS::default_attributes);
|
|
|
+ return {};
|
|
|
+ },
|
|
|
+ [&](auto const&) -> JS::ThrowCompletionOr<void> {
|
|
|
+ // FIXME: Implement other exports!
|
|
|
+ return {};
|
|
|
+ }));
|
|
|
+ }
|
|
|
+
|
|
|
+ MUST(m_exports->set_integrity_level(IntegrityLevel::Frozen));
|
|
|
+ return {};
|
|
|
+}
|
|
|
+
|
|
|
+void Instance::visit_edges(Visitor& visitor)
|
|
|
+{
|
|
|
+ Base::visit_edges(visitor);
|
|
|
+ visitor.visit(m_exports);
|
|
|
+}
|
|
|
+
|
|
|
+}
|