[wasm] Serialization/Deserialization of compiled module

src/wasm/wasm-js.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/api-natives.h"
 #include "src/api.h"
 #include "src/asmjs/asm-typer.h"
 #include "src/asmjs/asm-wasm-builder.h"
 #include "src/assert-scope.h"
 #include "src/ast/ast.h"
@@ skipping 300 matching lines @@
   i::wasm::ModuleResult result = i::wasm::DecodeWasmModule(
       i_isolate, &zone, buffer.start, buffer.end, false, i::wasm::kWasmOrigin);
   std::unique_ptr<const i::wasm::WasmModule> decoded_module(result.val);
   if (result.failed()) {
     thrower->Failed("", result);
     return nothing;
   }
   i::MaybeHandle<i::FixedArray> compiled_module =
       decoded_module->CompileFunctions(i_isolate, thrower);
   if (compiled_module.is_null()) return nothing;
-  Local<Context> context = isolate->GetCurrentContext();
-  i::Handle<i::Context> i_context = Utils::OpenHandle(*context);
-  i::Handle<i::JSFunction> module_cons(i_context->wasm_module_constructor());
-  i::Handle<i::JSObject> module_obj =
-      i_isolate->factory()->NewJSObject(module_cons);
-  module_obj->SetInternalField(0, *compiled_module.ToHandleChecked());
-  i::Handle<i::Object> module_ref = Utils::OpenHandle(*source);
-  i::Handle<i::Symbol> module_sym(i_context->wasm_module_sym());
-  i::Object::SetProperty(module_obj, module_sym, module_ref, i::STRICT).Check();
 
-  return module_obj;
+  return i::wasm::CreateCompiledModuleObject(i_isolate,
+                                             compiled_module.ToHandleChecked());
 }
 
 void WebAssemblyCompile(const v8::FunctionCallbackInfo<v8::Value>& args) {
   v8::Isolate* isolate = args.GetIsolate();
   HandleScope scope(isolate);
   ErrorThrower thrower(reinterpret_cast<i::Isolate*>(isolate),
                        "WebAssembly.compile()");
 
   if (args.Length() < 1) {
     thrower.Error("Argument 0 must be a buffer source");
@@ skipping 216 matching lines @@
     int unused_property_fields = in_object_properties - pre_allocated;
     Handle<Map> map = Map::CopyInitialMap(
         prev_map, instance_size, in_object_properties, unused_property_fields);
 
     context->set_wasm_function_map(*map);
   }
 }
 
 }  // namespace internal
 }  // namespace v8