[wasm] Introduce WasmSharedModuleData and refactor other objects

src/api.cc

 // Copyright 2012 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.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 7315 matching lines @@
       !ToLocal<Proxy>(i::JSProxy::New(isolate, target, handler), &result);
   RETURN_ON_FAILED_EXECUTION(Proxy);
   RETURN_ESCAPED(result);
 }
 
 Local<String> WasmCompiledModule::GetWasmWireBytes() {
   i::Handle<i::JSObject> obj =
       i::Handle<i::JSObject>::cast(Utils::OpenHandle(this));
   i::Handle<i::WasmCompiledModule> compiled_part =
       i::handle(i::WasmCompiledModule::cast(obj->GetInternalField(0)));
-  i::Handle<i::String> wire_bytes = compiled_part->module_bytes();
+  i::Handle<i::String> wire_bytes(compiled_part->module_bytes());
   return Local<String>::Cast(Utils::ToLocal(wire_bytes));
 }
 
 WasmCompiledModule::SerializedModule WasmCompiledModule::Serialize() {
   i::Handle<i::JSObject> obj =
       i::Handle<i::JSObject>::cast(Utils::OpenHandle(this));
   i::Handle<i::WasmCompiledModule> compiled_part =
       i::handle(i::WasmCompiledModule::cast(obj->GetInternalField(0)));
 
   std::unique_ptr<i::ScriptData> script_data =
@@ skipping 41 matching lines @@
 
 MaybeLocal<WasmCompiledModule> WasmCompiledModule::Compile(Isolate* isolate,
                                                            const uint8_t* start,
                                                            size_t length) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
   i::wasm::ErrorThrower thrower(i_isolate, "WasmCompiledModule::Deserialize()");
   i::MaybeHandle<i::JSObject> maybe_compiled =
       i::wasm::CreateModuleObjectFromBytes(
           i_isolate, start, start + length, &thrower,
           i::wasm::ModuleOrigin::kWasmOrigin, i::Handle<i::Script>::null(),
-          nullptr, nullptr);
+          i::Vector<const uint8_t>::empty());
   if (maybe_compiled.is_null()) return MaybeLocal<WasmCompiledModule>();
   return Local<WasmCompiledModule>::Cast(
       Utils::ToLocal(maybe_compiled.ToHandleChecked()));
 }
 
 // static
 v8::ArrayBuffer::Allocator* v8::ArrayBuffer::Allocator::NewDefaultAllocator() {
   return new ArrayBufferAllocator();
 }
 
@@ skipping 2495 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8