gecko-dev/dom/script/ModuleLoadRequest.cpp

104 строки
2.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ModuleLoadRequest.h"
#include "ModuleScript.h"
#include "ScriptLoader.h"
namespace mozilla {
namespace dom {
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ModuleLoadRequest)
NS_INTERFACE_MAP_END_INHERITING(ScriptLoadRequest)
NS_IMPL_CYCLE_COLLECTION_INHERITED(ModuleLoadRequest, ScriptLoadRequest,
mBaseURL,
mLoader,
mParent,
mModuleScript,
mImports)
NS_IMPL_ADDREF_INHERITED(ModuleLoadRequest, ScriptLoadRequest)
NS_IMPL_RELEASE_INHERITED(ModuleLoadRequest, ScriptLoadRequest)
ModuleLoadRequest::ModuleLoadRequest(nsIScriptElement* aElement,
uint32_t aVersion,
CORSMode aCORSMode,
const SRIMetadata& aIntegrity,
ScriptLoader* aLoader)
: ScriptLoadRequest(ScriptKind::Module,
aElement,
aVersion,
aCORSMode,
aIntegrity),
mIsTopLevel(true),
mLoader(aLoader)
{}
void
ModuleLoadRequest::Cancel()
{
ScriptLoadRequest::Cancel();
mModuleScript = nullptr;
mProgress = ScriptLoadRequest::Progress::Ready;
for (size_t i = 0; i < mImports.Length(); i++) {
mImports[i]->Cancel();
}
mReady.RejectIfExists(NS_ERROR_FAILURE, __func__);
}
void
ModuleLoadRequest::SetReady()
{
#ifdef DEBUG
for (size_t i = 0; i < mImports.Length(); i++) {
MOZ_ASSERT(mImports[i]->IsReadyToRun());
}
#endif
ScriptLoadRequest::SetReady();
mReady.ResolveIfExists(true, __func__);
}
void
ModuleLoadRequest::ModuleLoaded()
{
// A module that was found to be marked as fetching in the module map has now
// been loaded.
mModuleScript = mLoader->GetFetchedModule(mURI);
mLoader->StartFetchingModuleDependencies(this);
}
void
ModuleLoadRequest::DependenciesLoaded()
{
// The module and all of its dependencies have been successfully fetched and
// compiled.
if (!mLoader->InstantiateModuleTree(this)) {
LoadFailed();
return;
}
SetReady();
mLoader->ProcessLoadedModuleTree(this);
mLoader = nullptr;
mParent = nullptr;
}
void
ModuleLoadRequest::LoadFailed()
{
Cancel();
mLoader->ProcessLoadedModuleTree(this);
mLoader = nullptr;
mParent = nullptr;
}
} // dom namespace
} // mozilla namespace