1 files changed, 119 insertions, 0 deletions
diff --git a/js/loader/LoadedScript.h b/js/loader/LoadedScript.h
new file mode 100644
index 0000000000..a61884f4a2
--- /dev/null
+++ b/js/loader/LoadedScript.h
@@ -0,0 +1,119 @@
+/* -*- 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/. */
+
+#ifndef js_loader_LoadedScript_h
+#define js_loader_LoadedScript_h
+
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "jsapi.h"
+#include "ScriptLoadRequest.h"
+
+class nsIURI;
+
+namespace JS::loader {
+
+void HostAddRefTopLevelScript(const JS::Value& aPrivate);
+void HostReleaseTopLevelScript(const JS::Value& aPrivate);
+
+class ClassicScript;
+class ModuleScript;
+class EventScript;
+
+class LoadedScript : public nsISupports {
+  ScriptKind mKind;
+  RefPtr<ScriptFetchOptions> mFetchOptions;
+  nsCOMPtr<nsIURI> mBaseURL;
+
+ protected:
+  LoadedScript(ScriptKind aKind, ScriptFetchOptions* aFetchOptions,
+               nsIURI* aBaseURL);
+
+  virtual ~LoadedScript();
+
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(LoadedScript)
+
+  bool IsModuleScript() const { return mKind == ScriptKind::eModule; }
+  bool IsEventScript() const { return mKind == ScriptKind::eEvent; }
+
+  inline ClassicScript* AsClassicScript();
+  inline ModuleScript* AsModuleScript();
+  inline EventScript* AsEventScript();
+
+  // Used to propagate Fetch Options to child modules
+  ScriptFetchOptions* GetFetchOptions() const { return mFetchOptions; }
+
+  nsIURI* BaseURL() const { return mBaseURL; }
+
+  void AssociateWithScript(JSScript* aScript);
+};
+
+class ClassicScript final : public LoadedScript {
+  ~ClassicScript() = default;
+
+ public:
+  ClassicScript(ScriptFetchOptions* aFetchOptions, nsIURI* aBaseURL);
+};
+
+class EventScript final : public LoadedScript {
+  ~EventScript() = default;
+
+ public:
+  EventScript(ScriptFetchOptions* aFetchOptions, nsIURI* aBaseURL);
+};
+
+// A single module script. May be used to satisfy multiple load requests.
+
+class ModuleScript final : public LoadedScript {
+  JS::Heap<JSObject*> mModuleRecord;
+  JS::Heap<JS::Value> mParseError;
+  JS::Heap<JS::Value> mErrorToRethrow;
+  bool mDebuggerDataInitialized;
+
+  ~ModuleScript();
+
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(ModuleScript,
+                                                         LoadedScript)
+
+  ModuleScript(ScriptFetchOptions* aFetchOptions, nsIURI* aBaseURL);
+
+  void SetModuleRecord(JS::Handle<JSObject*> aModuleRecord);
+  void SetParseError(const JS::Value& aError);
+  void SetErrorToRethrow(const JS::Value& aError);
+  void SetDebuggerDataInitialized();
+
+  JSObject* ModuleRecord() const { return mModuleRecord; }
+
+  JS::Value ParseError() const { return mParseError; }
+  JS::Value ErrorToRethrow() const { return mErrorToRethrow; }
+  bool HasParseError() const { return !mParseError.isUndefined(); }
+  bool HasErrorToRethrow() const { return !mErrorToRethrow.isUndefined(); }
+  bool DebuggerDataInitialized() const { return mDebuggerDataInitialized; }
+
+  void Shutdown();
+
+  void UnlinkModuleRecord();
+
+  friend void CheckModuleScriptPrivate(LoadedScript*, const JS::Value&);
+};
+
+ClassicScript* LoadedScript::AsClassicScript() {
+  MOZ_ASSERT(!IsModuleScript());
+  return static_cast<ClassicScript*>(this);
+}
+
+ModuleScript* LoadedScript::AsModuleScript() {
+  MOZ_ASSERT(IsModuleScript());
+  return static_cast<ModuleScript*>(this);
+}
+
+}  // namespace JS::loader
+
+#endif  // js_loader_LoadedScript_h