1 files changed, 94 insertions, 0 deletions
diff --git a/js/src/shell/ModuleLoader.h b/js/src/shell/ModuleLoader.h
new file mode 100644
index 0000000000..c8f0147356
--- /dev/null
+++ b/js/src/shell/ModuleLoader.h
@@ -0,0 +1,94 @@
+/* -*- 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 shell_ModuleLoader_h
+#define shell_ModuleLoader_h
+
+#include "builtin/ModuleObject.h"
+#include "js/RootingAPI.h"
+
+namespace js {
+namespace shell {
+
+class ModuleLoader {
+ public:
+  bool init(JSContext* cx, HandleString loadPath);
+  bool loadRootModule(JSContext* cx, HandleString path);
+
+  // Testing hook to register a module that wasn't loaded by the module loader.
+  bool registerTestModule(JSContext* cx, HandleObject moduleRequest,
+                          Handle<ModuleObject*> module);
+
+  // Testing hook to clear all loaded modules.
+  void clearModules(JSContext* cx);
+
+ private:
+  static JSObject* ResolveImportedModule(JSContext* cx,
+                                         HandleValue referencingPrivate,
+                                         HandleObject moduleRequest);
+  static bool GetImportMetaProperties(JSContext* cx, HandleValue privateValue,
+                                      HandleObject metaObject);
+  static bool ImportMetaResolve(JSContext* cx, unsigned argc, Value* vp);
+  static bool ImportModuleDynamically(JSContext* cx,
+                                      HandleValue referencingPrivate,
+                                      HandleObject moduleRequest,
+                                      HandleObject promise);
+  static bool GetSupportedImportAssertions(JSContext* cx,
+                                           JS::ImportAssertionVector& values);
+
+  static bool DynamicImportDelayFulfilled(JSContext* cx, unsigned argc,
+                                          Value* vp);
+  static bool DynamicImportDelayRejected(JSContext* cx, unsigned argc,
+                                         Value* vp);
+
+  bool loadAndExecute(JSContext* cx, HandleString path, MutableHandleValue);
+  JSObject* resolveImportedModule(JSContext* cx, HandleValue referencingPrivate,
+                                  HandleObject moduleRequest);
+  bool populateImportMeta(JSContext* cx, HandleValue privateValue,
+                          HandleObject metaObject);
+  bool importMetaResolve(JSContext* cx,
+                         JS::Handle<JS::Value> referencingPrivate,
+                         JS::Handle<JSString*> specifier,
+                         JS::MutableHandle<JSString*> urlOut);
+  bool dynamicImport(JSContext* cx, HandleValue referencingPrivate,
+                     HandleObject moduleRequest, HandleObject promise);
+  bool doDynamicImport(JSContext* cx, HandleValue referencingPrivate,
+                       HandleObject moduleRequest, HandleObject promise);
+  bool tryDynamicImport(JSContext* cx, HandleValue referencingPrivate,
+                        HandleObject moduleRequest, HandleObject promise,
+                        MutableHandleValue rval);
+  JSObject* loadAndParse(JSContext* cx, HandleString path);
+  bool lookupModuleInRegistry(JSContext* cx, HandleString path,
+                              MutableHandleObject moduleOut);
+  bool addModuleToRegistry(JSContext* cx, HandleString path,
+                           HandleObject module);
+  JSLinearString* resolve(JSContext* cx, HandleObject moduleRequestArg,
+                          HandleValue referencingInfo);
+  JSLinearString* resolve(JSContext* cx, HandleString specifier,
+                          HandleValue referencingInfo);
+  bool getScriptPath(JSContext* cx, HandleValue privateValue,
+                     MutableHandle<JSLinearString*> pathOut);
+  JSLinearString* normalizePath(JSContext* cx, Handle<JSLinearString*> path);
+  JSObject* getOrCreateModuleRegistry(JSContext* cx);
+  JSString* fetchSource(JSContext* cx, Handle<JSLinearString*> path);
+
+  // The following are used for pinned atoms which do not need rooting.
+  JSAtom* loadPathStr = nullptr;
+  JSAtom* pathSeparatorStr = nullptr;
+
+  // The slot stored in ImportMetaResolve function.
+  enum { ModulePrivateSlot = 0, SlotCount };
+
+  // The number of args in ImportMetaResolve.
+  static const uint32_t ImportMetaResolveNumArgs = 1;
+  // The index of the 'specifier' argument in ImportMetaResolve.
+  static const uint32_t ImportMetaResolveSpecifierArg = 0;
+} JS_HAZ_NON_GC_POINTER;
+
+}  // namespace shell
+}  // namespace js
+
+#endif  // shell_ModuleLoader_h