1 files changed, 62 insertions, 0 deletions
diff --git a/js/src/debugger/Script-inl.h b/js/src/debugger/Script-inl.h
new file mode 100644
index 0000000000..909c714739
--- /dev/null
+++ b/js/src/debugger/Script-inl.h
@@ -0,0 +1,62 @@
+/* -*- 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 debugger_Script_inl_h
+#define debugger_Script_inl_h
+
+#include "debugger/Script.h"  // for DebuggerScript
+
+#include "mozilla/Assertions.h"  // for AssertionConditionType, MOZ_ASSERT
+#include "mozilla/Variant.h"     // for AsVariant
+
+#include <utility>  // for move
+
+#include "jstypes.h"            // for JS_PUBLIC_API
+#include "debugger/Debugger.h"  // for DebuggerScriptReferent
+#include "gc/Cell.h"            // for Cell
+#include "vm/JSScript.h"        // for BaseScript, JSScript
+#include "vm/NativeObject.h"    // for NativeObject
+#include "wasm/WasmJS.h"        // for WasmInstanceObject
+
+#include "debugger/Debugger-inl.h"  // for Debugger::fromJSObject
+
+class JS_PUBLIC_API JSObject;
+
+// The Debugger.Script.prototype object also has a class of
+// DebuggerScript::class_ so we differentiate instances from the prototype
+// based on the presence of an owner debugger.
+inline bool js::DebuggerScript::isInstance() const {
+  return !getReservedSlot(OWNER_SLOT).isUndefined();
+}
+
+inline js::Debugger* js::DebuggerScript::owner() const {
+  MOZ_ASSERT(isInstance());
+  JSObject* dbgobj = &getReservedSlot(OWNER_SLOT).toObject();
+  return Debugger::fromJSObject(dbgobj);
+}
+
+js::gc::Cell* js::DebuggerScript::getReferentCell() const {
+  return static_cast<gc::Cell*>(getPrivate());
+}
+
+js::DebuggerScriptReferent js::DebuggerScript::getReferent() const {
+  if (gc::Cell* cell = getReferentCell()) {
+    if (cell->is<BaseScript>()) {
+      return mozilla::AsVariant(cell->as<BaseScript>());
+    }
+    MOZ_ASSERT(cell->is<JSObject>());
+    return mozilla::AsVariant(
+        &static_cast<NativeObject*>(cell)->as<WasmInstanceObject>());
+  }
+  return mozilla::AsVariant(static_cast<BaseScript*>(nullptr));
+}
+
+js::BaseScript* js::DebuggerScript::getReferentScript() const {
+  gc::Cell* cell = getReferentCell();
+  return cell->as<BaseScript>();
+}
+
+#endif /* debugger_Script_inl_h */