1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/vm/ErrorObject-inl.h b/js/src/vm/ErrorObject-inl.h
new file mode 100644
index 0000000000..09175c6ba8
--- /dev/null
+++ b/js/src/vm/ErrorObject-inl.h
@@ -0,0 +1,51 @@
+/* -*- 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 vm_ErrorObject_inl_h
+#define vm_ErrorObject_inl_h
+
+#include "vm/ErrorObject.h"
+
+#include "js/ColumnNumber.h"  // JS::ColumnNumberOneOrigin
+
+#include "vm/JSAtomState.h"
+#include "vm/JSContext.h"
+
+inline JSString* js::ErrorObject::fileName(JSContext* cx) const {
+  Value val = getReservedSlot(FILENAME_SLOT);
+  return val.isString() ? val.toString() : cx->names().empty_;
+}
+
+inline uint32_t js::ErrorObject::sourceId() const {
+  Value val = getReservedSlot(SOURCEID_SLOT);
+  return val.isInt32() ? val.toInt32() : 0;
+}
+
+inline uint32_t js::ErrorObject::lineNumber() const {
+  Value val = getReservedSlot(LINENUMBER_SLOT);
+  return val.isInt32() ? val.toInt32() : 0;
+}
+
+inline JS::ColumnNumberOneOrigin js::ErrorObject::columnNumber() const {
+  Value val = getReservedSlot(COLUMNNUMBER_SLOT);
+  // If Error object's `columnNumber` property is modified from JS code,
+  // COLUMNNUMBER_SLOT slot can contain non-int32 value.
+  // Use column number 1 as fallback value for such case.
+  return val.isInt32() ? JS::ColumnNumberOneOrigin(val.toInt32())
+                       : JS::ColumnNumberOneOrigin();
+}
+
+inline JSObject* js::ErrorObject::stack() const {
+  // If the stack was a CCW, it might have been turned into a dead object proxy
+  // by NukeCrossCompartmentWrapper. Return nullptr in this case.
+  JSObject* obj = getReservedSlot(STACK_SLOT).toObjectOrNull();
+  if (obj && obj->canUnwrapAs<SavedFrame>()) {
+    return obj;
+  }
+  return nullptr;
+}
+
+#endif /* vm_ErrorObject_inl_h */