1 files changed, 70 insertions, 0 deletions
diff --git a/dom/xslt/xpath/XPathExpression.h b/dom/xslt/xpath/XPathExpression.h
new file mode 100644
index 0000000000..bebd300a30
--- /dev/null
+++ b/dom/xslt/xpath/XPathExpression.h
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 mozilla_dom_XPathExpression_h
+#define mozilla_dom_XPathExpression_h
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsIWeakReferenceUtils.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/NonRefcountedDOMObject.h"
+#include "mozilla/dom/XPathExpressionBinding.h"
+#include "mozilla/UniquePtr.h"
+
+class Expr;
+
+class nsINode;
+class txResultRecycler;
+
+namespace mozilla {
+namespace dom {
+
+class Document;
+class XPathResult;
+
+/**
+ * A class for evaluating an XPath expression string
+ */
+class XPathExpression final : public NonRefcountedDOMObject {
+ public:
+  XPathExpression(mozilla::UniquePtr<Expr>&& aExpression,
+                  txResultRecycler* aRecycler, Document* aDocument);
+  ~XPathExpression();
+
+  bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
+                  JS::MutableHandle<JSObject*> aReflector) {
+    return XPathExpression_Binding::Wrap(aCx, this, aGivenProto, aReflector);
+  }
+
+  already_AddRefed<XPathResult> Evaluate(JSContext* aCx, nsINode& aContextNode,
+                                         uint16_t aType,
+                                         JS::Handle<JSObject*> aInResult,
+                                         ErrorResult& aRv) {
+    return EvaluateWithContext(aCx, aContextNode, 1, 1, aType, aInResult, aRv);
+  }
+  already_AddRefed<XPathResult> EvaluateWithContext(
+      JSContext* aCx, nsINode& aContextNode, uint32_t aContextPosition,
+      uint32_t aContextSize, uint16_t aType, JS::Handle<JSObject*> aInResult,
+      ErrorResult& aRv);
+  already_AddRefed<XPathResult> Evaluate(nsINode& aContextNode, uint16_t aType,
+                                         XPathResult* aInResult,
+                                         ErrorResult& aRv) {
+    return EvaluateWithContext(aContextNode, 1, 1, aType, aInResult, aRv);
+  }
+  already_AddRefed<XPathResult> EvaluateWithContext(
+      nsINode& aContextNode, uint32_t aContextPosition, uint32_t aContextSize,
+      uint16_t aType, XPathResult* aInResult, ErrorResult& aRv);
+
+ private:
+  mozilla::UniquePtr<Expr> mExpression;
+  RefPtr<txResultRecycler> mRecycler;
+  nsWeakPtr mDocument;
+  bool mCheckDocument;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif /* mozilla_dom_XPathExpression_h */