1 files changed, 75 insertions, 0 deletions
diff --git a/parser/html/nsHtml5Speculation.h b/parser/html/nsHtml5Speculation.h
new file mode 100644
index 000000000..3104bd7f4
--- /dev/null
+++ b/parser/html/nsHtml5Speculation.h
@@ -0,0 +1,75 @@
+/* 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 nsHtml5Speculation_h
+#define nsHtml5Speculation_h
+
+#include "nsHtml5OwningUTF16Buffer.h"
+#include "nsAHtml5TreeBuilderState.h"
+#include "nsHtml5TreeOperation.h"
+#include "nsAHtml5TreeOpSink.h"
+#include "nsTArray.h"
+#include "nsAutoPtr.h"
+#include "mozilla/Attributes.h"
+
+class nsHtml5Speculation final : public nsAHtml5TreeOpSink
+{
+  public:
+    nsHtml5Speculation(nsHtml5OwningUTF16Buffer* aBuffer,
+                       int32_t aStart, 
+                       int32_t aStartLineNumber, 
+                       nsAHtml5TreeBuilderState* aSnapshot);
+    
+    ~nsHtml5Speculation();
+
+    nsHtml5OwningUTF16Buffer* GetBuffer()
+    {
+      return mBuffer;
+    }
+    
+    int32_t GetStart()
+    {
+      return mStart;
+    }
+
+    int32_t GetStartLineNumber()
+    {
+      return mStartLineNumber;
+    }
+    
+    nsAHtml5TreeBuilderState* GetSnapshot()
+    {
+      return mSnapshot;
+    }
+
+    /**
+     * Flush the operations from the tree operations from the argument
+     * queue unconditionally.
+     */
+    virtual void MoveOpsFrom(nsTArray<nsHtml5TreeOperation>& aOpQueue);
+    
+    void FlushToSink(nsAHtml5TreeOpSink* aSink);
+
+  private:
+    /**
+     * The first buffer in the pending UTF-16 buffer queue
+     */
+    RefPtr<nsHtml5OwningUTF16Buffer>  mBuffer;
+    
+    /**
+     * The start index of this speculation in the first buffer
+     */
+    int32_t                             mStart;
+
+    /**
+     * The current line number at the start of the speculation
+     */
+    int32_t                             mStartLineNumber;
+    
+    nsAutoPtr<nsAHtml5TreeBuilderState> mSnapshot;
+
+    nsTArray<nsHtml5TreeOperation>      mOpQueue;
+};
+
+#endif // nsHtml5Speculation_h