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/* 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 "mozilla/Attributes.h"
#include "mozilla/UniquePtr.h"
class nsHtml5Speculation final : public nsAHtml5TreeOpSink {
public:
nsHtml5Speculation(nsHtml5OwningUTF16Buffer* aBuffer, int32_t aStart,
int32_t aStartLineNumber, int32_t aStartColumnNumber,
nsAHtml5TreeBuilderState* aSnapshot);
~nsHtml5Speculation();
nsHtml5OwningUTF16Buffer* GetBuffer() { return mBuffer; }
int32_t GetStart() { return mStart; }
int32_t GetStartLineNumber() { return mStartLineNumber; }
int32_t GetStartColumnNumber() { return mStartColumnNumber; }
nsAHtml5TreeBuilderState* GetSnapshot() { return mSnapshot.get(); }
/**
* Flush the operations from the tree operations from the argument
* queue unconditionally.
*/
[[nodiscard]] virtual bool MoveOpsFrom(
nsTArray<nsHtml5TreeOperation>& aOpQueue) override;
[[nodiscard]] bool 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;
/**
* The current line number at the start of the speculation.
*/
int32_t mStartColumnNumber;
mozilla::UniquePtr<nsAHtml5TreeBuilderState> mSnapshot;
nsTArray<nsHtml5TreeOperation> mOpQueue;
};
#endif // nsHtml5Speculation_h
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