parser/html/nsHtml5TreeOpStage.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef nsHtml5TreeOpStage_h
   6 #define nsHtml5TreeOpStage_h
   7
   8 #include "mozilla/Mutex.h"
   9 #include "nsHtml5TreeOperation.h"
  10 #include "nsTArray.h"
  11 #include "nsAHtml5TreeOpSink.h"
  12 #include "nsHtml5SpeculativeLoad.h"
  13
  14 class nsHtml5TreeOpStage : public nsAHtml5TreeOpSink {
  15  public:
  16   nsHtml5TreeOpStage();
  17
  18   virtual ~nsHtml5TreeOpStage();
  19
  20   /**
  21    * Flush the operations from the tree operations from the argument
  22    * queue unconditionally.
  23    */
  24   [[nodiscard]] virtual bool MoveOpsFrom(
  25       nsTArray<nsHtml5TreeOperation>& aOpQueue) override;
  26
  27   /**
  28    * Retrieve the staged operations into the argument.
  29    */
  30   [[nodiscard]] bool MoveOpsTo(nsTArray<nsHtml5TreeOperation>& aOpQueue);
  31
  32   /**
  33    * Retrieve the staged operations and speculative loads into the arguments.
  34    */
  35   [[nodiscard]] bool MoveOpsAndSpeculativeLoadsTo(
  36       nsTArray<nsHtml5TreeOperation>& aOpQueue,
  37       nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue);
  38
  39   /**
  40    * Move the speculative loads from the argument into the staging queue.
  41    */
  42   void MoveSpeculativeLoadsFrom(
  43       nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue);
  44
  45   /**
  46    * Retrieve the staged speculative loads into the argument.
  47    */
  48   void MoveSpeculativeLoadsTo(
  49       nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue);
  50
  51 #ifdef DEBUG
  52   void AssertEmpty();
  53 #endif
  54
  55  private:
  56   nsTArray<nsHtml5TreeOperation> mOpQueue;
  57   nsTArray<nsHtml5SpeculativeLoad> mSpeculativeLoadQueue;
  58   mozilla::Mutex mMutex MOZ_UNANNOTATED;
  59 };
  60
  61 #endif /* nsHtml5TreeOpStage_h */