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	This allows nsLayoutPhase to be fwd declared. Differential Revision: https://phabricator.services.mozilla.com/D38840 --HG-- extra : moz-landing-system : lando
		
			
				
	
	
		
			49 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			49 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
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 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsAutoLayoutPhase_h
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#define nsAutoLayoutPhase_h
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#ifdef DEBUG
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#  include <stdint.h>
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enum class nsLayoutPhase : uint8_t;
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class nsPresContext;
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struct nsAutoLayoutPhase {
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  nsAutoLayoutPhase(nsPresContext* aPresContext, nsLayoutPhase aPhase);
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  ~nsAutoLayoutPhase();
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  void Enter();
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  void Exit();
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 private:
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  nsPresContext* mPresContext;
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  nsLayoutPhase mPhase;
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  uint32_t mCount;
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};
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#  define AUTO_LAYOUT_PHASE_ENTRY_POINT(pc_, phase_) \
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    nsAutoLayoutPhase autoLayoutPhase((pc_), (nsLayoutPhase::phase_))
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#  define LAYOUT_PHASE_TEMP_EXIT() \
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    PR_BEGIN_MACRO                 \
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    autoLayoutPhase.Exit();        \
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    PR_END_MACRO
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#  define LAYOUT_PHASE_TEMP_REENTER() \
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    PR_BEGIN_MACRO                    \
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    autoLayoutPhase.Enter();          \
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    PR_END_MACRO
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#else  // DEBUG
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#  define AUTO_LAYOUT_PHASE_ENTRY_POINT(pc_, phase_) PR_BEGIN_MACRO PR_END_MACRO
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#  define LAYOUT_PHASE_TEMP_EXIT() PR_BEGIN_MACRO PR_END_MACRO
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#  define LAYOUT_PHASE_TEMP_REENTER() PR_BEGIN_MACRO PR_END_MACRO
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#endif  // DEBUG
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#endif  // nsAutoLayoutPhase_h
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