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authorSimon Hausmann <simon.hausmann@digia.com>2014-02-28 13:13:16 +0100
committerSimon Hausmann <simon.hausmann@digia.com>2014-02-28 13:14:15 +0100
commit846cc4c75cc06def67e831c8cb3c9edaef24f8f0 (patch)
treecf8cd76a5a610a6264583148b2c0549f7514dde3 /src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitAST.h
parent9e4a215a2569a04010292c8718d0f0569bc06c12 (diff)
parent0d0fb04d505d105fb4b2fc71d68f729ce670b12e (diff)
Merge remote-tracking branch 'origin/stable' into dev
Conflicts: src/network/access/qhttpthreaddelegate.cpp Change-Id: Ia15372687c93cd585967b006c0baaac3a5f29e91
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitAST.h')
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diff --git a/src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitAST.h b/src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitAST.h
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+++ b/src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitAST.h
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+//
+// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// UnfoldShortCircuitAST is an AST traverser to replace short-circuiting
+// operations with ternary operations.
+//
+
+#ifndef COMPILER_UNFOLD_SHORT_CIRCUIT_AST_H_
+#define COMPILER_UNFOLD_SHORT_CIRCUIT_AST_H_
+
+#include "common/angleutils.h"
+#include "compiler/translator/intermediate.h"
+
+// This traverser identifies all the short circuit binary nodes that need to
+// be replaced, and creates the corresponding replacement nodes. However,
+// the actual replacements happen after the traverse through updateTree().
+
+class UnfoldShortCircuitAST : public TIntermTraverser
+{
+ public:
+ UnfoldShortCircuitAST() { }
+
+ virtual bool visitBinary(Visit visit, TIntermBinary *);
+
+ void updateTree();
+
+ private:
+ struct NodeUpdateEntry
+ {
+ NodeUpdateEntry(TIntermNode *_parent,
+ TIntermNode *_original,
+ TIntermNode *_replacement)
+ : parent(_parent),
+ original(_original),
+ replacement(_replacement) {}
+
+ TIntermNode *parent;
+ TIntermNode *original;
+ TIntermNode *replacement;
+ };
+
+ // During traversing, save all the replacements that need to happen;
+ // then replace them by calling updateNodes().
+ std::vector<NodeUpdateEntry> replacements;
+
+ DISALLOW_COPY_AND_ASSIGN(UnfoldShortCircuitAST);
+};
+
+#endif // COMPILER_UNFOLD_SHORT_CIRCUIT_AST_H_