1 //
2 // Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
3 // Copyright (C) 2013 LunarG, Inc.
4 //
5 // All rights reserved.
6 //
7 // Redistribution and use in source and binary forms, with or without
8 // modification, are permitted provided that the following conditions
9 // are met:
10 //
11 // Redistributions of source code must retain the above copyright
12 // notice, this list of conditions and the following disclaimer.
13 //
14 // Redistributions in binary form must reproduce the above
15 // copyright notice, this list of conditions and the following
16 // disclaimer in the documentation and/or other materials provided
17 // with the distribution.
18 //
19 // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
20 // contributors may be used to endorse or promote products derived
21 // from this software without specific prior written permission.
22 //
23 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 // POSSIBILITY OF SUCH DAMAGE.
35 //
36
37 #include "../Include/intermediate.h"
38 #include "RemoveTree.h"
39
40 namespace glslang {
41
42 //
43 // Code to recursively delete the intermediate tree.
44 //
45 struct TRemoveTraverser : TIntermTraverser {
TRemoveTraverserglslang::TRemoveTraverser46 TRemoveTraverser() : TIntermTraverser(false, false, true, false) {}
47
visitSymbolglslang::TRemoveTraverser48 virtual void visitSymbol(TIntermSymbol* node)
49 {
50 delete node;
51 }
52
visitBinaryglslang::TRemoveTraverser53 virtual bool visitBinary(TVisit /* visit*/ , TIntermBinary* node)
54 {
55 delete node;
56
57 return true;
58 }
59
visitUnaryglslang::TRemoveTraverser60 virtual bool visitUnary(TVisit /* visit */, TIntermUnary* node)
61 {
62 delete node;
63
64 return true;
65 }
66
visitAggregateglslang::TRemoveTraverser67 virtual bool visitAggregate(TVisit /* visit*/ , TIntermAggregate* node)
68 {
69 delete node;
70
71 return true;
72 }
73
visitSelectionglslang::TRemoveTraverser74 virtual bool visitSelection(TVisit /* visit*/ , TIntermSelection* node)
75 {
76 delete node;
77
78 return true;
79 }
80
visitSwitchglslang::TRemoveTraverser81 virtual bool visitSwitch(TVisit /* visit*/ , TIntermSwitch* node)
82 {
83 delete node;
84
85 return true;
86 }
87
visitConstantUnionglslang::TRemoveTraverser88 virtual void visitConstantUnion(TIntermConstantUnion* node)
89 {
90 delete node;
91 }
92
visitLoopglslang::TRemoveTraverser93 virtual bool visitLoop(TVisit /* visit*/ , TIntermLoop* node)
94 {
95 delete node;
96
97 return true;
98 }
99
visitBranchglslang::TRemoveTraverser100 virtual bool visitBranch(TVisit /* visit*/ , TIntermBranch* node)
101 {
102 delete node;
103
104 return true;
105 }
106 };
107
108 //
109 // Entry point.
110 //
RemoveAllTreeNodes(TIntermNode * root)111 void RemoveAllTreeNodes(TIntermNode* root)
112 {
113 TRemoveTraverser it;
114
115 root->traverse(&it);
116 }
117
118 } // end namespace glslang
119