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1 //
2 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
3 // Copyright (C) 2013 LunarG, Inc.
4 // Copyright (C) 2015-2018 Google, Inc.
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 Copyright (c) 2002, NVIDIA Corporation.
38 
39 NVIDIA Corporation("NVIDIA") supplies this software to you in
40 consideration of your agreement to the following terms, and your use,
41 installation, modification or redistribution of this NVIDIA software
42 constitutes acceptance of these terms.  If you do not agree with these
43 terms, please do not use, install, modify or redistribute this NVIDIA
44 software.
45 
46 In consideration of your agreement to abide by the following terms, and
47 subject to these terms, NVIDIA grants you a personal, non-exclusive
48 license, under NVIDIA's copyrights in this original NVIDIA software (the
49 "NVIDIA Software"), to use, reproduce, modify and redistribute the
50 NVIDIA Software, with or without modifications, in source and/or binary
51 forms; provided that if you redistribute the NVIDIA Software, you must
52 retain the copyright notice of NVIDIA, this notice and the following
53 text and disclaimers in all such redistributions of the NVIDIA Software.
54 Neither the name, trademarks, service marks nor logos of NVIDIA
55 Corporation may be used to endorse or promote products derived from the
56 NVIDIA Software without specific prior written permission from NVIDIA.
57 Except as expressly stated in this notice, no other rights or licenses
58 express or implied, are granted by NVIDIA herein, including but not
59 limited to any patent rights that may be infringed by your derivative
60 works or by other works in which the NVIDIA Software may be
61 incorporated. No hardware is licensed hereunder.
62 
63 THE NVIDIA SOFTWARE IS BEING PROVIDED ON AN "AS IS" BASIS, WITHOUT
64 WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED,
65 INCLUDING WITHOUT LIMITATION, WARRANTIES OR CONDITIONS OF TITLE,
66 NON-INFRINGEMENT, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
67 ITS USE AND OPERATION EITHER ALONE OR IN COMBINATION WITH OTHER
68 PRODUCTS.
69 
70 IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT,
71 INCIDENTAL, EXEMPLARY, CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
72 TO, LOST PROFITS; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
73 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) OR ARISING IN ANY WAY
74 OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE
75 NVIDIA SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT,
76 TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
77 NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
78 \****************************************************************************/
79 
80 #include <cstdlib>
81 #include <locale>
82 
83 #include "PpContext.h"
84 
85 namespace glslang {
86 
TPpContext(TParseContextBase & pc,const std::string & rootFileName,TShader::Includer & inclr)87 TPpContext::TPpContext(TParseContextBase& pc, const std::string& rootFileName, TShader::Includer& inclr) :
88     preamble(0), strings(0), previous_token('\n'), parseContext(pc), includer(inclr), inComment(false),
89     rootFileName(rootFileName),
90     currentSourceFile(rootFileName),
91     disableEscapeSequences(false)
92 {
93     ifdepth = 0;
94     for (elsetracker = 0; elsetracker < maxIfNesting; elsetracker++)
95         elseSeen[elsetracker] = false;
96     elsetracker = 0;
97 
98     strtodStream.imbue(std::locale::classic());
99 }
100 
~TPpContext()101 TPpContext::~TPpContext()
102 {
103     delete [] preamble;
104 
105     // free up the inputStack
106     while (! inputStack.empty())
107         popInput();
108 }
109 
setInput(TInputScanner & input,bool versionWillBeError)110 void TPpContext::setInput(TInputScanner& input, bool versionWillBeError)
111 {
112     assert(inputStack.size() == 0);
113 
114     pushInput(new tStringInput(this, input));
115 
116     errorOnVersion = versionWillBeError;
117     versionSeen = false;
118 }
119 
120 } // end namespace glslang
121