1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
4 
5 Copyright (c) 2006-2008, assimp team
6 All rights reserved.
7 
8 Redistribution and use of this software in source and binary forms,
9 with or without modification, are permitted provided that the
10 following conditions are met:
11 
12 * Redistributions of source code must retain the above
13   copyright notice, this list of conditions and the
14   following disclaimer.
15 
16 * Redistributions in binary form must reproduce the above
17   copyright notice, this list of conditions and the
18   following disclaimer in the documentation and/or other
19   materials provided with the distribution.
20 
21 * Neither the name of the assimp team, nor the names of its
22   contributors may be used to endorse or promote products
23   derived from this software without specific prior
24   written permission of the assimp team.
25 
26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 
38 ----------------------------------------------------------------------
39 */
40 
41 #ifndef INCLUDED_EXCEPTIONAL_H
42 #define INCLUDED_EXCEPTIONAL_H
43 
44 #include <stdexcept>
45 #include <assimp/DefaultIOStream.h>
46 using std::runtime_error;
47 
48 #ifdef _MSC_VER
49 #   pragma warning(disable : 4275)
50 #endif
51 
52 // ---------------------------------------------------------------------------
53 /** FOR IMPORTER PLUGINS ONLY: Simple exception class to be thrown if an
54  *  unrecoverable error occurs while importing. Loading APIs return
55  *  NULL instead of a valid aiScene then.  */
56 class DeadlyImportError
57     : public runtime_error
58 {
59 public:
60     /** Constructor with arguments */
DeadlyImportError(const std::string & errorText)61     explicit DeadlyImportError( const std::string& errorText)
62         : runtime_error(errorText)
63     {
64     }
65 
66 private:
67 };
68 
69 typedef DeadlyImportError DeadlyExportError;
70 
71 #ifdef _MSC_VER
72 #   pragma warning(default : 4275)
73 #endif
74 
75 // ---------------------------------------------------------------------------
76 template <typename T>
77 struct ExceptionSwallower   {
operatorExceptionSwallower78     T operator ()() const {
79         return T();
80     }
81 };
82 
83 // ---------------------------------------------------------------------------
84 template <typename T>
85 struct ExceptionSwallower<T*>   {
86     T* operator ()() const {
87         return NULL;
88     }
89 };
90 
91 // ---------------------------------------------------------------------------
92 template <>
93 struct ExceptionSwallower<aiReturn> {
94     aiReturn operator ()() const {
95         try {
96             throw;
97         }
98         catch (std::bad_alloc&) {
99             return aiReturn_OUTOFMEMORY;
100         }
101         catch (...) {
102             return aiReturn_FAILURE;
103         }
104     }
105 };
106 
107 // ---------------------------------------------------------------------------
108 template <>
109 struct ExceptionSwallower<void> {
110     void operator ()() const {
111         return;
112     }
113 };
114 
115 #define ASSIMP_BEGIN_EXCEPTION_REGION()\
116 {\
117     try {
118 
119 #define ASSIMP_END_EXCEPTION_REGION(type)\
120     } catch(...) {\
121         return ExceptionSwallower<type>()();\
122     }\
123 }
124 
125 #endif // INCLUDED_EXCEPTIONAL_H
126