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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef V8BindingMacros_h
     32 #define V8BindingMacros_h
     33 
     34 namespace WebCore {
     35 
     36 #define V8TRYCATCH(type, var, value) \
     37     type var;                             \
     38     {                                     \
     39         v8::TryCatch block;               \
     40         var = (value);                    \
     41         if (block.HasCaught())            \
     42             return block.ReThrow();       \
     43     }
     44 
     45 #define V8TRYCATCH_RETURN(type, var, value, retVal) \
     46     type var;                                       \
     47     {                                               \
     48         v8::TryCatch block;                         \
     49         var = (value);                              \
     50         if (block.HasCaught()) {                    \
     51             block.ReThrow();                        \
     52             return retVal;                          \
     53         }                                           \
     54     }
     55 
     56 #define V8TRYCATCH_VOID(type, var, value) \
     57     type var;                             \
     58     {                                     \
     59         v8::TryCatch block;               \
     60         var = (value);                    \
     61         if (block.HasCaught()) {          \
     62             block.ReThrow();              \
     63             return;                       \
     64         }                                 \
     65     }
     66 
     67 #define V8TRYCATCH_WITH_TYPECHECK_VOID(type, var, value, isolate) \
     68     type var;                                                     \
     69     {                                                             \
     70         bool ok = true;                                           \
     71         {                                                         \
     72             v8::TryCatch block;                                   \
     73             var = (value);                                        \
     74             if (block.HasCaught()) {                              \
     75                 block.ReThrow();                                  \
     76                 return;                                           \
     77             }                                                     \
     78         }                                                         \
     79         if (UNLIKELY(!ok)) {                                      \
     80             throwUninformativeAndGenericTypeError(isolate);       \
     81             return;                                               \
     82         }                                                         \
     83     }
     84 
     85 #define V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(type, var, value, retVal) \
     86     type var(value);                                                     \
     87     if (!var.prepare())                                                  \
     88         return retVal;
     89 
     90 #define V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(type, var, value) \
     91     type var(value);                                                 \
     92     if (!var.prepare())                                              \
     93         return;
     94 
     95 } // namespace WebCore
     96 
     97 #endif // V8BindingMacros_h
     98