Adding our custom X_ASSERT macro

cpp/ycm/CustomAssert.cpp

@@ -0,0 +1,102 @@
+/*
+* Copyright (c) 2008, Power of Two Games LLC
+*               2010, Strahinja Markovic
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of Power of Two Games LLC nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY POWER OF TWO GAMES LLC ``AS IS'' AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL POWER OF TWO GAMES LLC BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "CustomAssert.h"
+#include <cstdio>
+#include <cstdarg>
+
+namespace assert_ns
+{
+
+namespace
+{
+
+Assert::FailBehavior DefaultHandler(const char* condition,
+                                    const char* msg,
+                                    const char* file,
+                                    const int line)
+{
+  std::printf("%s(%d): Assert Failure: ", file, line);
+
+  if (condition != NULL)
+    std::printf("'%s' ", condition);
+
+  if (msg != NULL)
+    std::printf("%s", msg);
+
+  std::printf("\n");
+
+  return Assert::Halt;
+}
+
+Assert::Handler& GetAssertHandlerInstance()
+{
+  static Assert::Handler s_handler = &DefaultHandler;
+  return s_handler;
+}
+
+}
+
+Assert::Handler Assert::GetHandler()
+{
+  return GetAssertHandlerInstance();
+}
+
+void Assert::SetHandler(Assert::Handler newHandler)
+{
+  GetAssertHandlerInstance() = newHandler;
+}
+
+Assert::FailBehavior Assert::ReportFailure(const char* condition,
+                                           const char* file,
+                                           const int line,
+                                           const char* msg, ...)
+{
+  const char* message = NULL;
+  if (msg != NULL)
+  {
+    char messageBuffer[1024];
+    {
+      va_list args;
+      va_start(args, msg);
+
+#if defined(_MSC_VER)
+      vsnprintf_s(messageBuffer, 1024, 1024, msg, args);
+#else
+      vsnprintf(messageBuffer, 1024, msg, args);
+#endif
+
+      va_end(args);
+    }
+
+    message = messageBuffer;
+  }
+
+  return GetAssertHandlerInstance()(condition, message, file, line);
+}
+
+}

cpp/ycm/CustomAssert.h

@@ -0,0 +1,112 @@
+/*
+* Copyright (c) 2008, Power of Two Games LLC
+*               2010, Strahinja Markovic
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of Power of Two Games LLC nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY POWER OF TWO GAMES LLC ``AS IS'' AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL POWER OF TWO GAMES LLC BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef CUSTOM_ASSERT_H
+#define CUSTOM_ASSERT_H
+
+namespace assert_ns { namespace Assert
+{
+
+enum FailBehavior
+{
+  Halt,
+  Continue,
+};
+
+typedef FailBehavior (*Handler)(const char* condition,
+                                const char* msg,
+                                const char* file,
+                                int line);
+
+Handler GetHandler();
+void SetHandler(Handler newHandler);
+
+FailBehavior ReportFailure(const char* condition,
+                           const char* file,
+                           int line,
+                           const char* msg, ...);
+}}
+
+#if defined(_MSC_VER)
+#   define X_HALT() __debugbreak()
+#elif defined(__GNUC__)
+#   define X_HALT() __builtin_trap()
+#else
+#    define X_HALT() exit(__LINE__)
+#endif
+
+#define X_UNUSED(x) do { (void)sizeof(x); } while(0)
+
+#ifndef NDEBUG
+  #define X_ASSERT(cond) \
+    do \
+    { \
+      if (!(cond)) \
+      { \
+        if (assert_ns::Assert::ReportFailure(#cond, __FILE__, __LINE__, 0) == \
+          assert_ns::Assert::Halt) \
+          X_HALT(); \
+      } \
+    } while(0)
+
+  #define X_ASSERT_MSG(cond, msg, ...) \
+    do \
+    { \
+      if (!(cond)) \
+      { \
+        if (assert_ns::Assert::ReportFailure(#cond, __FILE__, __LINE__, (msg), __VA_ARGS__) == \
+          assert_ns::Assert::Halt) \
+          X_HALT(); \
+      } \
+    } while(0)
+
+  #define X_ASSERT_FAIL(msg, ...) \
+    do \
+    { \
+      if (assert_ns::Assert::ReportFailure(0, __FILE__, __LINE__, (msg), __VA_ARGS__) == \
+        assert_ns::Assert::Halt) \
+      X_HALT(); \
+    } while(0)
+
+  #define X_VERIFY(cond) X_ASSERT(cond)
+  #define X_VERIFY_MSG(cond, msg, ...) X_ASSERT_MSG(cond, msg, ##__VA_ARGS__)
+#else
+  #define X_ASSERT(condition) \
+    do { X_UNUSED(condition); } while(0)
+  #define X_ASSERT_MSG(condition, msg, ...) \
+    do { X_UNUSED(condition); X_UNUSED(msg); } while(0)
+  #define X_ASSERT_FAIL(msg, ...) \
+    do { X_UNUSED(msg); } while(0)
+  #define X_VERIFY(cond) (void)(cond)
+  #define X_VERIFY_MSG(cond, msg, ...) \
+    do { (void)(cond); X_UNUSED(msg); } while(0)
+#endif
+
+#define X_STATIC_ASSERT(x) \
+  typedef char StaticAssert[(x) ? 1 : -1];
+
+#endif // CUSTOM_ASSERT_H

cpp/ycm/standard.h

@@ -16,6 +16,7 @@
 // along with YouCompleteMe.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <boost/foreach.hpp>
+#include "CustomAssert.h"
 
 // We're most definitely not going to use
 // it as BOOST_FOREACH.