Removed the dependency of compiler on common. This is done to make compiler self-sufficient so that it is easier to consume by external developers. I tried to replace all instances of assert by simply redefining assert(x) to ASSERT(x), but was getting a lot of compile errors. I still need to investigate that.
Review URL: http://codereview.appspot.com/1461041
git-svn-id: https://angleproject.googlecode.com/svn/trunk@323 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/debug.h b/src/compiler/debug.h
new file mode 100644
index 0000000..565594a
--- /dev/null
+++ b/src/compiler/debug.h
@@ -0,0 +1,53 @@
+//
+// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// debug.h: Debugging utilities.
+
+#ifndef COMPILER_DEBUG_H_
+#define COMPILER_DEBUG_H_
+
+#include <assert.h>
+
+#ifdef _DEBUG
+#define TRACE_ENABLED // define to enable debug message tracing
+#endif // _DEBUG
+
+// Outputs text to the debug log
+#ifdef TRACE_ENABLED
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+void Trace(const char* format, ...);
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#else // TRACE_ENABLED
+
+#define Trace ((void)0)
+
+#endif // TRACE_ENABLED
+
+// A macro asserting a condition and outputting failures to the debug log
+#define ASSERT(expression) do { \
+ if(!(expression)) \
+ Trace("Assert failed: %s(%d): "#expression"\n", __FUNCTION__, __LINE__); \
+ assert(expression); \
+} while(0)
+
+#define UNIMPLEMENTED() do { \
+ Trace("Unimplemented invoked: %s(%d)\n", __FUNCTION__, __LINE__); \
+ assert(false); \
+} while(0)
+
+#define UNREACHABLE() do { \
+ Trace("Unreachable reached: %s(%d)\n", __FUNCTION__, __LINE__); \
+ assert(false); \
+} while(0)
+
+#endif // COMPILER_DEBUG_H_
+