1 files changed, 48 insertions, 0 deletions
diff --git a/src/errors.h b/src/errors.h
new file mode 100644
index 000000000..525cb0f09
--- /dev/null
+++ b/src/errors.h
@@ -0,0 +1,48 @@
+#ifndef INCLUDE_errors_h__
+#define INCLUDE_errors_h__
+
+#include "git2/common.h"
+
+/* Deprecated - please use the more advanced functions below. */
+#define git__throw(error, ...) \
+	(git_error_createf(__FILE__, __LINE__, error, __VA_ARGS__), error)
+
+#define git__rethrow(error, ...) \
+	(git_error_createf(__FILE__, __LINE__, error, __VA_ARGS__), error)
+
+/*
+ * This implementation is loosely based on subversion's error
+ * handling.
+ */
+
+git_error * git_error_createf(const char *file, unsigned int line, int code,
+			      const char *msg, ...) GIT_FORMAT_PRINTF(4, 5);
+
+git_error * git_error__quick_wrap(const char *file, int line,
+				 git_error_code error, const char *msg);
+
+/*
+ * Wrap an error with a message. All git_error values are assigned with
+ * child's fields.
+ */
+#define git_error_quick_wrap(error, message)				\
+	git_error__quick_wrap(__FILE__, __LINE__, error, message)
+
+/*
+ * Use this function to wrap functions like
+ *
+ *	git_error * foo(void)
+ *	{
+ *		return git_error_trace(bar());
+ *	}
+ *
+ * Otherwise the call of foo() wouldn't be visible in the trace.
+ *
+ */
+#define git_error_trace(error) \
+	git_error_quick_wrap(error, "traced error");
+
+/* Throw an out-of-memory error */
+extern git_error * git_error_oom(void);
+
+#endif /* INCLUDE_errors_h__ */