[g-ir-compiler] Slightly less lame error messages

To make things really better we should track the line origin of
element from the .gir file (and actually we need to do better
checking in the scanner), but this is slightly less lame.

1 files changed, 34 insertions, 0 deletions

diff --git a/girepository/girmodule.c b/girepository/girmodule.c
index bf1e856b..b954d15d 100644
--- a/girepository/girmodule.c
+++ b/girepository/girmodule.c
@@ -20,6 +20,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "girmodule.h"
 #include "girnode.h"
@@ -75,6 +76,39 @@ g_ir_module_free (GIrModule *module)
   g_free (module);
 }
 
+/**
+ * g_ir_module_fatal:
+ * @module: Current module
+ * @line: Origin line number, or 0 if unknown
+ * @msg: printf-format string
+ * @args: Remaining arguments
+ *
+ * Report a fatal error, then exit.
+ */
+void
+g_ir_module_fatal (GIrModule  *module,
+                   guint       line,
+                   const char *msg,
+                   ...)
+{
+  char *formatted;
+
+  va_list args;
+  
+  va_start (args, msg);
+  
+  formatted = g_strdup_vprintf (msg, args);
+  
+  if (line)
+    g_printerr ("%s-%s.gir:%d: error: %s\n", module->name, module->version, line, formatted);
+  else
+    g_printerr ("%s-%s.gir: error: %s\n", module->name, module->version, formatted);
+    
+  exit (1);
+  
+  va_end (args);
+}
+
 static void
 add_alias_foreach (gpointer key,
 		   gpointer value,