1 files changed, 36 insertions, 16 deletions

diff --git a/src/ui/debug.c b/src/ui/debug.c
index 6d3ea5d..6e404a3 100644
--- a/src/ui/debug.c
+++ b/src/ui/debug.c
@@ -3,37 +3,57 @@
 #include "../macros.h"
 #include "ui.internal.h"
 
-struct ui_window_base *ui__check_cast_to_base(void *obj)
+#include <stdio.h>
+
+const char *ui__debug_types[] = {
+#define WT_DEF(_t) "UI__WINDOW_TYPE_" #_t
+  UI__FOREACH_WINDOW_TYPE(WT_DEF)
+#undef WT_DEF
+};
+
+size_t ui__debug_type_count = sizeof(ui__debug_types) / sizeof(ui__debug_types[0]);
+
+const char *ui__debug_type_to_str(unsigned type)
 {
+  if (type >= ui__debug_type_count) return "???";
+  return ui__debug_types[type];
+}
+
+struct ui_window_base *ui__check_cast_to_base(void *obj, const char *file, const char *func, int line)
+{
+  umps_unused(file);
+  umps_unused(func);
+  umps_unused(line);
   return obj; /* this cast always succeeds */
 }
 
-struct ui_window_leaf *ui__check_cast_to_leaf(void *obj)
+#define UMPS__DEBUG_DO_ERROR(_o, _fi, _fn, _ln, _t) \
+  struct ui_window_base *base = _o;                                             \
+  if (base->type != _t) {                                                       \
+    fprintf(stderr, "!!!!!\n!!!!!\n!!!!! UMPS UI bad cast at %s:%d %s (expect %s got %s:%u) !!!!!\n!!!!!\n!!!!!\n", \
+      _fi, _ln, _fn, #_t, ui__debug_type_to_str(base->type), base->type);       \
+    umps_trap;                                                                  \
+  }                                                                             \
+  return _o;
+
+struct ui_window_leaf *ui__check_cast_to_leaf(void *obj, const char *file, const char *func, int line)
 {
-  struct ui_window_base *base = obj;
-  umps_assert(base->type == UI__WINDOW_TYPE_LEAF);
-  return obj;
+  UMPS__DEBUG_DO_ERROR(obj, file, func, line, UI__WINDOW_TYPE_LEAF);
 }
 
-struct ui_window_dock *ui__check_cast_to_dock(void *obj)
+struct ui_window_dock *ui__check_cast_to_dock(void *obj, const char *file, const char *func, int line)
 {
-  struct ui_window_base *base = obj;
-  umps_assert(base->type == UI__WINDOW_TYPE_DOCK);
-  return obj;
+  UMPS__DEBUG_DO_ERROR(obj, file, func, line, UI__WINDOW_TYPE_DOCK);
 }
 
-struct ui_window_root *ui__check_cast_to_root(void *obj)
+struct ui_window_root *ui__check_cast_to_root(void *obj, const char *file, const char *func, int line)
 {
-  struct ui_window_base *base = obj;
-  umps_assert(base->type == UI__WINDOW_TYPE_ROOT);
-  return obj;
+  UMPS__DEBUG_DO_ERROR(obj, file, func, line, UI__WINDOW_TYPE_ROOT);
 }
 
 #else
 
 /* the file must have a declaration */
-void umps__debug_do_nothing(void)
-{
-}
+void umps__debug_do_nothing(void);
 
 #endif