[gnome-builder/wip/chergert/bug1] debugger: do pointer comparison before line compare

[Christian Hergert <chergert src gnome org>]

commit 00654966fdaa689bb5c555229aceeb0a929394aa
Author: Christian Hergert <chergert redhat com>
Date:   Thu Aug 31 12:49:05 2017 -0700

    debugger: do pointer comparison before line compare

 libide/debugger/ide-debugger-breakpoints.c |   23 ++++++++++++++++++++++-
 1 files changed, 22 insertions(+), 1 deletions(-)
---
diff --git a/libide/debugger/ide-debugger-breakpoints.c b/libide/debugger/ide-debugger-breakpoints.c
index 1c29f98..ab67360 100644
--- a/libide/debugger/ide-debugger-breakpoints.c
+++ b/libide/debugger/ide-debugger-breakpoints.c
@@ -335,7 +335,28 @@ _ide_debugger_breakpoints_remove (IdeDebuggerBreakpoints *self,
   IDE_TRACE_MSG ("removing breakpoint at line %d [breakpoints=%p]",
                  line, self);
 
-  ide_debugger_breakpoints_set_line (self, line, IDE_DEBUGGER_BREAK_NONE, NULL);
+  if (self->lines != NULL)
+    {
+      /* First try to get things by pointer address to reduce chances
+       * of removing the wrong breakpoint from the collection.
+       */
+      for (guint i = 0; i < self->lines->len; i++)
+        {
+          const LineInfo *info = &g_array_index (self->lines, LineInfo, i);
+
+          /* FIXME: Maybe we should use ide_debugger_breakpoint_compare() here
+           *        and ensure that it falls back to file+line/function compare.
+           */
+          if (info->breakpoint == breakpoint)
+            {
+              g_array_remove_index (self->lines, i);
+              g_signal_emit (self, signals [CHANGED], 0);
+              IDE_EXIT;
+            }
+        }
+
+      ide_debugger_breakpoints_set_line (self, line, IDE_DEBUGGER_BREAK_NONE, NULL);
+    }
 
   IDE_EXIT;
 }