[gnome-builder/wip/chergert/bug1: 10/35] debugger: fix precondition checks

[Christian Hergert <chergert src gnome org>]

commit e26305b9c4ab1cfdfaf4f5d26036b6a2cf56335b
Author: Christian Hergert <chergert redhat com>
Date:   Sat Aug 26 20:04:27 2017 -0700

    debugger: fix precondition checks

 libide/debugger/ide-debugger-breakpoints-view.c |    1 +
 libide/debugger/ide-debugger-threads-view.c     |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/libide/debugger/ide-debugger-breakpoints-view.c b/libide/debugger/ide-debugger-breakpoints-view.c
index 965cc9d..3959a52 100644
--- a/libide/debugger/ide-debugger-breakpoints-view.c
+++ b/libide/debugger/ide-debugger-breakpoints-view.c
@@ -544,6 +544,7 @@ ide_debugger_breakpoints_view_set_debugger (IdeDebuggerBreakpointsView *self,
                                             IdeDebugger                *debugger)
 {
   g_return_if_fail (IDE_IS_DEBUGGER_BREAKPOINTS_VIEW (self));
+  g_return_if_fail (!debugger || IDE_IS_DEBUGGER (debugger));
 
   if (self->debugger_signals != NULL)
     {
diff --git a/libide/debugger/ide-debugger-threads-view.c b/libide/debugger/ide-debugger-threads-view.c
index ab6a64c..e3647d0 100644
--- a/libide/debugger/ide-debugger-threads-view.c
+++ b/libide/debugger/ide-debugger-threads-view.c
@@ -814,7 +814,7 @@ ide_debugger_threads_view_set_debugger (IdeDebuggerThreadsView *self,
                                         IdeDebugger            *debugger)
 {
   g_return_if_fail (IDE_IS_DEBUGGER_THREADS_VIEW (self));
-  g_return_if_fail (IDE_IS_DEBUGGER (debugger));
+  g_return_if_fail (!debugger || IDE_IS_DEBUGGER (debugger));
 
   dzl_signal_group_set_target (self->debugger_signals, debugger);
 }