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-rw-r--r--src/nvim/decoration.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/nvim/decoration.h b/src/nvim/decoration.h
index f43002521c..92001d496d 100644
--- a/src/nvim/decoration.h
+++ b/src/nvim/decoration.h
@@ -100,6 +100,11 @@ typedef struct {
int conceal_attr;
TriState spell;
+
+ // This is used to prevent removing/updating extmarks inside
+ // on_lines callbacks which is not allowed since it can lead to
+ // heap-use-after-free errors.
+ bool running_on_lines;
} DecorState;
EXTERN DecorState decor_state INIT(= { 0 });