patch 8.1.0798: changing a blob while iterating over it works strangely
Problem: Changing a blob while iterating over it works strangely.
Solution: Make a copy of the Blob before iterating.
diff --git a/src/blob.c b/src/blob.c
index bba9989..a954030 100644
--- a/src/blob.c
+++ b/src/blob.c
@@ -57,6 +57,28 @@
++b->bv_refcount;
}
+ int
+blob_copy(typval_T *from, typval_T *to)
+{
+ int ret = OK;
+
+ to->v_type = VAR_BLOB;
+ if (from->vval.v_blob == NULL)
+ to->vval.v_blob = NULL;
+ else if (rettv_blob_alloc(to) == FAIL)
+ ret = FAIL;
+ else
+ {
+ int len = from->vval.v_blob->bv_ga.ga_len;
+
+ if (len > 0)
+ to->vval.v_blob->bv_ga.ga_data =
+ vim_memsave(from->vval.v_blob->bv_ga.ga_data, len);
+ to->vval.v_blob->bv_ga.ga_len = len;
+ }
+ return ret;
+}
+
void
blob_free(blob_T *b)
{