fixes #7878

2 files changed, 11 insertions, 2 deletions

diff --git a/compiler/ccgexprs.nim b/compiler/ccgexprs.nim
index d00371dd8..ed6255004 100644
--- a/compiler/ccgexprs.nim
+++ b/compiler/ccgexprs.nim
@@ -1501,7 +1501,7 @@ proc genRepr(p: BProc, e: PNode, d: var TLoc) =
                 addrLoc(p.config, a), genTypeInfo(p.module, t, e.info)]), a.storage)
   of tyOpenArray, tyVarargs:
     var b: TLoc
-    case a.t.kind
+    case skipTypes(a.t, abstractVarRange).kind
     of tyOpenArray, tyVarargs:
       putIntoDest(p, b, e, "$1, $1Len_0" % [rdLoc(a)], a.storage)
     of tyString, tySequence:
diff --git a/tests/stdlib/trepr.nim b/tests/stdlib/trepr.nim
index 33cb581ef..c1941bd38 100644
--- a/tests/stdlib/trepr.nim
+++ b/tests/stdlib/trepr.nim
@@ -1,5 +1,6 @@
 discard """
-  output: "{a, b}{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}"
+  output: '''{a, b}{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}
+[1, 2, 3, 4, 5, 6]'''
 """
 
 type
@@ -25,3 +26,11 @@ when false:
 #  "a", "b", "c", "d", "e"
 #]
 #echo(repr(testseq))
+
+# bug #7878
+proc test(variable: var openarray[int]) =
+  echo repr(variable)
+
+var arr = [1, 2, 3, 4, 5, 6]
+
+test(arr)