close #9039: compiler does not hang anymore in 1 case involving static params and arrays (#17983)

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/misc/t9039.nim b/tests/misc/t9039.nim
new file mode 100644
index 000000000..ba636d1db
--- /dev/null
+++ b/tests/misc/t9039.nim
@@ -0,0 +1,24 @@
+discard """
+  action: reject
+  nimout: '''
+t9039.nim(22, 22) Error: type mismatch: got <array[0..2, int], int, array[0..1, int]>
+but expression 'nesting + 1' is of type: int
+'''
+"""
+
+# bug #9039; this used to hang in 0.19.0
+
+
+
+
+
+# line 15
+func default(T: typedesc[array]): T = discard
+doAssert default(array[3, int]) == [0, 0, 0]
+func shapeBad*[T: not char](s: openarray[T], rank: static[int], nesting = 0, parent_shape = default(array[rank, int])): array[rank, int] =
+  result = parent_shape
+  result[nesting] = s.len
+  when (T is seq|array):
+    result = shapeBad(s[0], nesting + 1, result)
+let a1 = [1, 2, 3].shapeBad(rank = 1)
+let a2 = [[1, 2, 3], [4, 5, 6]].shapeBad(rank = 2)