From dc5851e87373203f5c64b9f15872e2865ab85f3f Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Tue, 28 Aug 2018 12:16:14 +0200
Subject: [PATCH] added a test to ensure that for-loop-variables cannot be
 mutated

---
 tests/varres/tprevent_forloopvar_mutations.nim | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tests/varres/tprevent_forloopvar_mutations.nim

diff --git a/tests/varres/tprevent_forloopvar_mutations.nim b/tests/varres/tprevent_forloopvar_mutations.nim
new file mode 100644
index 000000000..15938bb77
--- /dev/null
+++ b/tests/varres/tprevent_forloopvar_mutations.nim
@@ -0,0 +1,15 @@
+discard """
+  line: 15
+  errmsg: "type mismatch: got <int>"
+  nimout: '''type mismatch: got <int>
+but expected one of:
+proc inc[T: Ordinal | uint | uint64](x: var T; y = 1)
+  for a 'var' type a variable needs to be passed, but 'i' is immutable
+
+expression: inc i
+'''
+"""
+
+for i in 0..10:
+  echo i
+  inc i