closes #16331; add testcase (#20730)

2026-04-19 14:00:35 +00:00 · 2022-11-02 12:01:36 +08:00
parent 58f79e7c3e
commit 841d9d5975
1 changed files with 12 additions and 0 deletions
--- a/tests/tuples/ttuples_issues.nim
+++ b/tests/tuples/ttuples_issues.nim
@@ -107,6 +107,18 @@ template main() =
        return (x,y)
    doAssert bar() == (10, (11,))

+  block: # bug #16331
+    type T1 = tuple[a, b: int]
+
+    proc p(b: bool): T1 =
+      var x: T1 = (10, 20)
+      x = if b: (x.b, x.a) else: (-x.b, -x.a)
+      x
+
+    doAssert p(false) == (-20, -10)
+    doAssert p(true) == (20, 10)
+
+
 proc mainProc() =
  # other tests should be in `main`
  block: