fix nim-lang#22548;environment misses for type reference in iterator …

…access nested in closure
bung87 · Aug 25, 2023 · 256a490 · 256a490
1 parent d677ed3
commit 256a490
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diff --git a/compiler/lambdalifting.nim b/compiler/lambdalifting.nim
@@ -516,6 +516,8 @@ proc detectCapturedVars(n: PNode; owner: PSym; c: var DetectionPass) =
       detectCapturedVars(n[namePos], owner, c)
   of nkReturnStmt:
     detectCapturedVars(n[0], owner, c)
+  of nkIdentDefs:
+    detectCapturedVars(n[^1], owner, c)
   else:
     for i in 0..<n.len:
       detectCapturedVars(n[i], owner, c)

diff --git a/tests/iter/t22548.nim b/tests/iter/t22548.nim
@@ -0,0 +1,17 @@
+type Xxx[T] = object
+
+iterator x(v: string): char =
+  var v2: Xxx[int]
+
+  var y: v2.T
+
+  echo y
+
+proc bbb(vv: string): proc () =
+  proc xxx() =
+    for c in x(vv):
+      echo c
+
+  return xxx
+
+bbb("test")()