ARC: closure bugfixes (#12677)

* ARC: closure bugfixes
* progress
* ARC closures: create =hooks for captured parameters
* ARC: always destroy constructions like tuples, arrays properly, even in edge cases
* fixes a regression

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/destructor/tlists.nim b/tests/destructor/tlists.nim
index 78c09b105..f5786d936 100644
--- a/tests/destructor/tlists.nim
+++ b/tests/destructor/tlists.nim
@@ -51,7 +51,26 @@ proc tleakingNewStmt =
   for i in 0..10:
     new(x)
 
+iterator infinite(): int {.closure.} =
+  var i = 0
+  while true:
+    yield i
+    inc i
+
+iterator take(it: iterator (): int, numToTake: int): int {.closure.} =
+  var i = 0
+  for x in it():
+    if i >= numToTake:
+      break
+    yield x
+    inc i
+
+proc take3 =
+  for x in infinite.take(3):
+    discard
+
 let startMem = getOccupiedMem()
+take3()
 tlazyList()
 
 mkManyLeaks()