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correct effect tracking for .borrowed procs [backport] (#18882)

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* correct effect tracking for .borrowed procs [backport]

* progress

* fix error message in a test

* correctly fix it

Co-authored-by: narimiran <narimiran@disroot.org>
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Andreas Rumpf 2021-09-23 16:47:24 +02:00 • committed by GitHub
commit 90a2b5afd8
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8 changed files with 20 additions and 12 deletions
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lib/system.nim
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@ -2453,7 +2453,7 @@ when notJSnotNims:
else:
{.error: "Only closure function and iterator are allowed!".}
proc finished*[T: proc](x: T): bool {.noSideEffect, inline.} =
proc finished*[T: proc](x: T): bool {.noSideEffect, inline, magic: "Finished".} =
## It can be used to determine if a first class iterator has finished.
when T is "iterator":
{.emit: """