28 lines
791 B
Nim
28 lines
791 B
Nim
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2016 Andreas Rumpf
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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## ``system.addQuitProc`` is nice and very useful but due to its C-based
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## implementation it doesn't support closures which limits its usefulness.
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## This module fixes this. Later versions of this module will also
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## support the JavaScript backend.
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var
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gClosures: seq[proc () {.closure.}]
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proc callClosures() {.noconv.} =
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for i in countdown(gClosures.len-1, 0):
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gClosures[i]()
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proc addQuitClosure*(cl: proc () {.closure.}) =
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## Like ``system.addQuitProc`` but it supports closures.
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if gClosures.len == 0:
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addQuitProc(callClosures)
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gClosures = @[cl]
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else:
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gClosures.add(cl)
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