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system.nim cleanup some exported constants which should never have be… (#17909)

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* system.nim cleanup some exported constants which should never have been exported
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Andreas Rumpf 2021-05-01 11:10:40 +02:00 • committed by GitHub
commit fb86271556
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10 changed files with 32 additions and 29 deletions
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lib/system/coro_detection.nim Normal file
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## Coroutine detection logic
template coroutinesSupportedPlatform(): bool =
when defined(sparc) or defined(ELATE) or defined(boehmgc) or defined(gogc) or
defined(nogc) or defined(gcRegions) or defined(gcMarkAndSweep):
false
else:
true
when defined(nimCoroutines):
# Explicit opt-in.
when not coroutinesSupportedPlatform():
{.error: "Coroutines are not supported on this architecture and/or garbage collector.".}
const nimCoroutines* = true
elif defined(noNimCoroutines):
# Explicit opt-out.
const nimCoroutines* = false
else:
# Autodetect coroutine support.
const nimCoroutines* = false