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Small doc improvements for std/with (#17556)

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konsumlamm 2021-03-29 12:44:31 +02:00 • committed by GitHub
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7
lib/std/with.nim
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@ -12,15 +12,16 @@
## and https://github.com/nim-lang/RFCs/issues/192 for details leading to this ## and https://github.com/nim-lang/RFCs/issues/192 for details leading to this
## particular design. ## particular design.
## ##
## **Since** version 1.2. ## **Since:** version 1.2.
import macros, private / underscored_calls import macros, private / underscored_calls
macro with*(arg: typed; calls: varargs[untyped]): untyped = macro with*(arg: typed; calls: varargs[untyped]): untyped =
## This macro provides the `chaining`:idx: of function calls. ## This macro provides `chaining`:idx: of function calls.
## It does so by patching every call in `calls` to ## It does so by patching every call in `calls` to
## use `arg` as the first argument. ## use `arg` as the first argument.
## **This evaluates `arg` multiple times!** ##
## .. caution:: This evaluates `arg` multiple times!
runnableExamples: runnableExamples:
var x = "yay" var x = "yay"
with x: with x: