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make seq.add more effective for --newruntime

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This commit is contained in:
Araq 2019-04-25 13:54:25 +02:00
commit 1f7615ad9d
2 changed files with 15 additions and 12 deletions
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13
lib/system.nim
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@ -1992,18 +1992,7 @@ when not defined(JS) and not defined(nimscript) and hostOS != "standalone":
when not defined(JS) and not defined(nimscript) and hasAlloc and not defined(gcDestructors):
proc addChar(s: NimString, c: char): NimString {.compilerProc, benign.}
when defined(gcDestructors):
proc add*[T](x: var seq[T], y: sink T) {.magic: "AppendSeqElem", noSideEffect.} =
## Generic proc for adding a data item `y` to a container `x`.
##
## For containers that have an order, `add` means *append*. New generic
## containers should also call their adding proc `add` for consistency.
## Generic code becomes much easier to write if the Nim naming scheme is
## respected.
let xl = x.len
setLen(x, xl + 1)
x[xl] = y
else:
when not defined(gcDestructors):
proc add*[T](x: var seq[T], y: T) {.magic: "AppendSeqElem", noSideEffect.}
## Generic proc for adding a data item `y` to a container `x`.
##