inc and dec are atomic in JS backend (#16129)

nim-lang · Nov 25, 2020 · 7848da7 · 7848da7
1 parent e220f75
commit 7848da7
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diff --git a/lib/system.nim b/lib/system.nim
@@ -1774,7 +1774,7 @@ when not defined(nimscript):
 when not declared(sysFatal):
   include "system/fatal"
 
-when notJSnotNims:
+when not defined(nimscript):
   {.push stackTrace: off, profiler: off.}
 
   proc atomicInc*(memLoc: var int, x: int = 1): int {.inline,

diff --git a/tests/system/tatomics1.nim b/tests/system/tatomics1.nim
@@ -0,0 +1,9 @@
+discard """
+  target: "c cpp js"
+"""
+
+var x = 10
+atomicInc(x)
+doAssert x == 11
+atomicDec(x)
+doAssert x == 10