fixes #22687; js backend - std/bitops/bitsliced throws compile error … (

#22722) …in typeMasked fixes #22687
nim-lang · Sep 20, 2023 · ed30692 · ed30692
1 parent d82bc0a
commit ed30692
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/lib/pure/bitops.nim b/lib/pure/bitops.nim
@@ -65,7 +65,7 @@ type BitsRange*[T] = range[0..sizeof(T)*8-1]
 
 template typeMasked[T: SomeInteger](x: T): T =
  when defined(js):
- x and ((0xffffffff_ffffffff'u shr (64 - sizeof(T) * 8)))
+ T(x and ((0xffffffff_ffffffff'u shr (64 - sizeof(T) * 8))))
  else:
  x
 

diff --git a/tests/stdlib/t21564.nim b/tests/stdlib/t21564.nim
@@ -22,6 +22,10 @@ proc main() =
  # test `bitops.toMask` patch via bitops.masked
  doAssert(0x12FFFF34.masked(8..23) == 0x00FFFF00)
 
+ block: # bug #22687
+ var a: uint8 = 0b1111_1111
+ doAssert a.bitsliced(4..7).int == 15
+
 main()
 
 static: