discard """ errormsg: "usage of 'disallowIf' is an {.error.} defined at tdisallowif.nim(10, 1)" line: 24 """ template optZero{x+x}(x: int): int = x*3 template andthen{`*`(x,3)}(x: int): int = x*4 template optSubstr1{x = substr(x, 0, b)}(x: string, b: int) = setlen(x, b+1) template disallowIf{ if cond: action else: action2 }(cond: bool, action, action2: typed) {.error.} = action var y = 12 echo y+y var s: array[0..2, string] s[0] = "hello" s[0] = substr(s[0], 0, 2) echo s[0] if s[0] != "hi": echo "do it" echo "more branches" else: discard