Nim/tests/macros/tmacro4.nim
2018-12-11 21:23:22 +01:00

18 lines
373 B
Nim

discard """
output: "after"
"""
import
macros, strutils
macro test_macro*(s: string, n: untyped): untyped =
result = newNimNode(nnkStmtList)
var ass : NimNode = newNimNode(nnkAsgn)
add(ass, newIdentNode("str"))
add(ass, newStrLitNode("after"))
add(result, ass)
when true:
var str: string = "before"
test_macro(str):
var i : integer = 123
echo str