import macros macro macro_bug*(s: stmt): stmt {.immediate.} = s.expectKind({nnkProcDef, nnkMethodDef}) var params = s.params let genericParams = s[2] result = newNimNode(nnkProcDef).add( s.name, s[1], genericParams, params, pragma(s), newEmptyNode()) var body = body(s) # Fails here. var call = newCall("macro_bug", s.params[1][0]) body.insert(0, call) result.add(body)