macros as templates fun

macro_template.nim

import macros

macro render*(body: string) :untyped =
    return quote do:
      if (resp.code == 0):
        resp.code = 200
      resp.body = `body`
  
type Response = object
    code: int
    body: string
    
var resp = Response(code:0, body:"")

render(body="abc")