src/test/ui/proc-macro/capture-macro-rules-invoke.rs

   1 // aux-build:test-macros.rs
   2 // check-pass
   3 // compile-flags: -Z span-debug
   4
   5 #![no_std] // Don't load unnecessary hygiene information from std
   6 extern crate std;
   7
   8 extern crate test_macros;
   9 use test_macros::{print_bang, print_bang_consume};
  10
  11 macro_rules! test_matchers {
  12     ($expr:expr, $block:block, $stmt:stmt, $ty:ty, $ident:ident, $lifetime:lifetime,
  13      $meta:meta, $path:path, $vis:vis, $tt:tt, $lit:literal) => {
  14         print_bang_consume!($expr, $block, $stmt, $ty, $ident,
  15                             $lifetime, $meta, $path, $vis, $tt, $lit)
  16     }
  17 }
  18
  19 macro_rules! use_expr {
  20     ($expr:expr) => {
  21         print_bang!($expr)
  22     }
  23 }
  24
  25 macro_rules! use_pat {
  26     ($pat:pat) => {
  27         print_bang!($pat)
  28     }
  29 }
  30
  31 #[allow(dead_code)]
  32 struct Foo;
  33 impl Foo {
  34     #[allow(dead_code)]
  35     fn use_self(self) {
  36         drop(use_expr!(self));
  37         test_matchers!(
  38             1 + 1,
  39             { "a" },
  40             let a = 1,
  41             String,
  42             my_name,
  43             'a,
  44             my_val = 30,
  45             std::option::Option,
  46             pub(in some::path),
  47             [ a b c ],
  48             -30
  49         );
  50     }
  51
  52     fn with_pat(use_pat!((a, b)): (u32, u32)) {
  53         let _ = (a, b);
  54     }
  55 }
  56
  57 fn main() {}