File: macro-seq-followed-by-seq.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (17 lines) | stat: -rw-r--r-- 565 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
//@ run-pass
// Test of allowing two sequences repetitions in a row,
// functionality added as byproduct of RFC amendment #1384
//   https://github.com/rust-lang/rfcs/pull/1384

// Old version of Rust would reject this macro definition, even though
// there are no local ambiguities (the initial `banana` and `orange`
// tokens are enough for the expander to distinguish which case is
// intended).
macro_rules! foo {
    ( $(banana $a:ident)* $(orange $b:tt)* ) => { };
}

fn main() {
    foo!( banana id1 banana id2
          orange hi  orange (hello world) );
}