File: block-to-expr-metavar.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-- 360 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
//@ check-pass
//
// A test case where a `block` fragment specifier is interpreted as an `expr`
// fragment specifier. It's an interesting case for the handling of invisible
// delimiters.

macro_rules! m_expr {
    ($e:expr) => { const _CURRENT: u32 = $e; };
}

macro_rules! m_block {
    ($b:block) => ( m_expr!($b); );
}

fn main() {
    m_block!({ 1 });
}