mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-27 11:05:06 +00:00
bb495d6d3e
`NtBlock` is the last remaining variant of `Nonterminal`, so once it is gone then `Nonterminal` can be removed as well.
34 lines
496 B
Rust
34 lines
496 B
Rust
//
|
|
//@ run-pass
|
|
//
|
|
// Description - ensure block metavariables can act as valid function bodies
|
|
// Covered cases: free functions, struct methods, and default trait functions
|
|
|
|
macro_rules! def_fn {
|
|
($body:block) => {
|
|
fn bar() $body
|
|
}
|
|
}
|
|
|
|
trait Foo {
|
|
def_fn!({ println!("foo"); });
|
|
}
|
|
|
|
struct Baz {}
|
|
|
|
impl Foo for Baz {}
|
|
|
|
struct Qux {}
|
|
|
|
impl Qux {
|
|
def_fn!({ println!("qux"); });
|
|
}
|
|
|
|
def_fn!({ println!("quux"); });
|
|
|
|
pub fn main() {
|
|
Baz::bar();
|
|
Qux::bar();
|
|
bar();
|
|
}
|