mirror of
https://github.com/rust-lang/rust
synced 2024-11-05 20:45:15 +00:00
26 lines
425 B
Rust
26 lines
425 B
Rust
//@ run-pass
|
|
// Regression test for Issue #29092.
|
|
//
|
|
// (Possibly redundant with regression test run-pass/issue-30530.rs)
|
|
|
|
use self::Term::*;
|
|
|
|
#[derive(Clone)]
|
|
pub enum Term {
|
|
Dummy,
|
|
A(Box<Term>),
|
|
B(Box<Term>),
|
|
}
|
|
|
|
// a small-step evaluator
|
|
pub fn small_eval(v: Term) -> Term {
|
|
match v {
|
|
A(t) => *t.clone(),
|
|
B(t) => *t.clone(),
|
|
_ => Dummy,
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
small_eval(Dummy);
|
|
}
|