// run-pass | |
#![allow(dead_code)] | |
// ignore-pretty issue #37199 | |
fn match_ref(v: Option<isize>) -> isize { | |
match v { | |
Some(ref i) => { | |
*i | |
} | |
None => {0} | |
} | |
} | |
fn match_ref_unused(v: Option<isize>) { | |
match v { | |
Some(_) => {} | |
None => {} | |
} | |
} | |
fn impure(_i: isize) { | |
} | |
fn match_imm_reg(v: &Option<isize>) { | |
match *v { | |
Some(ref i) => {impure(*i)} // OK because immutable | |
None => {} | |
} | |
} | |
fn match_mut_reg(v: &mut Option<isize>) { | |
match *v { | |
Some(ref i) => {impure(*i)} // OK, frozen | |
None => {} | |
} | |
} | |
pub fn main() { | |
} |