| // Copyright 2012 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Test that we correctly consider the type of `match` to be the LUB |
| // of the various arms, particularly in the case where regions are |
| // involved. |
| |
| pub fn opt_str0<'a>(maybestr: &'a Option<String>) -> &'a str { |
| match *maybestr { |
| Some(ref s) => { |
| let s: &'a str = s; |
| s |
| } |
| None => "(none)", |
| } |
| } |
| |
| pub fn opt_str1<'a>(maybestr: &'a Option<String>) -> &'a str { |
| match *maybestr { |
| None => "(none)", |
| Some(ref s) => { |
| let s: &'a str = s; |
| s |
| } |
| } |
| } |
| |
| pub fn opt_str2<'a>(maybestr: &'a Option<String>) -> &'static str { |
| match *maybestr { |
| None => "(none)", |
| Some(ref s) => { |
| let s: &'a str = s; |
| s //~ ERROR E0312 |
| } |
| } |
| } |
| |
| pub fn opt_str3<'a>(maybestr: &'a Option<String>) -> &'static str { |
| match *maybestr { |
| Some(ref s) => { |
| let s: &'a str = s; |
| s //~ ERROR E0312 |
| } |
| None => "(none)", |
| } |
| } |
| |
| fn main() {} |