ec7c800d2f
This commit removes pretty-expanded from all tests that wind up calling panic! one way or another now that its internals are unstable.
37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Elaborated version of the opening example from RFC 738. This failed
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// to compile before variance because invariance of `Option` prevented
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// us from approximating the lifetimes of `field1` and `field2` to a
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// common intersection.
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#![allow(dead_code)]
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#![feature(core)]
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struct List<'l> {
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field1: &'l i32,
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field2: Option<&'l i32>,
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}
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fn foo(field1: &i32, field2: Option<&i32>) -> i32 {
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let list = List { field1: field1, field2: field2 };
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*list.field1 + list.field2.cloned().unwrap_or(0)
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}
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fn main() {
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let x = 22;
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let y = Some(3);
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let z = None;
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assert_eq!(foo(&x, y.as_ref()), 25);
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assert_eq!(foo(&x, z.as_ref()), 22);
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}
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