99 lines
1.9 KiB
Rust
99 lines
1.9 KiB
Rust
// Copyright 2014 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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#![allow(unknown_features)]
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#![feature(box_syntax)]
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#[derive(PartialEq, Debug)]
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struct Bar {
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x: isize
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}
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impl Drop for Bar {
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fn drop(&mut self) {
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assert_eq!(self.x, 22);
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}
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}
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#[derive(PartialEq, Debug)]
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struct Foo {
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x: Bar,
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a: isize
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}
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fn foo() -> Result<Foo, isize> {
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return Ok(Foo {
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x: Bar { x: 22 },
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a: return Err(32)
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});
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}
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fn baz() -> Result<Foo, isize> {
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Ok(Foo {
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x: Bar { x: 22 },
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a: return Err(32)
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})
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}
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// explicit immediate return
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fn aa() -> isize {
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return 3;
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}
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// implicit immediate return
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fn bb() -> isize {
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3
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}
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// implicit outptr return
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fn cc() -> Result<isize, isize> {
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Ok(3)
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}
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// explicit outptr return
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fn dd() -> Result<isize, isize> {
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return Ok(3);
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}
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trait A {
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fn aaa(&self) -> isize {
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3
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}
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fn bbb(&self) -> isize {
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return 3;
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}
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fn ccc(&self) -> Result<isize, isize> {
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Ok(3)
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}
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fn ddd(&self) -> Result<isize, isize> {
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return Ok(3);
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}
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}
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impl A for isize {}
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fn main() {
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assert_eq!(foo(), Err(32));
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assert_eq!(baz(), Err(32));
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assert_eq!(aa(), 3);
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assert_eq!(bb(), 3);
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assert_eq!(cc().unwrap(), 3);
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assert_eq!(dd().unwrap(), 3);
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let i = box 32isize as Box<A>;
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assert_eq!(i.aaa(), 3);
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let i = box 32isize as Box<A>;
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assert_eq!(i.bbb(), 3);
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let i = box 32isize as Box<A>;
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assert_eq!(i.ccc().unwrap(), 3);
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let i = box 32isize as Box<A>;
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assert_eq!(i.ddd().unwrap(), 3);
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}
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