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Diffstat (limited to 'src/test/run-pass/array-slice-vec/slice.rs')
| -rw-r--r-- | src/test/run-pass/array-slice-vec/slice.rs | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/test/run-pass/array-slice-vec/slice.rs b/src/test/run-pass/array-slice-vec/slice.rs new file mode 100644 index 00000000000..b85cb97b6ba --- /dev/null +++ b/src/test/run-pass/array-slice-vec/slice.rs @@ -0,0 +1,91 @@ +// Copyright 2014 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. + +// run-pass +#![allow(unused_variables)] + +// Test slicing sugar. + +extern crate core; +use core::ops::{Index, IndexMut, Range, RangeTo, RangeFrom, RangeFull}; + +static mut COUNT: usize = 0; + +struct Foo; + +impl Index<Range<Foo>> for Foo { + type Output = Foo; + fn index(&self, index: Range<Foo>) -> &Foo { + unsafe { COUNT += 1; } + self + } +} +impl Index<RangeTo<Foo>> for Foo { + type Output = Foo; + fn index(&self, index: RangeTo<Foo>) -> &Foo { + unsafe { COUNT += 1; } + self + } +} +impl Index<RangeFrom<Foo>> for Foo { + type Output = Foo; + fn index(&self, index: RangeFrom<Foo>) -> &Foo { + unsafe { COUNT += 1; } + self + } +} +impl Index<RangeFull> for Foo { + type Output = Foo; + fn index(&self, _index: RangeFull) -> &Foo { + unsafe { COUNT += 1; } + self + } +} + +impl IndexMut<Range<Foo>> for Foo { + fn index_mut(&mut self, index: Range<Foo>) -> &mut Foo { + unsafe { COUNT += 1; } + self + } +} +impl IndexMut<RangeTo<Foo>> for Foo { + fn index_mut(&mut self, index: RangeTo<Foo>) -> &mut Foo { + unsafe { COUNT += 1; } + self + } +} +impl IndexMut<RangeFrom<Foo>> for Foo { + fn index_mut(&mut self, index: RangeFrom<Foo>) -> &mut Foo { + unsafe { COUNT += 1; } + self + } +} +impl IndexMut<RangeFull> for Foo { + fn index_mut(&mut self, _index: RangeFull) -> &mut Foo { + unsafe { COUNT += 1; } + self + } +} + + +fn main() { + let mut x = Foo; + &x[..]; + &x[Foo..]; + &x[..Foo]; + &x[Foo..Foo]; + &mut x[..]; + &mut x[Foo..]; + &mut x[..Foo]; + &mut x[Foo..Foo]; + unsafe { + assert_eq!(COUNT, 8); + } +} |
