75239142a8
Allows the expression `..` (without either endpoint) in general, can be used in slicing syntax `&expr[..]` where we previously wrote `&expr[]`. The old syntax &expr[] is not yet removed or warned for.
22 lines
831 B
Rust
22 lines
831 B
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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// Test that slicing syntax gives errors if we have not implemented the trait.
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struct Foo;
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fn main() {
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let x = Foo;
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&x[..]; //~ ERROR cannot index a value of type `Foo`
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&x[Foo..]; //~ ERROR cannot index a value of type `Foo`
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&x[..Foo]; //~ ERROR cannot index a value of type `Foo`
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&x[Foo..Foo]; //~ ERROR cannot index a value of type `Foo`
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}
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