40 lines
1.4 KiB
Rust
40 lines
1.4 KiB
Rust
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// Copyright 2012 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 various ways to construct a pointer with a longer lifetime
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// than the thing it points at and ensure that they result in
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// errors. See also regions-free-region-ordering-callee.rs
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struct Paramd<'self> { x: &'self uint }
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fn call1<'a>(x: &'a uint) {
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let y: uint = 3;
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let z: &'a &'blk uint = &(&y);
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//~^ ERROR pointer has a longer lifetime than the data it references
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}
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fn call2<'a, 'b>(a: &'a uint, b: &'b uint) {
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let z: Option<&'b &'a uint> = None;
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//~^ ERROR pointer has a longer lifetime than the data it references
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}
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fn call3<'a, 'b>(a: &'a uint, b: &'b uint) {
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let y: Paramd<'a> = Paramd { x: a };
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let z: Option<&'b Paramd<'a>> = None;
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//~^ ERROR pointer has a longer lifetime than the data it references
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}
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fn call4<'a, 'b>(a: &'a uint, b: &'b uint) {
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let z: Option<&fn(&'a &'b uint)> = None;
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//~^ ERROR pointer has a longer lifetime than the data it references
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}
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fn main() {}
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