rust/src/test/compile-fail/regions-bounds.rs

33 lines
1.1 KiB
Rust

// Copyright 2012 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.
// Check that explicit region bounds are allowed on the various
// nominal types (but not on other types) and that they are type
// checked.
struct an_enum(&'self int);
struct a_class { x:&'self int }
fn a_fn1(e: an_enum<'a>) -> an_enum<'b> {
return e; //~ ERROR mismatched types: expected `an_enum/&'b ` but found `an_enum/&'a `
}
fn a_fn3(e: a_class<'a>) -> a_class<'b> {
return e; //~ ERROR mismatched types: expected `a_class/&'b ` but found `a_class/&'a `
}
fn a_fn4(e: int<'a>) -> int<'b> {
//~^ ERROR region parameters are not allowed on this type
//~^^ ERROR region parameters are not allowed on this type
return e;
}
fn main() { }