rust/src/test/compile-fail/non-const.rs

59 lines
1.3 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.
// Test that various non const things are rejected.
fn foo<T:Const>(_x: T) { }
struct r {
x:int,
}
impl Drop for r {
fn finalize(&self) {}
}
fn r(x:int) -> r {
r {
x: x
}
}
struct r2 {
x:@mut int,
}
impl Drop for r2 {
fn finalize(&self) {}
}
fn r2(x:@mut int) -> r2 {
r2 {
x: x
}
}
fn main() {
struct A<T> { f: T }
struct B<T> { mut f: T }
foo(A {f: 3});
foo(B {mut f: 3}); //~ ERROR does not fulfill `Const`
foo(~[1]);
foo(~[mut 1]); //~ ERROR does not fulfill `Const`
foo(~1);
foo(~mut 1); //~ ERROR does not fulfill `Const`
foo(@1);
foo(@mut 1); //~ ERROR does not fulfill `Const`
foo(r(1)); // this is okay now.
foo(r2(@mut 1)); //~ ERROR does not fulfill `Const`
foo(A {f: B {mut f: 1}}); //~ ERROR does not fulfill `Const`
}