src/test/compile-fail/coherence-impls-copy.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![feature(optin_builtin_traits)]
  12
  13 use std::marker::Copy;
  14
  15 enum TestE {
  16   A
  17 }
  18
  19 struct MyType;
  20
  21 struct NotSync;
  22 impl !Sync for NotSync {}
  23
  24 impl Copy for TestE {}
  25 impl Clone for TestE { fn clone(&self) -> Self { *self } }
  26
  27 impl Copy for MyType {}
  28
  29 impl Copy for &'static mut MyType {}
  30 //~^ ERROR the trait `Copy` may not be implemented for this type
  31 //~| NOTE type is not a structure or enumeration
  32 impl Clone for MyType { fn clone(&self) -> Self { *self } }
  33
  34 impl Copy for (MyType, MyType) {}
  35 //~^ ERROR the trait `Copy` may not be implemented for this type
  36 //~| NOTE type is not a structure or enumeration
  37 //~| ERROR only traits defined in the current crate can be implemented for arbitrary types
  38 //~| NOTE impl doesn't use types inside crate
  39 //~| NOTE the impl does not reference any types defined in this crate
  40
  41 impl Copy for &'static NotSync {}
  42 //~^ ERROR the trait `Copy` may not be implemented for this type
  43 //~| NOTE type is not a structure or enumeration
  44
  45 impl Copy for [MyType] {}
  46 //~^ ERROR the trait `Copy` may not be implemented for this type
  47 //~| NOTE type is not a structure or enumeration
  48 //~| ERROR only traits defined in the current crate can be implemented for arbitrary types
  49 //~| NOTE impl doesn't use types inside crate
  50 //~| NOTE the impl does not reference any types defined in this crate
  51
  52 impl Copy for &'static [NotSync] {}
  53 //~^ ERROR the trait `Copy` may not be implemented for this type
  54 //~| NOTE type is not a structure or enumeration
  55 //~| ERROR only traits defined in the current crate can be implemented for arbitrary types
  56 //~| NOTE impl doesn't use types inside crate
  57 //~| NOTE the impl does not reference any types defined in this crate
  58
  59 fn main() {
  60 }