src/test/run-pass/typeid-intrinsic.rs

   1 // Copyright 2013-2014 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 // aux-build:typeid-intrinsic.rs
  12 // aux-build:typeid-intrinsic2.rs
  13
  14 #![feature(core_intrinsics)]
  15
  16 extern crate typeid_intrinsic as other1;
  17 extern crate typeid_intrinsic2 as other2;
  18
  19 use std::hash::{SipHasher, Hasher, Hash};
  20 use std::any::TypeId;
  21
  22 struct A;
  23 struct Test;
  24
  25 pub fn main() {
  26     unsafe {
  27         assert_eq!(TypeId::of::<other1::A>(), other1::id_A());
  28         assert_eq!(TypeId::of::<other1::B>(), other1::id_B());
  29         assert_eq!(TypeId::of::<other1::C>(), other1::id_C());
  30         assert_eq!(TypeId::of::<other1::D>(), other1::id_D());
  31         assert_eq!(TypeId::of::<other1::E>(), other1::id_E());
  32         assert_eq!(TypeId::of::<other1::F>(), other1::id_F());
  33         assert_eq!(TypeId::of::<other1::G>(), other1::id_G());
  34         assert_eq!(TypeId::of::<other1::H>(), other1::id_H());
  35
  36         assert_eq!(TypeId::of::<other2::A>(), other2::id_A());
  37         assert_eq!(TypeId::of::<other2::B>(), other2::id_B());
  38         assert_eq!(TypeId::of::<other2::C>(), other2::id_C());
  39         assert_eq!(TypeId::of::<other2::D>(), other2::id_D());
  40         assert_eq!(TypeId::of::<other2::E>(), other2::id_E());
  41         assert_eq!(TypeId::of::<other2::F>(), other2::id_F());
  42         assert_eq!(TypeId::of::<other2::G>(), other2::id_G());
  43         assert_eq!(TypeId::of::<other2::H>(), other2::id_H());
  44
  45         assert_eq!(other1::id_F(), other2::id_F());
  46         assert_eq!(other1::id_G(), other2::id_G());
  47         assert_eq!(other1::id_H(), other2::id_H());
  48
  49         assert_eq!(TypeId::of::<isize>(), other2::foo::<isize>());
  50         assert_eq!(TypeId::of::<isize>(), other1::foo::<isize>());
  51         assert_eq!(other2::foo::<isize>(), other1::foo::<isize>());
  52         assert_eq!(TypeId::of::<A>(), other2::foo::<A>());
  53         assert_eq!(TypeId::of::<A>(), other1::foo::<A>());
  54         assert_eq!(other2::foo::<A>(), other1::foo::<A>());
  55     }
  56
  57     // sanity test of TypeId
  58     let (a, b, c) = (TypeId::of::<usize>(), TypeId::of::<&'static str>(),
  59                      TypeId::of::<Test>());
  60     let (d, e, f) = (TypeId::of::<usize>(), TypeId::of::<&'static str>(),
  61                      TypeId::of::<Test>());
  62
  63     assert!(a != b);
  64     assert!(a != c);
  65     assert!(b != c);
  66
  67     assert_eq!(a, d);
  68     assert_eq!(b, e);
  69     assert_eq!(c, f);
  70
  71     // check it has a hash
  72     let (a, b) = (TypeId::of::<usize>(), TypeId::of::<usize>());
  73
  74     let mut s1 = SipHasher::new();
  75     a.hash(&mut s1);
  76     let mut s2 = SipHasher::new();
  77     b.hash(&mut s2);
  78
  79     assert_eq!(s1.finish(), s2.finish());
  80 }