test_tools 0.4.0

Tools for writing and running tests.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

// This could be a cargo build script

use rustc_version::{ version, version_meta, Channel };

fn main()
{
  // Assert we haven't travelled back in time
  assert!( version().unwrap().major >= 1 );

  // Set cfg flags depending on release channel
  match version_meta().unwrap().channel
  {
    Channel::Stable =>
    {
      println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
    }
    Channel::Beta =>
    {
      println!("cargo:rustc-cfg=RUSTC_IS_BETA");
    }
    Channel::Nightly =>
    {
      println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
    }
    Channel::Dev =>
    {
      println!("cargo:rustc-cfg=RUSTC_IS_DEV");
    }
  }

}