src/test/compile-fail/repeat_count.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 // Regression test for issue #3645
  12
  13 fn main() {
  14     let n = 1;
  15     let a = [0; n];
  16     //~^ ERROR constant evaluation error
  17     //~| non-constant path in constant expression
  18     let b = [0; ()];
  19     //~^ ERROR mismatched types
  20     //~| expected type `usize`
  21     //~| found type `()`
  22     //~| expected usize, found ()
  23     //~| ERROR expected `usize` for repeat count, found tuple [E0306]
  24     //~| expected `usize`
  25     let c = [0; true];
  26     //~^ ERROR mismatched types
  27     //~| expected usize, found bool
  28     //~| ERROR expected `usize` for repeat count, found boolean [E0306]
  29     //~| expected `usize`
  30     let d = [0; 0.5];
  31     //~^ ERROR mismatched types
  32     //~| expected type `usize`
  33     //~| found type `{float}`
  34     //~| expected usize, found floating-point variable
  35     //~| ERROR expected `usize` for repeat count, found float [E0306]
  36     //~| expected `usize`
  37     let e = [0; "foo"];
  38     //~^ ERROR mismatched types
  39     //~| expected type `usize`
  40     //~| found type `&'static str`
  41     //~| expected usize, found reference
  42     //~| ERROR expected `usize` for repeat count, found string literal [E0306]
  43     //~| expected `usize`
  44     let f = [0; -4_isize];
  45     //~^ ERROR constant evaluation error
  46     //~| expected usize, found isize
  47     //~| ERROR mismatched types
  48     //~| expected usize, found isize
  49     let f = [0_usize; -1_isize];
  50     //~^ ERROR constant evaluation error
  51     //~| expected usize, found isize
  52     //~| ERROR mismatched types
  53     //~| expected usize, found isize
  54     struct G {
  55         g: (),
  56     }
  57     let g = [0; G { g: () }];
  58     //~^ ERROR mismatched types
  59     //~| expected type `usize`
  60     //~| found type `main::G`
  61     //~| expected usize, found struct `main::G`
  62     //~| ERROR expected `usize` for repeat count, found struct [E0306]
  63     //~| expected `usize`
  64 }