tests/rustdoc/issue-33302.rs

   1 // Ensure constant and array length values are not taken from source
   2 // code, which wreaks havoc with macros.
   3
   4 macro_rules! make {
   5     ($n:expr) => {
   6         pub struct S;
   7
   8         // @has issue_33302/constant.CST.html \
   9         //        '//pre[@class="rust item-decl"]' 'pub const CST: i32'
  10         pub const CST: i32 = ($n * $n);
  11         // @has issue_33302/static.ST.html \
  12         //        '//pre[@class="rust item-decl"]' 'pub static ST: i32'
  13         pub static ST: i32 = ($n * $n);
  14
  15         pub trait T<X> {
  16             fn ignore(_: &X) {}
  17             const C: X;
  18             // @has issue_33302/trait.T.html \
  19             //        '//pre[@class="rust item-decl"]' 'const D: i32'
  20             // @has - '//*[@id="associatedconstant.D"]' 'const D: i32'
  21             const D: i32 = ($n * $n);
  22         }
  23
  24         // @has issue_33302/struct.S.html \
  25         //        '//*[@class="impl"]' 'impl T<[i32; 16]> for S'
  26         // @has - '//*[@id="associatedconstant.C"]' 'const C: [i32; 16]'
  27         // @has - '//*[@id="associatedconstant.D"]' 'const D: i32'
  28         impl T<[i32; ($n * $n)]> for S {
  29             const C: [i32; ($n * $n)] = [0; ($n * $n)];
  30         }
  31
  32         // @has issue_33302/struct.S.html \
  33         //        '//*[@class="impl"]' 'impl T<[i32; 16]> for S'
  34         // @has - '//*[@id="associatedconstant.C-1"]' 'const C: (i32,)'
  35         // @has - '//*[@id="associatedconstant.D-1"]' 'const D: i32'
  36         impl T<(i32,)> for S {
  37             const C: (i32,) = ($n,);
  38         }
  39
  40         // @has issue_33302/struct.S.html \
  41         //        '//*[@class="impl"]' 'impl T<(i32, i32)> for S'
  42         // @has - '//*[@id="associatedconstant.C-2"]' 'const C: (i32, i32)'
  43         // @has - '//*[@id="associatedconstant.D-2"]' 'const D: i32'
  44         impl T<(i32, i32)> for S {
  45             const C: (i32, i32) = ($n, $n);
  46             const D: i32 = ($n / $n);
  47         }
  48     };
  49 }
  50
  51 make!(4);