tests/ui/parser/trait-object-delimiters.stderr

   1 error: ambiguous `+` in a type
   2   --> $DIR/trait-object-delimiters.rs:3:13
   3    |
   4 LL | fn foo1(_: &dyn Drop + AsRef<str>) {}
   5    |             ^^^^^^^^^^^^^^^^^^^^^ help: use parentheses to disambiguate: `(dyn Drop + AsRef<str>)`
   6
   7 error: incorrect parentheses around trait bounds
   8   --> $DIR/trait-object-delimiters.rs:6:17
   9    |
  10 LL | fn foo2(_: &dyn (Drop + AsRef<str>)) {}
  11    |                 ^                 ^
  12    |
  13 help: fix the parentheses
  14    |
  15 LL - fn foo2(_: &dyn (Drop + AsRef<str>)) {}
  16 LL + fn foo2(_: &(dyn Drop + AsRef<str>)) {}
  17    |
  18
  19 error: incorrect parentheses around trait bounds
  20   --> $DIR/trait-object-delimiters.rs:8:25
  21    |
  22 LL | fn foo2_no_space(_: &dyn(Drop + AsRef<str>)) {}
  23    |                         ^                 ^
  24    |
  25 help: fix the parentheses
  26    |
  27 LL - fn foo2_no_space(_: &dyn(Drop + AsRef<str>)) {}
  28 LL + fn foo2_no_space(_: &(dyn Drop + AsRef<str>)) {}
  29    |
  30
  31 error: expected parameter name, found `{`
  32   --> $DIR/trait-object-delimiters.rs:10:17
  33    |
  34 LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
  35    |                 ^ expected parameter name
  36
  37 error: expected one of `!`, `(`, `)`, `*`, `,`, `?`, `for`, `~`, lifetime, or path, found `{`
  38   --> $DIR/trait-object-delimiters.rs:10:17
  39    |
  40 LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
  41    |                -^ expected one of 10 possible tokens
  42    |                |
  43    |                help: missing `,`
  44
  45 error: expected identifier, found `<`
  46   --> $DIR/trait-object-delimiters.rs:14:17
  47    |
  48 LL | fn foo4(_: &dyn <Drop + AsRef<str>>) {}
  49    |                 ^ expected identifier
  50
  51 error: invalid `dyn` keyword
  52   --> $DIR/trait-object-delimiters.rs:16:25
  53    |
  54 LL | fn foo5(_: &(dyn Drop + dyn AsRef<str>)) {}
  55    |                         ^^^ help: remove this keyword
  56    |
  57    = help: `dyn` is only needed at the start of a trait `+`-separated list
  58
  59 error[E0225]: only auto traits can be used as additional traits in a trait object
  60   --> $DIR/trait-object-delimiters.rs:3:24
  61    |
  62 LL | fn foo1(_: &dyn Drop + AsRef<str>) {}
  63    |                 ----   ^^^^^^^^^^ additional non-auto trait
  64    |                 |
  65    |                 first non-auto trait
  66    |
  67    = help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Drop + AsRef<str> {}`
  68    = note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
  69
  70 error[E0224]: at least one trait is required for an object type
  71   --> $DIR/trait-object-delimiters.rs:10:13
  72    |
  73 LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
  74    |             ^^^
  75
  76 error[E0225]: only auto traits can be used as additional traits in a trait object
  77   --> $DIR/trait-object-delimiters.rs:16:29
  78    |
  79 LL | fn foo5(_: &(dyn Drop + dyn AsRef<str>)) {}
  80    |                  ----       ^^^^^^^^^^ additional non-auto trait
  81    |                  |
  82    |                  first non-auto trait
  83    |
  84    = help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Drop + AsRef<str> {}`
  85    = note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
  86
  87 error: aborting due to 10 previous errors
  88
  89 Some errors have detailed explanations: E0224, E0225.
  90 For more information about an error, try `rustc --explain E0224`.