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error: invalid const generic expression
  --> $DIR/bad-const-generic-exprs.rs:4:16
   |
LL |     let _: Wow<if true {}>;
   |                ^^^^^^^^^^
   |
help: expressions must be enclosed in braces to be used as const generic arguments
   |
LL |     let _: Wow<{ if true {} }>;
   |                +            +

error: invalid const generic expression
  --> $DIR/bad-const-generic-exprs.rs:7:16
   |
LL |     let _: Wow<|| ()>;
   |                ^^^^^
   |
help: expressions must be enclosed in braces to be used as const generic arguments
   |
LL |     let _: Wow<{ || () }>;
   |                +       +

error: expected one of `,` or `>`, found `.`
  --> $DIR/bad-const-generic-exprs.rs:10:17
   |
LL |     let _: Wow<A.b>;
   |                 ^ expected one of `,` or `>`
   |
help: expressions must be enclosed in braces to be used as const generic arguments
   |
LL |     let _: Wow<{ A.b }>;
   |                +     +

error: expected one of `,` or `>`, found `.`
  --> $DIR/bad-const-generic-exprs.rs:13:17
   |
LL |     let _: Wow<A.0>;
   |                 ^ expected one of `,` or `>`
   |
help: expressions must be enclosed in braces to be used as const generic arguments
   |
LL |     let _: Wow<{ A.0 }>;
   |                +     +

error: expected type, found `12`
  --> $DIR/bad-const-generic-exprs.rs:19:17
   |
LL |     let _: Wow<[12]>;
   |                 ^^ expected type

error[E0747]: type provided when a constant was expected
  --> $DIR/bad-const-generic-exprs.rs:19:16
   |
LL |     let _: Wow<[12]>;
   |                ^^^^

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0747`.