rust/src/test/ui/consts/rfc-2203-const-array-repeat-exprs/nll-borrowck.stderr

error: repeated expression does not implement `std::marker::Copy`
  --> $DIR/nll-borrowck.rs:87:37
   |
LL |         let arr: [Option<Bar>; 2] = [x; 2];
   |                                     ^^^^^^ the trait `std::marker::Copy` is not implemented for `std::option::Option<Bar>`
   |
   = note: the `std::marker::Copy` trait is required because the repeated element will be copied

error: repeated expression does not implement `std::marker::Copy`
  --> $DIR/nll-borrowck.rs:103:37
   |
LL |         let arr: [Option<Bar>; 2] = [x; 2];
   |                                     ^^^^^^ the trait `std::marker::Copy` is not implemented for `std::option::Option<Bar>`
   |
   = note: the `std::marker::Copy` trait is required because the repeated element will be copied

error: aborting due to 2 previous errors
rustc/rustc_mir: Implement RFC 2203. This commit implements RFC 2203, allowing constants in array repeat expressions. Firstly, the check that the array repeat expression implements `Copy` is removed and re-implemented in `rustc_mir::borrow_check::nll::type_check` by emitting an error when the MIR contains a `Operand::Move` and the type does not implement `Copy`. Next, the `qualify_consts` pass is modified to construct a `Candidate::Repeat` when it would be correct to promote a array repeat expression. Finally, the `promote_consts` pass is modified to promote the candidates previously identified. 2019-05-26 06:57:00 -05:00			error: repeated expression does not implement `std::marker::Copy`
			`--> $DIR/nll-borrowck.rs:87:37`
			`\|`
			`LL \| let arr: [Option<Bar>; 2] = [x; 2];`
			\| ^^^^^^ the trait `std::marker::Copy` is not implemented for `std::option::Option<Bar>`
			`\|`
			= note: the `std::marker::Copy` trait is required because the repeated element will be copied

			error: repeated expression does not implement `std::marker::Copy`
			`--> $DIR/nll-borrowck.rs:103:37`
			`\|`
			`LL \| let arr: [Option<Bar>; 2] = [x; 2];`
			\| ^^^^^^ the trait `std::marker::Copy` is not implemented for `std::option::Option<Bar>`
			`\|`
			= note: the `std::marker::Copy` trait is required because the repeated element will be copied

			`error: aborting due to 2 previous errors`