rust/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.stderr

error: expected expression, found `let` statement
  --> $DIR/ast-validate-guards.rs:5:20
   |
LL |         Ok(opt) if let Some(4) = opt || false  => {}
   |                    ^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if` and `while` expressions
note: `||` operators are not supported in let chain expressions
  --> $DIR/ast-validate-guards.rs:5:38
   |
LL |         Ok(opt) if let Some(4) = opt || false  => {}
   |                                      ^^

error: module cannot be declared unsafe
  --> $DIR/ast-validate-guards.rs:15:17
   |
LL |                 unsafe mod a {};
   |                 ^^^^^^

error: aborting due to 2 previous errors
Move let expression checking to parsing There was an incomplete version of the check in parsing and a second version in AST validation. This meant that some, but not all, invalid uses were allowed inside macros/disabled cfgs. It also means that later passes have a hard time knowing when the let expression is in a valid location, sometimes causing ICEs. - Add a field to ExprKind::Let in AST/HIR to mark whether it's in a valid location. - Suppress later errors and MIR construction for invalid let expressions. 2023-09-08 05:14:36 -05:00			error: expected expression, found `let` statement
Run AST validation on match guards correctly 2023-05-22 08:52:52 -05:00			`--> $DIR/ast-validate-guards.rs:5:20`
			`\|`
			`LL \| Ok(opt) if let Some(4) = opt \|\| false => {}`
			`\| ^^^^^^^^^^^^^^^^^`
			`\|`
Address review comments - Add doc comment to new type - Restore "only supported directly in conditions of `if` and `while` expressions" note - Rename variant with clearer name 2023-09-13 10:00:31 -05:00			= note: only supported directly in conditions of `if` and `while` expressions
Run AST validation on match guards correctly 2023-05-22 08:52:52 -05:00			note: `\|\|` operators are not supported in let chain expressions
			`--> $DIR/ast-validate-guards.rs:5:38`
			`\|`
			`LL \| Ok(opt) if let Some(4) = opt \|\| false => {}`
			`\| ^^`

			`error: module cannot be declared unsafe`
			`--> $DIR/ast-validate-guards.rs:15:17`
			`\|`
			`LL \| unsafe mod a {};`
			`\| ^^^^^^`

			`error: aborting due to 2 previous errors`