rust/tests/ui/async-await/no-non-guaranteed-initialization.stderr

error[E0381]: used binding `y` is possibly-uninitialized
  --> $DIR/no-non-guaranteed-initialization.rs:9:5
   |
LL |     let y;
   |         - binding declared here but left uninitialized
LL |     if x > 5 {
   |        ----- if this `if` condition is `false`, `y` is not initialized
LL |         y = echo(10).await;
LL |     }
   |      - an `else` arm might be missing here, initializing `y`
LL |     y
   |     ^ `y` used here but it is possibly-uninitialized

error: aborting due to previous error

For more information about this error, try `rustc --explain E0381`.
Review comments: wording 2022-06-22 18:04:36 +00:00			error[E0381]: used binding `y` is possibly-uninitialized
compiletest: error if `compile-fail` header in ui test. 2020-02-02 06:05:53 +00:00			`--> $DIR/no-non-guaranteed-initialization.rs:9:5`
Test conditional initialization validation in async fns 2019-08-06 16:54:30 +00:00			`\|`
On partial uninit error point at where we need init When a binding is declared without a value, borrowck verifies that all codepaths have one assignment to them to initialize them fully. If there are any cases where a condition can be met that leaves the binding uninitialized or we attempt to initialize a field of an unitialized binding, we emit E0381. We now look at all the statements that initialize the binding, and use them to explore branching code paths that don't and point at them. If we find no potential places where an assignment to the binding might be missing, we display the spans of all the existing initializers to provide some context. 2022-06-21 18:57:45 +00:00			`LL \| let y;`
Tweak wording and spans 2022-06-21 22:54:17 +00:00			`\| - binding declared here but left uninitialized`
On partial uninit error point at where we need init When a binding is declared without a value, borrowck verifies that all codepaths have one assignment to them to initialize them fully. If there are any cases where a condition can be met that leaves the binding uninitialized or we attempt to initialize a field of an unitialized binding, we emit E0381. We now look at all the statements that initialize the binding, and use them to explore branching code paths that don't and point at them. If we find no potential places where an assignment to the binding might be missing, we display the spans of all the existing initializers to provide some context. 2022-06-21 18:57:45 +00:00			`LL \| if x > 5 {`
Review comments: wording 2022-06-22 18:04:36 +00:00			\| ----- if this `if` condition is `false`, `y` is not initialized
			`LL \| y = echo(10).await;`
			`LL \| }`
			\| - an `else` arm might be missing here, initializing `y`
Test conditional initialization validation in async fns 2019-08-06 16:54:30 +00:00			`LL \| y`
Review comments: wording 2022-06-22 18:04:36 +00:00			\| ^ `y` used here but it is possibly-uninitialized
Test conditional initialization validation in async fns 2019-08-06 16:54:30 +00:00
			`error: aborting due to previous error`

			For more information about this error, try `rustc --explain E0381`.