mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
77e24f90f5
rust/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.stderr

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

34 lines
1.3 KiB
Plaintext
Raw Normal View History

Review comments: wording
2022-06-22 13:04:36 -05:00
error[E0381]: used binding `z` is possibly-uninitialized
Formally implement let chains
2022-01-18 16:38:17 -06:00
--> $DIR/chains-without-let.rs:3:34
|
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 13:57:45 -05:00
LL | let z;
Tweak wording and spans
2022-06-21 17:54:17 -05:00
| - binding declared here but left uninitialized
Formally implement let chains
2022-01-18 16:38:17 -06:00
LL | if true && { z = 3; true} && z == 3 {}
Review comments: wording
2022-06-22 13:04:36 -05:00
| ----- ^ `z` used here but it is possibly-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 13:57:45 -05:00
| |
| binding initialized here in some conditions
Formally implement let chains
2022-01-18 16:38:17 -06:00
Review comments: wording
2022-06-22 13:04:36 -05:00
error[E0381]: used binding `z` is possibly-uninitialized
Formally implement let chains
2022-01-18 16:38:17 -06:00
--> $DIR/chains-without-let.rs:9:31
|
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 13:57:45 -05:00
LL | let z;
Tweak wording and spans
2022-06-21 17:54:17 -05:00
| - binding declared here but left uninitialized
Formally implement let chains
2022-01-18 16:38:17 -06:00
LL | true && { z = 3; true} && z == 3;
Review comments: wording
2022-06-22 13:04:36 -05:00
| ----- ^ `z` used here but it is possibly-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 13:57:45 -05:00
| |
| binding initialized here in some conditions
Formally implement let chains
2022-01-18 16:38:17 -06:00
Review comments: wording
2022-06-22 13:04:36 -05:00
error[E0381]: used binding `z` is possibly-uninitialized
Formally implement let chains
2022-01-18 16:38:17 -06:00
--> $DIR/chains-without-let.rs:15:36
|
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 13:57:45 -05:00
LL | let z;
Tweak wording and spans
2022-06-21 17:54:17 -05:00
| - binding declared here but left uninitialized
Formally implement let chains
2022-01-18 16:38:17 -06:00
LL | if false || { z = 3; false} || z == 3 {}
Review comments: wording
2022-06-22 13:04:36 -05:00
| ----- ^ `z` used here but it is possibly-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 13:57:45 -05:00
| |
| binding initialized here in some conditions
Formally implement let chains
2022-01-18 16:38:17 -06:00
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0381`.
Reference in New Issue Copy Permalink