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error[E0606]: casting `&'static str` as `bool` is invalid
--> $DIR/issue-106883-is-empty.rs:14:13
|
LL | let _ = "foo" as bool;
| ^^^^^^^^^^^^^
|
help: consider using the `is_empty` method on `&'static str` to determine if it contains anything
|
LL | let _ = !"foo".is_empty();
| + ~~~~~~~~~~~
error[E0605]: non-primitive cast: `String` as `bool`
--> $DIR/issue-106883-is-empty.rs:17:13
|
LL | let _ = String::from("foo") as bool;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
|
note: this expression `Deref`s to `str` which implements `is_empty`
--> $DIR/issue-106883-is-empty.rs:17:13
|
LL | let _ = String::from("foo") as bool;
| ^^^^^^^^^^^^^^^^^^^
help: consider using the `is_empty` method on `String` to determine if it contains anything
|
LL | let _ = !String::from("foo").is_empty();
| + ~~~~~~~~~~~
error[E0605]: non-primitive cast: `Foo` as `bool`
--> $DIR/issue-106883-is-empty.rs:20:13
|
LL | let _ = Foo as bool;
| ^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
|
note: this expression `Deref`s to `[u8]` which implements `is_empty`
--> $DIR/issue-106883-is-empty.rs:20:13
|
LL | let _ = Foo as bool;
| ^^^
help: consider using the `is_empty` method on `Foo` to determine if it contains anything
|
LL | let _ = !Foo.is_empty();
| + ~~~~~~~~~~~
error[E0606]: casting `&[i32]` as `bool` is invalid
--> $DIR/issue-106883-is-empty.rs:25:5
|
LL | bar as bool
| ^^^^^^^^^^^
|
help: consider using the `is_empty` method on `&[i32]` to determine if it contains anything
|
LL | !bar.is_empty()
| + ~~~~~~~~~~~
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0605, E0606.
For more information about an error, try `rustc --explain E0605`.
|
