error[E0271]: expected `from_utf8_lossy` to return `String`, but it returns `Cow<'_, str>`
--> tests/ui/bad_parse_with_map.rs:5:60
|
3 | #[derive(BinRead)]
| ------- required by a bound introduced by this call
4 | struct Foo {
5 | #[br(parse_with = until_eof::<_, _, _, Vec<u8>>, map = String::from_utf8_lossy)]
| ^^^^^^^^^^^^^^^^^^^^^^^ expected `String`, found `Cow<'_, str>`
|
= note: expected struct `String`
found enum `Cow<'_, str>`
note: required by a bound in `coerce_fn`
--> src/private.rs
|
| pub fn coerce_fn<R, T, F>(f: F) -> F
| --------- required by a bound in this function
| where
| F: FnMut(T) -> R,
| ^ required by this bound in `coerce_fn`
error[E0308]: `?` operator has incompatible types
--> tests/ui/bad_parse_with_map.rs:5:23
|
5 | #[br(parse_with = until_eof::<_, _, _, Vec<u8>>, map = String::from_utf8_lossy)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&[u8]`, found `Vec<u8>`
|
= note: `?` operator cannot convert from `Vec<u8>` to `&[u8]`
= note: expected reference `&[u8]`
found struct `Vec<u8>`
note: return type inferred to be `&[u8]` here
--> tests/ui/bad_parse_with_map.rs:5:23
|
5 | #[br(parse_with = until_eof::<_, _, _, Vec<u8>>, map = String::from_utf8_lossy)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: consider borrowing here
|
5 | #[br(parse_with = &until_eof::<_, _, _, Vec<u8>>, map = String::from_utf8_lossy)]
| +
error[E0308]: mismatched types
--> tests/ui/bad_parse_with_map.rs:5:60
|
5 | #[br(parse_with = until_eof::<_, _, _, Vec<u8>>, map = String::from_utf8_lossy)]
| ____________________________________________________________^
6 | | a: String,
| | ^ ------ expected due to this
| |_____|
| expected `String`, found `Cow<'_, str>`
|
= note: expected struct `String`
found enum `Cow<'_, str>`
help: try using a conversion method
|
6 | a.to_string(): String,
| ++++++++++++