Private field can cause confusion with identically named field on a deref target #149546
Description
Code
mod structs { pub struct A { // this is the field we want but cant get as its not pub field: usize, b: B, } pub struct B { // this field is unfortunatly named the same but is pub pub field: bool, } impl std::ops::Deref for A { type Target = B; fn deref(&self) -> &Self::Target { &self.b } } } use structs::A; fn try_to_use_field_in_a(a: A) { // getting: cannot add {integer} to bool // would ideally be informed A::field is not public a.field + 5; } fn main() {}Current output
error[E0369]: cannot add `{integer}` to `bool` --> src/main.rs:26:13 | 26 | a.field + 5; | ------- ^ - {integer} | | | bool For more information about this error, try `rustc --explain E0369`. error: could not compile `playground` (bin "playground") due to 1 previous errorDesired output
error[E0369]: cannot add `{integer}` to `bool` --> src/main.rs:26:13 | 26 | a.field + 5; | ------- ^ - {integer} | | | bool Note: There is an identically named field on A we ignore since its not public or even: error[E0616]: field `field` of struct `A` is private --> src/main.rs:26:7 | 26 | a.field + 5; | ^^^^^ private field Note: There is a identically named field on B and A derefs into B however this field has a different typeRationale and extra context
No response
Other cases
Rust Version
rustc 1.91.1 (ed61e7d7e 2025-11-07) binary: rustc commit-hash: ed61e7d7e242494fb7057f2657300d9e77bb4fcb commit-date: 2025-11-07 host: x86_64-unknown-linux-gnu release: 1.91.1 LLVM version: 21.1.2Anything else?
Happy to work on this over Christmas.