1d68317401
Add `#[track_caller]` to the "From implies Into" impl This pr implements what was mentioned in https://github.com/rust-lang/rust/issues/77474#issuecomment-1074480790 This follows from my URLO https://users.rust-lang.org/t/104497 ```rust #![allow(warnings)] fn main() { // Gives a good location let _: Result<(), Loc> = dbg!(Err::<(), _>(()).map_err(|e| e.into())); // still doesn't work, gives location of `FnOnce::call_once()` let _: Result<(), Loc> = dbg!(Err::<(), _>(()).map_err(Into::into)); } #[derive(Debug)] pub struct Loc { pub l: &'static std::panic::Location<'static>, } impl From<()> for Loc { #[track_caller] fn from(_: ()) -> Self { Loc { l: std::panic::Location::caller(), } } } ``` |
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rust-analyzer is a modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust.
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