rust/src/libcore/panic.rs, branch try

mv std libs to library/

2020-07-28T00:51:13+00:00

Auto merge of #73583 - anp:location-eq, r=dtolnay

2020-07-27T22:38:25+00:00

Derive common traits for panic::Location. Now that `#[track_caller]` is on track to stabilize, one of the roughest edges of working with it is the fact that you can't do much with `Location` except turn it back into a `(&str, u32, u32)`. Which makes sense because the type was defined around the panic machinery originally passing around that tuple (it has the same layout as Location even). This PR derives common traits for the type in accordance with the [API guidelines](https://rust-lang.github.io/api-guidelines/interoperability.html#types-eagerly-implement-common-traits-c-common-traits) (those apply to core, right?). There's a risk here, e.g. if we ever change the representation of `Location` in a way that makes it harder to implement `Ord`, we might not be able to make that change in a backwards-compatible way. I don't think there's any other compatibility hazard here, as the only changes we currently imagine for the type are to add end fields. cc @rust-lang/libs

Clarify core::panic::Location's docs on ordering.

2020-07-19T18:36:24+00:00

Co-authored-by: Simon Sapin

Stabilize `#[track_caller]`.

2020-07-01T05:22:32+00:00

Does not yet make its constness stable, though. Use of `Location::caller` in const contexts is still gated by `#![feature(const_caller_location)]`.

Derive common traits for panic::Location.

2020-06-30T03:58:19+00:00

Add documentation about the host/target behavior of Location::file.

Join mutiple lines if it is more readable

2020-06-15T13:15:47+00:00

document stable counterparts of intrinsics

2020-04-29T13:50:21+00:00

Improve PanicInfo examples readability

2020-04-24T07:46:38+00:00

Format the world

2019-12-22T22:42:47+00:00

Require issue = "none" over issue = "0" in unstable attributes

2019-12-21T11:16:18+00:00