rust/src/libstd/error.rs, branch 1.26.0

Revert "Stabilize the TryFrom and TryInto traits"

2018-04-22T00:06:50+00:00

This reverts commit e53a2a72743810e05f58c61c9d8a4c89b712ad2e.

Revert stabilization of `feature(never_type)`.

2018-04-22T00:05:10+00:00

This commit is just covering the feature gate itself and the tests that made direct use of `!` and thus need to opt back into the feature. A follow on commit brings back the other change that motivates the revert: Namely, going back to the old rules for falling back to `()`.

Stabilize the TryFrom and TryInto traits

2018-03-26T21:36:02+00:00

Tracking issue: https://github.com/rust-lang/rust/issues/33417

replace `convert::Infallible` with `!`

2018-03-15T04:35:56+00:00

change never_type stabilisation version

2018-03-14T04:44:51+00:00

Fix version number

2018-03-14T04:44:51+00:00

stabilise feature(never_type)

2018-03-14T04:44:51+00:00

Replace feature(never_type) with feature(exhaustive_patterns). feature(exhaustive_patterns) only covers the pattern-exhaustives checks that used to be covered by feature(never_type)

Rename never_type_impls gate to never_type

2017-12-12T06:03:03+00:00

Merge remote-tracking branch 'upstream/master'

2017-09-30T14:08:33+00:00

Auto merge of #44174 - jimmycuadra:try-from-infallible, r=sfackler

2017-09-29T22:35:23+00:00

Add blanket TryFrom impl when From is implemented. Adds `impl TryFrom for U where U: From`. Removes `impl<'a, T> TryFrom<&'a str> for T where T: FromStr` (originally added in #40281) due to overlapping impls caused by the new blanket impl. This removal is to be discussed further on the tracking issue for TryFrom. Refs #33417. /cc @sfackler, @scottmcm (thank you for the help!), and @aturon