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std: Revert addition of into_ascii_* methods - #32314
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The addition of these methods in rust-lang#31335 required adding impls of the trait for the `String` and `Vec<T>` types. This unfortunately caused a regression (rust-lang#32074) in type inference for using these methods which the libs team has decided to not push forward with. These methods were stabilized in rust-lang#32020 which was intended to get backported to beta, but the backport hasn't happened just yet. This commit reverts both the addition and stabilization of these methods. One proposed method of handling this, in rust-lang#32076, was to move the methods to an extra trait to avoid conflicts with type inference. After some discussion, however, the libs team concluded that we probably want to reevaluate what we're doing here, so discussion will continue on the tracking issue, rust-lang#27809.
rust-highfive
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Mar 17, 2016
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r? @brson (rust_highfive has picked a reviewer for you, use r? to override) |
alexcrichton
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Mar 17, 2016
MemberAuthor
Nominating for beta inclusion as well to fix the inference regression caused by using the stable methods. |
alexcrichton
commented
Mar 17, 2016
MemberAuthor
r? @aturon |
aturon
commented
Mar 18, 2016
Contributor
Can you run crater on this change? I see some hits on github code search... |
alexcrichton
commented
Mar 18, 2016
MemberAuthor
Crater reports one regression which seems to be spurious? |
aturon
commented
Mar 18, 2016
Contributor
@bors: r+ |
bors
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Mar 18, 2016
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📌 Commit af65d81 has been approved by |
eddyb
commented
Mar 19, 2016
Contributor
@alexcrichton Would it make sense to have a regression test for #32074? |
bors
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Mar 19, 2016
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Mar 19, 2016
std: Revert addition of `into_ascii_*` methods The addition of these methods in #31335 required adding impls of the trait for the `String` and `Vec<T>` types. This unfortunately caused a regression (#32074) in type inference for using these methods which the libs team has decided to not push forward with. These methods were stabilized in #32020 which was intended to get backported to beta, but the backport hasn't happened just yet. This commit reverts both the addition and stabilization of these methods. One proposed method of handling this, in #32076, was to move the methods to an extra trait to avoid conflicts with type inference. After some discussion, however, the libs team concluded that we probably want to reevaluate what we're doing here, so discussion will continue on the tracking issue, #27809. Closes#32074
alexcrichton
commented
Mar 19, 2016
MemberAuthor
@eddyb good point, I'll add that if this bounces or in another PR if it lands |
bors
commented
Mar 19, 2016
Collaborator
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The addition of these methods in #31335 required adding impls of the trait for
the
StringandVec<T>types. This unfortunately caused a regression (#32074)in type inference for using these methods which the libs team has decided to not
push forward with. These methods were stabilized in #32020 which was intended to
get backported to beta, but the backport hasn't happened just yet. This commit
reverts both the addition and stabilization of these methods.
One proposed method of handling this, in #32076, was to move the methods to an
extra trait to avoid conflicts with type inference. After some discussion,
however, the libs team concluded that we probably want to reevaluate what we're
doing here, so discussion will continue on the tracking issue, #27809.
Closes#32074