Cherry-picking beta-nominated in to beta #24708
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…ies. Note: this Warns rather than error on shadowing problems involving labels. We took this more conservative option mostly due to issues with hygiene being broken for labels and/or lifetimes. Add FIXME regarding non-hygienic comparison.
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r? @Aatch (rust_highfive has picked a reviewer for you, use r? to override) |
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r? @brson |
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(And I'll be doing one for documentation stuff later today) |
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#24420 only adds unstable API's and has been beta-rejected. |
…y checks. This avoids various ICEs, e.g. premature calls to cat_expr that yield the dreaded "cat_expr Errd" ICE.
This is an implementation of [RFC 1030][rfc] which adds these traits to the prelude and additionally removes all inherent `into_iter` methods on collections in favor of the trait implementation (which is now accessible by default). [rfc]: rust-lang/rfcs#1030 This is technically a breaking change due to the prelude additions and removal of inherent methods, but it is expected that essentially no code breaks in practice. [breaking-change] Closes rust-lang#24538
Words struct was stabilied by mistake. Unstabilize.
Cleaning out more deprecated items Conflicts: src/libcore/result.rs
This commit removes all the old casting/generic traits from `std::num` that are no longer in use by the standard library. This additionally removes the old `strconv` module which has not seen much use in quite a long time. All generic functionality has been supplanted with traits in the `num` crate and the `strconv` module is supplanted with the [rust-strconv crate][rust-strconv]. [rust-strconv]: https://github.com/lifthrasiir/rust-strconv This is a breaking change due to the removal of these deprecated crates, and the alternative crates are listed above. [breaking-change] Conflicts: src/libstd/num/strconv.rs
This API was exercised in a few tests and mirrors the `from_str_radix` functionality of the integer types. Conflicts: src/doc/trpl/traits.md src/libstd/sys/windows/fs2.rs
Conflicts: src/librustc_data_structures/lib.rs
Conflicts: src/test/run-pass/task-stderr.rs
This allows `io::Error` values to be stored in `Arc` properly. Because this requires `Sync` of any value passed to `io::Error::new()` and modifies the relevant `convert::From` impls, this is a [breaking-change] Fixes rust-lang#24049.
which get mentioned in an associated type are constrained. Arguably we should just require that all regions are constrained, but that is more of a breaking change. Conflicts: src/librustc_typeck/collect.rs
multiple kinds of parameters (regions and types, specifically) Conflicts: src/librustc_typeck/collect.rs
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This was referenced Apr 29, 2015
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alexcrichton
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Debug overflow checks for arithmetic negation landed in rust-lang#24500, at which time the `abs` method on signed integers was changed to using `wrapping_neg` to ensure that the function never panicked. This implied that `abs` of `INT_MIN` would return `INT_MIN`, another negative value. When this change was back-ported to beta, however, in rust-lang#24708, the `wrapping_neg` function had not yet been backported, so the implementation was changed in rust-lang#24785 to `!self + 1`. This change had the unintended side effect of enabling debug overflow checks for the `abs` function. Consequently, the current state of affairs is that the beta branch checks for overflow in debug mode for `abs` and the nightly branch does not. This commit alters the behavior of nightly to have `abs` always check for overflow in debug mode. This change is more consistent with the way the standard library treats overflow as well, and it is also not a breaking change as it's what the beta branch currently does (albeit if by accident). cc rust-lang#25378
alexcrichton
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Debug overflow checks for arithmetic negation landed in rust-lang#24500, at which time the `abs` method on signed integers was changed to using `wrapping_neg` to ensure that the function never panicked. This implied that `abs` of `INT_MIN` would return `INT_MIN`, another negative value. When this change was back-ported to beta, however, in rust-lang#24708, the `wrapping_neg` function had not yet been backported, so the implementation was changed in rust-lang#24785 to `!self + 1`. This change had the unintended side effect of enabling debug overflow checks for the `abs` function. Consequently, the current state of affairs is that the beta branch checks for overflow in debug mode for `abs` and the nightly branch does not. This commit alters the behavior of nightly to have `abs` always check for overflow in debug mode. This change is more consistent with the way the standard library treats overflow as well, and it is also not a breaking change as it's what the beta branch currently does (albeit if by accident). cc rust-lang#25378
bors
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May 19, 2015
Debug overflow checks for arithmetic negation landed in #24500, at which time the `abs` method on signed integers was changed to using `wrapping_neg` to ensure that the function never panicked. This implied that `abs` of `INT_MIN` would return `INT_MIN`, another negative value. When this change was back-ported to beta, however, in #24708, the `wrapping_neg` function had not yet been backported, so the implementation was changed in #24785 to `!self + 1`. This change had the unintended side effect of enabling debug overflow checks for the `abs` function. Consequently, the current state of affairs is that the beta branch checks for overflow in debug mode for `abs` and the nightly branch does not. This commit alters the behavior of nightly to have `abs` always check for overflow in debug mode. This change is more consistent with the way the standard library treats overflow as well, and it is also not a breaking change as it's what the beta branch currently does (albeit if by accident). cc #25378
alexcrichton
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Debug overflow checks for arithmetic negation landed in rust-lang#24500, at which time the `abs` method on signed integers was changed to using `wrapping_neg` to ensure that the function never panicked. This implied that `abs` of `INT_MIN` would return `INT_MIN`, another negative value. When this change was back-ported to beta, however, in rust-lang#24708, the `wrapping_neg` function had not yet been backported, so the implementation was changed in rust-lang#24785 to `!self + 1`. This change had the unintended side effect of enabling debug overflow checks for the `abs` function. Consequently, the current state of affairs is that the beta branch checks for overflow in debug mode for `abs` and the nightly branch does not. This commit alters the behavior of nightly to have `abs` always check for overflow in debug mode. This change is more consistent with the way the standard library treats overflow as well, and it is also not a breaking change as it's what the beta branch currently does (albeit if by accident). cc rust-lang#25378
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This PR is a cherry-pick of all beta-nominated commits into the beta branch. This should not be r+'d due to the beta automation currently having to go through a separate path. This should also not be merged until we have discussed this set of PRs at the triage meeting tomorrow.
PRs cherry-picked:
Syncto the bounds inio::Error#24133