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authorMichael Goulet <michael@errs.io>2024-05-03 23:34:22 -0400
committerGitHub <noreply@github.com>2024-05-03 23:34:22 -0400
commit9dfd527c6f5d58703d30218579581d6f5a278c90 (patch)
tree14edd5e1d134f941c6b72e1abe722391ccdda0eb /compiler/rustc_feature/src
parente3bf0a13cfde765ae572a3f7ec616149d2e0b957 (diff)
parentcde0cde151f30e07170d0f3caa721c92bebd7afe (diff)
downloadrust-9dfd527c6f5d58703d30218579581d6f5a278c90.tar.gz
rust-9dfd527c6f5d58703d30218579581d6f5a278c90.zip
Rollup merge of #124480 - Enselic:on-broken-pipe, r=jieyouxu
Change `SIGPIPE` ui from `#[unix_sigpipe = "..."]` to `-Zon-broken-pipe=...`

In the stabilization [attempt](https://github.com/rust-lang/rust/pull/120832) of `#[unix_sigpipe = "sig_dfl"]`, a concern was [raised ](https://github.com/rust-lang/rust/pull/120832#issuecomment-2007394609) related to using a language attribute for the feature: Long term, we want `fn lang_start()` to be definable by any crate, not just libstd. Having a special language attribute in that case becomes awkward.

So as a first step towards the next stabilization attempt, this PR changes the `#[unix_sigpipe = "..."]` attribute to a compiler flag `-Zon-broken-pipe=...` to remove that concern, since now the language is not "contaminated" by this feature.

Another point was [also raised](https://github.com/rust-lang/rust/pull/120832#issuecomment-1987023484), namely that the ui should not leak **how** it does things, but rather what the **end effect** is. The new flag uses the proposed naming. This is of course something that can be iterated on further before stabilization.

Tracking issue: https://github.com/rust-lang/rust/issues/97889
Diffstat (limited to 'compiler/rustc_feature/src')
-rw-r--r--compiler/rustc_feature/src/builtin_attrs.rs4
-rw-r--r--compiler/rustc_feature/src/unstable.rs2
2 files changed, 0 insertions, 6 deletions
diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs
index 9d3aac66c41..9c33cc8ed0b 100644
--- a/compiler/rustc_feature/src/builtin_attrs.rs
+++ b/compiler/rustc_feature/src/builtin_attrs.rs
@@ -396,10 +396,6 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
     ),
 
     // Entry point:
-    gated!(
-        unix_sigpipe, Normal, template!(NameValueStr: "inherit|sig_ign|sig_dfl"), ErrorFollowing,
-        EncodeCrossCrate::Yes, experimental!(unix_sigpipe)
-    ),
     ungated!(start, Normal, template!(Word), WarnFollowing, EncodeCrossCrate::No),
     ungated!(no_start, CrateLevel, template!(Word), WarnFollowing, EncodeCrossCrate::No),
     ungated!(no_main, CrateLevel, template!(Word), WarnFollowing, EncodeCrossCrate::No),
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index e7d7a9f380b..fe50499db76 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -619,8 +619,6 @@ declare_features! (
     /// Allows creation of instances of a struct by moving fields that have
     /// not changed from prior instances of the same struct (RFC #2528)
     (unstable, type_changing_struct_update, "1.58.0", Some(86555)),
-    /// Enables rustc to generate code that instructs libstd to NOT ignore SIGPIPE.
-    (unstable, unix_sigpipe, "1.65.0", Some(97889)),
     /// Allows unnamed fields of struct and union type
     (incomplete, unnamed_fields, "1.74.0", Some(49804)),
     /// Allows unsized fn parameters.