Rollup merge of #48801 - Manishearth:epoch-features, r=nikomatsakis
Add functionality for gating feature flags on epochs ; rejigger epoch lints fixes #48794 r? @nikomatsakis
This commit is contained in:
Manish Goregaokar
GitHub
commit
68e7282aa8
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@ -17,7 +17,6 @@
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use errors::DiagnosticBuilder;
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use lint::{LintPass, LateLintPass, LintArray};
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use session::Session;
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use session::config::Epoch;
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use syntax::codemap::Span;
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declare_lint! {
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@ -264,9 +263,8 @@ declare_lint! {
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declare_lint! {
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pub BARE_TRAIT_OBJECT,
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Warn,
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"suggest using `dyn Trait` for trait objects",
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Epoch::Epoch2018
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Allow,
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"suggest using `dyn Trait` for trait objects"
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}
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declare_lint! {
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@ -42,6 +42,7 @@ use util::nodemap::FxHashMap;
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use std::default::Default as StdDefault;
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use std::cell::{Ref, RefCell};
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use syntax::ast;
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use syntax::epoch;
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use syntax_pos::{MultiSpan, Span};
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use errors::DiagnosticBuilder;
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use hir;
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@ -105,7 +106,7 @@ pub struct FutureIncompatibleInfo {
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pub reference: &'static str,
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/// If this is an epoch fixing lint, the epoch in which
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/// this lint becomes obsolete
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pub epoch: Option<config::Epoch>,
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pub epoch: Option<epoch::Epoch>,
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}
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/// The target of the `by_name` map, which accounts for renaming/deprecation.
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@ -201,7 +202,7 @@ impl LintStore {
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sess: Option<&Session>,
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lints: Vec<FutureIncompatibleInfo>) {
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for epoch in config::ALL_EPOCHS {
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for epoch in epoch::ALL_EPOCHS {
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let lints = lints.iter().filter(|f| f.epoch == Some(*epoch)).map(|f| f.id)
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.collect::<Vec<_>>();
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if !lints.is_empty() {
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@ -38,10 +38,11 @@ use hir::def_id::{CrateNum, LOCAL_CRATE};
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use hir::intravisit::{self, FnKind};
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use hir;
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use lint::builtin::BuiltinLintDiagnostics;
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use session::{config, Session, DiagnosticMessageId};
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use session::{Session, DiagnosticMessageId};
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use std::hash;
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use syntax::ast;
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use syntax::codemap::MultiSpan;
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use syntax::epoch::Epoch;
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use syntax::symbol::Symbol;
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use syntax::visit as ast_visit;
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use syntax_pos::Span;
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@ -77,7 +78,7 @@ pub struct Lint {
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pub desc: &'static str,
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/// Deny lint after this epoch
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pub epoch_deny: Option<config::Epoch>,
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pub epoch_deny: Option<Epoch>,
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}
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impl Lint {
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@ -492,9 +493,14 @@ pub fn struct_lint_level<'a>(sess: &'a Session,
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// Check for future incompatibility lints and issue a stronger warning.
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let lints = sess.lint_store.borrow();
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if let Some(future_incompatible) = lints.future_incompatible(LintId::of(lint)) {
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let future = if let Some(epoch) = future_incompatible.epoch {
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format!("the {} epoch", epoch)
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} else {
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"a future release".to_owned()
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};
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let explanation = format!("this was previously accepted by the compiler \
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but is being phased out; \
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it will become a hard error in a future release!");
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it will become a hard error in {}!", future);
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let citation = format!("for more information, see {}",
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future_incompatible.reference);
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err.warn(&explanation);
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@ -28,6 +28,7 @@ use middle::cstore;
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use syntax::ast::{self, IntTy, UintTy};
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use syntax::codemap::{FileName, FilePathMapping};
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use syntax::epoch::Epoch;
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use syntax::parse::token;
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use syntax::parse;
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use syntax::symbol::Symbol;
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@ -111,59 +112,6 @@ pub enum OutputType {
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DepInfo,
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}
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/// The epoch of the compiler (RFC 2052)
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#[derive(Clone, Copy, Hash, PartialOrd, Ord, Eq, PartialEq, Debug)]
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#[non_exhaustive]
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pub enum Epoch {
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// epochs must be kept in order, newest to oldest
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/// The 2015 epoch
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Epoch2015,
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/// The 2018 epoch
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Epoch2018,
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// when adding new epochs, be sure to update:
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//
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// - the list in the `parse_epoch` static
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// - the match in the `parse_epoch` function
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// - add a `rust_####()` function to the session
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// - update the enum in Cargo's sources as well
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//
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// When -Zepoch becomes --epoch, there will
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// also be a check for the epoch being nightly-only
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// somewhere. That will need to be updated
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// whenever we're stabilizing/introducing a new epoch
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// as well as changing the default Cargo template.
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}
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pub const ALL_EPOCHS: &[Epoch] = &[Epoch::Epoch2015, Epoch::Epoch2018];
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impl ToString for Epoch {
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fn to_string(&self) -> String {
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match *self {
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Epoch::Epoch2015 => "2015".into(),
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Epoch::Epoch2018 => "2018".into(),
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}
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}
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}
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impl Epoch {
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pub fn lint_name(&self) -> &'static str {
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match *self {
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Epoch::Epoch2015 => "epoch_2015",
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Epoch::Epoch2018 => "epoch_2018",
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}
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}
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}
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impl str::FromStr for Epoch {
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type Err = ();
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fn from_str(s: &str) -> Result<Self, ()> {
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match s {
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"2015" => Ok(Epoch::Epoch2015),
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"2018" => Ok(Epoch::Epoch2018),
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_ => Err(()),
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}
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}
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}
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impl_stable_hash_for!(enum self::OutputType {
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Bitcode,
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@ -829,9 +777,10 @@ macro_rules! options {
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#[allow(dead_code)]
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mod $mod_set {
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use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer, Lto, Epoch};
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use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer, Lto};
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use rustc_back::{LinkerFlavor, PanicStrategy, RelroLevel};
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use std::path::PathBuf;
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use syntax::epoch::Epoch;
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$(
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pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool {
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@ -20,7 +20,7 @@ use lint::builtin::BuiltinLintDiagnostics;
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use middle::allocator::AllocatorKind;
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use middle::dependency_format;
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use session::search_paths::PathKind;
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use session::config::{DebugInfoLevel, Epoch, OutputType};
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use session::config::{DebugInfoLevel, OutputType};
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use ty::tls;
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use util::nodemap::{FxHashMap, FxHashSet};
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use util::common::{duration_to_secs_str, ErrorReported};
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@ -30,6 +30,7 @@ use rustc_data_structures::sync::Lrc;
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use syntax::ast::NodeId;
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use errors::{self, DiagnosticBuilder, DiagnosticId};
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use errors::emitter::{Emitter, EmitterWriter};
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use syntax::epoch::Epoch;
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use syntax::json::JsonEmitter;
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use syntax::feature_gate;
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use syntax::symbol::Symbol;
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@ -647,7 +647,9 @@ pub fn phase_2_configure_and_expand_inner<'a, F>(sess: &'a Session,
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{
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let time_passes = sess.time_passes();
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let (mut krate, features) = syntax::config::features(krate, &sess.parse_sess, sess.opts.test);
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let (mut krate, features) = syntax::config::features(krate, &sess.parse_sess,
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sess.opts.test,
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sess.opts.debugging_opts.epoch);
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// these need to be set "early" so that expansion sees `quote` if enabled.
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sess.init_features(features);
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@ -1263,7 +1263,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnionsWithDropFields {
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pub struct UnreachablePub;
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declare_lint! {
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UNREACHABLE_PUB,
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pub UNREACHABLE_PUB,
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Allow,
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"`pub` items not reachable from crate root"
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}
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@ -43,10 +43,12 @@ extern crate rustc_mir;
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extern crate syntax_pos;
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use rustc::lint;
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use rustc::lint::builtin::BARE_TRAIT_OBJECT;
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use rustc::session;
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use rustc::util;
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use session::Session;
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use syntax::epoch::Epoch;
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use lint::LintId;
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use lint::FutureIncompatibleInfo;
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@ -176,6 +178,11 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
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UNUSED_FEATURES,
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UNUSED_PARENS);
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add_lint_group!(sess,
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"rust_2018_idioms",
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BARE_TRAIT_OBJECT,
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UNREACHABLE_PUB);
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// Guidelines for creating a future incompatibility lint:
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//
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// - Create a lint defaulting to warn as normal, with ideally the same error
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@ -274,13 +281,8 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
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FutureIncompatibleInfo {
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id: LintId::of(TYVAR_BEHIND_RAW_POINTER),
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reference: "issue #46906 <https://github.com/rust-lang/rust/issues/46906>",
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epoch: None,
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},
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FutureIncompatibleInfo {
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id: LintId::of(lint::builtin::BARE_TRAIT_OBJECT),
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reference: "issue #48457 <https://github.com/rust-lang/rust/issues/48457>",
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epoch: Some(session::config::Epoch::Epoch2018),
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}
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epoch: Some(Epoch::Epoch2018),
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}
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]);
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// Register renamed and removed lints
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@ -13,6 +13,7 @@ use feature_gate::{feature_err, EXPLAIN_STMT_ATTR_SYNTAX, Features, get_features
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use {fold, attr};
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use ast;
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use codemap::Spanned;
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use epoch::Epoch;
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use parse::{token, ParseSess};
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use ptr::P;
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@ -26,7 +27,7 @@ pub struct StripUnconfigured<'a> {
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}
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// `cfg_attr`-process the crate's attributes and compute the crate's features.
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pub fn features(mut krate: ast::Crate, sess: &ParseSess, should_test: bool)
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pub fn features(mut krate: ast::Crate, sess: &ParseSess, should_test: bool, epoch: Epoch)
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-> (ast::Crate, Features) {
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let features;
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{
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@ -46,7 +47,7 @@ pub fn features(mut krate: ast::Crate, sess: &ParseSess, should_test: bool)
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return (krate, Features::new());
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}
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features = get_features(&sess.span_diagnostic, &krate.attrs);
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features = get_features(&sess.span_diagnostic, &krate.attrs, epoch);
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// Avoid reconfiguring malformed `cfg_attr`s
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if err_count == sess.span_diagnostic.err_count() {
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@ -0,0 +1,69 @@
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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::fmt;
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use std::str::FromStr;
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/// The epoch of the compiler (RFC 2052)
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#[derive(Clone, Copy, Hash, PartialOrd, Ord, Eq, PartialEq, Debug)]
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#[non_exhaustive]
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pub enum Epoch {
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// epochs must be kept in order, newest to oldest
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|
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/// The 2015 epoch
|
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Epoch2015,
|
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/// The 2018 epoch
|
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Epoch2018,
|
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|
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// when adding new epochs, be sure to update:
|
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//
|
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// - the list in the `parse_epoch` static in librustc::session::config
|
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// - add a `rust_####()` function to the session
|
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// - update the enum in Cargo's sources as well
|
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//
|
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// When -Zepoch becomes --epoch, there will
|
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// also be a check for the epoch being nightly-only
|
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// somewhere. That will need to be updated
|
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// whenever we're stabilizing/introducing a new epoch
|
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// as well as changing the default Cargo template.
|
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}
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|
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// must be in order from oldest to newest
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pub const ALL_EPOCHS: &[Epoch] = &[Epoch::Epoch2015, Epoch::Epoch2018];
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impl fmt::Display for Epoch {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let s = match *self {
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Epoch::Epoch2015 => "2015",
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Epoch::Epoch2018 => "2018",
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};
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write!(f, "{}", s)
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}
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}
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impl Epoch {
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pub fn lint_name(&self) -> &'static str {
|
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match *self {
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Epoch::Epoch2015 => "epoch_2015",
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Epoch::Epoch2018 => "epoch_2018",
|
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}
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}
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}
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impl FromStr for Epoch {
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type Err = ();
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fn from_str(s: &str) -> Result<Self, ()> {
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match s {
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"2015" => Ok(Epoch::Epoch2015),
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"2018" => Ok(Epoch::Epoch2018),
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_ => Err(())
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}
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}
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}
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|
|
@ -28,8 +28,9 @@ use self::AttributeGate::*;
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use abi::Abi;
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use ast::{self, NodeId, PatKind, RangeEnd, RangeSyntax};
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use attr;
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use epoch::Epoch;
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use codemap::Spanned;
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use syntax_pos::Span;
|
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use syntax_pos::{Span, DUMMY_SP};
|
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use errors::{DiagnosticBuilder, Handler, FatalError};
|
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use visit::{self, FnKind, Visitor};
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use parse::ParseSess;
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|
|
@ -54,12 +55,13 @@ macro_rules! set {
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}
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|
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macro_rules! declare_features {
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($((active, $feature: ident, $ver: expr, $issue: expr),)+) => {
|
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($((active, $feature: ident, $ver: expr, $issue: expr, $epoch: expr),)+) => {
|
||||
/// Represents active features that are currently being implemented or
|
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/// currently being considered for addition/removal.
|
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const ACTIVE_FEATURES:
|
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&'static [(&'static str, &'static str, Option<u32>, fn(&mut Features, Span))] =
|
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&[$((stringify!($feature), $ver, $issue, set!($feature))),+];
|
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&'static [(&'static str, &'static str, Option<u32>,
|
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Option<Epoch>, fn(&mut Features, Span))] =
|
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&[$((stringify!($feature), $ver, $issue, $epoch, set!($feature))),+];
|
||||
|
||||
/// A set of features to be used by later passes.
|
||||
#[derive(Clone)]
|
||||
|
|
@ -88,21 +90,21 @@ macro_rules! declare_features {
|
|||
}
|
||||
};
|
||||
|
||||
($((removed, $feature: ident, $ver: expr, $issue: expr),)+) => {
|
||||
($((removed, $feature: ident, $ver: expr, $issue: expr, None),)+) => {
|
||||
/// Represents unstable features which have since been removed (it was once Active)
|
||||
const REMOVED_FEATURES: &'static [(&'static str, &'static str, Option<u32>)] = &[
|
||||
$((stringify!($feature), $ver, $issue)),+
|
||||
];
|
||||
};
|
||||
|
||||
($((stable_removed, $feature: ident, $ver: expr, $issue: expr),)+) => {
|
||||
($((stable_removed, $feature: ident, $ver: expr, $issue: expr, None),)+) => {
|
||||
/// Represents stable features which have since been removed (it was once Accepted)
|
||||
const STABLE_REMOVED_FEATURES: &'static [(&'static str, &'static str, Option<u32>)] = &[
|
||||
$((stringify!($feature), $ver, $issue)),+
|
||||
];
|
||||
};
|
||||
|
||||
($((accepted, $feature: ident, $ver: expr, $issue: expr),)+) => {
|
||||
($((accepted, $feature: ident, $ver: expr, $issue: expr, None),)+) => {
|
||||
/// Those language feature has since been Accepted (it was once Active)
|
||||
const ACCEPTED_FEATURES: &'static [(&'static str, &'static str, Option<u32>)] = &[
|
||||
$((stringify!($feature), $ver, $issue)),+
|
||||
|
|
@ -122,78 +124,78 @@ macro_rules! declare_features {
|
|||
// source, so take care when modifying it.
|
||||
|
||||
declare_features! (
|
||||
(active, asm, "1.0.0", Some(29722)),
|
||||
(active, concat_idents, "1.0.0", Some(29599)),
|
||||
(active, link_args, "1.0.0", Some(29596)),
|
||||
(active, log_syntax, "1.0.0", Some(29598)),
|
||||
(active, non_ascii_idents, "1.0.0", Some(28979)),
|
||||
(active, plugin_registrar, "1.0.0", Some(29597)),
|
||||
(active, thread_local, "1.0.0", Some(29594)),
|
||||
(active, trace_macros, "1.0.0", Some(29598)),
|
||||
(active, asm, "1.0.0", Some(29722), None),
|
||||
(active, concat_idents, "1.0.0", Some(29599), None),
|
||||
(active, link_args, "1.0.0", Some(29596), None),
|
||||
(active, log_syntax, "1.0.0", Some(29598), None),
|
||||
(active, non_ascii_idents, "1.0.0", Some(28979), None),
|
||||
(active, plugin_registrar, "1.0.0", Some(29597), None),
|
||||
(active, thread_local, "1.0.0", Some(29594), None),
|
||||
(active, trace_macros, "1.0.0", Some(29598), None),
|
||||
|
||||
// rustc internal, for now:
|
||||
(active, intrinsics, "1.0.0", None),
|
||||
(active, lang_items, "1.0.0", None),
|
||||
(active, intrinsics, "1.0.0", None, None),
|
||||
(active, lang_items, "1.0.0", None, None),
|
||||
|
||||
(active, link_llvm_intrinsics, "1.0.0", Some(29602)),
|
||||
(active, linkage, "1.0.0", Some(29603)),
|
||||
(active, quote, "1.0.0", Some(29601)),
|
||||
(active, link_llvm_intrinsics, "1.0.0", Some(29602), None),
|
||||
(active, linkage, "1.0.0", Some(29603), None),
|
||||
(active, quote, "1.0.0", Some(29601), None),
|
||||
|
||||
|
||||
// rustc internal
|
||||
(active, rustc_diagnostic_macros, "1.0.0", None),
|
||||
(active, rustc_const_unstable, "1.0.0", None),
|
||||
(active, advanced_slice_patterns, "1.0.0", Some(23121)),
|
||||
(active, box_syntax, "1.0.0", Some(27779)),
|
||||
(active, placement_in_syntax, "1.0.0", Some(27779)),
|
||||
(active, unboxed_closures, "1.0.0", Some(29625)),
|
||||
(active, rustc_diagnostic_macros, "1.0.0", None, None),
|
||||
(active, rustc_const_unstable, "1.0.0", None, None),
|
||||
(active, advanced_slice_patterns, "1.0.0", Some(23121), None),
|
||||
(active, box_syntax, "1.0.0", Some(27779), None),
|
||||
(active, placement_in_syntax, "1.0.0", Some(27779), None),
|
||||
(active, unboxed_closures, "1.0.0", Some(29625), None),
|
||||
|
||||
(active, fundamental, "1.0.0", Some(29635)),
|
||||
(active, main, "1.0.0", Some(29634)),
|
||||
(active, needs_allocator, "1.4.0", Some(27389)),
|
||||
(active, on_unimplemented, "1.0.0", Some(29628)),
|
||||
(active, plugin, "1.0.0", Some(29597)),
|
||||
(active, simd_ffi, "1.0.0", Some(27731)),
|
||||
(active, start, "1.0.0", Some(29633)),
|
||||
(active, structural_match, "1.8.0", Some(31434)),
|
||||
(active, panic_runtime, "1.10.0", Some(32837)),
|
||||
(active, needs_panic_runtime, "1.10.0", Some(32837)),
|
||||
(active, fundamental, "1.0.0", Some(29635), None),
|
||||
(active, main, "1.0.0", Some(29634), None),
|
||||
(active, needs_allocator, "1.4.0", Some(27389), None),
|
||||
(active, on_unimplemented, "1.0.0", Some(29628), None),
|
||||
(active, plugin, "1.0.0", Some(29597), None),
|
||||
(active, simd_ffi, "1.0.0", Some(27731), None),
|
||||
(active, start, "1.0.0", Some(29633), None),
|
||||
(active, structural_match, "1.8.0", Some(31434), None),
|
||||
(active, panic_runtime, "1.10.0", Some(32837), None),
|
||||
(active, needs_panic_runtime, "1.10.0", Some(32837), None),
|
||||
|
||||
// OIBIT specific features
|
||||
(active, optin_builtin_traits, "1.0.0", Some(13231)),
|
||||
(active, optin_builtin_traits, "1.0.0", Some(13231), None),
|
||||
|
||||
// macro re-export needs more discussion and stabilization
|
||||
(active, macro_reexport, "1.0.0", Some(29638)),
|
||||
(active, macro_reexport, "1.0.0", Some(29638), None),
|
||||
|
||||
// Allows use of #[staged_api]
|
||||
// rustc internal
|
||||
(active, staged_api, "1.0.0", None),
|
||||
(active, staged_api, "1.0.0", None, None),
|
||||
|
||||
// Allows using #![no_core]
|
||||
(active, no_core, "1.3.0", Some(29639)),
|
||||
(active, no_core, "1.3.0", Some(29639), None),
|
||||
|
||||
// Allows using `box` in patterns; RFC 469
|
||||
(active, box_patterns, "1.0.0", Some(29641)),
|
||||
(active, box_patterns, "1.0.0", Some(29641), None),
|
||||
|
||||
// Allows using the unsafe_destructor_blind_to_params attribute;
|
||||
// RFC 1238
|
||||
(active, dropck_parametricity, "1.3.0", Some(28498)),
|
||||
(active, dropck_parametricity, "1.3.0", Some(28498), None),
|
||||
|
||||
// Allows using the may_dangle attribute; RFC 1327
|
||||
(active, dropck_eyepatch, "1.10.0", Some(34761)),
|
||||
(active, dropck_eyepatch, "1.10.0", Some(34761), None),
|
||||
|
||||
// Allows the use of custom attributes; RFC 572
|
||||
(active, custom_attribute, "1.0.0", Some(29642)),
|
||||
(active, custom_attribute, "1.0.0", Some(29642), None),
|
||||
|
||||
// Allows the use of #[derive(Anything)] as sugar for
|
||||
// #[derive_Anything].
|
||||
(active, custom_derive, "1.0.0", Some(29644)),
|
||||
(active, custom_derive, "1.0.0", Some(29644), None),
|
||||
|
||||
// Allows the use of rustc_* attributes; RFC 572
|
||||
(active, rustc_attrs, "1.0.0", Some(29642)),
|
||||
(active, rustc_attrs, "1.0.0", Some(29642), None),
|
||||
|
||||
// Allows the use of non lexical lifetimes; RFC 2094
|
||||
(active, nll, "1.0.0", Some(43234)),
|
||||
(active, nll, "1.0.0", Some(43234), None),
|
||||
|
||||
// Allows the use of #[allow_internal_unstable]. This is an
|
||||
// attribute on macro_rules! and can't use the attribute handling
|
||||
|
|
@ -201,7 +203,7 @@ declare_features! (
|
|||
// macros disappear).
|
||||
//
|
||||
// rustc internal
|
||||
(active, allow_internal_unstable, "1.0.0", None),
|
||||
(active, allow_internal_unstable, "1.0.0", None, None),
|
||||
|
||||
// Allows the use of #[allow_internal_unsafe]. This is an
|
||||
// attribute on macro_rules! and can't use the attribute handling
|
||||
|
|
@ -209,349 +211,349 @@ declare_features! (
|
|||
// macros disappear).
|
||||
//
|
||||
// rustc internal
|
||||
(active, allow_internal_unsafe, "1.0.0", None),
|
||||
(active, allow_internal_unsafe, "1.0.0", None, None),
|
||||
|
||||
// #23121. Array patterns have some hazards yet.
|
||||
(active, slice_patterns, "1.0.0", Some(23121)),
|
||||
(active, slice_patterns, "1.0.0", Some(23121), None),
|
||||
|
||||
// Allows the definition of `const fn` functions.
|
||||
(active, const_fn, "1.2.0", Some(24111)),
|
||||
(active, const_fn, "1.2.0", Some(24111), None),
|
||||
|
||||
// Allows using #[prelude_import] on glob `use` items.
|
||||
//
|
||||
// rustc internal
|
||||
(active, prelude_import, "1.2.0", None),
|
||||
(active, prelude_import, "1.2.0", None, None),
|
||||
|
||||
// Allows default type parameters to influence type inference.
|
||||
(active, default_type_parameter_fallback, "1.3.0", Some(27336)),
|
||||
(active, default_type_parameter_fallback, "1.3.0", Some(27336), None),
|
||||
|
||||
// Allows associated type defaults
|
||||
(active, associated_type_defaults, "1.2.0", Some(29661)),
|
||||
(active, associated_type_defaults, "1.2.0", Some(29661), None),
|
||||
|
||||
// allow `repr(simd)`, and importing the various simd intrinsics
|
||||
(active, repr_simd, "1.4.0", Some(27731)),
|
||||
(active, repr_simd, "1.4.0", Some(27731), None),
|
||||
|
||||
// Allows cfg(target_feature = "...").
|
||||
(active, cfg_target_feature, "1.4.0", Some(29717)),
|
||||
(active, cfg_target_feature, "1.4.0", Some(29717), None),
|
||||
|
||||
// allow `extern "platform-intrinsic" { ... }`
|
||||
(active, platform_intrinsics, "1.4.0", Some(27731)),
|
||||
(active, platform_intrinsics, "1.4.0", Some(27731), None),
|
||||
|
||||
// allow `#[unwind(..)]`
|
||||
// rust runtime internal
|
||||
(active, unwind_attributes, "1.4.0", None),
|
||||
(active, unwind_attributes, "1.4.0", None, None),
|
||||
|
||||
// allow the use of `#[naked]` on functions.
|
||||
(active, naked_functions, "1.9.0", Some(32408)),
|
||||
(active, naked_functions, "1.9.0", Some(32408), None),
|
||||
|
||||
// allow `#[no_debug]`
|
||||
(active, no_debug, "1.5.0", Some(29721)),
|
||||
(active, no_debug, "1.5.0", Some(29721), None),
|
||||
|
||||
// allow `#[omit_gdb_pretty_printer_section]`
|
||||
// rustc internal.
|
||||
(active, omit_gdb_pretty_printer_section, "1.5.0", None),
|
||||
(active, omit_gdb_pretty_printer_section, "1.5.0", None, None),
|
||||
|
||||
// Allows cfg(target_vendor = "...").
|
||||
(active, cfg_target_vendor, "1.5.0", Some(29718)),
|
||||
(active, cfg_target_vendor, "1.5.0", Some(29718), None),
|
||||
|
||||
// Allow attributes on expressions and non-item statements
|
||||
(active, stmt_expr_attributes, "1.6.0", Some(15701)),
|
||||
(active, stmt_expr_attributes, "1.6.0", Some(15701), None),
|
||||
|
||||
// allow using type ascription in expressions
|
||||
(active, type_ascription, "1.6.0", Some(23416)),
|
||||
(active, type_ascription, "1.6.0", Some(23416), None),
|
||||
|
||||
// Allows cfg(target_thread_local)
|
||||
(active, cfg_target_thread_local, "1.7.0", Some(29594)),
|
||||
(active, cfg_target_thread_local, "1.7.0", Some(29594), None),
|
||||
|
||||
// rustc internal
|
||||
(active, abi_vectorcall, "1.7.0", None),
|
||||
(active, abi_vectorcall, "1.7.0", None, None),
|
||||
|
||||
// a..=b and ..=b
|
||||
(active, inclusive_range_syntax, "1.7.0", Some(28237)),
|
||||
(active, inclusive_range_syntax, "1.7.0", Some(28237), None),
|
||||
|
||||
// X..Y patterns
|
||||
(active, exclusive_range_pattern, "1.11.0", Some(37854)),
|
||||
(active, exclusive_range_pattern, "1.11.0", Some(37854), None),
|
||||
|
||||
// impl specialization (RFC 1210)
|
||||
(active, specialization, "1.7.0", Some(31844)),
|
||||
(active, specialization, "1.7.0", Some(31844), None),
|
||||
|
||||
// Allows cfg(target_has_atomic = "...").
|
||||
(active, cfg_target_has_atomic, "1.9.0", Some(32976)),
|
||||
(active, cfg_target_has_atomic, "1.9.0", Some(32976), None),
|
||||
|
||||
// Allows `impl Trait` in function return types.
|
||||
(active, conservative_impl_trait, "1.12.0", Some(34511)),
|
||||
(active, conservative_impl_trait, "1.12.0", Some(34511), None),
|
||||
|
||||
// Allows `impl Trait` in function arguments.
|
||||
(active, universal_impl_trait, "1.23.0", Some(34511)),
|
||||
(active, universal_impl_trait, "1.23.0", Some(34511), None),
|
||||
|
||||
// The `!` type
|
||||
(active, never_type, "1.13.0", Some(35121)),
|
||||
(active, never_type, "1.13.0", Some(35121), None),
|
||||
|
||||
// Allows all literals in attribute lists and values of key-value pairs.
|
||||
(active, attr_literals, "1.13.0", Some(34981)),
|
||||
(active, attr_literals, "1.13.0", Some(34981), None),
|
||||
|
||||
// Allows untagged unions `union U { ... }`
|
||||
(active, untagged_unions, "1.13.0", Some(32836)),
|
||||
(active, untagged_unions, "1.13.0", Some(32836), None),
|
||||
|
||||
// Used to identify the `compiler_builtins` crate
|
||||
// rustc internal
|
||||
(active, compiler_builtins, "1.13.0", None),
|
||||
(active, compiler_builtins, "1.13.0", None, None),
|
||||
|
||||
// Allows attributes on lifetime/type formal parameters in generics (RFC 1327)
|
||||
(active, generic_param_attrs, "1.11.0", Some(34761)),
|
||||
(active, generic_param_attrs, "1.11.0", Some(34761), None),
|
||||
|
||||
// Allows #[link(..., cfg(..))]
|
||||
(active, link_cfg, "1.14.0", Some(37406)),
|
||||
(active, link_cfg, "1.14.0", Some(37406), None),
|
||||
|
||||
(active, use_extern_macros, "1.15.0", Some(35896)),
|
||||
(active, use_extern_macros, "1.15.0", Some(35896), None),
|
||||
|
||||
// Allows #[target_feature(...)]
|
||||
(active, target_feature, "1.15.0", None),
|
||||
(active, target_feature, "1.15.0", None, None),
|
||||
|
||||
// `extern "ptx-*" fn()`
|
||||
(active, abi_ptx, "1.15.0", None),
|
||||
(active, abi_ptx, "1.15.0", None, None),
|
||||
|
||||
// The `i128` type
|
||||
(active, i128_type, "1.16.0", Some(35118)),
|
||||
(active, i128_type, "1.16.0", Some(35118), None),
|
||||
|
||||
// The `repr(i128)` annotation for enums
|
||||
(active, repr128, "1.16.0", Some(35118)),
|
||||
(active, repr128, "1.16.0", Some(35118), None),
|
||||
|
||||
// The `unadjusted` ABI. Perma unstable.
|
||||
(active, abi_unadjusted, "1.16.0", None),
|
||||
(active, abi_unadjusted, "1.16.0", None, None),
|
||||
|
||||
// Procedural macros 2.0.
|
||||
(active, proc_macro, "1.16.0", Some(38356)),
|
||||
(active, proc_macro, "1.16.0", Some(38356), None),
|
||||
|
||||
// Declarative macros 2.0 (`macro`).
|
||||
(active, decl_macro, "1.17.0", Some(39412)),
|
||||
(active, decl_macro, "1.17.0", Some(39412), None),
|
||||
|
||||
// Allows #[link(kind="static-nobundle"...]
|
||||
(active, static_nobundle, "1.16.0", Some(37403)),
|
||||
(active, static_nobundle, "1.16.0", Some(37403), None),
|
||||
|
||||
// `extern "msp430-interrupt" fn()`
|
||||
(active, abi_msp430_interrupt, "1.16.0", Some(38487)),
|
||||
(active, abi_msp430_interrupt, "1.16.0", Some(38487), None),
|
||||
|
||||
// Used to identify crates that contain sanitizer runtimes
|
||||
// rustc internal
|
||||
(active, sanitizer_runtime, "1.17.0", None),
|
||||
(active, sanitizer_runtime, "1.17.0", None, None),
|
||||
|
||||
// Used to identify crates that contain the profiler runtime
|
||||
// rustc internal
|
||||
(active, profiler_runtime, "1.18.0", None),
|
||||
(active, profiler_runtime, "1.18.0", None, None),
|
||||
|
||||
// `extern "x86-interrupt" fn()`
|
||||
(active, abi_x86_interrupt, "1.17.0", Some(40180)),
|
||||
(active, abi_x86_interrupt, "1.17.0", Some(40180), None),
|
||||
|
||||
|
||||
// Allows the `catch {...}` expression
|
||||
(active, catch_expr, "1.17.0", Some(31436)),
|
||||
(active, catch_expr, "1.17.0", Some(31436), None),
|
||||
|
||||
// Used to preserve symbols (see llvm.used)
|
||||
(active, used, "1.18.0", Some(40289)),
|
||||
(active, used, "1.18.0", Some(40289), None),
|
||||
|
||||
// Allows module-level inline assembly by way of global_asm!()
|
||||
(active, global_asm, "1.18.0", Some(35119)),
|
||||
(active, global_asm, "1.18.0", Some(35119), None),
|
||||
|
||||
// Allows overlapping impls of marker traits
|
||||
(active, overlapping_marker_traits, "1.18.0", Some(29864)),
|
||||
(active, overlapping_marker_traits, "1.18.0", Some(29864), None),
|
||||
|
||||
// Allows use of the :vis macro fragment specifier
|
||||
(active, macro_vis_matcher, "1.18.0", Some(41022)),
|
||||
(active, macro_vis_matcher, "1.18.0", Some(41022), None),
|
||||
|
||||
// rustc internal
|
||||
(active, abi_thiscall, "1.19.0", None),
|
||||
(active, abi_thiscall, "1.19.0", None, None),
|
||||
|
||||
// Allows a test to fail without failing the whole suite
|
||||
(active, allow_fail, "1.19.0", Some(42219)),
|
||||
(active, allow_fail, "1.19.0", Some(42219), None),
|
||||
|
||||
// Allows unsized tuple coercion.
|
||||
(active, unsized_tuple_coercion, "1.20.0", Some(42877)),
|
||||
(active, unsized_tuple_coercion, "1.20.0", Some(42877), None),
|
||||
|
||||
// Generators
|
||||
(active, generators, "1.21.0", None),
|
||||
(active, generators, "1.21.0", None, None),
|
||||
|
||||
// Trait aliases
|
||||
(active, trait_alias, "1.24.0", Some(41517)),
|
||||
(active, trait_alias, "1.24.0", Some(41517), None),
|
||||
|
||||
// global allocators and their internals
|
||||
(active, global_allocator, "1.20.0", None),
|
||||
(active, allocator_internals, "1.20.0", None),
|
||||
(active, global_allocator, "1.20.0", None, None),
|
||||
(active, allocator_internals, "1.20.0", None, None),
|
||||
|
||||
// #[doc(cfg(...))]
|
||||
(active, doc_cfg, "1.21.0", Some(43781)),
|
||||
(active, doc_cfg, "1.21.0", Some(43781), None),
|
||||
// #[doc(masked)]
|
||||
(active, doc_masked, "1.21.0", Some(44027)),
|
||||
(active, doc_masked, "1.21.0", Some(44027), None),
|
||||
// #[doc(spotlight)]
|
||||
(active, doc_spotlight, "1.22.0", Some(45040)),
|
||||
(active, doc_spotlight, "1.22.0", Some(45040), None),
|
||||
// #[doc(include="some-file")]
|
||||
(active, external_doc, "1.22.0", Some(44732)),
|
||||
(active, external_doc, "1.22.0", Some(44732), None),
|
||||
|
||||
// allow `#[must_use]` on functions and comparison operators (RFC 1940)
|
||||
(active, fn_must_use, "1.21.0", Some(43302)),
|
||||
(active, fn_must_use, "1.21.0", Some(43302), None),
|
||||
|
||||
// Future-proofing enums/structs with #[non_exhaustive] attribute (RFC 2008)
|
||||
(active, non_exhaustive, "1.22.0", Some(44109)),
|
||||
(active, non_exhaustive, "1.22.0", Some(44109), None),
|
||||
|
||||
// Copy/Clone closures (RFC 2132)
|
||||
(active, clone_closures, "1.22.0", Some(44490)),
|
||||
(active, copy_closures, "1.22.0", Some(44490)),
|
||||
(active, clone_closures, "1.22.0", Some(44490), None),
|
||||
(active, copy_closures, "1.22.0", Some(44490), None),
|
||||
|
||||
// allow `'_` placeholder lifetimes
|
||||
(active, underscore_lifetimes, "1.22.0", Some(44524)),
|
||||
(active, underscore_lifetimes, "1.22.0", Some(44524), None),
|
||||
|
||||
// allow `..=` in patterns (RFC 1192)
|
||||
(active, dotdoteq_in_patterns, "1.22.0", Some(28237)),
|
||||
(active, dotdoteq_in_patterns, "1.22.0", Some(28237), None),
|
||||
|
||||
// Default match binding modes (RFC 2005)
|
||||
(active, match_default_bindings, "1.22.0", Some(42640)),
|
||||
(active, match_default_bindings, "1.22.0", Some(42640), None),
|
||||
|
||||
// Trait object syntax with `dyn` prefix
|
||||
(active, dyn_trait, "1.22.0", Some(44662)),
|
||||
(active, dyn_trait, "1.22.0", Some(44662), Some(Epoch::Epoch2018)),
|
||||
|
||||
// `crate` as visibility modifier, synonymous to `pub(crate)`
|
||||
(active, crate_visibility_modifier, "1.23.0", Some(45388)),
|
||||
(active, crate_visibility_modifier, "1.23.0", Some(45388), None),
|
||||
|
||||
// extern types
|
||||
(active, extern_types, "1.23.0", Some(43467)),
|
||||
(active, extern_types, "1.23.0", Some(43467), None),
|
||||
|
||||
// Allow trait methods with arbitrary self types
|
||||
(active, arbitrary_self_types, "1.23.0", Some(44874)),
|
||||
(active, arbitrary_self_types, "1.23.0", Some(44874), None),
|
||||
|
||||
// `crate` in paths
|
||||
(active, crate_in_paths, "1.23.0", Some(45477)),
|
||||
(active, crate_in_paths, "1.23.0", Some(45477), None),
|
||||
|
||||
// In-band lifetime bindings (e.g. `fn foo(x: &'a u8) -> &'a u8`)
|
||||
(active, in_band_lifetimes, "1.23.0", Some(44524)),
|
||||
(active, in_band_lifetimes, "1.23.0", Some(44524), None),
|
||||
|
||||
// generic associated types (RFC 1598)
|
||||
(active, generic_associated_types, "1.23.0", Some(44265)),
|
||||
(active, generic_associated_types, "1.23.0", Some(44265), None),
|
||||
|
||||
// Resolve absolute paths as paths from other crates
|
||||
(active, extern_absolute_paths, "1.24.0", Some(44660)),
|
||||
(active, extern_absolute_paths, "1.24.0", Some(44660), None),
|
||||
|
||||
// `foo.rs` as an alternative to `foo/mod.rs`
|
||||
(active, non_modrs_mods, "1.24.0", Some(44660)),
|
||||
(active, non_modrs_mods, "1.24.0", Some(44660), None),
|
||||
|
||||
// Termination trait in main (RFC 1937)
|
||||
(active, termination_trait, "1.24.0", Some(43301)),
|
||||
(active, termination_trait, "1.24.0", Some(43301), None),
|
||||
|
||||
// Allows use of the :lifetime macro fragment specifier
|
||||
(active, macro_lifetime_matcher, "1.24.0", Some(46895)),
|
||||
(active, macro_lifetime_matcher, "1.24.0", Some(46895), None),
|
||||
|
||||
// `extern` in paths
|
||||
(active, extern_in_paths, "1.23.0", Some(44660)),
|
||||
(active, extern_in_paths, "1.23.0", Some(44660), None),
|
||||
|
||||
// Allows `#[repr(transparent)]` attribute on newtype structs
|
||||
(active, repr_transparent, "1.25.0", Some(43036)),
|
||||
(active, repr_transparent, "1.25.0", Some(43036), None),
|
||||
|
||||
// Use `?` as the Kleene "at most one" operator
|
||||
(active, macro_at_most_once_rep, "1.25.0", Some(48075)),
|
||||
(active, macro_at_most_once_rep, "1.25.0", Some(48075), None),
|
||||
|
||||
// Multiple patterns with `|` in `if let` and `while let`
|
||||
(active, if_while_or_patterns, "1.26.0", Some(48215)),
|
||||
(active, if_while_or_patterns, "1.26.0", Some(48215), None),
|
||||
|
||||
// Parentheses in patterns
|
||||
(active, pattern_parentheses, "1.26.0", None),
|
||||
(active, pattern_parentheses, "1.26.0", None, None),
|
||||
);
|
||||
|
||||
declare_features! (
|
||||
(removed, import_shadowing, "1.0.0", None),
|
||||
(removed, managed_boxes, "1.0.0", None),
|
||||
(removed, import_shadowing, "1.0.0", None, None),
|
||||
(removed, managed_boxes, "1.0.0", None, None),
|
||||
// Allows use of unary negate on unsigned integers, e.g. -e for e: u8
|
||||
(removed, negate_unsigned, "1.0.0", Some(29645)),
|
||||
(removed, reflect, "1.0.0", Some(27749)),
|
||||
(removed, negate_unsigned, "1.0.0", Some(29645), None),
|
||||
(removed, reflect, "1.0.0", Some(27749), None),
|
||||
// A way to temporarily opt out of opt in copy. This will *never* be accepted.
|
||||
(removed, opt_out_copy, "1.0.0", None),
|
||||
(removed, quad_precision_float, "1.0.0", None),
|
||||
(removed, struct_inherit, "1.0.0", None),
|
||||
(removed, test_removed_feature, "1.0.0", None),
|
||||
(removed, visible_private_types, "1.0.0", None),
|
||||
(removed, unsafe_no_drop_flag, "1.0.0", None),
|
||||
(removed, opt_out_copy, "1.0.0", None, None),
|
||||
(removed, quad_precision_float, "1.0.0", None, None),
|
||||
(removed, struct_inherit, "1.0.0", None, None),
|
||||
(removed, test_removed_feature, "1.0.0", None, None),
|
||||
(removed, visible_private_types, "1.0.0", None, None),
|
||||
(removed, unsafe_no_drop_flag, "1.0.0", None, None),
|
||||
// Allows using items which are missing stability attributes
|
||||
// rustc internal
|
||||
(removed, unmarked_api, "1.0.0", None),
|
||||
(removed, pushpop_unsafe, "1.2.0", None),
|
||||
(removed, allocator, "1.0.0", None),
|
||||
(removed, unmarked_api, "1.0.0", None, None),
|
||||
(removed, pushpop_unsafe, "1.2.0", None, None),
|
||||
(removed, allocator, "1.0.0", None, None),
|
||||
// Allows the `#[simd]` attribute -- removed in favor of `#[repr(simd)]`
|
||||
(removed, simd, "1.0.0", Some(27731)),
|
||||
(removed, simd, "1.0.0", Some(27731), None),
|
||||
);
|
||||
|
||||
declare_features! (
|
||||
(stable_removed, no_stack_check, "1.0.0", None),
|
||||
(stable_removed, no_stack_check, "1.0.0", None, None),
|
||||
);
|
||||
|
||||
declare_features! (
|
||||
(accepted, associated_types, "1.0.0", None),
|
||||
(accepted, associated_types, "1.0.0", None, None),
|
||||
// allow overloading augmented assignment operations like `a += b`
|
||||
(accepted, augmented_assignments, "1.8.0", Some(28235)),
|
||||
(accepted, augmented_assignments, "1.8.0", Some(28235), None),
|
||||
// allow empty structs and enum variants with braces
|
||||
(accepted, braced_empty_structs, "1.8.0", Some(29720)),
|
||||
(accepted, braced_empty_structs, "1.8.0", Some(29720), None),
|
||||
// Allows indexing into constant arrays.
|
||||
(accepted, const_indexing, "1.24.0", Some(29947)),
|
||||
(accepted, default_type_params, "1.0.0", None),
|
||||
(accepted, globs, "1.0.0", None),
|
||||
(accepted, if_let, "1.0.0", None),
|
||||
(accepted, const_indexing, "1.24.0", Some(29947), None),
|
||||
(accepted, default_type_params, "1.0.0", None, None),
|
||||
(accepted, globs, "1.0.0", None, None),
|
||||
(accepted, if_let, "1.0.0", None, None),
|
||||
// A temporary feature gate used to enable parser extensions needed
|
||||
// to bootstrap fix for #5723.
|
||||
(accepted, issue_5723_bootstrap, "1.0.0", None),
|
||||
(accepted, macro_rules, "1.0.0", None),
|
||||
(accepted, issue_5723_bootstrap, "1.0.0", None, None),
|
||||
(accepted, macro_rules, "1.0.0", None, None),
|
||||
// Allows using #![no_std]
|
||||
(accepted, no_std, "1.6.0", None),
|
||||
(accepted, slicing_syntax, "1.0.0", None),
|
||||
(accepted, struct_variant, "1.0.0", None),
|
||||
(accepted, no_std, "1.6.0", None, None),
|
||||
(accepted, slicing_syntax, "1.0.0", None, None),
|
||||
(accepted, struct_variant, "1.0.0", None, None),
|
||||
// These are used to test this portion of the compiler, they don't actually
|
||||
// mean anything
|
||||
(accepted, test_accepted_feature, "1.0.0", None),
|
||||
(accepted, tuple_indexing, "1.0.0", None),
|
||||
(accepted, test_accepted_feature, "1.0.0", None, None),
|
||||
(accepted, tuple_indexing, "1.0.0", None, None),
|
||||
// Allows macros to appear in the type position.
|
||||
(accepted, type_macros, "1.13.0", Some(27245)),
|
||||
(accepted, while_let, "1.0.0", None),
|
||||
(accepted, type_macros, "1.13.0", Some(27245), None),
|
||||
(accepted, while_let, "1.0.0", None, None),
|
||||
// Allows `#[deprecated]` attribute
|
||||
(accepted, deprecated, "1.9.0", Some(29935)),
|
||||
(accepted, deprecated, "1.9.0", Some(29935), None),
|
||||
// `expr?`
|
||||
(accepted, question_mark, "1.13.0", Some(31436)),
|
||||
(accepted, question_mark, "1.13.0", Some(31436), None),
|
||||
// Allows `..` in tuple (struct) patterns
|
||||
(accepted, dotdot_in_tuple_patterns, "1.14.0", Some(33627)),
|
||||
(accepted, item_like_imports, "1.15.0", Some(35120)),
|
||||
(accepted, dotdot_in_tuple_patterns, "1.14.0", Some(33627), None),
|
||||
(accepted, item_like_imports, "1.15.0", Some(35120), None),
|
||||
// Allows using `Self` and associated types in struct expressions and patterns.
|
||||
(accepted, more_struct_aliases, "1.16.0", Some(37544)),
|
||||
(accepted, more_struct_aliases, "1.16.0", Some(37544), None),
|
||||
// elide `'static` lifetimes in `static`s and `const`s
|
||||
(accepted, static_in_const, "1.17.0", Some(35897)),
|
||||
(accepted, static_in_const, "1.17.0", Some(35897), None),
|
||||
// Allows field shorthands (`x` meaning `x: x`) in struct literal expressions.
|
||||
(accepted, field_init_shorthand, "1.17.0", Some(37340)),
|
||||
(accepted, field_init_shorthand, "1.17.0", Some(37340), None),
|
||||
// Allows the definition recursive static items.
|
||||
(accepted, static_recursion, "1.17.0", Some(29719)),
|
||||
(accepted, static_recursion, "1.17.0", Some(29719), None),
|
||||
// pub(restricted) visibilities (RFC 1422)
|
||||
(accepted, pub_restricted, "1.18.0", Some(32409)),
|
||||
(accepted, pub_restricted, "1.18.0", Some(32409), None),
|
||||
// The #![windows_subsystem] attribute
|
||||
(accepted, windows_subsystem, "1.18.0", Some(37499)),
|
||||
(accepted, windows_subsystem, "1.18.0", Some(37499), None),
|
||||
// Allows `break {expr}` with a value inside `loop`s.
|
||||
(accepted, loop_break_value, "1.19.0", Some(37339)),
|
||||
(accepted, loop_break_value, "1.19.0", Some(37339), None),
|
||||
// Permits numeric fields in struct expressions and patterns.
|
||||
(accepted, relaxed_adts, "1.19.0", Some(35626)),
|
||||
(accepted, relaxed_adts, "1.19.0", Some(35626), None),
|
||||
// Coerces non capturing closures to function pointers
|
||||
(accepted, closure_to_fn_coercion, "1.19.0", Some(39817)),
|
||||
(accepted, closure_to_fn_coercion, "1.19.0", Some(39817), None),
|
||||
// Allows attributes on struct literal fields.
|
||||
(accepted, struct_field_attributes, "1.20.0", Some(38814)),
|
||||
(accepted, struct_field_attributes, "1.20.0", Some(38814), None),
|
||||
// Allows the definition of associated constants in `trait` or `impl`
|
||||
// blocks.
|
||||
(accepted, associated_consts, "1.20.0", Some(29646)),
|
||||
(accepted, associated_consts, "1.20.0", Some(29646), None),
|
||||
// Usage of the `compile_error!` macro
|
||||
(accepted, compile_error, "1.20.0", Some(40872)),
|
||||
(accepted, compile_error, "1.20.0", Some(40872), None),
|
||||
// See rust-lang/rfcs#1414. Allows code like `let x: &'static u32 = &42` to work.
|
||||
(accepted, rvalue_static_promotion, "1.21.0", Some(38865)),
|
||||
(accepted, rvalue_static_promotion, "1.21.0", Some(38865), None),
|
||||
// Allow Drop types in constants (RFC 1440)
|
||||
(accepted, drop_types_in_const, "1.22.0", Some(33156)),
|
||||
(accepted, drop_types_in_const, "1.22.0", Some(33156), None),
|
||||
// Allows the sysV64 ABI to be specified on all platforms
|
||||
// instead of just the platforms on which it is the C ABI
|
||||
(accepted, abi_sysv64, "1.24.0", Some(36167)),
|
||||
(accepted, abi_sysv64, "1.24.0", Some(36167), None),
|
||||
// Allows `repr(align(16))` struct attribute (RFC 1358)
|
||||
(accepted, repr_align, "1.25.0", Some(33626)),
|
||||
(accepted, repr_align, "1.25.0", Some(33626), None),
|
||||
// allow '|' at beginning of match arms (RFC 1925)
|
||||
(accepted, match_beginning_vert, "1.25.0", Some(44101)),
|
||||
(accepted, match_beginning_vert, "1.25.0", Some(44101), None),
|
||||
// Nested groups in `use` (RFC 2128)
|
||||
(accepted, use_nested_groups, "1.25.0", Some(44494)),
|
||||
(accepted, use_nested_groups, "1.25.0", Some(44494), None),
|
||||
);
|
||||
|
||||
// If you change this, please modify src/doc/unstable-book as well. You must
|
||||
|
|
@ -1793,11 +1795,22 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
|
|||
}
|
||||
}
|
||||
|
||||
pub fn get_features(span_handler: &Handler, krate_attrs: &[ast::Attribute]) -> Features {
|
||||
pub fn get_features(span_handler: &Handler, krate_attrs: &[ast::Attribute],
|
||||
epoch: Epoch) -> Features {
|
||||
let mut features = Features::new();
|
||||
|
||||
let mut feature_checker = FeatureChecker::default();
|
||||
|
||||
for &(.., f_epoch, set) in ACTIVE_FEATURES.iter() {
|
||||
if let Some(f_epoch) = f_epoch {
|
||||
if epoch >= f_epoch {
|
||||
// FIXME(Manishearth) there is currently no way to set
|
||||
// lang features by epoch
|
||||
set(&mut features, DUMMY_SP);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for attr in krate_attrs {
|
||||
if !attr.check_name("feature") {
|
||||
continue
|
||||
|
|
@ -1818,8 +1831,8 @@ pub fn get_features(span_handler: &Handler, krate_attrs: &[ast::Attribute]) -> F
|
|||
continue
|
||||
};
|
||||
|
||||
if let Some(&(_, _, _, set)) = ACTIVE_FEATURES.iter()
|
||||
.find(|& &(n, _, _, _)| name == n) {
|
||||
if let Some(&(_, _, _, _, set)) = ACTIVE_FEATURES.iter()
|
||||
.find(|& &(n, ..)| name == n) {
|
||||
set(&mut features, mi.span);
|
||||
feature_checker.collect(&features, mi.span);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,6 +23,7 @@
|
|||
#![feature(unicode)]
|
||||
#![feature(rustc_diagnostic_macros)]
|
||||
#![feature(match_default_bindings)]
|
||||
#![feature(non_exhaustive)]
|
||||
#![feature(i128_type)]
|
||||
#![feature(const_atomic_usize_new)]
|
||||
#![feature(rustc_attrs)]
|
||||
|
|
@ -114,6 +115,7 @@ pub mod codemap;
|
|||
#[macro_use]
|
||||
pub mod config;
|
||||
pub mod entry;
|
||||
pub mod epoch;
|
||||
pub mod feature_gate;
|
||||
pub mod fold;
|
||||
pub mod parse;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,21 @@
|
|||
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution and at
|
||||
// http://rust-lang.org/COPYRIGHT.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
// Checks if the correct registers are being used to pass arguments
|
||||
// when the sysv64 ABI is specified.
|
||||
|
||||
// compile-flags: -Zepoch=2018
|
||||
|
||||
pub trait Foo {}
|
||||
|
||||
// should compile without the dyn trait feature flag
|
||||
fn foo(x: &dyn Foo) {}
|
||||
|
||||
pub fn main() {}
|
||||
|
|
@ -5,6 +5,6 @@ LL | if data.is_null() {}
|
|||
| ^^^^^^^
|
||||
|
|
||||
= note: #[warn(tyvar_behind_raw_pointer)] on by default
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 epoch!
|
||||
= note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue