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Auto merge of #117377 - dtolnay:deprecatedsince, r=cjgillot

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Store #[deprecated] attribute's `since` value in parsed form

This PR implements the first followup bullet listed in https://github.com/rust-lang/rust/pull/117148#issue-1960240108.

We centralize error handling to the attribute parsing code in `compiler/rustc_attr/src/builtin.rs`, and thereby remove some awkward error codepaths from later phases of compilation that had to make sense of these #\[deprecated\] attributes, namely `compiler/rustc_passes/src/stability.rs` and `compiler/rustc_middle/src/middle/stability.rs`.
This commit is contained in:
bors 2023-10-31 10:42:24 +00:00
commit 22b27120b9
14 changed files with 166 additions and 196 deletions
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84
compiler/rustc_attr/src/builtin.rs
View File

@ -139,7 +139,7 @@ pub enum StabilityLevel {
/// `#[stable]`
Stable {
/// Rust release which stabilized this feature.
since: Since,
since: StableSince,
/// Is this item allowed to be referred to on stable, despite being contained in unstable
/// modules?
allowed_through_unstable_modules: bool,
@ -149,7 +149,7 @@ pub enum StabilityLevel {
/// Rust release in which a feature is stabilized.
#[derive(Encodable, Decodable, PartialEq, Copy, Clone, Debug, Eq, Hash)]
#[derive(HashStable_Generic)]
pub enum Since {
pub enum StableSince {
Version(RustcVersion),
/// Stabilized in the upcoming version, whatever number that is.
Current,
@ -378,16 +378,16 @@ fn parse_stability(sess: &Session, attr: &Attribute) -> Option<(Symbol, Stabilit
let since = if let Some(since) = since {
if since.as_str() == VERSION_PLACEHOLDER {
Since::Current
StableSince::Current
} else if let Some(version) = parse_version(since) {
Since::Version(version)
StableSince::Version(version)
} else {
sess.emit_err(session_diagnostics::InvalidSince { span: attr.span });
Since::Err
StableSince::Err
}
} else {
sess.emit_err(session_diagnostics::MissingSince { span: attr.span });
Since::Err
StableSince::Err
};
match feature {
@ -720,17 +720,49 @@ pub fn eval_condition(
#[derive(Copy, Debug, Encodable, Decodable, Clone, HashStable_Generic)]
pub struct Deprecation {
pub since: Option<Symbol>,
pub since: DeprecatedSince,
/// The note to issue a reason.
pub note: Option<Symbol>,
/// A text snippet used to completely replace any use of the deprecated item in an expression.
///
/// This is currently unstable.
pub suggestion: Option<Symbol>,
}
/// Whether to treat the since attribute as being a Rust version identifier
/// (rather than an opaque string).
pub is_since_rustc_version: bool,
/// Release in which an API is deprecated.
#[derive(Copy, Debug, Encodable, Decodable, Clone, HashStable_Generic)]
pub enum DeprecatedSince {
RustcVersion(RustcVersion),
/// Deprecated in the future ("to be determined").
Future,
/// `feature(staged_api)` is off. Deprecation versions outside the standard
/// library are allowed to be arbitrary strings, for better or worse.
NonStandard(Symbol),
/// Deprecation version is unspecified but optional.
Unspecified,
/// Failed to parse a deprecation version, or the deprecation version is
/// unspecified and required. An error has already been emitted.
Err,
}
impl Deprecation {
/// Whether an item marked with #[deprecated(since = "X")] is currently
/// deprecated (i.e., whether X is not greater than the current rustc
/// version).
pub fn is_in_effect(&self) -> bool {
match self.since {
DeprecatedSince::RustcVersion(since) => since <= RustcVersion::CURRENT,
DeprecatedSince::Future => false,
// The `since` field doesn't have semantic purpose without `#![staged_api]`.
DeprecatedSince::NonStandard(_) => true,
// Assume deprecation is in effect if "since" field is absent or invalid.
DeprecatedSince::Unspecified | DeprecatedSince::Err => true,
}
}
pub fn is_since_rustc_version(&self) -> bool {
matches!(self.since, DeprecatedSince::RustcVersion(_))
}
}
/// Finds the deprecation attribute. `None` if none exists.
@ -839,22 +871,30 @@ pub fn find_deprecation(
}
}
if is_rustc {
if since.is_none() {
sess.emit_err(session_diagnostics::MissingSince { span: attr.span });
continue;
let since = if let Some(since) = since {
if since.as_str() == "TBD" {
DeprecatedSince::Future
} else if !is_rustc {
DeprecatedSince::NonStandard(since)
} else if let Some(version) = parse_version(since) {
DeprecatedSince::RustcVersion(version)
} else {
sess.emit_err(session_diagnostics::InvalidSince { span: attr.span });
DeprecatedSince::Err
}
} else if is_rustc {
sess.emit_err(session_diagnostics::MissingSince { span: attr.span });
DeprecatedSince::Err
} else {
DeprecatedSince::Unspecified
};
if note.is_none() {
sess.emit_err(session_diagnostics::MissingNote { span: attr.span });
continue;
}
if is_rustc && note.is_none() {
sess.emit_err(session_diagnostics::MissingNote { span: attr.span });
continue;
}
depr = Some((
Deprecation { since, note, suggestion, is_since_rustc_version: is_rustc },
attr.span,
));
depr = Some((Deprecation { since, note, suggestion }, attr.span));
}
depr

72
compiler/rustc_middle/src/middle/stability.rs
View File

@ -5,7 +5,9 @@ pub use self::StabilityLevel::*;
use crate::ty::{self, TyCtxt};
use rustc_ast::NodeId;
use rustc_attr::{self as attr, ConstStability, DefaultBodyStability, Deprecation, Stability};
use rustc_attr::{
self as attr, ConstStability, DefaultBodyStability, DeprecatedSince, Deprecation, Stability,
};
use rustc_data_structures::fx::FxHashMap;
use rustc_errors::{Applicability, Diagnostic};
use rustc_feature::GateIssue;
@ -16,7 +18,7 @@ use rustc_middle::ty::print::with_no_trimmed_paths;
use rustc_session::lint::builtin::{DEPRECATED, DEPRECATED_IN_FUTURE, SOFT_UNSTABLE};
use rustc_session::lint::{BuiltinLintDiagnostics, Level, Lint, LintBuffer};
use rustc_session::parse::feature_err_issue;
use rustc_session::{RustcVersion, Session};
use rustc_session::Session;
use rustc_span::symbol::{sym, Symbol};
use rustc_span::Span;
use std::num::NonZeroU32;
@ -123,41 +125,6 @@ pub fn report_unstable(
}
}
/// Checks whether an item marked with `deprecated(since="X")` is currently
/// deprecated (i.e., whether X is not greater than the current rustc version).
pub fn deprecation_in_effect(depr: &Deprecation) -> bool {
let is_since_rustc_version = depr.is_since_rustc_version;
let since = depr.since.as_ref().map(Symbol::as_str);
if !is_since_rustc_version {
// The `since` field doesn't have semantic purpose without `#![staged_api]`.
return true;
}
if let Some(since) = since {
if since == "TBD" {
return false;
}
// We ignore non-integer components of the version (e.g., "nightly").
let since: Vec<u16> =
since.split(|c| c == '.' || c == '-').flat_map(|s| s.parse()).collect();
// We simply treat invalid `since` attributes as relating to a previous
// Rust version, thus always displaying the warning.
if since.len() != 3 {
return true;
}
let rustc = RustcVersion::CURRENT;
return since.as_slice() <= &[rustc.major, rustc.minor, rustc.patch];
};
// Assume deprecation is in effect if "since" field is missing
// or if we can't determine the current Rust version.
true
}
pub fn deprecation_suggestion(
diag: &mut Diagnostic,
kind: &str,
@ -180,7 +147,7 @@ fn deprecation_lint(is_in_effect: bool) -> &'static Lint {
fn deprecation_message(
is_in_effect: bool,
since: Option<Symbol>,
since: DeprecatedSince,
note: Option<Symbol>,
kind: &str,
path: &str,
@ -188,17 +155,18 @@ fn deprecation_message(
let message = if is_in_effect {
format!("use of deprecated {kind} `{path}`")
} else {
let since = since.as_ref().map(Symbol::as_str);
if since == Some("TBD") {
format!("use of {kind} `{path}` that will be deprecated in a future Rust version")
} else {
format!(
"use of {} `{}` that will be deprecated in future version {}",
kind,
path,
since.unwrap()
)
match since {
DeprecatedSince::RustcVersion(version) => format!(
"use of {kind} `{path}` that will be deprecated in future version {version}"
),
DeprecatedSince::Future => {
format!("use of {kind} `{path}` that will be deprecated in a future Rust version")
}
DeprecatedSince::NonStandard(_)
| DeprecatedSince::Unspecified
| DeprecatedSince::Err => {
unreachable!("this deprecation is always in effect; {since:?}")
}
}
};
@ -213,7 +181,7 @@ pub fn deprecation_message_and_lint(
kind: &str,
path: &str,
) -> (String, &'static Lint) {
let is_in_effect = deprecation_in_effect(depr);
let is_in_effect = depr.is_in_effect();
(
deprecation_message(is_in_effect, depr.since, depr.note, kind, path),
deprecation_lint(is_in_effect),
@ -381,11 +349,11 @@ impl<'tcx> TyCtxt<'tcx> {
// With #![staged_api], we want to emit down the whole
// hierarchy.
let depr_attr = &depr_entry.attr;
if !skip || depr_attr.is_since_rustc_version {
if !skip || depr_attr.is_since_rustc_version() {
// Calculating message for lint involves calling `self.def_path_str`.
// Which by default to calculate visible path will invoke expensive `visible_parent_map` query.
// So we skip message calculation altogether, if lint is allowed.
let is_in_effect = deprecation_in_effect(depr_attr);
let is_in_effect = depr_attr.is_in_effect();
let lint = deprecation_lint(is_in_effect);
if self.lint_level_at_node(lint, id).0 != Level::Allow {
let def_path = with_no_trimmed_paths!(self.def_path_str(def_id));

5
compiler/rustc_passes/messages.ftl
View File

@ -396,11 +396,6 @@ passes_invalid_attr_at_crate_level =
passes_invalid_attr_at_crate_level_item =
the inner attribute doesn't annotate this {$kind}
passes_invalid_deprecation_version =
invalid deprecation version found
.label = invalid deprecation version
.item = the stability attribute annotates this item
passes_invalid_macro_export_arguments = `{$name}` isn't a valid `#[macro_export]` argument
passes_invalid_macro_export_arguments_too_many_items = `#[macro_export]` can only take 1 or 0 arguments

10
compiler/rustc_passes/src/errors.rs
View File

@ -1524,16 +1524,6 @@ pub struct CannotStabilizeDeprecated {
pub item_sp: Span,
}
#[derive(Diagnostic)]
#[diag(passes_invalid_deprecation_version)]
pub struct InvalidDeprecationVersion {
#[primary_span]
#[label]
pub span: Span,
#[label(passes_item)]
pub item_sp: Span,
}
#[derive(Diagnostic)]
#[diag(passes_missing_stability_attr)]
pub struct MissingStabilityAttr<'a> {

55
compiler/rustc_passes/src/stability.rs
View File

@ -3,8 +3,8 @@
use crate::errors;
use rustc_attr::{
self as attr, ConstStability, Since, Stability, StabilityLevel, Unstable, UnstableReason,
VERSION_PLACEHOLDER,
self as attr, ConstStability, DeprecatedSince, Stability, StabilityLevel, StableSince,
Unstable, UnstableReason, VERSION_PLACEHOLDER,
};
use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap};
use rustc_hir as hir;
@ -24,8 +24,6 @@ use rustc_span::symbol::{sym, Symbol};
use rustc_span::Span;
use rustc_target::spec::abi::Abi;
use std::cmp::Ordering;
use std::iter;
use std::mem::replace;
use std::num::NonZeroU32;
@ -198,10 +196,8 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> {
}
}
if let Some((rustc_attr::Deprecation { is_since_rustc_version: true, .. }, span)) = &depr {
if stab.is_none() {
self.tcx.sess.emit_err(errors::DeprecatedAttribute { span: *span });
}
if let Some((depr, span)) = &depr && depr.is_since_rustc_version() && stab.is_none() {
self.tcx.sess.emit_err(errors::DeprecatedAttribute { span: *span });
}
if let Some((body_stab, _span)) = body_stab {
@ -223,44 +219,23 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> {
// Check if deprecated_since < stable_since. If it is,
// this is *almost surely* an accident.
if let (&Some(dep_since), &attr::Stable { since: stab_since, .. }) =
(&depr.as_ref().and_then(|(d, _)| d.since), &stab.level)
if let (
&Some(DeprecatedSince::RustcVersion(dep_since)),
&attr::Stable { since: stab_since, .. },
) = (&depr.as_ref().map(|(d, _)| d.since), &stab.level)
{
match stab_since {
Since::Current => {
StableSince::Current => {
self.tcx.sess.emit_err(errors::CannotStabilizeDeprecated { span, item_sp });
}
Since::Version(stab_since) => {
// Explicit version of iter::order::lt to handle parse errors properly
for (dep_v, stab_v) in iter::zip(
dep_since.as_str().split('.'),
[stab_since.major, stab_since.minor, stab_since.patch],
) {
match dep_v.parse::<u64>() {
Ok(dep_vp) => match dep_vp.cmp(&u64::from(stab_v)) {
Ordering::Less => {
self.tcx.sess.emit_err(errors::CannotStabilizeDeprecated {
span,
item_sp,
});
break;
}
Ordering::Equal => continue,
Ordering::Greater => break,
},
Err(_) => {
if dep_v != "TBD" {
self.tcx.sess.emit_err(errors::InvalidDeprecationVersion {
span,
item_sp,
});
}
break;
}
}
StableSince::Version(stab_since) => {
if dep_since < stab_since {
self.tcx
.sess
.emit_err(errors::CannotStabilizeDeprecated { span, item_sp });
}
}
Since::Err => {
StableSince::Err => {
// An error already reported. Assume the unparseable stabilization
// version is older than the deprecation version.
}

6
src/librustdoc/clean/types.rs
View File

@ -12,7 +12,7 @@ use thin_vec::ThinVec;
use rustc_ast as ast;
use rustc_ast_pretty::pprust;
use rustc_attr::{ConstStability, Deprecation, Since, Stability, StabilityLevel};
use rustc_attr::{ConstStability, Deprecation, Stability, StabilityLevel, StableSince};
use rustc_const_eval::const_eval::is_unstable_const_fn;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_hir as hir;
@ -585,14 +585,14 @@ impl Item {
})
}
pub(crate) fn stable_since(&self, tcx: TyCtxt<'_>) -> Option<Since> {
pub(crate) fn stable_since(&self, tcx: TyCtxt<'_>) -> Option<StableSince> {
match self.stability(tcx)?.level {
StabilityLevel::Stable { since, .. } => Some(since),
StabilityLevel::Unstable { .. } => None,
}
}
pub(crate) fn const_stable_since(&self, tcx: TyCtxt<'_>) -> Option<Since> {
pub(crate) fn const_stable_since(&self, tcx: TyCtxt<'_>) -> Option<StableSince> {
match self.const_stability(tcx)?.level {
StabilityLevel::Stable { since, .. } => Some(since),
StabilityLevel::Unstable { .. } => None,

47
src/librustdoc/html/render/mod.rs
View File

@ -48,12 +48,11 @@ use std::str;
use std::string::ToString;
use askama::Template;
use rustc_attr::{ConstStability, Deprecation, Since, StabilityLevel};
use rustc_attr::{ConstStability, DeprecatedSince, Deprecation, StabilityLevel, StableSince};
use rustc_data_structures::captures::Captures;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_hir::def_id::{DefId, DefIdSet};
use rustc_hir::Mutability;
use rustc_middle::middle::stability;
use rustc_middle::ty::{self, TyCtxt};
use rustc_session::RustcVersion;
use rustc_span::{
@ -617,24 +616,22 @@ fn short_item_info(
) -> Vec<ShortItemInfo> {
let mut extra_info = vec![];
if let Some(depr @ Deprecation { note, since, is_since_rustc_version: _, suggestion: _ }) =
item.deprecation(cx.tcx())
{
if let Some(depr @ Deprecation { note, since, suggestion: _ }) = item.deprecation(cx.tcx()) {
// We display deprecation messages for #[deprecated], but only display
// the future-deprecation messages for rustc versions.
let mut message = if let Some(since) = since {
let since = since.as_str();
if !stability::deprecation_in_effect(&depr) {
if since == "TBD" {
String::from("Deprecating in a future Rust version")
let mut message = match since {
DeprecatedSince::RustcVersion(version) => {
if depr.is_in_effect() {
format!("Deprecated since {version}")
} else {
format!("Deprecating in {}", Escape(since))
format!("Deprecating in {version}")
}
} else {
format!("Deprecated since {}", Escape(since))
}
} else {
String::from("Deprecated")
DeprecatedSince::Future => String::from("Deprecating in a future Rust version"),
DeprecatedSince::NonStandard(since) => {
format!("Deprecated since {}", Escape(since.as_str()))
}
DeprecatedSince::Unspecified | DeprecatedSince::Err => String::from("Deprecated"),
};
if let Some(note) = note {
@ -912,10 +909,10 @@ fn assoc_method(
/// consequence of the above rules.
fn render_stability_since_raw_with_extra(
w: &mut Buffer,
ver: Option<Since>,
ver: Option<StableSince>,
const_stability: Option<ConstStability>,
containing_ver: Option<Since>,
containing_const_ver: Option<Since>,
containing_ver: Option<StableSince>,
containing_const_ver: Option<StableSince>,
extra_class: &str,
) -> bool {
let stable_version = if ver != containing_ver && let Some(ver) = &ver {
@ -977,21 +974,21 @@ fn render_stability_since_raw_with_extra(
!stability.is_empty()
}
fn since_to_string(since: &Since) -> Option<String> {
fn since_to_string(since: &StableSince) -> Option<String> {
match since {
Since::Version(since) => Some(since.to_string()),
Since::Current => Some(RustcVersion::CURRENT.to_string()),
Since::Err => None,
StableSince::Version(since) => Some(since.to_string()),
StableSince::Current => Some(RustcVersion::CURRENT.to_string()),
StableSince::Err => None,
}
}
#[inline]
fn render_stability_since_raw(
w: &mut Buffer,
ver: Option<Since>,
ver: Option<StableSince>,
const_stability: Option<ConstStability>,
containing_ver: Option<Since>,
containing_const_ver: Option<Since>,
containing_ver: Option<StableSince>,
containing_const_ver: Option<StableSince>,
) -> bool {
render_stability_since_raw_with_extra(
w,

7
src/librustdoc/html/render/print_item.rs
View File

@ -6,7 +6,6 @@ use rustc_hir as hir;
use rustc_hir::def::CtorKind;
use rustc_hir::def_id::DefId;
use rustc_index::IndexVec;
use rustc_middle::middle::stability;
use rustc_middle::query::Key;
use rustc_middle::ty::{self, TyCtxt};
use rustc_span::hygiene::MacroKind;
@ -591,11 +590,7 @@ fn extra_info_tags<'a, 'tcx: 'a>(
// The trailing space after each tag is to space it properly against the rest of the docs.
if let Some(depr) = &item.deprecation(tcx) {
let message = if stability::deprecation_in_effect(depr) {
"Deprecated"
} else {
"Deprecation planned"
};
let message = if depr.is_in_effect() { "Deprecated" } else { "Deprecation planned" };
write!(f, "{}", tag_html("deprecated", "", message))?;
}

12
src/librustdoc/json/conversions.rs
View File

@ -7,6 +7,7 @@
use std::fmt;
use rustc_ast::ast;
use rustc_attr::DeprecatedSince;
use rustc_hir::{def::CtorKind, def::DefKind, def_id::DefId};
use rustc_metadata::rendered_const;
use rustc_middle::ty::{self, TyCtxt};
@ -138,9 +139,14 @@ where
}
pub(crate) fn from_deprecation(deprecation: rustc_attr::Deprecation) -> Deprecation {
#[rustfmt::skip]
let rustc_attr::Deprecation { since, note, is_since_rustc_version: _, suggestion: _ } = deprecation;
Deprecation { since: since.map(|s| s.to_string()), note: note.map(|s| s.to_string()) }
let rustc_attr::Deprecation { since, note, suggestion: _ } = deprecation;
let since = match since {
DeprecatedSince::RustcVersion(version) => Some(version.to_string()),
DeprecatedSince::Future => Some("TBD".to_owned()),
DeprecatedSince::NonStandard(since) => Some(since.to_string()),
DeprecatedSince::Unspecified | DeprecatedSince::Err => None,
};
Deprecation { since, note: note.map(|s| s.to_string()) }
}
impl FromWithTcx<clean::GenericArgs> for GenericArgs {

8
src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
View File

@ -5,7 +5,7 @@
use crate::msrvs::Msrv;
use hir::LangItem;
use rustc_attr::Since;
use rustc_attr::StableSince;
use rustc_const_eval::transform::check_consts::ConstCx;
use rustc_hir as hir;
use rustc_hir::def_id::DefId;
@ -372,9 +372,9 @@ fn is_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: &Msrv) -> bool {
// as a part of an unimplemented MSRV check https://github.com/rust-lang/rust/issues/65262.
let const_stab_rust_version = match since {
Since::Version(version) => version,
Since::Current => rustc_session::RustcVersion::CURRENT,
Since::Err => return false,
StableSince::Version(version) => version,
StableSince::Current => rustc_session::RustcVersion::CURRENT,
StableSince::Err => return false,
};
msrv.meets(RustcVersion::new(

1
tests/ui/stability-attribute/stability-attribute-sanity-4.rs
View File

@ -19,6 +19,7 @@ mod bogus_attribute_types_2 {
#[stable(feature = "a", since = "3.3.3")]
#[deprecated] //~ ERROR missing 'since'
//~^ ERROR missing 'note'
fn f5() { }
#[stable(feature = "a", since = "3.3.3")]

13
tests/ui/stability-attribute/stability-attribute-sanity-4.stderr
View File

@ -28,12 +28,19 @@ error[E0542]: missing 'since'
LL | #[deprecated]
| ^^^^^^^^^^^^^
error[E0543]: missing 'note'
--> $DIR/stability-attribute-sanity-4.rs:21:5
|
LL | #[deprecated]
| ^^^^^^^^^^^^^
error[E0542]: missing 'since'
--> $DIR/stability-attribute-sanity-4.rs:25:5
--> $DIR/stability-attribute-sanity-4.rs:26:5
|
LL | #[deprecated = "a"]
| ^^^^^^^^^^^^^^^^^^^
error: aborting due to 6 previous errors
error: aborting due to 7 previous errors
For more information about this error, try `rustc --explain E0542`.
Some errors have detailed explanations: E0542, E0543.
For more information about an error, try `rustc --explain E0542`.

13
tests/ui/stability-attribute/stability-attribute-sanity.rs
View File

@ -41,7 +41,7 @@ mod missing_version {
fn f2() { }
#[stable(feature = "a", since = "4.4.4")]
#[deprecated(since = "a")] //~ ERROR missing 'note' [E0543]
#[deprecated(since = "5.5.5")] //~ ERROR missing 'note' [E0543]
fn f3() { }
}
@ -58,18 +58,17 @@ fn multiple2() { }
fn multiple3() { }
#[stable(feature = "e", since = "b")] //~ ERROR 'since' must be a Rust version number, such as "1.31.0"
#[deprecated(since = "b", note = "text")]
#[deprecated(since = "b", note = "text")] //~ ERROR multiple `deprecated` attributes
#[deprecated(since = "5.5.5", note = "text")]
#[deprecated(since = "5.5.5", note = "text")] //~ ERROR multiple `deprecated` attributes
#[rustc_const_unstable(feature = "c", issue = "none")]
#[rustc_const_unstable(feature = "d", issue = "none")] //~ ERROR multiple stability levels
pub const fn multiple4() { }
#[stable(feature = "a", since = "1.0.0")] //~ ERROR invalid deprecation version found
//~^ ERROR feature `a` is declared stable since 1.0.0
#[deprecated(since = "invalid", note = "text")]
#[stable(feature = "a", since = "1.0.0")] //~ ERROR feature `a` is declared stable since 1.0.0
#[deprecated(since = "invalid", note = "text")] //~ ERROR 'since' must be a Rust version number, such as "1.31.0"
fn invalid_deprecation_version() {}
#[deprecated(since = "a", note = "text")]
#[deprecated(since = "5.5.5", note = "text")]
fn deprecated_without_unstable_or_stable() { }
//~^^ ERROR deprecated attribute must be paired with either stable or unstable attribute

29
tests/ui/stability-attribute/stability-attribute-sanity.stderr
View File

@ -1,14 +1,14 @@
error: multiple `deprecated` attributes
--> $DIR/stability-attribute-sanity.rs:62:1
|
LL | #[deprecated(since = "b", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
LL | #[deprecated(since = "5.5.5", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
|
note: attribute also specified here
--> $DIR/stability-attribute-sanity.rs:61:1
|
LL | #[deprecated(since = "b", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL | #[deprecated(since = "5.5.5", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0541]: unknown meta item 'reason'
--> $DIR/stability-attribute-sanity.rs:8:46
@ -73,8 +73,8 @@ LL | #[deprecated(note = "a")]
error[E0543]: missing 'note'
--> $DIR/stability-attribute-sanity.rs:44:5
|
LL | #[deprecated(since = "a")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
LL | #[deprecated(since = "5.5.5")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0544]: multiple stability levels
--> $DIR/stability-attribute-sanity.rs:49:1
@ -106,20 +106,17 @@ error[E0544]: multiple stability levels
LL | #[rustc_const_unstable(feature = "d", issue = "none")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: invalid deprecation version found
--> $DIR/stability-attribute-sanity.rs:67:1
error: 'since' must be a Rust version number, such as "1.31.0"
--> $DIR/stability-attribute-sanity.rs:68:1
|
LL | #[stable(feature = "a", since = "1.0.0")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid deprecation version
...
LL | fn invalid_deprecation_version() {}
| ----------------------------------- the stability attribute annotates this item
LL | #[deprecated(since = "invalid", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0549]: deprecated attribute must be paired with either stable or unstable attribute
--> $DIR/stability-attribute-sanity.rs:72:1
--> $DIR/stability-attribute-sanity.rs:71:1
|
LL | #[deprecated(since = "a", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL | #[deprecated(since = "5.5.5", note = "text")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0711]: feature `a` is declared stable since 1.0.0, but was previously declared stable since 4.4.4
--> $DIR/stability-attribute-sanity.rs:67:1