Auto merge of #90235 - matthiaskrgr:rollup-7pqtevk, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - #89558 (Add rustc lint, warning when iterating over hashmaps)
 - #90100 (Skip documentation for tier 2 targets on dist-x86_64-apple-darwin)
 - #90155 (Fix alignment of method headings for scannability)
 - #90162 (Mark `{array, slice}::{from_ref, from_mut}` as const fn)
 - #90221 (Fix ICE when forgetting to `Box` a parameter to a `Self::func` call)
 - #90234 (Temporarily turn overflow checks off for rustc-rayon-core)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2021-10-24 14:12:10 +00:00
commit 00d5e42e77
58 changed files with 409 additions and 98 deletions

View file

@ -287,7 +287,7 @@ jobs:
os: ubuntu-latest-xl
- name: dist-x86_64-apple
env:
SCRIPT: "./x.py dist"
SCRIPT: "./x.py dist --exclude src/doc --exclude extended && ./x.py dist --target=x86_64-apple-darwin src/doc && ./x.py dist extended"
RUST_CONFIGURE_ARGS: "--host=x86_64-apple-darwin --target=x86_64-apple-darwin,aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
MACOSX_DEPLOYMENT_TARGET: 10.7
@ -532,9 +532,16 @@ jobs:
strategy:
matrix:
include:
- name: dist-x86_64-linux
os: ubuntu-latest-xl
env: {}
- name: dist-x86_64-apple
env:
SCRIPT: "./x.py dist --exclude src/doc --exclude extended && ./x.py dist --target=x86_64-apple-darwin src/doc && ./x.py dist extended"
RUST_CONFIGURE_ARGS: "--host=x86_64-apple-darwin --target=x86_64-apple-darwin,aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
MACOSX_DEPLOYMENT_TARGET: 10.7
NO_LLVM_ASSERTIONS: 1
NO_DEBUG_ASSERTIONS: 1
DIST_REQUIRE_ALL_TOOLS: 1
os: macos-latest
timeout-minutes: 600
runs-on: "${{ matrix.os }}"
steps:

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@ -77,6 +77,13 @@ overflow-checks = false
# per-crate configuration isn't specifiable in the environment.
codegen-units = 10000
[profile.release.package.rustc-rayon-core]
# The rustc fork of Rayon has deadlock detection code which intermittently
# causes overflows in the CI (see https://github.com/rust-lang/rust/issues/90227)
# so we turn overflow checks off for now.
# FIXME: This workaround should be removed once #90227 is fixed.
overflow-checks = false
# These dependencies of the standard library implement symbolication for
# backtraces on most platforms. Their debuginfo causes both linking to be slower
# (more data to chew through) and binaries to be larger without really all that

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@ -35,6 +35,7 @@
#![feature(iter_zip)]
#![feature(never_type)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
use rustc_ast::token::{self, Token};
use rustc_ast::tokenstream::{CanSynthesizeMissingTokens, TokenStream, TokenTree};

View file

@ -7,6 +7,7 @@
#![feature(iter_is_partitioned)]
#![feature(box_patterns)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
pub mod ast_validation;
pub mod feature_gate;

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@ -13,6 +13,7 @@
#![feature(trusted_step)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_middle;

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@ -11,6 +11,7 @@
#![feature(proc_macro_internals)]
#![feature(proc_macro_quote)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
extern crate proc_macro;

View file

@ -13,6 +13,7 @@
#![feature(iter_zip)]
#![feature(nll)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
use back::write::{create_informational_target_machine, create_target_machine};

View file

@ -8,6 +8,7 @@
#![feature(nll)]
#![feature(associated_type_bounds)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
//! This crate contains codegen code that is used by all codegen backends (LLVM and others).
//! The backend-agnostic functions of this crate use functions defined in various traits that

View file

@ -24,6 +24,7 @@ Rust MIR: a lowered representation of Rust.
#![feature(trusted_step)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

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@ -28,6 +28,7 @@
#![feature(thread_id_value)]
#![allow(rustc::default_hash_types)]
#![deny(unaligned_references)]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -8,6 +8,7 @@
#![feature(nll)]
#![feature(once_cell)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;
@ -846,7 +847,7 @@ Available lint options:
let builtin = sort_lints(sess, builtin);
let (plugin_groups, builtin_groups): (Vec<_>, _) =
lint_store.get_lint_groups().iter().cloned().partition(|&(.., p)| p);
lint_store.get_lint_groups().partition(|&(.., p)| p);
let plugin_groups = sort_lint_groups(plugin_groups);
let builtin_groups = sort_lint_groups(builtin_groups);

View file

@ -10,6 +10,7 @@
#![feature(iter_zip)]
#![feature(let_else)]
#![feature(nll)]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -10,6 +10,7 @@
#![feature(proc_macro_span)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -460,6 +460,9 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
// Prevents field reads in the marked trait or method to be considered
// during dead code analysis.
rustc_attr!(rustc_trivial_field_reads, Normal, template!(Word), INTERNAL_UNSTABLE),
// Used by the `rustc::potential_query_instability` lint to warn methods which
// might not be stable during incremental compilation.
rustc_attr!(rustc_lint_query_instability, Normal, template!(Word), INTERNAL_UNSTABLE),
// ==========================================================================
// Internal attributes, Const related:

View file

@ -5,6 +5,7 @@
#![feature(let_else)]
#![feature(nll)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_middle;

View file

@ -24,6 +24,7 @@
#![feature(min_specialization)]
#![feature(label_break_value)]
#![recursion_limit = "512"] // For rustdoc
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -5,6 +5,7 @@
#![feature(nll)]
#![feature(once_cell)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
mod callbacks;
pub mod interface;

View file

@ -144,7 +144,11 @@ impl LintStore {
&self.lints
}
pub fn get_lint_groups<'t>(&'t self) -> Vec<(&'static str, Vec<LintId>, bool)> {
pub fn get_lint_groups<'t>(
&'t self,
) -> impl Iterator<Item = (&'static str, Vec<LintId>, bool)> + 't {
// This function is not used in a way which observes the order of lints.
#[cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
self.lint_groups
.iter()
.filter(|(_, LintGroup { depr, .. })| {
@ -154,7 +158,6 @@ impl LintStore {
.map(|(k, LintGroup { lint_ids, from_plugin, .. })| {
(*k, lint_ids.clone(), *from_plugin)
})
.collect()
}
pub fn register_early_pass(

View file

@ -5,10 +5,7 @@ use crate::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext}
use rustc_ast as ast;
use rustc_errors::Applicability;
use rustc_hir::def::Res;
use rustc_hir::{
GenericArg, HirId, Item, ItemKind, MutTy, Mutability, Node, Path, PathSegment, QPath, Ty,
TyKind,
};
use rustc_hir::*;
use rustc_middle::ty;
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::hygiene::{ExpnKind, MacroKind};
@ -51,6 +48,60 @@ impl LateLintPass<'_> for DefaultHashTypes {
}
}
declare_tool_lint! {
pub rustc::POTENTIAL_QUERY_INSTABILITY,
Allow,
"require explicit opt-in when using potentially unstable methods or functions",
report_in_external_macro: true
}
declare_lint_pass!(QueryStability => [POTENTIAL_QUERY_INSTABILITY]);
impl LateLintPass<'_> for QueryStability {
fn check_expr(&mut self, cx: &LateContext<'_>, expr: &Expr<'_>) {
// FIXME(rustdoc): This lint uses typecheck results, causing rustdoc to
// error if there are resolution failures.
//
// As internal lints are currently always run if there are `unstable_options`,
// they are added to the lint store of rustdoc. Internal lints are also
// not used via the `lint_mod` query. Crate lints run outside of a query
// so rustdoc currently doesn't disable them.
//
// Instead of relying on this, either change crate lints to a query disabled by
// rustdoc, only run internal lints if the user is explicitly opting in
// or figure out a different way to avoid running lints for rustdoc.
if cx.tcx.sess.opts.actually_rustdoc {
return;
}
let (def_id, span) = match expr.kind {
ExprKind::Path(ref path) if let Some(def_id) = cx.qpath_res(path, expr.hir_id).opt_def_id() => {
(def_id, expr.span)
}
ExprKind::MethodCall(_, span, _, _) if let Some(def_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id) => {
(def_id, span)
},
_ => return,
};
let substs = cx.typeck_results().node_substs(expr.hir_id);
if let Ok(Some(instance)) = ty::Instance::resolve(cx.tcx, cx.param_env, def_id, substs) {
let def_id = instance.def_id();
if cx.tcx.has_attr(def_id, sym::rustc_lint_query_instability) {
cx.struct_span_lint(POTENTIAL_QUERY_INSTABILITY, span, |lint| {
let msg = format!(
"using `{}` can result in unstable query results",
cx.tcx.item_name(def_id)
);
lint.build(&msg)
.note("if you believe this case to be fine, allow this lint and add a comment explaining your rationale")
.emit();
})
}
}
}
}
declare_tool_lint! {
pub rustc::USAGE_OF_TY_TYKIND,
Allow,

View file

@ -31,12 +31,14 @@
#![feature(box_patterns)]
#![feature(crate_visibility_modifier)]
#![feature(format_args_capture)]
#![feature(if_let_guard)]
#![feature(iter_order_by)]
#![feature(iter_zip)]
#![feature(never_type)]
#![feature(nll)]
#![feature(control_flow_enum)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_middle;
@ -484,6 +486,8 @@ fn register_internals(store: &mut LintStore) {
store.register_early_pass(|| Box::new(LintPassImpl));
store.register_lints(&DefaultHashTypes::get_lints());
store.register_late_pass(|| Box::new(DefaultHashTypes));
store.register_lints(&QueryStability::get_lints());
store.register_late_pass(|| Box::new(QueryStability));
store.register_lints(&ExistingDocKeyword::get_lints());
store.register_late_pass(|| Box::new(ExistingDocKeyword));
store.register_lints(&TyTyKind::get_lints());
@ -494,6 +498,7 @@ fn register_internals(store: &mut LintStore) {
None,
vec![
LintId::of(DEFAULT_HASH_TYPES),
LintId::of(POTENTIAL_QUERY_INSTABILITY),
LintId::of(USAGE_OF_TY_TYKIND),
LintId::of(LINT_PASS_IMPL_WITHOUT_MACRO),
LintId::of(TY_PASS_BY_REFERENCE),

View file

@ -10,6 +10,7 @@
#![feature(try_blocks)]
#![feature(never_type)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
extern crate proc_macro;

View file

@ -56,6 +56,7 @@
#![feature(try_reserve_kind)]
#![feature(nonzero_ops)]
#![recursion_limit = "512"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate bitflags;

View file

@ -10,6 +10,7 @@
#![feature(once_cell)]
#![feature(min_specialization)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -13,6 +13,7 @@
#![feature(trusted_step)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -5,6 +5,7 @@
#![feature(let_else)]
#![feature(in_band_lifetimes)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -62,7 +62,7 @@ impl CheckAttrVisitor<'tcx> {
fn check_attributes(
&self,
hir_id: HirId,
span: &Span,
span: Span,
target: Target,
item: Option<ItemLike<'_>>,
) {
@ -78,7 +78,7 @@ impl CheckAttrVisitor<'tcx> {
sym::marker => self.check_marker(hir_id, attr, span, target),
sym::target_feature => self.check_target_feature(hir_id, attr, span, target),
sym::track_caller => {
self.check_track_caller(hir_id, &attr.span, attrs, span, target)
self.check_track_caller(hir_id, attr.span, attrs, span, target)
}
sym::doc => self.check_doc_attrs(
attr,
@ -103,6 +103,9 @@ impl CheckAttrVisitor<'tcx> {
sym::rustc_legacy_const_generics => {
self.check_rustc_legacy_const_generics(&attr, span, target, item)
}
sym::rustc_lint_query_instability => {
self.check_rustc_lint_query_instability(&attr, span, target)
}
sym::rustc_clean
| sym::rustc_dirty
| sym::rustc_if_this_changed
@ -230,7 +233,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if an `#[inline]` is applied to a function or a closure. Returns `true` if valid.
fn check_inline(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) -> bool {
fn check_inline(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) -> bool {
match target {
Target::Fn
| Target::Closure
@ -273,7 +276,7 @@ impl CheckAttrVisitor<'tcx> {
E0518,
"attribute should be applied to function or closure",
)
.span_label(*span, "not a function or closure")
.span_label(span, "not a function or closure")
.emit();
false
}
@ -312,7 +315,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[naked]` is applied to a function definition.
fn check_naked(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) -> bool {
fn check_naked(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) -> bool {
match target {
Target::Fn
| Target::Method(MethodKind::Trait { body: true } | MethodKind::Inherent) => true,
@ -331,7 +334,7 @@ impl CheckAttrVisitor<'tcx> {
attr.span,
"attribute should be applied to a function definition",
)
.span_label(*span, "not a function definition")
.span_label(span, "not a function definition")
.emit();
false
}
@ -339,7 +342,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[cmse_nonsecure_entry]` is applied to a function definition.
fn check_cmse_nonsecure_entry(&self, attr: &Attribute, span: &Span, target: Target) -> bool {
fn check_cmse_nonsecure_entry(&self, attr: &Attribute, span: Span, target: Target) -> bool {
match target {
Target::Fn
| Target::Method(MethodKind::Trait { body: true } | MethodKind::Inherent) => true,
@ -350,7 +353,7 @@ impl CheckAttrVisitor<'tcx> {
attr.span,
"attribute should be applied to a function definition",
)
.span_label(*span, "not a function definition")
.span_label(span, "not a function definition")
.emit();
false
}
@ -361,16 +364,16 @@ impl CheckAttrVisitor<'tcx> {
fn check_track_caller(
&self,
hir_id: HirId,
attr_span: &Span,
attr_span: Span,
attrs: &'hir [Attribute],
span: &Span,
span: Span,
target: Target,
) -> bool {
match target {
_ if attrs.iter().any(|attr| attr.has_name(sym::naked)) => {
struct_span_err!(
self.tcx.sess,
*attr_span,
attr_span,
E0736,
"cannot use `#[track_caller]` with `#[naked]`",
)
@ -391,11 +394,11 @@ impl CheckAttrVisitor<'tcx> {
_ => {
struct_span_err!(
self.tcx.sess,
*attr_span,
attr_span,
E0739,
"attribute should be applied to function"
)
.span_label(*span, "not a function")
.span_label(span, "not a function")
.emit();
false
}
@ -407,7 +410,7 @@ impl CheckAttrVisitor<'tcx> {
&self,
hir_id: HirId,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
) -> bool {
match target {
@ -427,7 +430,7 @@ impl CheckAttrVisitor<'tcx> {
E0701,
"attribute can only be applied to a struct or enum"
)
.span_label(*span, "not a struct or enum")
.span_label(span, "not a struct or enum")
.emit();
false
}
@ -435,7 +438,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if the `#[marker]` attribute on an `item` is valid. Returns `true` if valid.
fn check_marker(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) -> bool {
fn check_marker(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) -> bool {
match target {
Target::Trait => true,
// FIXME(#80564): We permit struct fields, match arms and macro defs to have an
@ -450,7 +453,7 @@ impl CheckAttrVisitor<'tcx> {
self.tcx
.sess
.struct_span_err(attr.span, "attribute can only be applied to a trait")
.span_label(*span, "not a trait")
.span_label(span, "not a trait")
.emit();
false
}
@ -462,7 +465,7 @@ impl CheckAttrVisitor<'tcx> {
&self,
hir_id: HirId,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
) -> bool {
match target {
@ -478,7 +481,7 @@ impl CheckAttrVisitor<'tcx> {
being phased out; it will become a hard error in \
a future release!",
)
.span_label(*span, "not a function")
.span_label(span, "not a function")
.emit();
});
true
@ -495,7 +498,7 @@ impl CheckAttrVisitor<'tcx> {
self.tcx
.sess
.struct_span_err(attr.span, "attribute should be applied to a function")
.span_label(*span, "not a function")
.span_label(span, "not a function")
.emit();
false
}
@ -1047,14 +1050,14 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[must_not_suspend]` is applied to a function. Returns `true` if valid.
fn check_must_not_suspend(&self, attr: &Attribute, span: &Span, target: Target) -> bool {
fn check_must_not_suspend(&self, attr: &Attribute, span: Span, target: Target) -> bool {
match target {
Target::Struct | Target::Enum | Target::Union | Target::Trait => true,
_ => {
self.tcx
.sess
.struct_span_err(attr.span, "`must_not_suspend` attribute should be applied to a struct, enum, or trait")
.span_label(*span, "is not a struct, enum, or trait")
.span_label(span, "is not a struct, enum, or trait")
.emit();
false
}
@ -1062,7 +1065,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[cold]` is applied to a non-function. Returns `true` if valid.
fn check_cold(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) {
fn check_cold(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) {
match target {
Target::Fn | Target::Method(..) | Target::ForeignFn | Target::Closure => {}
// FIXME(#80564): We permit struct fields, match arms and macro defs to have an
@ -1082,7 +1085,7 @@ impl CheckAttrVisitor<'tcx> {
being phased out; it will become a hard error in \
a future release!",
)
.span_label(*span, "not a function")
.span_label(span, "not a function")
.emit();
});
}
@ -1090,7 +1093,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[link_name]` is applied to an item other than a foreign function or static.
fn check_link_name(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) {
fn check_link_name(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) {
match target {
Target::ForeignFn | Target::ForeignStatic => {}
// FIXME(#80564): We permit struct fields, match arms and macro defs to have an
@ -1124,7 +1127,7 @@ impl CheckAttrVisitor<'tcx> {
}
}
diag.span_label(*span, "not a foreign function or static");
diag.span_label(span, "not a foreign function or static");
diag.emit();
});
}
@ -1132,7 +1135,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[no_link]` is applied to an `extern crate`. Returns `true` if valid.
fn check_no_link(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) -> bool {
fn check_no_link(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) -> bool {
match target {
Target::ExternCrate => true,
// FIXME(#80564): We permit struct fields, match arms and macro defs to have an
@ -1150,7 +1153,7 @@ impl CheckAttrVisitor<'tcx> {
attr.span,
"attribute should be applied to an `extern crate` item",
)
.span_label(*span, "not an `extern crate` item")
.span_label(span, "not an `extern crate` item")
.emit();
false
}
@ -1166,7 +1169,7 @@ impl CheckAttrVisitor<'tcx> {
&self,
hir_id: HirId,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
) -> bool {
match target {
@ -1187,7 +1190,7 @@ impl CheckAttrVisitor<'tcx> {
attr.span,
"attribute should be applied to a free function, impl method or static",
)
.span_label(*span, "not a free function, impl method or static")
.span_label(span, "not a free function, impl method or static")
.emit();
false
}
@ -1197,14 +1200,14 @@ impl CheckAttrVisitor<'tcx> {
fn check_rustc_layout_scalar_valid_range(
&self,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
) -> bool {
if target != Target::Struct {
self.tcx
.sess
.struct_span_err(attr.span, "attribute should be applied to a struct")
.span_label(*span, "not a struct")
.span_label(span, "not a struct")
.emit();
return false;
}
@ -1229,7 +1232,7 @@ impl CheckAttrVisitor<'tcx> {
fn check_rustc_legacy_const_generics(
&self,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
item: Option<ItemLike<'_>>,
) -> bool {
@ -1238,7 +1241,7 @@ impl CheckAttrVisitor<'tcx> {
self.tcx
.sess
.struct_span_err(attr.span, "attribute should be applied to a function")
.span_label(*span, "not a function")
.span_label(span, "not a function")
.emit();
return false;
}
@ -1324,6 +1327,25 @@ impl CheckAttrVisitor<'tcx> {
}
}
fn check_rustc_lint_query_instability(
&self,
attr: &Attribute,
span: Span,
target: Target,
) -> bool {
let is_function = matches!(target, Target::Fn | Target::Method(..));
if !is_function {
self.tcx
.sess
.struct_span_err(attr.span, "attribute should be applied to a function")
.span_label(span, "not a function")
.emit();
false
} else {
true
}
}
/// Checks that the dep-graph debugging attributes are only present when the query-dep-graph
/// option is passed to the compiler.
fn check_rustc_dirty_clean(&self, attr: &Attribute) -> bool {
@ -1339,7 +1361,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[link_section]` is applied to a function or static.
fn check_link_section(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) {
fn check_link_section(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) {
match target {
Target::Static | Target::Fn | Target::Method(..) => {}
// FIXME(#80564): We permit struct fields, match arms and macro defs to have an
@ -1359,7 +1381,7 @@ impl CheckAttrVisitor<'tcx> {
being phased out; it will become a hard error in \
a future release!",
)
.span_label(*span, "not a function or static")
.span_label(span, "not a function or static")
.emit();
});
}
@ -1367,7 +1389,7 @@ impl CheckAttrVisitor<'tcx> {
}
/// Checks if `#[no_mangle]` is applied to a function or static.
fn check_no_mangle(&self, hir_id: HirId, attr: &Attribute, span: &Span, target: Target) {
fn check_no_mangle(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) {
match target {
Target::Static | Target::Fn => {}
Target::Method(..) if self.is_impl_item(hir_id) => {}
@ -1397,7 +1419,7 @@ impl CheckAttrVisitor<'tcx> {
being phased out; it will become a hard error in \
a future release!",
)
.span_label(*span, format!("foreign {}", foreign_item_kind))
.span_label(span, format!("foreign {}", foreign_item_kind))
.note("symbol names in extern blocks are not mangled")
.span_suggestion(
attr.span,
@ -1420,7 +1442,7 @@ impl CheckAttrVisitor<'tcx> {
being phased out; it will become a hard error in \
a future release!",
)
.span_label(*span, "not a free function, impl method or static")
.span_label(span, "not a free function, impl method or static")
.emit();
});
}
@ -1431,7 +1453,7 @@ impl CheckAttrVisitor<'tcx> {
fn check_repr(
&self,
attrs: &'hir [Attribute],
span: &Span,
span: Span,
target: Target,
item: Option<ItemLike<'_>>,
hir_id: HirId,
@ -1565,7 +1587,7 @@ impl CheckAttrVisitor<'tcx> {
"{}",
&format!("attribute should be applied to {} {}", article, allowed_targets)
)
.span_label(*span, &format!("not {} {}", article, allowed_targets))
.span_label(span, &format!("not {} {}", article, allowed_targets))
.emit();
}
@ -1628,7 +1650,7 @@ impl CheckAttrVisitor<'tcx> {
&self,
hir_id: HirId,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
attrs: &[Attribute],
) -> bool {
@ -1661,7 +1683,7 @@ impl CheckAttrVisitor<'tcx> {
self.tcx
.sess
.struct_span_err(attr.span, "attribute should be applied to a macro")
.span_label(*span, "not a macro")
.span_label(span, "not a macro")
.emit();
false
}
@ -1674,7 +1696,7 @@ impl CheckAttrVisitor<'tcx> {
&self,
hir_id: HirId,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
) -> bool {
match target {
@ -1695,7 +1717,7 @@ impl CheckAttrVisitor<'tcx> {
self.tcx
.sess
.struct_span_err(attr.span, "attribute should be applied to `const fn`")
.span_label(*span, "not a `const fn`")
.span_label(span, "not a `const fn`")
.emit();
false
}
@ -1706,7 +1728,7 @@ impl CheckAttrVisitor<'tcx> {
fn check_default_method_body_is_const(
&self,
attr: &Attribute,
span: &Span,
span: Span,
target: Target,
) -> bool {
match target {
@ -1718,14 +1740,14 @@ impl CheckAttrVisitor<'tcx> {
attr.span,
"attribute should be applied to a trait method with body",
)
.span_label(*span, "not a trait method or missing a body")
.span_label(span, "not a trait method or missing a body")
.emit();
false
}
}
}
fn check_stability_promotable(&self, attr: &Attribute, _span: &Span, target: Target) -> bool {
fn check_stability_promotable(&self, attr: &Attribute, _span: Span, target: Target) -> bool {
match target {
Target::Expression => {
self.tcx
@ -1738,7 +1760,7 @@ impl CheckAttrVisitor<'tcx> {
}
}
fn check_deprecated(&self, hir_id: HirId, attr: &Attribute, _span: &Span, target: Target) {
fn check_deprecated(&self, hir_id: HirId, attr: &Attribute, _span: Span, target: Target) {
match target {
Target::Closure | Target::Expression | Target::Statement | Target::Arm => {
self.tcx.struct_span_lint_hir(UNUSED_ATTRIBUTES, hir_id, attr.span, |lint| {
@ -1810,29 +1832,29 @@ impl Visitor<'tcx> for CheckAttrVisitor<'tcx> {
}
let target = Target::from_item(item);
self.check_attributes(item.hir_id(), &item.span, target, Some(ItemLike::Item(item)));
self.check_attributes(item.hir_id(), item.span, target, Some(ItemLike::Item(item)));
intravisit::walk_item(self, item)
}
fn visit_generic_param(&mut self, generic_param: &'tcx hir::GenericParam<'tcx>) {
let target = Target::from_generic_param(generic_param);
self.check_attributes(generic_param.hir_id, &generic_param.span, target, None);
self.check_attributes(generic_param.hir_id, generic_param.span, target, None);
intravisit::walk_generic_param(self, generic_param)
}
fn visit_trait_item(&mut self, trait_item: &'tcx TraitItem<'tcx>) {
let target = Target::from_trait_item(trait_item);
self.check_attributes(trait_item.hir_id(), &trait_item.span, target, None);
self.check_attributes(trait_item.hir_id(), trait_item.span, target, None);
intravisit::walk_trait_item(self, trait_item)
}
fn visit_field_def(&mut self, struct_field: &'tcx hir::FieldDef<'tcx>) {
self.check_attributes(struct_field.hir_id, &struct_field.span, Target::Field, None);
self.check_attributes(struct_field.hir_id, struct_field.span, Target::Field, None);
intravisit::walk_field_def(self, struct_field);
}
fn visit_arm(&mut self, arm: &'tcx hir::Arm<'tcx>) {
self.check_attributes(arm.hir_id, &arm.span, Target::Arm, None);
self.check_attributes(arm.hir_id, arm.span, Target::Arm, None);
intravisit::walk_arm(self, arm);
}
@ -1840,7 +1862,7 @@ impl Visitor<'tcx> for CheckAttrVisitor<'tcx> {
let target = Target::from_foreign_item(f_item);
self.check_attributes(
f_item.hir_id(),
&f_item.span,
f_item.span,
target,
Some(ItemLike::ForeignItem(f_item)),
);
@ -1849,14 +1871,14 @@ impl Visitor<'tcx> for CheckAttrVisitor<'tcx> {
fn visit_impl_item(&mut self, impl_item: &'tcx hir::ImplItem<'tcx>) {
let target = target_from_impl_item(self.tcx, impl_item);
self.check_attributes(impl_item.hir_id(), &impl_item.span, target, None);
self.check_attributes(impl_item.hir_id(), impl_item.span, target, None);
intravisit::walk_impl_item(self, impl_item)
}
fn visit_stmt(&mut self, stmt: &'tcx hir::Stmt<'tcx>) {
// When checking statements ignore expressions, they will be checked later.
if let hir::StmtKind::Local(ref l) = stmt.kind {
self.check_attributes(l.hir_id, &stmt.span, Target::Statement, None);
self.check_attributes(l.hir_id, stmt.span, Target::Statement, None);
}
intravisit::walk_stmt(self, stmt)
}
@ -1867,7 +1889,7 @@ impl Visitor<'tcx> for CheckAttrVisitor<'tcx> {
_ => Target::Expression,
};
self.check_attributes(expr.hir_id, &expr.span, target, None);
self.check_attributes(expr.hir_id, expr.span, target, None);
intravisit::walk_expr(self, expr)
}
@ -1877,12 +1899,12 @@ impl Visitor<'tcx> for CheckAttrVisitor<'tcx> {
generics: &'tcx hir::Generics<'tcx>,
item_id: HirId,
) {
self.check_attributes(variant.id, &variant.span, Target::Variant, None);
self.check_attributes(variant.id, variant.span, Target::Variant, None);
intravisit::walk_variant(self, variant, generics, item_id)
}
fn visit_param(&mut self, param: &'tcx hir::Param<'tcx>) {
self.check_attributes(param.hir_id, &param.span, Target::Param, None);
self.check_attributes(param.hir_id, param.span, Target::Param, None);
intravisit::walk_param(self, param);
}
@ -1950,7 +1972,7 @@ fn check_mod_attrs(tcx: TyCtxt<'_>, module_def_id: LocalDefId) {
let check_attr_visitor = &mut CheckAttrVisitor { tcx };
tcx.hir().visit_item_likes_in_module(module_def_id, &mut check_attr_visitor.as_deep_visitor());
if module_def_id.is_top_level_module() {
check_attr_visitor.check_attributes(CRATE_HIR_ID, &DUMMY_SP, Target::Mod, None);
check_attr_visitor.check_attributes(CRATE_HIR_ID, DUMMY_SP, Target::Mod, None);
check_invalid_crate_level_attr(tcx, tcx.hir().krate_attrs());
}
}

View file

@ -14,6 +14,7 @@
#![feature(nll)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_middle;

View file

@ -5,6 +5,7 @@
#![feature(try_blocks)]
#![feature(associated_type_defaults)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
use rustc_ast::MacroDef;
use rustc_attr as attr;

View file

@ -8,6 +8,7 @@
#![feature(once_cell)]
#![feature(rustc_attrs)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -6,6 +6,7 @@
#![feature(let_else)]
#![feature(min_specialization)]
#![feature(thread_local_const_init)]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -20,6 +20,7 @@
#![feature(nll)]
#![recursion_limit = "256"]
#![allow(rustdoc::private_intra_doc_links)]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -2,6 +2,7 @@
#![feature(if_let_guard)]
#![feature(nll)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
mod dump_visitor;
mod dumper;

View file

@ -2,6 +2,7 @@
#![feature(min_specialization)]
#![feature(once_cell)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -21,6 +21,7 @@
#![feature(nll)]
#![feature(min_specialization)]
#![feature(thread_local_const_init)]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -1114,6 +1114,7 @@ symbols! {
rustc_layout_scalar_valid_range_end,
rustc_layout_scalar_valid_range_start,
rustc_legacy_const_generics,
rustc_lint_query_instability,
rustc_macro_transparency,
rustc_main,
rustc_mir,

View file

@ -93,6 +93,7 @@
#![feature(in_band_lifetimes)]
#![feature(iter_zip)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_middle;

View file

@ -22,6 +22,7 @@
#![feature(crate_visibility_modifier)]
#![feature(control_flow_enum)]
#![recursion_limit = "512"] // For rustdoc
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate rustc_macros;

View file

@ -830,6 +830,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
self.tcx.type_of(def_id)
};
let substs = self.infcx.fresh_substs_for_item(span, def_id);
self.write_substs(hir_id, substs);
let ty = item_ty.subst(self.tcx, substs);
self.write_resolution(hir_id, Ok((def_kind, def_id)));

View file

@ -420,7 +420,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
..
},
method,
)) if Some(recv_ty.def_id()) == pin_did && method.ident.name == sym::new => {
)) if recv_ty.opt_def_id() == pin_did && method.ident.name == sym::new => {
err.span_suggestion(
fn_name.span,
"use `Box::pin` to pin and box this expression",

View file

@ -71,6 +71,7 @@ This API is completely unstable and subject to change.
#![feature(slice_partition_dedup)]
#![feature(control_flow_enum)]
#![recursion_limit = "256"]
#![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
#[macro_use]
extern crate tracing;

View file

@ -85,14 +85,16 @@ where
/// Converts a reference to `T` into a reference to an array of length 1 (without copying).
#[stable(feature = "array_from_ref", since = "1.53.0")]
pub fn from_ref<T>(s: &T) -> &[T; 1] {
#[rustc_const_unstable(feature = "const_array_from_ref", issue = "90206")]
pub const fn from_ref<T>(s: &T) -> &[T; 1] {
// SAFETY: Converting `&T` to `&[T; 1]` is sound.
unsafe { &*(s as *const T).cast::<[T; 1]>() }
}
/// Converts a mutable reference to `T` into a mutable reference to an array of length 1 (without copying).
#[stable(feature = "array_from_ref", since = "1.53.0")]
pub fn from_mut<T>(s: &mut T) -> &mut [T; 1] {
#[rustc_const_unstable(feature = "const_array_from_ref", issue = "90206")]
pub const fn from_mut<T>(s: &mut T) -> &mut [T; 1] {
// SAFETY: Converting `&mut T` to `&mut [T; 1]` is sound.
unsafe { &mut *(s as *mut T).cast::<[T; 1]>() }
}

View file

@ -136,6 +136,8 @@
#![feature(ptr_metadata)]
#![feature(slice_ptr_get)]
#![feature(variant_count)]
#![feature(const_array_from_ref)]
#![feature(const_slice_from_ref)]
//
// Language features:
#![feature(abi_unadjusted)]

View file

@ -138,12 +138,14 @@ pub unsafe fn from_raw_parts_mut<'a, T>(data: *mut T, len: usize) -> &'a mut [T]
/// Converts a reference to T into a slice of length 1 (without copying).
#[stable(feature = "from_ref", since = "1.28.0")]
pub fn from_ref<T>(s: &T) -> &[T] {
#[rustc_const_unstable(feature = "const_slice_from_ref", issue = "90206")]
pub const fn from_ref<T>(s: &T) -> &[T] {
array::from_ref(s)
}
/// Converts a reference to T into a slice of length 1 (without copying).
#[stable(feature = "from_ref", since = "1.28.0")]
pub fn from_mut<T>(s: &mut T) -> &mut [T] {
#[rustc_const_unstable(feature = "const_slice_from_ref", issue = "90206")]
pub const fn from_mut<T>(s: &mut T) -> &mut [T] {
array::from_mut(s)
}

View file

@ -7,6 +7,11 @@ fn array_from_ref() {
let value: String = "Hello World!".into();
let arr: &[String; 1] = array::from_ref(&value);
assert_eq!(&[value.clone()], arr);
const VALUE: &&str = &"Hello World!";
const ARR: &[&str; 1] = array::from_ref(VALUE);
assert_eq!(&[*VALUE], ARR);
assert!(core::ptr::eq(VALUE, &ARR[0]));
}
#[test]

View file

@ -74,6 +74,8 @@
#![feature(trusted_random_access)]
#![feature(unsize)]
#![feature(unzip_option)]
#![feature(const_array_from_ref)]
#![feature(const_slice_from_ref)]
#![deny(unsafe_op_in_unsafe_fn)]
extern crate test;

View file

@ -2146,6 +2146,14 @@ fn test_slice_run_destructors() {
assert_eq!(x.get(), 1);
}
#[test]
fn test_const_from_ref() {
const VALUE: &i32 = &1;
const SLICE: &[i32] = core::slice::from_ref(VALUE);
assert!(core::ptr::eq(VALUE, &SLICE[0]))
}
#[test]
fn test_slice_fill_with_uninit() {
// This should not UB. See #87891

View file

@ -414,6 +414,7 @@ impl<K, V, S> HashMap<K, V, S> {
/// println!("key: {} val: {}", key, val);
/// }
/// ```
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn iter(&self) -> Iter<'_, K, V> {
Iter { base: self.base.iter() }
@ -442,6 +443,7 @@ impl<K, V, S> HashMap<K, V, S> {
/// println!("key: {} val: {}", key, val);
/// }
/// ```
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn iter_mut(&mut self) -> IterMut<'_, K, V> {
IterMut { base: self.base.iter_mut() }
@ -502,6 +504,7 @@ impl<K, V, S> HashMap<K, V, S> {
/// assert!(a.is_empty());
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "drain", since = "1.6.0")]
pub fn drain(&mut self) -> Drain<'_, K, V> {
Drain { base: self.base.drain() }
@ -543,6 +546,7 @@ impl<K, V, S> HashMap<K, V, S> {
/// assert_eq!(odds, vec![1, 3, 5, 7]);
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[unstable(feature = "hash_drain_filter", issue = "59618")]
pub fn drain_filter<F>(&mut self, pred: F) -> DrainFilter<'_, K, V, F>
where
@ -949,6 +953,7 @@ where
/// assert_eq!(map.len(), 4);
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "retain_hash_collection", since = "1.18.0")]
pub fn retain<F>(&mut self, f: F)
where
@ -978,6 +983,7 @@ where
/// assert_eq!(vec, ["a", "b", "c"]);
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub fn into_keys(self) -> IntoKeys<K, V> {
IntoKeys { inner: self.into_iter() }
@ -1004,6 +1010,7 @@ where
/// assert_eq!(vec, [1, 2, 3]);
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub fn into_values(self) -> IntoValues<K, V> {
IntoValues { inner: self.into_iter() }
@ -1969,6 +1976,7 @@ impl<'a, K, V, S> IntoIterator for &'a HashMap<K, V, S> {
type IntoIter = Iter<'a, K, V>;
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
fn into_iter(self) -> Iter<'a, K, V> {
self.iter()
}
@ -1980,6 +1988,7 @@ impl<'a, K, V, S> IntoIterator for &'a mut HashMap<K, V, S> {
type IntoIter = IterMut<'a, K, V>;
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
fn into_iter(self) -> IterMut<'a, K, V> {
self.iter_mut()
}
@ -2008,6 +2017,7 @@ impl<K, V, S> IntoIterator for HashMap<K, V, S> {
/// let vec: Vec<(&str, i32)> = map.into_iter().collect();
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
fn into_iter(self) -> IntoIter<K, V> {
IntoIter { base: self.base.into_iter() }
}

View file

@ -185,6 +185,7 @@ impl<T, S> HashSet<T, S> {
/// }
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn iter(&self) -> Iter<'_, T> {
Iter { base: self.base.iter() }
@ -244,6 +245,7 @@ impl<T, S> HashSet<T, S> {
/// assert!(set.is_empty());
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "drain", since = "1.6.0")]
pub fn drain(&mut self) -> Drain<'_, T> {
Drain { base: self.base.drain() }
@ -282,6 +284,7 @@ impl<T, S> HashSet<T, S> {
/// assert_eq!(odds, vec![1, 3, 5, 7]);
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[unstable(feature = "hash_drain_filter", issue = "59618")]
pub fn drain_filter<F>(&mut self, pred: F) -> DrainFilter<'_, T, F>
where
@ -506,6 +509,7 @@ where
/// assert_eq!(diff, [4].iter().collect());
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn difference<'a>(&'a self, other: &'a HashSet<T, S>) -> Difference<'a, T, S> {
Difference { iter: self.iter(), other }
@ -533,6 +537,7 @@ where
/// assert_eq!(diff1, [1, 4].iter().collect());
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn symmetric_difference<'a>(
&'a self,
@ -560,6 +565,7 @@ where
/// assert_eq!(intersection, [2, 3].iter().collect());
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn intersection<'a>(&'a self, other: &'a HashSet<T, S>) -> Intersection<'a, T, S> {
if self.len() <= other.len() {
@ -588,6 +594,7 @@ where
/// assert_eq!(union, [1, 2, 3, 4].iter().collect());
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn union<'a>(&'a self, other: &'a HashSet<T, S>) -> Union<'a, T, S> {
if self.len() >= other.len() {
@ -922,6 +929,7 @@ where
/// set.retain(|&k| k % 2 == 0);
/// assert_eq!(set.len(), 3);
/// ```
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
#[stable(feature = "retain_hash_collection", since = "1.18.0")]
pub fn retain<F>(&mut self, f: F)
where
@ -1403,6 +1411,7 @@ impl<'a, T, S> IntoIterator for &'a HashSet<T, S> {
type IntoIter = Iter<'a, T>;
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
fn into_iter(self) -> Iter<'a, T> {
self.iter()
}
@ -1434,6 +1443,7 @@ impl<T, S> IntoIterator for HashSet<T, S> {
/// }
/// ```
#[inline]
#[cfg_attr(not(bootstrap), rustc_lint_query_instability)]
fn into_iter(self) -> IntoIter<T> {
IntoIter { base: self.base.into_iter() }
}

View file

@ -448,9 +448,11 @@ jobs:
# macOS Builders #
####################
# Only generate documentation for x86_64-apple-darwin, not other
# tier 2 targets produced by this builder.
- name: dist-x86_64-apple
env:
SCRIPT: ./x.py dist
SCRIPT: ./x.py dist --exclude src/doc --exclude extended && ./x.py dist --target=x86_64-apple-darwin src/doc && ./x.py dist extended
RUST_CONFIGURE_ARGS: --host=x86_64-apple-darwin --target=x86_64-apple-darwin,aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false
RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
MACOSX_DEPLOYMENT_TARGET: 10.7
@ -670,7 +672,17 @@ jobs:
strategy:
matrix:
include:
- *dist-x86_64-linux
- name: dist-x86_64-apple
env:
SCRIPT: ./x.py dist --exclude src/doc --exclude extended && ./x.py dist --target=x86_64-apple-darwin src/doc && ./x.py dist extended
RUST_CONFIGURE_ARGS: --host=x86_64-apple-darwin --target=x86_64-apple-darwin,aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false
RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
MACOSX_DEPLOYMENT_TARGET: 10.7
NO_LLVM_ASSERTIONS: 1
NO_DEBUG_ASSERTIONS: 1
DIST_REQUIRE_ALL_TOOLS: 1
<<: *job-macos-xl
master:
name: master

View file

@ -43,7 +43,7 @@ else
PYTHON="python2"
fi
if ! isCI || isCiBranch auto || isCiBranch beta; then
if ! isCI || isCiBranch auto || isCiBranch beta || isCiBranch try; then
RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set build.print-step-timings --enable-verbose-tests"
fi

View file

@ -152,10 +152,15 @@ h1.fqn > .in-band > a:hover {
h2, h3, h4 {
border-bottom: 1px solid;
}
h3.code-header, h4.code-header {
h3.code-header {
font-size: 1.1em;
}
h4.code-header {
font-size: 1em;
}
h3.code-header, h4.code-header {
font-weight: 600;
border: none;
border-bottom-style: none;
padding: 0;
margin: 0;
}
@ -174,12 +179,6 @@ h3.code-header, h4.code-header {
margin-bottom: 10px;
position: relative;
}
.impl, .method.trait-impl,
.type.trait-impl,
.associatedconstant.trait-impl,
.associatedtype.trait-impl {
padding-left: 15px;
}
div.impl-items > div {
padding-left: 0;
@ -674,13 +673,6 @@ nav.sub {
left: -19px;
}
.content .impl-items .method, .content .impl-items > .type, .impl-items > .associatedconstant,
.impl-items > .associatedtype, .content .impl-items details > summary > .type,
.impl-items details > summary > .associatedconstant,
.impl-items details > summary > .associatedtype {
margin-left: 20px;
}
.content .impl-items .docblock, .content .impl-items .item-info {
margin-bottom: .6em;
}
@ -751,7 +743,7 @@ a {
.anchor {
display: none;
position: absolute;
left: 0;
left: -0.5em;
background: none !important;
}
.anchor.field {
@ -1584,14 +1576,14 @@ details.rustdoc-toggle > summary.hideme::before {
details.rustdoc-toggle > summary:not(.hideme)::before {
position: absolute;
left: -23px;
left: -24px;
top: 3px;
}
.impl-items > details.rustdoc-toggle > summary:not(.hideme)::before,
.undocumented > details.rustdoc-toggle > summary:not(.hideme)::before {
position: absolute;
left: -2px;
left: -24px;
}
/* When a "hideme" summary is open and the "Expand description" or "Show

View file

@ -0,0 +1,11 @@
// The `impl Foo` heading underneath `Implementations` has a §
// anchor to its left (used for linking to that heading). The anchor only shows
// up when hovering the `impl Foo`. This test ensures there's no gap between the
// anchor and the `impl Foo`. If there were a gap, this would cause an annoying
// problem: you hover `impl Foo` to see the anchor, then when you move your
// mouse to the left, the anchor disappears before you reach it.
goto: file://|DOC_PATH|/test_docs/struct.Foo.html
// We check that ".item-info" is bigger than its content.
move-cursor-to: ".impl"
assert-property: (".impl > a.anchor", {"offsetWidth": "9"})
assert-css: (".impl > a.anchor", {"left": "-8px"})

View file

@ -0,0 +1,24 @@
// compile-flags: -Z unstable-options
#![feature(rustc_private)]
#![deny(rustc::potential_query_instability)]
extern crate rustc_data_structures;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
fn main() {
let mut x = FxHashMap::<u32, i32>::default();
for _ in x.drain() {}
//~^ ERROR using `drain` can result in unstable
for _ in x.iter() {}
//~^ ERROR using `iter`
for _ in Some(&mut x).unwrap().iter_mut() {}
//~^ ERROR using `iter_mut`
for _ in x {}
//~^ ERROR using `into_iter`
}

View file

@ -0,0 +1,39 @@
error: using `drain` can result in unstable query results
--> $DIR/query_stability.rs:13:16
|
LL | for _ in x.drain() {}
| ^^^^^
|
note: the lint level is defined here
--> $DIR/query_stability.rs:4:9
|
LL | #![deny(rustc::potential_query_instability)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale
error: using `iter` can result in unstable query results
--> $DIR/query_stability.rs:16:16
|
LL | for _ in x.iter() {}
| ^^^^
|
= note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale
error: using `iter_mut` can result in unstable query results
--> $DIR/query_stability.rs:19:36
|
LL | for _ in Some(&mut x).unwrap().iter_mut() {}
| ^^^^^^^^
|
= note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale
error: using `into_iter` can result in unstable query results
--> $DIR/query_stability.rs:22:14
|
LL | for _ in x {}
| ^
|
= note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale
error: aborting due to 4 previous errors

View file

@ -0,0 +1,15 @@
// compile-flags: -Z unstable-options
#![feature(rustc_attrs)]
#[rustc_lint_query_instability]
//~^ ERROR attribute should be applied to a function
struct Foo;
impl Foo {
#[rustc_lint_query_instability(a)]
//~^ ERROR malformed `rustc_lint_query_instability`
fn bar() {}
}
fn main() {}

View file

@ -0,0 +1,17 @@
error: malformed `rustc_lint_query_instability` attribute input
--> $DIR/query_stability_incorrect.rs:10:5
|
LL | #[rustc_lint_query_instability(a)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[rustc_lint_query_instability]`
error: attribute should be applied to a function
--> $DIR/query_stability_incorrect.rs:5:1
|
LL | #[rustc_lint_query_instability]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |
LL | struct Foo;
| ----------- not a function
error: aborting due to 2 previous errors

View file

@ -0,0 +1,13 @@
// Checks that we do not ICE when comparing `Self` to `Pin`
// edition:2021
struct S;
impl S {
fn foo(_: Box<Option<S>>) {}
fn bar() {
Self::foo(None) //~ ERROR mismatched types
}
}
fn main() {}

View file

@ -0,0 +1,17 @@
error[E0308]: mismatched types
--> $DIR/issue-90213-expected-boxfuture-self-ice.rs:9:19
|
LL | Self::foo(None)
| ^^^^ expected struct `Box`, found enum `Option`
|
= note: expected struct `Box<Option<S>>`
found enum `Option<_>`
= note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html
help: store this in the heap by calling `Box::new`
|
LL | Self::foo(Box::new(None))
| +++++++++ +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0308`.