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bors 2023-01-27 19:31:37 +00:00
commit 1480cea393
29 changed files with 108 additions and 90 deletions
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2
Cargo.toml
View file

@ -1,6 +1,6 @@
[package]
name = "clippy"
version = "0.1.68"
version = "0.1.69"
description = "A bunch of helpful lints to avoid common pitfalls in Rust"
repository = "https://github.com/rust-lang/rust-clippy"
readme = "README.md"

2
clippy_lints/Cargo.toml
View file

@ -1,6 +1,6 @@
[package]
name = "clippy_lints"
version = "0.1.68"
version = "0.1.69"
description = "A bunch of helpful lints to avoid common pitfalls in Rust"
repository = "https://github.com/rust-lang/rust-clippy"
readme = "README.md"

2
clippy_lints/src/attrs.rs
View file

@ -472,7 +472,7 @@ fn check_clippy_lint_names(cx: &LateContext<'_>, name: Symbol, items: &[NestedMe
fn check_lint_reason(cx: &LateContext<'_>, name: Symbol, items: &[NestedMetaItem], attr: &'_ Attribute) {
// Check for the feature
if !cx.tcx.sess.features_untracked().lint_reasons {
if !cx.tcx.features().lint_reasons {
return;
}

4
clippy_lints/src/derive.rs
View file

@ -251,7 +251,7 @@ fn check_hash_peq<'tcx>(
// Only care about `impl PartialEq<Foo> for Foo`
// For `impl PartialEq<B> for A, input_types is [A, B]
if trait_ref.substs.type_at(1) == ty {
if trait_ref.subst_identity().substs.type_at(1) == ty {
span_lint_and_then(
cx,
DERIVED_HASH_WITH_MANUAL_EQ,
@ -299,7 +299,7 @@ fn check_ord_partial_ord<'tcx>(
// Only care about `impl PartialOrd<Foo> for Foo`
// For `impl PartialOrd<B> for A, input_types is [A, B]
if trait_ref.substs.type_at(1) == ty {
if trait_ref.subst_identity().substs.type_at(1) == ty {
let mess = if partial_ord_is_automatically_derived {
"you are implementing `Ord` explicitly but have derived `PartialOrd`"
} else {

2
clippy_lints/src/fallible_impl_from.rs
View file

@ -56,7 +56,7 @@ impl<'tcx> LateLintPass<'tcx> for FallibleImplFrom {
if_chain! {
if let hir::ItemKind::Impl(impl_) = &item.kind;
if let Some(impl_trait_ref) = cx.tcx.impl_trait_ref(item.owner_id);
if cx.tcx.is_diagnostic_item(sym::From, impl_trait_ref.def_id);
if cx.tcx.is_diagnostic_item(sym::From, impl_trait_ref.skip_binder().def_id);
then {
lint_impl_body(cx, item.span, impl_.items);
}

6
clippy_lints/src/format_args.rs
View file

@ -7,14 +7,14 @@ use clippy_utils::macros::{
};
use clippy_utils::msrvs::{self, Msrv};
use clippy_utils::source::snippet_opt;
use clippy_utils::ty::{implements_trait, is_type_diagnostic_item};
use clippy_utils::ty::{implements_trait, is_type_lang_item};
use if_chain::if_chain;
use itertools::Itertools;
use rustc_errors::{
Applicability,
SuggestionStyle::{CompletelyHidden, ShowCode},
};
use rustc_hir::{Expr, ExprKind, HirId, QPath};
use rustc_hir::{Expr, ExprKind, HirId, LangItem, QPath};
use rustc_lint::{LateContext, LateLintPass, LintContext};
use rustc_middle::ty::adjustment::{Adjust, Adjustment};
use rustc_middle::ty::Ty;
@ -237,7 +237,7 @@ fn check_unused_format_specifier(cx: &LateContext<'_>, arg: &FormatArg<'_>) {
);
}
if is_type_diagnostic_item(cx, param_ty, sym::Arguments) && !arg.format.is_default_for_trait() {
if is_type_lang_item(cx, param_ty, LangItem::FormatArguments) && !arg.format.is_default_for_trait() {
span_lint_and_then(
cx,
UNUSED_FORMAT_SPECS,

2
clippy_lints/src/from_over_into.rs
View file

@ -76,7 +76,7 @@ impl<'tcx> LateLintPass<'tcx> for FromOverInto {
&& let Some(into_trait_seg) = hir_trait_ref.path.segments.last()
// `impl Into<target_ty> for self_ty`
&& let Some(GenericArgs { args: [GenericArg::Type(target_ty)], .. }) = into_trait_seg.args
&& let Some(middle_trait_ref) = cx.tcx.impl_trait_ref(item.owner_id)
&& let Some(middle_trait_ref) = cx.tcx.impl_trait_ref(item.owner_id).map(ty::EarlyBinder::subst_identity)
&& cx.tcx.is_diagnostic_item(sym::Into, middle_trait_ref.def_id)
&& !matches!(middle_trait_ref.substs.type_at(1).kind(), ty::Alias(ty::Opaque, _))
{

3
clippy_lints/src/future_not_send.rs
View file

@ -78,7 +78,8 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend {
let send_trait = cx.tcx.get_diagnostic_item(sym::Send).unwrap();
let span = decl.output.span();
let infcx = cx.tcx.infer_ctxt().build();
let cause = traits::ObligationCause::misc(span, hir_id);
let def_id = cx.tcx.hir().local_def_id(hir_id);
let cause = traits::ObligationCause::misc(span, def_id);
let send_errors = traits::fully_solve_bound(&infcx, cause, cx.param_env, ret_ty, send_trait);
if !send_errors.is_empty() {
span_lint_and_then(

12
clippy_lints/src/inherent_impl.rs
View file

@ -52,12 +52,11 @@ impl<'tcx> LateLintPass<'tcx> for MultipleInherentImpl {
// List of spans to lint. (lint_span, first_span)
let mut lint_spans = Vec::new();
for (_, impl_ids) in cx
let inherent_impls = cx
.tcx
.crate_inherent_impls(())
.inherent_impls
.iter()
.filter(|(&id, impls)| {
.with_stable_hashing_context(|hcx| cx.tcx.crate_inherent_impls(()).inherent_impls.to_sorted(&hcx, true));
for (_, impl_ids) in inherent_impls.into_iter().filter(|(&id, impls)| {
impls.len() > 1
// Check for `#[allow]` on the type definition
&& !is_lint_allowed(
@ -65,8 +64,7 @@ impl<'tcx> LateLintPass<'tcx> for MultipleInherentImpl {
MULTIPLE_INHERENT_IMPL,
cx.tcx.hir().local_def_id_to_hir_id(id),
)
})
{
}) {
for impl_id in impl_ids.iter().map(|id| id.expect_local()) {
match type_map.entry(cx.tcx.type_of(impl_id)) {
Entry::Vacant(e) => {

2
clippy_lints/src/len_zero.rs
View file

@ -219,7 +219,7 @@ fn check_trait_items(cx: &LateContext<'_>, visited_trait: &Item<'_>, trait_items
let is_empty = sym!(is_empty);
let is_empty_method_found = current_and_super_traits
.iter()
.items()
.flat_map(|&i| cx.tcx.associated_items(i).filter_by_name_unhygienic(is_empty))
.any(|i| {
i.kind == ty::AssocKind::Fn

2
clippy_lints/src/loops/while_immutable_condition.rs
View file

@ -35,7 +35,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, cond: &'tcx Expr<'_>, expr: &'
} else {
return;
};
let mutable_static_in_cond = var_visitor.def_ids.iter().any(|(_, v)| *v);
let mutable_static_in_cond = var_visitor.def_ids.items().any(|(_, v)| *v);
let mut has_break_or_return_visitor = HasBreakOrReturnVisitor {
has_break_or_return: false,

2
clippy_lints/src/methods/unnecessary_to_owned.rs
View file

@ -371,7 +371,7 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty<
&& let output_ty = return_ty(cx, item.hir_id())
&& let local_def_id = cx.tcx.hir().local_def_id(item.hir_id())
&& Inherited::build(cx.tcx, local_def_id).enter(|inherited| {
let fn_ctxt = FnCtxt::new(inherited, cx.param_env, item.hir_id());
let fn_ctxt = FnCtxt::new(inherited, cx.param_env, local_def_id);
fn_ctxt.can_coerce(ty, output_ty)
}) {
if has_lifetime(output_ty) && has_lifetime(ty) {

2
clippy_lints/src/missing_inline.rs
View file

@ -155,7 +155,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline {
let container_id = assoc_item.container_id(cx.tcx);
let trait_def_id = match assoc_item.container {
TraitContainer => Some(container_id),
ImplContainer => cx.tcx.impl_trait_ref(container_id).map(|t| t.def_id),
ImplContainer => cx.tcx.impl_trait_ref(container_id).map(|t| t.skip_binder().def_id),
};
if let Some(trait_def_id) = trait_def_id {

4
clippy_lints/src/missing_trait_methods.rs
View file

@ -80,7 +80,8 @@ impl<'tcx> LateLintPass<'tcx> for MissingTraitMethods {
}
}
for assoc in provided.values() {
cx.tcx.with_stable_hashing_context(|hcx| {
for assoc in provided.values_sorted(&hcx, true) {
let source_map = cx.tcx.sess.source_map();
let definition_span = source_map.guess_head_span(cx.tcx.def_span(assoc.def_id));
@ -93,6 +94,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingTraitMethods {
"implement the method",
);
}
});
}
}
}

4
clippy_lints/src/needless_pass_by_value.rs
View file

@ -24,7 +24,7 @@ use rustc_span::symbol::kw;
use rustc_span::{sym, Span};
use rustc_target::spec::abi::Abi;
use rustc_trait_selection::traits;
use rustc_trait_selection::traits::misc::can_type_implement_copy;
use rustc_trait_selection::traits::misc::type_allowed_to_implement_copy;
use std::borrow::Cow;
declare_clippy_lint! {
@ -200,7 +200,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
let sugg = |diag: &mut Diagnostic| {
if let ty::Adt(def, ..) = ty.kind() {
if let Some(span) = cx.tcx.hir().span_if_local(def.did()) {
if can_type_implement_copy(
if type_allowed_to_implement_copy(
cx.tcx,
cx.param_env,
ty,

2
clippy_lints/src/non_send_fields_in_send_ty.rs
View file

@ -90,7 +90,7 @@ impl<'tcx> LateLintPass<'tcx> for NonSendFieldInSendTy {
if send_trait == trait_id;
if hir_impl.polarity == ImplPolarity::Positive;
if let Some(ty_trait_ref) = cx.tcx.impl_trait_ref(item.owner_id);
if let self_ty = ty_trait_ref.self_ty();
if let self_ty = ty_trait_ref.subst_identity().self_ty();
if let ty::Adt(adt_def, impl_trait_substs) = self_ty.kind();
then {
let mut non_send_fields = Vec::new();

4
clippy_lints/src/only_used_in_recursion.rs
View file

@ -7,7 +7,7 @@ use rustc_hir::def_id::DefId;
use rustc_hir::hir_id::HirIdMap;
use rustc_hir::{Body, Expr, ExprKind, HirId, ImplItem, ImplItemKind, Node, PatKind, TraitItem, TraitItemKind};
use rustc_lint::{LateContext, LateLintPass};
use rustc_middle::ty::subst::{GenericArgKind, SubstsRef};
use rustc_middle::ty::subst::{EarlyBinder, GenericArgKind, SubstsRef};
use rustc_middle::ty::{self, ConstKind};
use rustc_session::{declare_tool_lint, impl_lint_pass};
use rustc_span::symbol::{kw, Ident};
@ -244,7 +244,7 @@ impl<'tcx> LateLintPass<'tcx> for OnlyUsedInRecursion {
})) => {
#[allow(trivial_casts)]
if let Some(Node::Item(item)) = get_parent_node(cx.tcx, owner_id.into())
&& let Some(trait_ref) = cx.tcx.impl_trait_ref(item.owner_id)
&& let Some(trait_ref) = cx.tcx.impl_trait_ref(item.owner_id).map(EarlyBinder::subst_identity)
&& let Some(trait_item_id) = cx.tcx.associated_item(owner_id).trait_item_def_id
{
(

4
clippy_lints/src/pass_by_ref_or_value.rs
View file

@ -190,10 +190,10 @@ impl<'tcx> PassByRefOrValue {
// Don't lint if an unsafe pointer is created.
// TODO: Limit the check only to unsafe pointers to the argument (or part of the argument)
// which escape the current function.
if typeck.node_types().iter().any(|(_, &ty)| ty.is_unsafe_ptr())
if typeck.node_types().items().any(|(_, &ty)| ty.is_unsafe_ptr())
|| typeck
.adjustments()
.iter()
.items()
.flat_map(|(_, a)| a)
.any(|a| matches!(a.kind, Adjust::Pointer(PointerCast::UnsafeFnPointer)))
{

2
clippy_lints/src/transmute/utils.rs
View file

@ -34,7 +34,7 @@ pub(super) fn check_cast<'tcx>(
let local_def_id = hir_id.owner.def_id;
Inherited::build(cx.tcx, local_def_id).enter(|inherited| {
let fn_ctxt = FnCtxt::new(inherited, cx.param_env, hir_id);
let fn_ctxt = FnCtxt::new(inherited, cx.param_env, local_def_id);
// If we already have errors, we can't be sure we can pointer cast.
assert!(

2
clippy_lints/src/use_self.rs
View file

@ -137,7 +137,7 @@ impl<'tcx> LateLintPass<'tcx> for UseSelf {
then {
// `self_ty` is the semantic self type of `impl <trait> for <type>`. This cannot be
// `Self`.
let self_ty = impl_trait_ref.self_ty();
let self_ty = impl_trait_ref.subst_identity().self_ty();
// `trait_method_sig` is the signature of the function, how it is declared in the
// trait, not in the impl of the trait.

2
clippy_utils/Cargo.toml
View file

@ -1,6 +1,6 @@
[package]
name = "clippy_utils"
version = "0.1.68"
version = "0.1.69"
edition = "2021"
publish = false

54
clippy_utils/src/macros.rs
View file

@ -1,6 +1,5 @@
#![allow(clippy::similar_names)] // `expr` and `expn`
use crate::is_path_diagnostic_item;
use crate::source::snippet_opt;
use crate::visitors::{for_each_expr, Descend};
@ -8,7 +7,7 @@ use arrayvec::ArrayVec;
use itertools::{izip, Either, Itertools};
use rustc_ast::ast::LitKind;
use rustc_hir::intravisit::{walk_expr, Visitor};
use rustc_hir::{self as hir, Expr, ExprField, ExprKind, HirId, Node, QPath};
use rustc_hir::{self as hir, Expr, ExprField, ExprKind, HirId, LangItem, Node, QPath, TyKind};
use rustc_lexer::unescape::unescape_literal;
use rustc_lexer::{tokenize, unescape, LiteralKind, TokenKind};
use rustc_lint::LateContext;
@ -439,8 +438,7 @@ impl<'tcx> FormatArgsValues<'tcx> {
// ArgumentV1::from_usize(<val>)
if let ExprKind::Call(callee, [val]) = expr.kind
&& let ExprKind::Path(QPath::TypeRelative(ty, _)) = callee.kind
&& let hir::TyKind::Path(QPath::Resolved(_, path)) = ty.kind
&& path.segments.last().unwrap().ident.name == sym::ArgumentV1
&& let TyKind::Path(QPath::LangItem(LangItem::FormatArgument, _, _)) = ty.kind
{
let val_idx = if val.span.ctxt() == expr.span.ctxt()
&& let ExprKind::Field(_, field) = val.kind
@ -486,20 +484,6 @@ struct ParamPosition {
impl<'tcx> Visitor<'tcx> for ParamPosition {
fn visit_expr_field(&mut self, field: &'tcx ExprField<'tcx>) {
fn parse_count(expr: &Expr<'_>) -> Option<usize> {
// ::core::fmt::rt::v1::Count::Param(1usize),
if let ExprKind::Call(ctor, [val]) = expr.kind
&& let ExprKind::Path(QPath::Resolved(_, path)) = ctor.kind
&& path.segments.last()?.ident.name == sym::Param
&& let ExprKind::Lit(lit) = &val.kind
&& let LitKind::Int(pos, _) = lit.node
{
Some(pos as usize)
} else {
None
}
}
match field.ident.name {
sym::position => {
if let ExprKind::Lit(lit) = &field.expr.kind
@ -519,15 +503,41 @@ impl<'tcx> Visitor<'tcx> for ParamPosition {
}
}
fn parse_count(expr: &Expr<'_>) -> Option<usize> {
// <::core::fmt::rt::v1::Count>::Param(1usize),
if let ExprKind::Call(ctor, [val]) = expr.kind
&& let ExprKind::Path(QPath::TypeRelative(_, path)) = ctor.kind
&& path.ident.name == sym::Param
&& let ExprKind::Lit(lit) = &val.kind
&& let LitKind::Int(pos, _) = lit.node
{
Some(pos as usize)
} else {
None
}
}
/// Parses the `fmt` arg of `Arguments::new_v1_formatted(pieces, args, fmt, _)`
fn parse_rt_fmt<'tcx>(fmt_arg: &'tcx Expr<'tcx>) -> Option<impl Iterator<Item = ParamPosition> + 'tcx> {
if let ExprKind::AddrOf(.., array) = fmt_arg.kind
&& let ExprKind::Array(specs) = array.kind
{
Some(specs.iter().map(|spec| {
let mut position = ParamPosition::default();
position.visit_expr(spec);
position
if let ExprKind::Call(f, args) = spec.kind
&& let ExprKind::Path(QPath::TypeRelative(ty, f)) = f.kind
&& let TyKind::Path(QPath::LangItem(LangItem::FormatPlaceholder, _, _)) = ty.kind
&& f.ident.name == sym::new
&& let [position, _fill, _align, _flags, precision, width] = args
&& let ExprKind::Lit(position) = &position.kind
&& let LitKind::Int(position, _) = position.node {
ParamPosition {
value: position as usize,
width: parse_count(width),
precision: parse_count(precision),
}
} else {
ParamPosition::default()
}
}))
} else {
None
@ -890,7 +900,7 @@ impl<'tcx> FormatArgsExpn<'tcx> {
// ::core::fmt::Arguments::new_v1_formatted(pieces, args, fmt, _unsafe_arg)
if let ExprKind::Call(callee, [pieces, args, rest @ ..]) = expr.kind
&& let ExprKind::Path(QPath::TypeRelative(ty, seg)) = callee.kind
&& is_path_diagnostic_item(cx, ty, sym::Arguments)
&& let TyKind::Path(QPath::LangItem(LangItem::FormatArguments, _, _)) = ty.kind
&& matches!(seg.ident.as_str(), "new_v1" | "new_v1_formatted")
{
let format_string = FormatString::new(cx, pieces)?;

1
clippy_utils/src/sugg.rs
View file

@ -219,6 +219,7 @@ impl<'a> Sugg<'a> {
| ast::ExprKind::Repeat(..)
| ast::ExprKind::Ret(..)
| ast::ExprKind::Yeet(..)
| ast::ExprKind::FormatArgs(..)
| ast::ExprKind::Struct(..)
| ast::ExprKind::Try(..)
| ast::ExprKind::TryBlock(..)

9
clippy_utils/src/ty.rs
View file

@ -647,9 +647,12 @@ pub fn ty_sig<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<ExprFnSig<'t
Some(ExprFnSig::Closure(decl, subs.as_closure().sig()))
},
ty::FnDef(id, subs) => Some(ExprFnSig::Sig(cx.tcx.bound_fn_sig(id).subst(cx.tcx, subs), Some(id))),
ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => {
sig_from_bounds(cx, ty, cx.tcx.item_bounds(def_id), cx.tcx.opt_parent(def_id))
},
ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => sig_from_bounds(
cx,
ty,
cx.tcx.item_bounds(def_id).subst(cx.tcx, substs),
cx.tcx.opt_parent(def_id),
),
ty::FnPtr(sig) => Some(ExprFnSig::Sig(sig, None)),
ty::Dynamic(bounds, _, _) => {
let lang_items = cx.tcx.lang_items();

2
declare_clippy_lint/Cargo.toml
View file

@ -1,6 +1,6 @@
[package]
name = "declare_clippy_lint"
version = "0.1.68"
version = "0.1.69"
edition = "2021"
publish = false

2
rust-toolchain
View file

@ -1,3 +1,3 @@
[toolchain]
channel = "nightly-2023-01-12"
channel = "nightly-2023-01-27"
components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]

16
tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr
View file

@ -7,14 +7,6 @@ LL | const DEREF_TRAIT: [&str; 4] = ["core", "ops", "deref", "Deref"];
= help: convert all references to use `sym::Deref`
= note: `-D clippy::unnecessary-def-path` implied by `-D warnings`
error: hardcoded path to a language item
--> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40
|
LL | const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"];
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: convert all references to use `LangItem::DerefMut`
error: hardcoded path to a diagnostic item
--> $DIR/unnecessary_def_path_hardcoded_path.rs:12:43
|
@ -23,5 +15,13 @@ LL | const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref",
|
= help: convert all references to use `sym::deref_method`
error: hardcoded path to a language item
--> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40
|
LL | const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"];
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: convert all references to use `LangItem::DerefMut`
error: aborting due to 3 previous errors

9
tests/ui/crashes/ice-6252.stderr
View file

@ -17,9 +17,12 @@ error[E0412]: cannot find type `VAL` in this scope
--> $DIR/ice-6252.rs:10:63
|
LL | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
| - ^^^ not found in this scope
| |
| help: you might be missing a type parameter: `, VAL`
| ^^^ not found in this scope
|
help: you might be missing a type parameter
|
LL | impl<N, M, VAL> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
| +++++
error[E0046]: not all trait items implemented, missing: `VAL`
--> $DIR/ice-6252.rs:10:1

2
tests/ui/def_id_nocore.rs
View file

@ -15,7 +15,7 @@ pub trait Copy {}
pub unsafe trait Freeze {}
#[lang = "start"]
fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8) -> isize {
fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8, _sigpipe: u8) -> isize {
0
}