Auto merge of #8942 - flip1995:rustup, r=flip1995

Rustup

r? `@ghost`

changelog: none
This commit is contained in:
bors 2022-06-04 10:55:48 +00:00
commit d9ddce8a22
25 changed files with 123 additions and 80 deletions

View file

@ -12,12 +12,12 @@ use rustc_middle::ty::{self, FloatTy, InferTy, Ty};
use super::UNNECESSARY_CAST; use super::UNNECESSARY_CAST;
pub(super) fn check( pub(super) fn check<'tcx>(
cx: &LateContext<'_>, cx: &LateContext<'tcx>,
expr: &Expr<'_>, expr: &Expr<'tcx>,
cast_expr: &Expr<'_>, cast_expr: &Expr<'tcx>,
cast_from: Ty<'_>, cast_from: Ty<'tcx>,
cast_to: Ty<'_>, cast_to: Ty<'tcx>,
) -> bool { ) -> bool {
// skip non-primitive type cast // skip non-primitive type cast
if_chain! { if_chain! {

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@ -90,7 +90,7 @@ fn contains_unhygienic_crate_reference(tts: &TokenStream) -> Option<Span> {
while let Some(curr) = cursor.next() { while let Some(curr) = cursor.next() {
if_chain! { if_chain! {
if !prev_is_dollar; if !prev_is_dollar;
if let Some(span) = is_crate_keyword(&curr); if let Some(span) = is_crate_keyword(curr);
if let Some(next) = cursor.look_ahead(0); if let Some(next) = cursor.look_ahead(0);
if is_token(next, &TokenKind::ModSep); if is_token(next, &TokenKind::ModSep);
then { then {
@ -103,7 +103,7 @@ fn contains_unhygienic_crate_reference(tts: &TokenStream) -> Option<Span> {
return span; return span;
} }
} }
prev_is_dollar = is_token(&curr, &TokenKind::Dollar); prev_is_dollar = is_token(curr, &TokenKind::Dollar);
} }
None None
} }

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@ -446,7 +446,7 @@ fn try_parse_ref_op<'tcx>(
// Checks whether the type for a deref call actually changed the type, not just the mutability of // Checks whether the type for a deref call actually changed the type, not just the mutability of
// the reference. // the reference.
fn deref_method_same_type(result_ty: Ty<'_>, arg_ty: Ty<'_>) -> bool { fn deref_method_same_type<'tcx>(result_ty: Ty<'tcx>, arg_ty: Ty<'tcx>) -> bool {
match (result_ty.kind(), arg_ty.kind()) { match (result_ty.kind(), arg_ty.kind()) {
(ty::Ref(_, result_ty, _), ty::Ref(_, arg_ty, _)) => result_ty == arg_ty, (ty::Ref(_, result_ty, _), ty::Ref(_, arg_ty, _)) => result_ty == arg_ty,
@ -541,8 +541,8 @@ fn is_auto_borrow_position(parent: Option<Node<'_>>, child_id: HirId) -> bool {
/// Adjustments are sometimes made in the parent block rather than the expression itself. /// Adjustments are sometimes made in the parent block rather than the expression itself.
fn find_adjustments<'tcx>( fn find_adjustments<'tcx>(
tcx: TyCtxt<'tcx>, tcx: TyCtxt<'tcx>,
typeck: &'tcx TypeckResults<'_>, typeck: &'tcx TypeckResults<'tcx>,
expr: &'tcx Expr<'_>, expr: &'tcx Expr<'tcx>,
) -> &'tcx [Adjustment<'tcx>] { ) -> &'tcx [Adjustment<'tcx>] {
let map = tcx.hir(); let map = tcx.hir();
let mut iter = map.parent_iter(expr.hir_id); let mut iter = map.parent_iter(expr.hir_id);
@ -581,7 +581,7 @@ fn find_adjustments<'tcx>(
} }
#[expect(clippy::needless_pass_by_value)] #[expect(clippy::needless_pass_by_value)]
fn report(cx: &LateContext<'_>, expr: &Expr<'_>, state: State, data: StateData) { fn report<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, state: State, data: StateData) {
match state { match state {
State::DerefMethod { State::DerefMethod {
ty_changed_count, ty_changed_count,
@ -656,7 +656,7 @@ fn report(cx: &LateContext<'_>, expr: &Expr<'_>, state: State, data: StateData)
} }
impl Dereferencing { impl Dereferencing {
fn check_local_usage(&mut self, cx: &LateContext<'_>, e: &Expr<'_>, local: HirId) { fn check_local_usage<'tcx>(&mut self, cx: &LateContext<'tcx>, e: &Expr<'tcx>, local: HirId) {
if let Some(outer_pat) = self.ref_locals.get_mut(&local) { if let Some(outer_pat) = self.ref_locals.get_mut(&local) {
if let Some(pat) = outer_pat { if let Some(pat) = outer_pat {
// Check for auto-deref // Check for auto-deref

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@ -189,7 +189,7 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
} }
} }
fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {} fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
} }
impl<'a, 'tcx> EscapeDelegate<'a, 'tcx> { impl<'a, 'tcx> EscapeDelegate<'a, 'tcx> {

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@ -4,7 +4,8 @@ use clippy_utils::source::snippet_with_applicability;
use clippy_utils::{is_expn_of, match_function_call, paths}; use clippy_utils::{is_expn_of, match_function_call, paths};
use if_chain::if_chain; use if_chain::if_chain;
use rustc_errors::Applicability; use rustc_errors::Applicability;
use rustc_hir::{Expr, ExprKind}; use rustc_hir::def::Res;
use rustc_hir::{BindingAnnotation, Block, BlockCheckMode, Expr, ExprKind, Node, PatKind, QPath, Stmt, StmtKind};
use rustc_lint::{LateContext, LateLintPass}; use rustc_lint::{LateContext, LateLintPass};
use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::sym; use rustc_span::sym;
@ -47,7 +48,7 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
if let ExprKind::MethodCall(unwrap_fun, [write_call], _) = expr.kind; if let ExprKind::MethodCall(unwrap_fun, [write_call], _) = expr.kind;
if unwrap_fun.ident.name == sym::unwrap; if unwrap_fun.ident.name == sym::unwrap;
// match call to write_fmt // match call to write_fmt
if let ExprKind::MethodCall(write_fun, [write_recv, write_arg], _) = write_call.kind; if let ExprKind::MethodCall(write_fun, [write_recv, write_arg], _) = look_in_block(cx, &write_call.kind);
if write_fun.ident.name == sym!(write_fmt); if write_fun.ident.name == sym!(write_fmt);
// match calls to std::io::stdout() / std::io::stderr () // match calls to std::io::stdout() / std::io::stderr ()
if let Some(dest_name) = if match_function_call(cx, write_recv, &paths::STDOUT).is_some() { if let Some(dest_name) = if match_function_call(cx, write_recv, &paths::STDOUT).is_some() {
@ -108,3 +109,34 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
} }
} }
} }
/// If `kind` is a block that looks like `{ let result = $expr; result }` then
/// returns $expr. Otherwise returns `kind`.
fn look_in_block<'tcx, 'hir>(cx: &LateContext<'tcx>, kind: &'tcx ExprKind<'hir>) -> &'tcx ExprKind<'hir> {
if_chain! {
if let ExprKind::Block(block, _label @ None) = kind;
if let Block {
stmts: [Stmt { kind: StmtKind::Local(local), .. }],
expr: Some(expr_end_of_block),
rules: BlockCheckMode::DefaultBlock,
..
} = block;
// Find id of the local that expr_end_of_block resolves to
if let ExprKind::Path(QPath::Resolved(None, expr_path)) = expr_end_of_block.kind;
if let Res::Local(expr_res) = expr_path.res;
if let Some(Node::Binding(res_pat)) = cx.tcx.hir().find(expr_res);
// Find id of the local we found in the block
if let PatKind::Binding(BindingAnnotation::Unannotated, local_hir_id, _ident, None) = local.pat.kind;
// If those two are the same hir id
if res_pat.hir_id == local_hir_id;
if let Some(init) = local.init;
then {
return &init.kind;
}
}
kind
}

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@ -259,8 +259,8 @@ fn parse_len_output<'tcx>(cx: &LateContext<'_>, sig: FnSig<'tcx>) -> Option<LenO
} }
} }
impl LenOutput<'_> { impl<'tcx> LenOutput<'tcx> {
fn matches_is_empty_output(self, ty: Ty<'_>) -> bool { fn matches_is_empty_output(self, ty: Ty<'tcx>) -> bool {
match (self, ty.kind()) { match (self, ty.kind()) {
(_, &ty::Bool) => true, (_, &ty::Bool) => true,
(Self::Option(id), &ty::Adt(adt, subs)) if id == adt.did() => subs.type_at(0).is_bool(), (Self::Option(id), &ty::Adt(adt, subs)) if id == adt.did() => subs.type_at(0).is_bool(),
@ -292,7 +292,7 @@ impl LenOutput<'_> {
} }
/// Checks if the given signature matches the expectations for `is_empty` /// Checks if the given signature matches the expectations for `is_empty`
fn check_is_empty_sig(sig: FnSig<'_>, self_kind: ImplicitSelfKind, len_output: LenOutput<'_>) -> bool { fn check_is_empty_sig<'tcx>(sig: FnSig<'tcx>, self_kind: ImplicitSelfKind, len_output: LenOutput<'tcx>) -> bool {
match &**sig.inputs_and_output { match &**sig.inputs_and_output {
[arg, res] if len_output.matches_is_empty_output(*res) => { [arg, res] if len_output.matches_is_empty_output(*res) => {
matches!( matches!(
@ -306,11 +306,11 @@ fn check_is_empty_sig(sig: FnSig<'_>, self_kind: ImplicitSelfKind, len_output: L
} }
/// Checks if the given type has an `is_empty` method with the appropriate signature. /// Checks if the given type has an `is_empty` method with the appropriate signature.
fn check_for_is_empty( fn check_for_is_empty<'tcx>(
cx: &LateContext<'_>, cx: &LateContext<'tcx>,
span: Span, span: Span,
self_kind: ImplicitSelfKind, self_kind: ImplicitSelfKind,
output: LenOutput<'_>, output: LenOutput<'tcx>,
impl_ty: DefId, impl_ty: DefId,
item_name: Symbol, item_name: Symbol,
item_kind: &str, item_kind: &str,

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@ -371,7 +371,7 @@ impl<'a, 'tcx> RefVisitor<'a, 'tcx> {
if let Some(ref lt) = *lifetime { if let Some(ref lt) = *lifetime {
if lt.name == LifetimeName::Static { if lt.name == LifetimeName::Static {
self.lts.push(RefLt::Static); self.lts.push(RefLt::Static);
} else if let LifetimeName::Param(ParamName::Fresh(_)) = lt.name { } else if let LifetimeName::Param(_, ParamName::Fresh) = lt.name {
// Fresh lifetimes generated should be ignored. // Fresh lifetimes generated should be ignored.
} else if lt.is_elided() { } else if lt.is_elided() {
self.lts.push(RefLt::Unnamed); self.lts.push(RefLt::Unnamed);

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@ -114,7 +114,7 @@ impl<'tcx> Delegate<'tcx> for MutatePairDelegate<'_, 'tcx> {
} }
} }
fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {} fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
} }
impl MutatePairDelegate<'_, '_> { impl MutatePairDelegate<'_, '_> {

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@ -117,7 +117,9 @@ pub(super) fn check<'tcx>(
let take_expr = sugg::Sugg::hir(cx, take_expr, "<count>"); let take_expr = sugg::Sugg::hir(cx, take_expr, "<count>");
format!(".take({})", take_expr + sugg::ONE) format!(".take({})", take_expr + sugg::ONE)
}, },
ast::RangeLimits::HalfOpen => format!(".take({})", snippet(cx, take_expr.span, "..")), ast::RangeLimits::HalfOpen => {
format!(".take({})", snippet(cx, take_expr.span, ".."))
},
} }
} }
} else { } else {
@ -262,7 +264,11 @@ impl<'a, 'tcx> VarVisitor<'a, 'tcx> {
match res { match res {
Res::Local(hir_id) => { Res::Local(hir_id) => {
let parent_def_id = self.cx.tcx.hir().get_parent_item(expr.hir_id); let parent_def_id = self.cx.tcx.hir().get_parent_item(expr.hir_id);
let extent = self.cx.tcx.region_scope_tree(parent_def_id).var_scope(hir_id.local_id).unwrap(); let extent = self.cx
.tcx
.region_scope_tree(parent_def_id)
.var_scope(hir_id.local_id)
.unwrap();
if index_used_directly { if index_used_directly {
self.indexed_directly.insert( self.indexed_directly.insert(
seqvar.segments[0].ident.name, seqvar.segments[0].ident.name,

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@ -113,7 +113,7 @@ impl EarlyLintPass for ManualNonExhaustiveStruct {
let mut iter = fields.iter().filter_map(|f| match f.vis.kind { let mut iter = fields.iter().filter_map(|f| match f.vis.kind {
VisibilityKind::Public => None, VisibilityKind::Public => None,
VisibilityKind::Inherited => Some(Ok(f)), VisibilityKind::Inherited => Some(Ok(f)),
_ => Some(Err(())), VisibilityKind::Restricted { .. } => Some(Err(())),
}); });
if let Some(Ok(field)) = iter.next() if let Some(Ok(field)) = iter.next()
&& iter.next().is_none() && iter.next().is_none()

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@ -2882,7 +2882,7 @@ enum SelfKind {
impl SelfKind { impl SelfKind {
fn matches<'a>(self, cx: &LateContext<'a>, parent_ty: Ty<'a>, ty: Ty<'a>) -> bool { fn matches<'a>(self, cx: &LateContext<'a>, parent_ty: Ty<'a>, ty: Ty<'a>) -> bool {
fn matches_value<'a>(cx: &LateContext<'a>, parent_ty: Ty<'_>, ty: Ty<'_>) -> bool { fn matches_value<'a>(cx: &LateContext<'a>, parent_ty: Ty<'a>, ty: Ty<'a>) -> bool {
if ty == parent_ty { if ty == parent_ty {
true true
} else if ty.is_box() { } else if ty.is_box() {

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@ -343,5 +343,5 @@ impl<'tcx> euv::Delegate<'tcx> for MovedVariablesCtxt {
fn mutate(&mut self, _: &euv::PlaceWithHirId<'tcx>, _: HirId) {} fn mutate(&mut self, _: &euv::PlaceWithHirId<'tcx>, _: HirId) {}
fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {} fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
} }

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@ -343,7 +343,7 @@ impl fmt::Display for RefPrefix {
use fmt::Write; use fmt::Write;
f.write_char('&')?; f.write_char('&')?;
match self.lt { match self.lt {
LifetimeName::Param(ParamName::Plain(name)) => { LifetimeName::Param(_, ParamName::Plain(name)) => {
name.fmt(f)?; name.fmt(f)?;
f.write_char(' ')?; f.write_char(' ')?;
}, },
@ -395,9 +395,9 @@ impl<'tcx> DerefTy<'tcx> {
fn check_fn_args<'cx, 'tcx: 'cx>( fn check_fn_args<'cx, 'tcx: 'cx>(
cx: &'cx LateContext<'tcx>, cx: &'cx LateContext<'tcx>,
tys: &'tcx [Ty<'_>], tys: &'tcx [Ty<'tcx>],
hir_tys: &'tcx [hir::Ty<'_>], hir_tys: &'tcx [hir::Ty<'tcx>],
params: &'tcx [Param<'_>], params: &'tcx [Param<'tcx>],
) -> impl Iterator<Item = PtrArg<'tcx>> + 'cx { ) -> impl Iterator<Item = PtrArg<'tcx>> + 'cx {
tys.iter() tys.iter()
.zip(hir_tys.iter()) .zip(hir_tys.iter())

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@ -292,7 +292,7 @@ fn is_call_with_ref_arg<'tcx>(
if let (inner_ty, 1) = walk_ptrs_ty_depth(args[0].ty(mir, cx.tcx)); if let (inner_ty, 1) = walk_ptrs_ty_depth(args[0].ty(mir, cx.tcx));
if !is_copy(cx, inner_ty); if !is_copy(cx, inner_ty);
then { then {
Some((def_id, *local, inner_ty, destination.as_ref().map(|(dest, _)| dest)?.as_local()?)) Some((def_id, *local, inner_ty, destination.as_local()?))
} else { } else {
None None
} }
@ -584,7 +584,7 @@ impl<'a, 'tcx> mir::visit::Visitor<'tcx> for PossibleBorrowerVisitor<'a, 'tcx> {
fn visit_terminator(&mut self, terminator: &mir::Terminator<'_>, _loc: mir::Location) { fn visit_terminator(&mut self, terminator: &mir::Terminator<'_>, _loc: mir::Location) {
if let mir::TerminatorKind::Call { if let mir::TerminatorKind::Call {
args, args,
destination: Some((mir::Place { local: dest, .. }, _)), destination: mir::Place { local: dest, .. },
.. ..
} = &terminator.kind } = &terminator.kind
{ {

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@ -358,7 +358,7 @@ fn is_size_pair(ty: Ty<'_>) -> bool {
} }
} }
fn same_except_params(subs1: SubstsRef<'_>, subs2: SubstsRef<'_>) -> bool { fn same_except_params<'tcx>(subs1: SubstsRef<'tcx>, subs2: SubstsRef<'tcx>) -> bool {
// TODO: check const parameters as well. Currently this will consider `Array<5>` the same as // TODO: check const parameters as well. Currently this will consider `Array<5>` the same as
// `Array<6>` // `Array<6>`
for (ty1, ty2) in subs1.types().zip(subs2.types()).filter(|(ty1, ty2)| ty1 != ty2) { for (ty1, ty2) in subs1.types().zip(subs2.types()).filter(|(ty1, ty2)| ty1 != ty2) {

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@ -187,11 +187,13 @@ fn item_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) -> bool {
&& Lrc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf) && Lrc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf)
&& let Some(src) = unsafe_line.sf.src.as_deref() && let Some(src) = unsafe_line.sf.src.as_deref()
{ {
unsafe_line.sf.lines(|lines| {
comment_start_line.line < unsafe_line.line && text_has_safety_comment( comment_start_line.line < unsafe_line.line && text_has_safety_comment(
src, src,
&unsafe_line.sf.lines[comment_start_line.line + 1..=unsafe_line.line], &lines[comment_start_line.line + 1..=unsafe_line.line],
unsafe_line.sf.start_pos.to_usize(), unsafe_line.sf.start_pos.to_usize(),
) )
})
} else { } else {
// Problem getting source text. Pretend a comment was found. // Problem getting source text. Pretend a comment was found.
true true
@ -249,11 +251,13 @@ fn span_from_macro_expansion_has_safety_comment(cx: &LateContext<'_>, span: Span
&& Lrc::ptr_eq(&unsafe_line.sf, &macro_line.sf) && Lrc::ptr_eq(&unsafe_line.sf, &macro_line.sf)
&& let Some(src) = unsafe_line.sf.src.as_deref() && let Some(src) = unsafe_line.sf.src.as_deref()
{ {
unsafe_line.sf.lines(|lines| {
macro_line.line < unsafe_line.line && text_has_safety_comment( macro_line.line < unsafe_line.line && text_has_safety_comment(
src, src,
&unsafe_line.sf.lines[macro_line.line + 1..=unsafe_line.line], &lines[macro_line.line + 1..=unsafe_line.line],
unsafe_line.sf.start_pos.to_usize(), unsafe_line.sf.start_pos.to_usize(),
) )
})
} else { } else {
// Problem getting source text. Pretend a comment was found. // Problem getting source text. Pretend a comment was found.
true true
@ -276,11 +280,13 @@ fn span_in_body_has_safety_comment(cx: &LateContext<'_>, span: Span) -> bool {
// Get the text from the start of function body to the unsafe block. // Get the text from the start of function body to the unsafe block.
// fn foo() { some_stuff; unsafe { stuff }; other_stuff; } // fn foo() { some_stuff; unsafe { stuff }; other_stuff; }
// ^-------------^ // ^-------------^
unsafe_line.sf.lines(|lines| {
body_line.line < unsafe_line.line && text_has_safety_comment( body_line.line < unsafe_line.line && text_has_safety_comment(
src, src,
&unsafe_line.sf.lines[body_line.line + 1..=unsafe_line.line], &lines[body_line.line + 1..=unsafe_line.line],
unsafe_line.sf.start_pos.to_usize(), unsafe_line.sf.start_pos.to_usize(),
) )
})
} else { } else {
// Problem getting source text. Pretend a comment was found. // Problem getting source text. Pretend a comment was found.
true true

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@ -545,7 +545,7 @@ pub fn eq_defaultness(l: Defaultness, r: Defaultness) -> bool {
pub fn eq_vis(l: &Visibility, r: &Visibility) -> bool { pub fn eq_vis(l: &Visibility, r: &Visibility) -> bool {
use VisibilityKind::*; use VisibilityKind::*;
match (&l.kind, &r.kind) { match (&l.kind, &r.kind) {
(Public, Public) | (Inherited, Inherited) | (Crate(_), Crate(_)) => true, (Public, Public) | (Inherited, Inherited) => true,
(Restricted { path: l, .. }, Restricted { path: r, .. }) => eq_path(l, r), (Restricted { path: l, .. }, Restricted { path: r, .. }) => eq_path(l, r),
_ => false, _ => false,
} }

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@ -274,8 +274,11 @@ pub fn span_lint_and_sugg_for_edges(
let sm = cx.sess().source_map(); let sm = cx.sess().source_map();
if let (Ok(line_upper), Ok(line_bottom)) = (sm.lookup_line(sp.lo()), sm.lookup_line(sp.hi())) { if let (Ok(line_upper), Ok(line_bottom)) = (sm.lookup_line(sp.lo()), sm.lookup_line(sp.hi())) {
let split_idx = MAX_SUGGESTION_HIGHLIGHT_LINES / 2; let split_idx = MAX_SUGGESTION_HIGHLIGHT_LINES / 2;
let span_upper = sm.span_until_char(sp.with_hi(line_upper.sf.lines[line_upper.line + split_idx]), '\n'); let span_upper = sm.span_until_char(
let span_bottom = sp.with_lo(line_bottom.sf.lines[line_bottom.line - split_idx]); sp.with_hi(line_upper.sf.lines(|lines| lines[line_upper.line + split_idx])),
'\n',
);
let span_bottom = sp.with_lo(line_bottom.sf.lines(|lines| lines[line_bottom.line - split_idx]));
let sugg_lines_vec = sugg.lines().collect::<Vec<&str>>(); let sugg_lines_vec = sugg.lines().collect::<Vec<&str>>();
let sugg_upper = sugg_lines_vec[..split_idx].join("\n"); let sugg_upper = sugg_lines_vec[..split_idx].join("\n");

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@ -902,16 +902,14 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
pub fn hash_lifetime(&mut self, lifetime: Lifetime) { pub fn hash_lifetime(&mut self, lifetime: Lifetime) {
std::mem::discriminant(&lifetime.name).hash(&mut self.s); std::mem::discriminant(&lifetime.name).hash(&mut self.s);
if let LifetimeName::Param(ref name) = lifetime.name { if let LifetimeName::Param(param_id, ref name) = lifetime.name {
std::mem::discriminant(name).hash(&mut self.s); std::mem::discriminant(name).hash(&mut self.s);
param_id.hash(&mut self.s);
match name { match name {
ParamName::Plain(ref ident) => { ParamName::Plain(ref ident) => {
ident.name.hash(&mut self.s); ident.name.hash(&mut self.s);
}, },
ParamName::Fresh(ref size) => { ParamName::Fresh | ParamName::Error => {},
size.hash(&mut self.s);
},
ParamName::Error => {},
} }
} }
} }

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@ -1149,7 +1149,7 @@ fn line_span<T: LintContext>(cx: &T, span: Span) -> Span {
let span = original_sp(span, DUMMY_SP); let span = original_sp(span, DUMMY_SP);
let source_map_and_line = cx.sess().source_map().lookup_line(span.lo()).unwrap(); let source_map_and_line = cx.sess().source_map().lookup_line(span.lo()).unwrap();
let line_no = source_map_and_line.line; let line_no = source_map_and_line.line;
let line_start = source_map_and_line.sf.lines[line_no]; let line_start = source_map_and_line.sf.lines(|lines| lines[line_no]);
span.with_lo(line_start) span.with_lo(line_start)
} }

View file

@ -121,24 +121,18 @@ fn check_rvalue<'tcx>(
) -> McfResult { ) -> McfResult {
match rvalue { match rvalue {
Rvalue::ThreadLocalRef(_) => Err((span, "cannot access thread local storage in const fn".into())), Rvalue::ThreadLocalRef(_) => Err((span, "cannot access thread local storage in const fn".into())),
Rvalue::Repeat(operand, _) | Rvalue::Use(operand) => check_operand(tcx, operand, span, body),
Rvalue::Len(place) | Rvalue::Discriminant(place) | Rvalue::Ref(_, _, place) | Rvalue::AddressOf(_, place) => { Rvalue::Len(place) | Rvalue::Discriminant(place) | Rvalue::Ref(_, _, place) | Rvalue::AddressOf(_, place) => {
check_place(tcx, *place, span, body) check_place(tcx, *place, span, body)
}, },
Rvalue::Cast(CastKind::Misc, operand, cast_ty) => { Rvalue::Repeat(operand, _)
use rustc_middle::ty::cast::CastTy; | Rvalue::Use(operand)
let cast_in = CastTy::from_ty(operand.ty(body, tcx)).expect("bad input type for cast"); | Rvalue::Cast(
let cast_out = CastTy::from_ty(*cast_ty).expect("bad output type for cast"); CastKind::PointerFromExposedAddress
match (cast_in, cast_out) { | CastKind::Misc
(CastTy::Ptr(_) | CastTy::FnPtr, CastTy::Int(_)) => { | CastKind::Pointer(PointerCast::MutToConstPointer | PointerCast::ArrayToPointer),
Err((span, "casting pointers to ints is unstable in const fn".into())) operand,
}, _,
_ => check_operand(tcx, operand, span, body), ) => check_operand(tcx, operand, span, body),
}
},
Rvalue::Cast(CastKind::Pointer(PointerCast::MutToConstPointer | PointerCast::ArrayToPointer), operand, _) => {
check_operand(tcx, operand, span, body)
},
Rvalue::Cast( Rvalue::Cast(
CastKind::Pointer( CastKind::Pointer(
PointerCast::UnsafeFnPointer | PointerCast::ClosureFnPointer(_) | PointerCast::ReifyFnPointer, PointerCast::UnsafeFnPointer | PointerCast::ClosureFnPointer(_) | PointerCast::ReifyFnPointer,
@ -163,6 +157,9 @@ fn check_rvalue<'tcx>(
Err((span, "unsizing casts are not allowed in const fn".into())) Err((span, "unsizing casts are not allowed in const fn".into()))
} }
}, },
Rvalue::Cast(CastKind::PointerExposeAddress, _, _) => {
Err((span, "casting pointers to ints is unstable in const fn".into()))
},
// binops are fine on integers // binops are fine on integers
Rvalue::BinaryOp(_, box (lhs, rhs)) | Rvalue::CheckedBinaryOp(_, box (lhs, rhs)) => { Rvalue::BinaryOp(_, box (lhs, rhs)) | Rvalue::CheckedBinaryOp(_, box (lhs, rhs)) => {
check_operand(tcx, lhs, span, body)?; check_operand(tcx, lhs, span, body)?;
@ -301,6 +298,7 @@ fn check_terminator<'a, 'tcx>(
args, args,
from_hir_call: _, from_hir_call: _,
destination: _, destination: _,
target: _,
cleanup: _, cleanup: _,
fn_span: _, fn_span: _,
} => { } => {

View file

@ -1030,7 +1030,7 @@ impl<'tcx> Delegate<'tcx> for DerefDelegate<'_, 'tcx> {
fn mutate(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId) {} fn mutate(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId) {}
fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {} fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
} }
#[cfg(test)] #[cfg(test)]

View file

@ -43,7 +43,7 @@ pub fn can_partially_move_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool
} }
/// Walks into `ty` and returns `true` if any inner type is the same as `other_ty` /// Walks into `ty` and returns `true` if any inner type is the same as `other_ty`
pub fn contains_ty(ty: Ty<'_>, other_ty: Ty<'_>) -> bool { pub fn contains_ty<'tcx>(ty: Ty<'tcx>, other_ty: Ty<'tcx>) -> bool {
ty.walk().any(|inner| match inner.unpack() { ty.walk().any(|inner| match inner.unpack() {
GenericArgKind::Type(inner_ty) => other_ty == inner_ty, GenericArgKind::Type(inner_ty) => other_ty == inner_ty,
GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false, GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false,
@ -52,7 +52,7 @@ pub fn contains_ty(ty: Ty<'_>, other_ty: Ty<'_>) -> bool {
/// Walks into `ty` and returns `true` if any inner type is an instance of the given adt /// Walks into `ty` and returns `true` if any inner type is an instance of the given adt
/// constructor. /// constructor.
pub fn contains_adt_constructor(ty: Ty<'_>, adt: AdtDef<'_>) -> bool { pub fn contains_adt_constructor<'tcx>(ty: Ty<'tcx>, adt: AdtDef<'tcx>) -> bool {
ty.walk().any(|inner| match inner.unpack() { ty.walk().any(|inner| match inner.unpack() {
GenericArgKind::Type(inner_ty) => inner_ty.ty_adt_def() == Some(adt), GenericArgKind::Type(inner_ty) => inner_ty.ty_adt_def() == Some(adt),
GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false, GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false,

View file

@ -73,7 +73,7 @@ impl<'tcx> Delegate<'tcx> for MutVarsDelegate {
self.update(cmt); self.update(cmt);
} }
fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {} fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
} }
pub struct ParamBindingIdCollector { pub struct ParamBindingIdCollector {

View file

@ -1,3 +1,3 @@
[toolchain] [toolchain]
channel = "nightly-2022-05-19" channel = "nightly-2022-06-04"
components = ["cargo", "llvm-tools-preview", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"] components = ["cargo", "llvm-tools-preview", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]