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ExprUseVisitor::Delegate consume only when moving

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This commit is contained in:
Aman Arora 2021-07-14 02:21:08 -04:00
parent 075a28996c
commit a9e9b7f9b2
4 changed files with 9 additions and 14 deletions
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9
clippy_lints/src/escape.rs
View file

@ -11,7 +11,7 @@ use rustc_span::source_map::Span;
use rustc_span::symbol::kw;
use rustc_target::abi::LayoutOf;
use rustc_target::spec::abi::Abi;
use rustc_typeck::expr_use_visitor::{ConsumeMode, Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
use rustc_typeck::expr_use_visitor::{Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
#[derive(Copy, Clone)]
pub struct BoxedLocal {
@ -133,13 +133,10 @@ fn is_argument(map: rustc_middle::hir::map::Map<'_>, id: HirId) -> bool {
}
impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
fn consume(&mut self, cmt: &PlaceWithHirId<'tcx>, _: HirId, mode: ConsumeMode) {
fn consume(&mut self, cmt: &PlaceWithHirId<'tcx>, _: HirId) {
if cmt.place.projections.is_empty() {
if let PlaceBase::Local(lid) = cmt.place.base {
if let ConsumeMode::Move = mode {
// moved out or in. clearly can't be localized
self.set.remove(&lid);
}
self.set.remove(&lid);
let map = &self.cx.tcx.hir();
if let Some(Node::Binding(_)) = map.find(cmt.hir_id) {
if self.set.contains(&lid) {

4
clippy_lints/src/loops/mut_range_bound.rs
View file

@ -7,7 +7,7 @@ use rustc_infer::infer::TyCtxtInferExt;
use rustc_lint::LateContext;
use rustc_middle::{mir::FakeReadCause, ty};
use rustc_span::source_map::Span;
use rustc_typeck::expr_use_visitor::{ConsumeMode, Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
use rustc_typeck::expr_use_visitor::{Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
pub(super) fn check(cx: &LateContext<'_>, arg: &Expr<'_>, body: &Expr<'_>) {
if let Some(higher::Range {
@ -82,7 +82,7 @@ struct MutatePairDelegate<'a, 'tcx> {
}
impl<'tcx> Delegate<'tcx> for MutatePairDelegate<'_, 'tcx> {
fn consume(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId, _: ConsumeMode) {}
fn consume(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId) {}
fn borrow(&mut self, cmt: &PlaceWithHirId<'tcx>, diag_expr_id: HirId, bk: ty::BorrowKind) {
if let ty::BorrowKind::MutBorrow = bk {

6
clippy_lints/src/needless_pass_by_value.rs
View file

@ -326,10 +326,8 @@ impl MovedVariablesCtxt {
}
impl<'tcx> euv::Delegate<'tcx> for MovedVariablesCtxt {
fn consume(&mut self, cmt: &euv::PlaceWithHirId<'tcx>, _: HirId, mode: euv::ConsumeMode) {
if let euv::ConsumeMode::Move = mode {
self.move_common(cmt);
}
fn consume(&mut self, cmt: &euv::PlaceWithHirId<'tcx>, _: HirId) {
self.move_common(cmt);
}
fn borrow(&mut self, _: &euv::PlaceWithHirId<'tcx>, _: HirId, _: ty::BorrowKind) {}

4
clippy_utils/src/usage.rs
View file

@ -10,7 +10,7 @@ use rustc_lint::LateContext;
use rustc_middle::hir::map::Map;
use rustc_middle::mir::FakeReadCause;
use rustc_middle::ty;
use rustc_typeck::expr_use_visitor::{ConsumeMode, Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
use rustc_typeck::expr_use_visitor::{Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
/// Returns a set of mutated local variable IDs, or `None` if mutations could not be determined.
pub fn mutated_variables<'tcx>(expr: &'tcx Expr<'_>, cx: &LateContext<'tcx>) -> Option<HirIdSet> {
@ -67,7 +67,7 @@ impl<'tcx> MutVarsDelegate {
}
impl<'tcx> Delegate<'tcx> for MutVarsDelegate {
fn consume(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId, _: ConsumeMode) {}
fn consume(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId) {}
fn borrow(&mut self, cmt: &PlaceWithHirId<'tcx>, _: HirId, bk: ty::BorrowKind) {
if let ty::BorrowKind::MutBorrow = bk {