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Address review comments

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This commit is contained in:
Samuel Moelius 2022-12-13 12:50:03 -05:00
parent 26df55112f
commit c7dc961558
1 changed files with 11 additions and 8 deletions
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19
clippy_utils/src/mir/possible_borrower.rs
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@ -11,7 +11,6 @@ use rustc_mir_dataflow::{
fmt::DebugWithContext, impls::MaybeStorageLive, lattice::JoinSemiLattice, Analysis, AnalysisDomain,
CallReturnPlaces, ResultsCursor,
};
use std::collections::VecDeque;
use std::ops::ControlFlow;
/// Collects the possible borrowers of each local.
@ -216,6 +215,8 @@ pub struct PossibleBorrowerMap<'b, 'tcx> {
body: &'b mir::Body<'tcx>,
possible_borrower: ResultsCursor<'b, 'tcx, PossibleBorrowerAnalysis<'b, 'tcx>>,
maybe_live: ResultsCursor<'b, 'tcx, MaybeStorageLive>,
pushed: BitSet<Local>,
stack: Vec<Local>,
}
impl<'b, 'tcx> PossibleBorrowerMap<'b, 'tcx> {
@ -239,6 +240,8 @@ impl<'b, 'tcx> PossibleBorrowerMap<'b, 'tcx> {
body: mir,
possible_borrower,
maybe_live,
pushed: BitSet::new_empty(mir.local_decls.len()),
stack: Vec::with_capacity(mir.local_decls.len()),
}
}
@ -269,13 +272,13 @@ impl<'b, 'tcx> PossibleBorrowerMap<'b, 'tcx> {
let possible_borrower = &self.possible_borrower.get().map;
let maybe_live = &self.maybe_live;
let mut queued = BitSet::new_empty(self.body.local_decls.len());
let mut deque = VecDeque::with_capacity(self.body.local_decls.len());
self.pushed.clear();
self.stack.clear();
if let Some(borrowers) = possible_borrower.get(&borrowed) {
for b in borrowers.iter() {
if queued.insert(b) {
deque.push_back(b);
if self.pushed.insert(b) {
self.stack.push(b);
}
}
} else {
@ -283,15 +286,15 @@ impl<'b, 'tcx> PossibleBorrowerMap<'b, 'tcx> {
return true;
}
while let Some(borrower) = deque.pop_front() {
while let Some(borrower) = self.stack.pop() {
if maybe_live.contains(borrower) && !borrowers.contains(&borrower) {
return false;
}
if let Some(borrowers) = possible_borrower.get(&borrower) {
for b in borrowers.iter() {
if queued.insert(b) {
deque.push_back(b);
if self.pushed.insert(b) {
self.stack.push(b);
}
}
}