cleanup misinformation regarding has_deref

ouz-a · ouz-a · commit 44cd3bcbbad8 · 2023-08-06T17:29:09.000+03:00
diff --git a/clippy_lints/src/dereference.rs b/clippy_lints/src/dereference.rs
@@ -1170,7 +1170,7 @@ fn referent_used_exactly_once<'tcx>(
         && let [location] = *local_assignments(mir, local).as_slice()
         && let Some(statement) = mir.basic_blocks[location.block].statements.get(location.statement_index)
         && let StatementKind::Assign(box (_, Rvalue::Ref(_, _, place))) = statement.kind
-        && !place.has_deref()
+        && !place.is_indirect_first_projection()
         // Ensure not in a loop (https://github.com/rust-lang/rust-clippy/issues/9710)
         && TriColorDepthFirstSearch::new(&mir.basic_blocks).run_from(location.block, &mut CycleDetector).is_none()
     {

Original file line number	Diff line number	Diff line change
`@@ -1170,7 +1170,7 @@ fn referent_used_exactly_once<'tcx>(`
`1170`	`1170`	`&& let [location] = *local_assignments(mir, local).as_slice()`
`1171`	`1171`	`&& let Some(statement) = mir.basic_blocks[location.block].statements.get(location.statement_index)`
`1172`	`1172`	`&& let StatementKind::Assign(box (_, Rvalue::Ref(_, _, place))) = statement.kind`
`1173`		`- && !place.has_deref()`
	`1173`	`+ && !place.is_indirect_first_projection()`
`1174`	`1174`	`// Ensure not in a loop (https://github.com/rust-lang/rust-clippy/issues/9710)`
`1175`	`1175`	`&& TriColorDepthFirstSearch::new(&mir.basic_blocks).run_from(location.block, &mut CycleDetector).is_none()`
`1176`	`1176`	`{`