Auto merge of #61151 - Centril:rollup-5rpyhfo, r=Centril

Rollup of 6 pull requests

Successful merges:

 - #61092 (Make sanitize_place iterate instead of recurse)
 - #61093 (Make borrow_of_local_data iterate instead of recurse)
 - #61094 (Make find_local iterate instead of recurse)
 - #61099 (Make ignore_borrow iterate instead of recurse)
 - #61103 (Make find iterate instead of recurse)
 - #61104 (Make eval_place_to_op iterate instead of recurse)

Failed merges:

r? @ghost

2 files changed, 25 insertions, 21 deletions

diff --git a/src/librustc_mir/dataflow/impls/borrowed_locals.rs b/src/librustc_mir/dataflow/impls/borrowed_locals.rs
index 42c2387b705..65cbc83fbcb 100644
--- a/src/librustc_mir/dataflow/impls/borrowed_locals.rs
+++ b/src/librustc_mir/dataflow/impls/borrowed_locals.rs
@@ -91,16 +91,19 @@ struct BorrowedLocalsVisitor<'b, 'c: 'b> {
 }
 
 fn find_local<'tcx>(place: &Place<'tcx>) -> Option<Local> {
-    match *place {
-        Place::Base(PlaceBase::Local(l)) => Some(l),
-        Place::Base(PlaceBase::Static(..)) => None,
-        Place::Projection(ref proj) => {
-            match proj.elem {
-                ProjectionElem::Deref => None,
-                _ => find_local(&proj.base)
+    place.iterate(|place_base, place_projection| {
+        for proj in place_projection {
+            if proj.elem == ProjectionElem::Deref {
+                return None;
             }
         }
-    }
+
+        if let PlaceBase::Local(local) = place_base {
+            Some(*local)
+        } else {
+            None
+        }
+    })
 }
 
 impl<'tcx, 'b, 'c> Visitor<'tcx> for BorrowedLocalsVisitor<'b, 'c> {
diff --git a/src/librustc_mir/dataflow/move_paths/mod.rs b/src/librustc_mir/dataflow/move_paths/mod.rs
index 6d619793160..7aaf44a8a89 100644
--- a/src/librustc_mir/dataflow/move_paths/mod.rs
+++ b/src/librustc_mir/dataflow/move_paths/mod.rs
@@ -241,21 +241,22 @@ impl MovePathLookup {
     // unknown place, but will rather return the nearest available
     // parent.
     pub fn find(&self, place: &Place<'tcx>) -> LookupResult {
-        match *place {
-            Place::Base(PlaceBase::Local(local)) => LookupResult::Exact(self.locals[local]),
-            Place::Base(PlaceBase::Static(..)) => LookupResult::Parent(None),
-            Place::Projection(ref proj) => {
-                match self.find(&proj.base) {
-                    LookupResult::Exact(base_path) => {
-                        match self.projections.get(&(base_path, proj.elem.lift())) {
-                            Some(&subpath) => LookupResult::Exact(subpath),
-                            None => LookupResult::Parent(Some(base_path))
-                        }
-                    }
-                    inexact => inexact
+        place.iterate(|place_base, place_projection| {
+            let mut result = match place_base {
+                PlaceBase::Local(local) => self.locals[*local],
+                PlaceBase::Static(..) => return LookupResult::Parent(None),
+            };
+
+            for proj in place_projection {
+                if let Some(&subpath) = self.projections.get(&(result, proj.elem.lift())) {
+                    result = subpath;
+                } else {
+                    return LookupResult::Parent(Some(result));
                 }
             }
-        }
+
+            LookupResult::Exact(result)
+        })
     }
 
     pub fn find_local(&self, local: Local) -> MovePathIndex {