Add a layer of indirection between excerpt ids and locators

crates/text/src/locator.rs

@@ -3,8 +3,8 @@ use smallvec::{smallvec, SmallVec};
 use std::iter;
 
 lazy_static! {
-    pub static ref MIN: Locator = Locator::min();
-    pub static ref MAX: Locator = Locator::max();
+    static ref MIN: Locator = Locator::min();
+    static ref MAX: Locator = Locator::max();
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
@@ -19,6 +19,14 @@ impl Locator {
         Self(smallvec![u64::MAX])
     }
 
+    pub fn min_ref() -> &'static Self {
+        &*MIN
+    }
+
+    pub fn max_ref() -> &'static Self {
+        &*MAX
+    }
+
     pub fn assign(&mut self, other: &Self) {
         self.0.resize(other.0.len(), 0);
         self.0.copy_from_slice(&other.0);

crates/text/src/text.rs

@@ -1770,9 +1770,9 @@ impl BufferSnapshot {
 
     fn fragment_id_for_anchor(&self, anchor: &Anchor) -> &Locator {
         if *anchor == Anchor::MIN {
-            &locator::MIN
+            Locator::min_ref()
         } else if *anchor == Anchor::MAX {
-            &locator::MAX
+            Locator::max_ref()
         } else {
             let anchor_key = InsertionFragmentKey {
                 timestamp: anchor.timestamp,