Fix build breakage on linux (#997)

2 files changed, 9 insertions, 0 deletions

diff --git a/Firestore/core/src/firebase/firestore/immutable/sorted_map.h b/Firestore/core/src/firebase/firestore/immutable/sorted_map.h
index 5ed16b3..ef6f54e 100644
--- a/Firestore/core/src/firebase/firestore/immutable/sorted_map.h
+++ b/Firestore/core/src/firebase/firestore/immutable/sorted_map.h
@@ -144,6 +144,7 @@ class SortedMap : public impl::SortedMapBase {
       case Tag::Tree:
         return SortedMap{tree_.insert(key, value)};
     }
+    FIREBASE_UNREACHABLE();
   }
 
   /**
@@ -159,6 +160,7 @@ class SortedMap : public impl::SortedMapBase {
       case Tag::Tree:
         return SortedMap{tree_.erase(key)};
     }
+    FIREBASE_UNREACHABLE();
   }
 
   /** Returns true if the map contains no elements. */
@@ -169,6 +171,7 @@ class SortedMap : public impl::SortedMapBase {
       case Tag::Tree:
         return tree_.empty();
     }
+    FIREBASE_UNREACHABLE();
   }
 
   /** Returns the number of items in this map. */
@@ -179,6 +182,7 @@ class SortedMap : public impl::SortedMapBase {
       case Tag::Tree:
         return tree_.size();
     }
+    FIREBASE_UNREACHABLE();
   }
 
  private:
diff --git a/Firestore/core/src/firebase/firestore/util/firebase_assert.h b/Firestore/core/src/firebase/firestore/util/firebase_assert.h
index 20c8429..6bc0dee 100644
--- a/Firestore/core/src/firebase/firestore/util/firebase_assert.h
+++ b/Firestore/core/src/firebase/firestore/util/firebase_assert.h
@@ -103,6 +103,11 @@
   FIREBASE_DEV_ASSERT_MESSAGE_WITH_EXPRESSION(expression, expression, \
                                               __VA_ARGS__)
 
+// Indicates an area of the code that cannot be reached (except possibly due to
+// undefined behaviour or other similar badness). The only reasonable thing to
+// do in these cases is to immediately abort.
+#define FIREBASE_UNREACHABLE() abort()
+
 namespace firebase {
 namespace firestore {
 namespace util {