add Vector::clear

src/datastructures/string.rs

@@ -32,10 +32,17 @@ impl Default for Str {
 }
 
 impl Str {
+    #[must_use]
+    pub fn clear<R>(self, transaction: &mut TransactionHandle<R>) -> Self {
+        Self(self.0.clear(transaction))
+    }
+
+    #[must_use]
     pub fn set<R>(self, transaction: &mut TransactionHandle<R>, s: &str) -> Self {
         Self(self.0.set(transaction, s.as_bytes()))
     }
 
+    #[must_use]
     pub fn get(self, reader: &impl ReaderTrait) -> &str {
         std::str::from_utf8(self.0.get(reader)).unwrap()
     }

src/datastructures/vector.rs

@@ -34,9 +34,19 @@ impl Default for Vector {
 }
 
 impl Vector {
+    #[must_use]
+    pub fn clear<R>(self, transaction: &mut TransactionHandle<R>) -> Self {
+        if !self.data.start.is_null() {
+            transaction.free_range(self.data);
+        }
+
+        Self::new()
+    }
+
+    #[must_use]
     pub fn set<R>(self, transaction: &mut TransactionHandle<R>, s: &[u8]) -> Self {
         let data = if s.is_empty() {
-            Vector::new().data
+            Self::new().data
         } else {
             let (range, data) = transaction.allocate_range(s.len() as u64);
             data.copy_from_slice(s.as_bytes());
@@ -47,7 +57,7 @@ impl Vector {
             transaction.free_range(self.data);
         }
 
-        Vector { data }
+        Self { data }
     }
 
     pub fn get(self, reader: &impl ReaderTrait) -> &[u8] {