Allow the tape to be used in a standard serde::Deserialize

src/lib.rs

@@ -846,8 +846,8 @@ impl<'de> Deserializer<'de> {
     }
 
     /// Fills the tape without creating a serializer, this function poses
-    /// lifetime chalanges and can be frustrating, howver when it is
-    /// usable it allows a allocation free (armotized) parsing of JSON
+    /// lifetime challenges and can be frustrating, however when it is
+    /// usable it allows a allocation free (amortized) parsing of JSON
     ///
     /// # Errors
     ///
@@ -922,6 +922,21 @@ impl<'de> Deserializer<'de> {
         Ok(Self { tape, idx: 0 })
     }
 
+    /// Creates a deserializer from a Tape.
+    ///
+    /// # Safety
+    /// The tape is not checked for correctness. The deserializer is only
+    /// guaranteed to operate correctly if the tape came from a previous
+    /// Deserializer (e.g. from one ot the [`crate::to_tape()`] functions), and has
+    /// not been modified.
+    #[must_use]
+    pub unsafe fn from_tape(tape: Tape<'de>) -> Self {
+        Self {
+            tape: tape.0,
+            idx: 0,
+        }
+    }
+
     #[cfg(feature = "serde_impl")]
     #[cfg_attr(not(feature = "no-inline"), inline)]
     fn skip(&mut self) {