add versionize support for more data structures

add versionize support for VecDeque/HashMap/HashSet.

Signed-off-by: Zizheng Bian <[email protected]>

Author: ZizhengBian

src/lib.rs

@@ -17,7 +17,7 @@
 //! `Versionize` trait is implemented for the following primitives:
 //! u8, u16, u32, u64, usize, i8, i16, i32, i64, isize, char, f32, f64,
 //! String, Vec<T>, Arrays up to 32 elements, Box<T>, Wrapping<T>, Option<T>,
-//! FamStructWrapper<T>, and (T, U).
+//! FamStructWrapper<T>, VecDeque<T>, HashMap<K, V>, HashSet<T> and (T, U).
 //!
 //! Known issues and limitations:
 //! - Union serialization is not supported via the `Versionize` proc macro.
@@ -59,6 +59,10 @@ pub enum VersionizeError {
     StringLength(usize),
     /// Vector length exceeded.
     VecLength(usize),
+    /// HashMap length exceeded.
+    HashMapLength(usize),
+    /// HashSet length exceeded.
+    HashSetLength(usize),
 }
 
 impl std::fmt::Display for VersionizeError {
@@ -82,6 +86,18 @@ impl std::fmt::Display for VersionizeError {
                 bad_len,
                 primitives::MAX_VEC_SIZE
             ),
+            HashMapLength(bad_len) => write!(
+                f,
+                "HashMap of length exceeded {} > {} bytes",
+                bad_len,
+                primitives::MAX_HASH_MAP_LEN
+            ),
+            HashSetLength(bad_len) => write!(
+                f,
+                "HashSet of length exceeded {} > {} bytes",
+                bad_len,
+                primitives::MAX_HASH_SET_LEN
+            ),
         }
     }
 }