Add switch expression.

src/dynamic.rs

@@ -3,7 +3,7 @@
 use crate::fn_native::{FnPtr, SendSync};
 use crate::r#unsafe::{unsafe_cast_box, unsafe_try_cast};
 use crate::utils::ImmutableString;
-use crate::INT;
+use crate::{StaticVec, INT};
 
 #[cfg(not(feature = "no_closure"))]
 use crate::fn_native::{shared_try_take, Locked, Shared};
@@ -378,10 +378,15 @@ impl Hash for Dynamic {
             #[cfg(not(feature = "no_index"))]
             Union::Array(a) => a.hash(state),
             #[cfg(not(feature = "no_object"))]
-            Union::Map(m) => m.iter().for_each(|(key, item)| {
-                key.hash(state);
-                item.hash(state);
-            }),
+            Union::Map(m) => {
+                let mut buf: StaticVec<_> = m.keys().collect();
+                buf.sort();
+
+                buf.into_iter().for_each(|key| {
+                    key.hash(state);
+                    m[key].hash(state);
+                })
+            }
 
             #[cfg(not(feature = "no_closure"))]
             #[cfg(not(feature = "sync"))]