Test generics and other things

Source/Examples/HashMap.rs

@@ -0,0 +1,28 @@
+use crate::*;
+use std::collections::HashMap as InnerHashMap;
+use std::hash::Hash;
+
+#[derive(Reflect)]
+pub struct HashMap<K, V>
+where
+    K: Reflect + Eq + Hash,
+    V: Reflect,
+{
+    inner: InnerHashMap<K, V>,
+}
+
+impl<K, V> HashMap<K, V>
+where
+    K: Reflect + Eq + Hash,
+    V: Reflect,
+{
+    #[function]
+    pub fn Insert(&mut self, key: K, value: V) -> Option<V> {
+        self.inner.insert(key, value)
+    }
+
+    #[function]
+    pub fn Remove(&mut self, key: &K) -> Option<V> {
+        self.inner.remove(key)
+    }
+}