[framework][simple] Add method to mutate PropertyMap before storing

aptos-move/framework/aptos-token-objects/doc/property_map.md

@@ -39,6 +39,7 @@ represent types and storing values in bcs format.
 -  [Function `add`](#0x4_property_map_add)
 -  [Function `add_typed`](#0x4_property_map_add_typed)
 -  [Function `add_internal`](#0x4_property_map_add_internal)
+-  [Function `add_typed_to_struct`](#0x4_property_map_add_typed_to_struct)
 -  [Function `update`](#0x4_property_map_update)
 -  [Function `update_typed`](#0x4_property_map_update_typed)
 -  [Function `update_internal`](#0x4_property_map_update_internal)
@@ -67,7 +68,7 @@ should keep track of what keys are what types, and parse them accordingly.
 
 
 <pre><code>#[resource_group_member(#[group = <a href="../../aptos-framework/doc/object.md#0x1_object_ObjectGroup">0x1::object::ObjectGroup</a>])]
-<b>struct</b> <a href="property_map.md#0x4_property_map_PropertyMap">PropertyMap</a> <b>has</b> drop, key
+<b>struct</b> <a href="property_map.md#0x4_property_map_PropertyMap">PropertyMap</a> <b>has</b> drop, store, key
 </code></pre>
 
 
@@ -1129,6 +1130,31 @@ Add a property that isn't already encoded as a <code><a href="../../aptos-framew
 
 
 
+</details>
+
+<a id="0x4_property_map_add_typed_to_struct"></a>
+
+## Function `add_typed_to_struct`
+
+
+
+<pre><code><b>public</b> <b>fun</b> <a href="property_map.md#0x4_property_map_add_typed_to_struct">add_typed_to_struct</a>&lt;T: drop&gt;(<a href="property_map.md#0x4_property_map">property_map</a>: &<b>mut</b> <a href="property_map.md#0x4_property_map_PropertyMap">property_map::PropertyMap</a>, key: <a href="../../aptos-framework/../aptos-stdlib/../move-stdlib/doc/string.md#0x1_string_String">string::String</a>, value: T)
+</code></pre>
+
+
+
+<details>
+<summary>Implementation</summary>
+
+
+<pre><code><b>public</b> <b>fun</b> <a href="property_map.md#0x4_property_map_add_typed_to_struct">add_typed_to_struct</a>&lt;T: drop&gt;(<a href="property_map.md#0x4_property_map">property_map</a>: &<b>mut</b> <a href="property_map.md#0x4_property_map_PropertyMap">PropertyMap</a>, key: String, value: T) {
+    <b>let</b> type = <a href="property_map.md#0x4_property_map_type_info_to_internal_type">type_info_to_internal_type</a>&lt;T&gt;();
+    <a href="../../aptos-framework/../aptos-stdlib/doc/simple_map.md#0x1_simple_map_add">simple_map::add</a>(&<b>mut</b> <a href="property_map.md#0x4_property_map">property_map</a>.inner, key, <a href="property_map.md#0x4_property_map_PropertyValue">PropertyValue</a> { type, value: <a href="../../aptos-framework/../aptos-stdlib/../move-stdlib/doc/bcs.md#0x1_bcs_to_bytes">bcs::to_bytes</a>(&value)});
+}
+</code></pre>
+
+
+
 </details>
 
 <a id="0x4_property_map_update"></a>

aptos-move/framework/aptos-token-objects/sources/property_map.move

@@ -51,7 +51,7 @@ module aptos_token_objects::property_map {
     #[resource_group_member(group = aptos_framework::object::ObjectGroup)]
     /// A Map for typed key to value mapping, the contract using it
     /// should keep track of what keys are what types, and parse them accordingly.
-    struct PropertyMap has drop, key {
+    struct PropertyMap has drop, key, store {
         inner: SimpleMap<String, PropertyValue>,
     }
 
@@ -315,6 +315,11 @@ module aptos_token_objects::property_map {
         simple_map::add(&mut property_map.inner, key, PropertyValue { type, value });
     }
 
+    public fun add_typed_to_struct<T: drop>(property_map: &mut PropertyMap, key: String, value: T) {
+        let type = type_info_to_internal_type<T>();
+        simple_map::add(&mut property_map.inner, key, PropertyValue { type, value: bcs::to_bytes(&value)});
+    }
+
     /// Updates a property in place already bcs encoded
     public fun update(ref: &MutatorRef, key: &String, type: String, value: vector<u8>) acquires PropertyMap {
         let new_type = to_internal_type(type);

aptos-move/move-examples/token_objects/ambassador/sources/ambassador.move

@@ -234,12 +234,8 @@ module ambassador::ambassador {
 
         // Initialize the property map and the ambassador rank as Bronze
         let properties = property_map::prepare_input(vector[], vector[], vector[]);
+        property_map::add_typed_to_struct(&mut properties, string::utf8(b"Rank"), string::utf8(RANK_BRONZE));
         property_map::init(&constructor_ref, properties);
-        property_map::add_typed(
-            &property_mutator_ref,
-            string::utf8(b"Rank"),
-            string::utf8(RANK_BRONZE)
-        );
 
         // Publishes the AmbassadorToken resource with the refs.
         let ambassador_token = AmbassadorToken {