[token] token::get_direct_transfer public fun (aptos-labs#5470)

* token::get_direct_transfer public fun

for the purpose of reverting case after using token::opt_in_direct_transfer

* default result for get_direct_transfer

* token::get_direct_transfer is moved

* f

Co-authored-by: Bo Wu <[email protected]>
Co-authored-by: David Wolinsky <[email protected]>

Author: 3 people

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

@@ -68,6 +68,7 @@ Checkout our developer doc on our token standard https://aptos.dev/concepts/coin
 -  [Function `get_token_supply`](#0x3_token_get_token_supply)
 -  [Function `get_tokendata_largest_property_version`](#0x3_token_get_tokendata_largest_property_version)
 -  [Function `get_token_id`](#0x3_token_get_token_id)
+-  [Function `get_direct_transfer`](#0x3_token_get_direct_transfer)
 -  [Function `create_token_mutability_config`](#0x3_token_create_token_mutability_config)
 -  [Function `create_collection_mutability_config`](#0x3_token_create_collection_mutability_config)
 -  [Function `mint_token`](#0x3_token_mint_token)
@@ -3193,6 +3194,34 @@ return the TokenId for a given Token
 
 
 
+</details>
+
+<a name="0x3_token_get_direct_transfer"></a>
+
+## Function `get_direct_transfer`
+
+
+
+<pre><code><b>public</b> <b>fun</b> <a href="token.md#0x3_token_get_direct_transfer">get_direct_transfer</a>(receiver: <b>address</b>): bool
+</code></pre>
+
+
+
+<details>
+<summary>Implementation</summary>
+
+
+<pre><code><b>public</b> <b>fun</b> <a href="token.md#0x3_token_get_direct_transfer">get_direct_transfer</a>(receiver: <b>address</b>): bool <b>acquires</b> <a href="token.md#0x3_token_TokenStore">TokenStore</a> {
+    <b>if</b> (!<b>exists</b>&lt;<a href="token.md#0x3_token_TokenStore">TokenStore</a>&gt;(receiver)) {
+        <b>return</b> <b>false</b>
+    };
+
+    <b>borrow_global</b>&lt;<a href="token.md#0x3_token_TokenStore">TokenStore</a>&gt;(receiver).direct_transfer
+}
+</code></pre>
+
+
+
 </details>
 
 <a name="0x3_token_create_token_mutability_config"></a>

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

@@ -1232,6 +1232,14 @@ module aptos_token::token {
         token.id
     }
 
+    public fun get_direct_transfer(receiver: address): bool acquires TokenStore {
+        if (!exists<TokenStore>(receiver)) {
+            return false
+        };
+
+        borrow_global<TokenStore>(receiver).direct_transfer
+    }
+
     public fun create_token_mutability_config(mutate_setting: &vector<bool>): TokenMutabilityConfig {
         TokenMutabilityConfig {
             maximum: *vector::borrow(mutate_setting, TOKEN_MAX_MUTABLE_IND),