Token2022: Define extensions module structure

programs/token-2022/src/instructions/extensions/mod.rs

@@ -0,0 +1,38 @@
+pub mod cpi_guard;
+pub mod default_account_state;
+pub mod group_member_pointer;
+pub mod group_pointer;
+pub mod interest_bearing_mint;
+pub mod memo_transfer;
+pub mod metadata_pointer;
+pub mod pausable;
+pub mod permanent_delegate;
+pub mod scaled_ui_amount;
+pub mod token_group;
+pub mod transfer_hook;
+
+#[repr(u8)]
+pub(crate) enum ExtensionDiscriminator {
+    /// Default Account State extension
+    DefaultAccountState = 28,
+    /// Memo Transfer extension
+    MemoTransfer = 30,
+    /// Interest-Bearing Mint extension
+    InterestBearingMint = 33,
+    /// CPI Guard extension
+    CpiGuard = 34,
+    /// Permanent Delegate extension
+    PermanentDelegate = 35,
+    /// Transfer Hook extension
+    TransferHook = 36,
+    /// Metadata Pointer extension
+    MetadataPointer = 39,
+    /// Group Pointer extension
+    GroupPointer = 40,
+    /// Group Member Pointer extension
+    GroupMemberPointer = 41,
+    /// Scaled UI Amount extension
+    ScaledUiAmount = 43,
+    /// Pausable extension
+    Pausable = 44,
+}

programs/token-2022/src/instructions/mod.rs

@@ -3,6 +3,7 @@ mod approve_checked;
 mod burn;
 mod burn_checked;
 mod close_account;
+mod extensions;
 mod freeze_account;
 mod initialize_account;
 mod initialize_account_2;
@@ -25,6 +26,7 @@ pub use approve_checked::*;
 pub use burn::*;
 pub use burn_checked::*;
 pub use close_account::*;
+pub use extensions::*;
 pub use freeze_account::*;
 pub use initialize_account::*;
 pub use initialize_account_2::*;