Add support for token extensions (coral-xyz#2789)

.github/workflows/reusable-tests.yaml

@@ -388,6 +388,8 @@ jobs:
             path: spl/token-wrapper
           - cmd: cd tests/spl/transfer-hook && anchor test --skip-lint
             path: spl/transfer-hook
+          - cmd: cd tests/spl/token-extensions && anchor test --skip-lint
+            path: spl/token-extensions
           - cmd: cd tests/multisig && anchor test --skip-lint
             path: tests/multisig
           # - cmd: cd tests/lockup && anchor test --skip-lint

CHANGELOG.md

@@ -43,6 +43,7 @@ The minor version will be incremented upon a breaking change and the patch versi
 - idl: Add `docs` field for constants ([#2887](https://github.com/coral-xyz/anchor/pull/2887)).
 - idl: Store deployment addresses for other clusters ([#2892](https://github.com/coral-xyz/anchor/pull/2892)).
 - lang: Add `Event` utility type to get events from bytes ([#2897](https://github.com/coral-xyz/anchor/pull/2897)).
+- spl: Add support for [token extensions](https://solana.com/solutions/token-extensions) ([#2789](https://github.com/coral-xyz/anchor/pull/2789)).
 
 ### Fixes
 

lang/Cargo.toml

@@ -59,6 +59,5 @@ borsh = ">=0.9, <0.11"
 bytemuck = "1"
 solana-program = "1.16"
 thiserror = "1"
-
 # TODO: Remove. This crate has been added to fix a build error with the 1.16.0 release.
-getrandom = { version = "0.2", features = ["custom"] }
+getrandom = { version = "0.2", features = ["custom"] }

lang/src/error.rs

@@ -126,6 +126,56 @@ pub enum ErrorCode {
     /// 2023 - A mint token program constraint was violated
     #[msg("An associated token account token program constraint was violated")]
     ConstraintAssociatedTokenTokenProgram,
+    /// Extension constraints
+    ///
+    /// 2024 - A group pointer extension constraint was violated
+    #[msg("A group pointer extension constraint was violated")]
+    ConstraintMintGroupPointerExtension,
+    /// 2025 - A group pointer extension authority constraint was violated
+    #[msg("A group pointer extension authority constraint was violated")]
+    ConstraintMintGroupPointerExtensionAuthority,
+    /// 2026 - A group pointer extension group address constraint was violated
+    #[msg("A group pointer extension group address constraint was violated")]
+    ConstraintMintGroupPointerExtensionGroupAddress,
+    /// 2027 - A group member pointer extension constraint was violated
+    #[msg("A group member pointer extension constraint was violated")]
+    ConstraintMintGroupMemberPointerExtension,
+    /// 2028 - A group member pointer extension authority constraint was violated
+    #[msg("A group member pointer extension authority constraint was violated")]
+    ConstraintMintGroupMemberPointerExtensionAuthority,
+    /// 2029 - A group member pointer extension member address constraint was violated
+    #[msg("A group member pointer extension group address constraint was violated")]
+    ConstraintMintGroupMemberPointerExtensionMemberAddress,
+    /// 2030 - A metadata pointer extension constraint was violated
+    #[msg("A metadata pointer extension constraint was violated")]
+    ConstraintMintMetadataPointerExtension,
+    /// 2031 - A metadata pointer extension authority constraint was violated
+    #[msg("A metadata pointer extension authority constraint was violated")]
+    ConstraintMintMetadataPointerExtensionAuthority,
+    /// 2032 - A metadata pointer extension metadata address constraint was violated
+    #[msg("A metadata pointer extension metadata address constraint was violated")]
+    ConstraintMintMetadataPointerExtensionMetadataAddress,
+    /// 2033 - A close authority extension constraint was violated
+    #[msg("A close authority constraint was violated")]
+    ConstraintMintCloseAuthorityExtension,
+    /// 2034 - A close authority extension authority constraint was violated
+    #[msg("A close authority extension authority constraint was violated")]
+    ConstraintMintCloseAuthorityExtensionAuthority,
+    /// 2035 - A permanent delegate extension constraint was violated
+    #[msg("A permanent delegate extension constraint was violated")]
+    ConstraintMintPermanentDelegateExtension,
+    /// 2036 - A permanent delegate extension authority constraint was violated
+    #[msg("A permanent delegate extension delegate constraint was violated")]
+    ConstraintMintPermanentDelegateExtensionDelegate,
+    /// 2037 - A transfer hook extension constraint was violated
+    #[msg("A transfer hook extension constraint was violated")]
+    ConstraintMintTransferHookExtension,
+    /// 2038 - A transfer hook extension authority constraint was violated
+    #[msg("A transfer hook extension authority constraint was violated")]
+    ConstraintMintTransferHookExtensionAuthority,
+    /// 2039 - A transfer hook extension transfer hook program id constraint was violated
+    #[msg("A transfer hook extension transfer hook program id constraint was violated")]
+    ConstraintMintTransferHookExtensionProgramId,
 
     // Require
     /// 2500 - A require expression was violated