Implemented the PSP22 via pallet-assets chain extension.

.github/workflows/ci.yml

@@ -35,9 +35,12 @@ jobs:
           override: true
           components: rustfmt, clippy
 
-      - name: Build & Run cargo tests
+      - name: Build & Run all default unit tests
         run: |
-          RUSTFLAGS="-D warnings" cargo +nightly test --all-features --workspace -- --test-threads=10
+          RUSTFLAGS="-D warnings" cargo +nightly test --workspace --features test-all -- --test-threads=10
+      - name: Build & Run pallet unit tests
+        run: |
+          RUSTFLAGS="-D warnings" cargo +nightly test --workspace --features psp22_pallet -- --test-threads=10
   examples-builds:
     concurrency:
       group: examples-builds-${{ github.ref }}

Cargo.toml

@@ -61,10 +61,11 @@ std = [
     "openbrush_contracts/std",
     "openbrush_lang/std",
 ]
-access_control = ["openbrush_contracts/access_control"]
 psp22 = ["openbrush_contracts/psp22"]
+psp22_pallet = ["openbrush_contracts/psp22_pallet"]
 psp34 = ["openbrush_contracts/psp34"]
 psp37 = ["openbrush_contracts/psp37"]
+access_control = ["openbrush_contracts/access_control"]
 ownable = ["openbrush_contracts/ownable"]
 payment_splitter = ["openbrush_contracts/payment_splitter"]
 reentrancy_guard = ["openbrush_contracts/reentrancy_guard"]
@@ -73,6 +74,21 @@ timelock_controller = ["openbrush_contracts/timelock_controller"]
 proxy = ["openbrush_contracts/proxy"]
 diamond = ["openbrush_contracts/diamond"]
 
+test-all = [
+    "psp22",
+    # "psp22_pallet", we ignore it during testing. It requries it own run of tests
+    "psp34",
+    "psp37",
+    "access_control",
+    "ownable",
+    "payment_splitter",
+    "reentrancy_guard",
+    "pausable",
+    "timelock_controller",
+    "proxy",
+    "diamond",
+]
+
 [profile.release]
 panic = "abort"
 lto = true

README.md

@@ -127,7 +127,7 @@ but it must be fixed with this [issue](https://github.com/paritytech/ink/issues/
 ### Other Issues open:
 
 * [#[ink::trait_definition] doesn't support generics and default implementation](https://github.com/Supercolony-net/openbrush-contracts/issues/4)
-* [Library provides implementation on Rust level instead of ink! level](https://github.com/Supercolony-net/openbrush-contracts/issues/5)
+* [Library provides implementation in Rust level instead of ink! level](https://github.com/Supercolony-net/openbrush-contracts/issues/5)
 * [List of issues, solving each of them can simplify usage of library](https://github.com/Supercolony-net/openbrush-contracts/issues/8)
 * After [Storage rework](https://github.com/paritytech/ink/pull/1217) we need to refactor upgradeable contracts.
 
@@ -204,7 +204,7 @@ $ yarn build:release
 
 ### Tests
 
-You can run unit tests by `RUSTFLAGS="-D warnings" cargo test --all-features --workspace -- --test-threads=10` command from the root of the directory.
+You can run unit tests by `RUSTFLAGS="-D warnings" cargo +nightly test --workspace --features test-all -- --test-threads=10` command from the root of the directory.
 
 To run integration test you need to start the node with contract-pallet.
 - [Setup and start the node with contract-pallet](https://github.com/paritytech/substrate-contracts-node)

contracts/Cargo.toml

@@ -28,6 +28,8 @@ scale-info = { version = "2", default-features = false, features = ["derive"], o
 
 openbrush = { version = "~2.2.0", package = "openbrush_lang", path = "../lang", default-features = false }
 
+pallet-assets-chain-extension = { git = "https://github.com/Supercolony-net/pallet-assets-chain-extension", default-features = false, features = ["ink"]  }
+
 [lib]
 name = "openbrush_contracts"
 path = "src/lib.rs"
@@ -46,8 +48,10 @@ std = [
     "scale-info/std",
 
     "openbrush/std",
+    "pallet-assets-chain-extension/ink-std",
 ]
 psp22 = []
+psp22_pallet = []
 psp34 = []
 psp37 = []
 access_control = []
@@ -63,4 +67,18 @@ proxy = [
 ]
 diamond = [
     "ownable",
+]
+test-all = [
+    "psp22",
+    # "psp22_pallet", we ignore it during testing. It requries it own run of tests
+    "psp34",
+    "psp37",
+    "access_control",
+    "ownable",
+    "payment_splitter",
+    "reentrancy_guard",
+    "pausable",
+    "timelock_controller",
+    "proxy",
+    "diamond",
 ]

contracts/src/lib.rs

@@ -46,6 +46,8 @@ pub use security::pausable;
 pub use security::reentrancy_guard;
 #[cfg(feature = "psp22")]
 pub use token::psp22;
+#[cfg(feature = "psp22_pallet")]
+pub use token::psp22_pallet;
 #[cfg(feature = "psp34")]
 pub use token::psp34;
 #[cfg(feature = "psp37")]

contracts/src/token/mod.rs

@@ -21,6 +21,8 @@
 
 #[cfg(feature = "psp22")]
 pub mod psp22;
+#[cfg(feature = "psp22_pallet")]
+pub mod psp22_pallet;
 #[cfg(feature = "psp34")]
 pub mod psp34;
 #[cfg(feature = "psp37")]

contracts/src/token/psp22/extensions/flashmint.rs

@@ -37,14 +37,12 @@ use ink_env::{
     CallFlags,
     Error as EnvError,
 };
-use ink_prelude::{
-    string::String,
-    vec::Vec,
-};
+use ink_prelude::vec::Vec;
 use openbrush::traits::{
     AccountId,
     Balance,
     Storage,
+    String,
 };
 
 impl<T: Storage<psp22::Data>> FlashLender for T {

contracts/src/token/psp22/extensions/metadata.rs

@@ -32,8 +32,10 @@ pub use psp22::{
     Transfer as _,
 };
 
-use ink_prelude::string::String;
-use openbrush::traits::Storage;
+use openbrush::traits::{
+    Storage,
+    String,
+};
 
 pub const STORAGE_KEY: u32 = openbrush::storage_unique_key!(Data);
 

contracts/src/token/psp22/psp22.rs

@@ -33,10 +33,7 @@ use ink_env::{
     CallFlags,
     Error as EnvError,
 };
-use ink_prelude::{
-    string::String,
-    vec::Vec,
-};
+use ink_prelude::vec::Vec;
 use openbrush::{
     storage::{
         Mapping,
@@ -47,6 +44,7 @@ use openbrush::{
         AccountIdExt,
         Balance,
         Storage,
+        String,
     },
 };
 

contracts/src/token/psp22_pallet/extensions/burnable.rs

@@ -0,0 +1,42 @@
+// Copyright (c) 2012-2022 Supercolony
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the"Software"),
+// to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+pub use crate::{
+    psp22_pallet,
+    traits::psp22::{
+        extensions::burnable::*,
+        *,
+    },
+};
+pub use pallet_assets_chain_extension::traits::Origin;
+pub use psp22_pallet::Internal as _;
+
+use openbrush::traits::{
+    AccountId,
+    Balance,
+    Storage,
+};
+
+impl<T: Storage<psp22_pallet::Data>> PSP22Burnable for T {
+    default fn burn(&mut self, account: AccountId, amount: Balance) -> Result<(), PSP22Error> {
+        self._burn_from(account, amount)
+    }
+}

contracts/src/token/psp22_pallet/extensions/metadata.rs

@@ -0,0 +1,67 @@
+// Copyright (c) 2012-2022 Supercolony
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the"Software"),
+// to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+pub use crate::{
+    psp22_pallet,
+    psp22_pallet::extensions::metadata,
+    traits::psp22::{
+        extensions::metadata::*,
+        *,
+    },
+};
+use openbrush::traits::{
+    Storage,
+    String,
+};
+pub use pallet_assets_chain_extension::traits::{
+    Origin,
+    PalletAssets,
+};
+pub use psp22_pallet::Internal as _;
+
+impl<T: Storage<psp22_pallet::Data>> PSP22Metadata for T {
+    default fn token_name(&self) -> Option<String> {
+        let self_ = self.data();
+        let name = self_.pallet_assets.metadata_name(self_.asset_id);
+
+        if name.is_empty() {
+            None
+        } else {
+            Some(String::from(name))
+        }
+    }
+
+    default fn token_symbol(&self) -> Option<String> {
+        let self_ = self.data();
+        let symbol = self_.pallet_assets.metadata_symbol(self_.asset_id);
+
+        if symbol.is_empty() {
+            None
+        } else {
+            Some(String::from(symbol))
+        }
+    }
+
+    default fn token_decimals(&self) -> u8 {
+        let self_ = self.data();
+        self_.pallet_assets.metadata_decimals(self_.asset_id)
+    }
+}

contracts/src/token/psp22_pallet/extensions/mintable.rs

@@ -0,0 +1,42 @@
+// Copyright (c) 2012-2022 Supercolony
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the"Software"),
+// to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+pub use crate::{
+    psp22_pallet,
+    traits::psp22::{
+        extensions::mintable::*,
+        *,
+    },
+};
+pub use pallet_assets_chain_extension::traits::Origin;
+pub use psp22_pallet::Internal as _;
+
+use openbrush::traits::{
+    AccountId,
+    Balance,
+    Storage,
+};
+
+impl<T: Storage<psp22_pallet::Data>> PSP22Mintable for T {
+    default fn mint(&mut self, account: AccountId, amount: Balance) -> Result<(), PSP22Error> {
+        self._mint(account, amount)
+    }
+}

contracts/src/token/psp22_pallet/mod.rs

@@ -0,0 +1,30 @@
+// Copyright (c) 2012-2022 Supercolony
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the"Software"),
+// to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+pub mod psp22_pallet;
+
+pub use psp22_pallet::*;
+
+pub mod extensions {
+    pub mod burnable;
+    pub mod metadata;
+    pub mod mintable;
+}