feat(erc20): add ERC20Burnable to example

OpenZeppelin · Apr 9, 2024 · 43e4341 · 43e4341
1 parent c4f2ed0
commit 43e4341
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Showing 4 changed files with 18 additions and 3 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/contracts/src/erc20/extensions/burnable.rs b/contracts/src/erc20/extensions/burnable.rs
@@ -1,3 +1,7 @@
+//! Optional Burnable extension of the ERC-20 standard.
+#[macro_export]
+/// This macro provides implementation of ERC-20 Burnable extension.
+/// It adds `burn` and `burn_from` function.
 macro_rules! derive_erc20_burnable {
     () => {
         /// Destroys a `value` amount of tokens from the caller.

diff --git a/examples/erc20/Cargo.toml b/examples/erc20/Cargo.toml
@@ -7,7 +7,8 @@ publish = false
 version = "0.0.0"
 
 [dependencies]
-contracts = { path = "../../contracts", features = ["erc20", "erc20_metadata"] }
+contracts = { path = "../../contracts", features = ["erc20_metadata", "erc20_burnable"] }
+alloy-primitives.workspace = true
 stylus-sdk.workspace = true
 stylus-proc.workspace = true
 mini-alloc.workspace = true

diff --git a/examples/erc20/src/lib.rs b/examples/erc20/src/lib.rs
@@ -3,8 +3,15 @@ extern crate alloc;
 
 use alloc::string::String;
 
-use contracts::erc20::{extensions::Metadata, ERC20};
-use stylus_sdk::prelude::{entrypoint, external, sol_storage};
+use alloy_primitives::{Address, U256};
+use contracts::{
+    derive_erc20_burnable,
+    erc20::{extensions::Metadata, Error, ERC20},
+};
+use stylus_sdk::{
+    msg,
+    prelude::{entrypoint, external, sol_storage},
+};
 
 const DECIMALS: u8 = 10;
 
@@ -21,6 +28,8 @@ sol_storage! {
 #[external]
 #[inherit(ERC20, Metadata)]
 impl Token {
+    derive_erc20_burnable!();
+
     pub fn constructor(&mut self, name: String, symbol: String) {
         self.metadata.constructor(name, symbol);
     }