From 0895889b11354e95f71a891d8d8ceee6d336b354 Mon Sep 17 00:00:00 2001
From: kayan <taokayan13@gmail.com>
Date: Fri, 13 Oct 2023 21:56:24 +0800
Subject: [PATCH] add unregtoken

---
 .../contracts/erc20/include/erc20/erc20.hpp           |  2 ++
 antelope_contracts/contracts/erc20/src/erc20.cpp      | 11 +++++++++++
 antelope_contracts/tests/erc20/erc20_tester.hpp       |  8 ++++----
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/antelope_contracts/contracts/erc20/include/erc20/erc20.hpp b/antelope_contracts/contracts/erc20/include/erc20/erc20.hpp
index 776e506..4bf0f5c 100644
--- a/antelope_contracts/contracts/erc20/include/erc20/erc20.hpp
+++ b/antelope_contracts/contracts/erc20/include/erc20/erc20.hpp
@@ -55,6 +55,8 @@ class [[eosio::contract]] erc20 : public contract {
     [[eosio::action]] void setingressfee(eosio::name token_contract, eosio::asset ingress_fee);
     [[eosio::action]] void withdrawfee(eosio::name token_contract, eosio::asset quantity, eosio::name to, std::string memo);
 
+    [[eosio::action]] void unregtoken(eosio::name eos_contract_name, eosio::symbol_code token_symbol_code);
+    
     struct [[eosio::table("implcontract")]] impl_contract_t {
         uint64_t id = 0;
         bytes address;
diff --git a/antelope_contracts/contracts/erc20/src/erc20.cpp b/antelope_contracts/contracts/erc20/src/erc20.cpp
index 897cf61..6cc1eaa 100644
--- a/antelope_contracts/contracts/erc20/src/erc20.cpp
+++ b/antelope_contracts/contracts/erc20/src/erc20.cpp
@@ -424,6 +424,17 @@ void erc20::setegressfee(eosio::name token_contract, eosio::symbol_code token_sy
     call_act.send(receiver_account(), token_table_iter->address, value_zero, call_data, evm_gaslimit);
 }
 
+void erc20::unregtoken(eosio::name token_contract, eosio::symbol_code token_symbol_code) {
+    require_auth(get_self());
+
+    token_table_t token_table(_self, _self.value);
+    auto index_symbol = token_table.get_index<"by.symbol"_n>();
+    auto token_table_iter = index_symbol.find(token_symbol_key(token_contract, token_symbol_code));
+    eosio::check(token_table_iter != index_symbol.end(), "token not registered");
+
+    index_symbol.erase(token_table_iter);
+}
+
 inline eosio::name erc20::receiver_account()const {
     return get_self();
 }
diff --git a/antelope_contracts/tests/erc20/erc20_tester.hpp b/antelope_contracts/tests/erc20/erc20_tester.hpp
index fb9ee9b..c3572e1 100644
--- a/antelope_contracts/tests/erc20/erc20_tester.hpp
+++ b/antelope_contracts/tests/erc20/erc20_tester.hpp
@@ -63,11 +63,11 @@ struct exec_output {
 
 struct token_t {
         uint64_t id = 0;
-        eosio::chain::name token_contract;
+        eosio::chain::name token_contract{};
         bytes address;  // <-- proxy contract addr
-        eosio::chain::asset ingress_fee;
-        eosio::chain::asset balance;  // <-- total amount in EVM side
-        eosio::chain::asset fee_balance;
+        eosio::chain::asset ingress_fee{};
+        eosio::chain::asset balance{};  // <-- total amount in EVM side
+        eosio::chain::asset fee_balance{};
         uint8_t erc20_precision = 0;
 
     };