Merge branch 'multi-coin'

1 files changed, 27 insertions, 0 deletions

diff --git a/examples/multicoin/mc_test.sol b/examples/multicoin/mc_test.sol
new file mode 100644
index 0000000..ec07ee6
--- /dev/null
+++ b/examples/multicoin/mc_test.sol
@@ -0,0 +1,27 @@
+pragma solidity >=0.6.0;
+
+contract MCTest {
+    address constant MultiCoin = 0x0100000000000000000000000000000000000000;
+    uint256 balance;
+    constructor() public {
+        // enable multi-coin functionality (it is disabled by default)
+        (bool success,) = MultiCoin.call(abi.encodeWithSignature("enableMultiCoin()"));
+        require(success);
+    }
+
+    function updateBalance(uint256 coinid) public {
+        (bool success, bytes memory data) = MultiCoin.call(abi.encodeWithSignature("getBalance(uint256)", coinid));
+        require(success);
+        balance = abi.decode(data, (uint256));
+    }
+
+    function withdraw(uint256 amount, uint256 coinid, uint256 amount2) public {
+        (bool success,) = MultiCoin.call(
+            abi.encodeWithSignature("transfer(address,uint256,uint256,uint256)",
+                                    msg.sender, amount, coinid, amount2));
+
+        require(success);
+    }
+
+    receive() external payable {}
+}