Contract calls (#19)

crates/integration/contracts/Call.sol

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8;
+
+contract Call {
+    function value_transfer(address payable destination) public payable {
+        destination.transfer(msg.value);
+    }
+
+    function echo(bytes memory payload) public pure returns (bytes memory) {
+        return payload;
+    }
+
+    function call(
+        address callee,
+        bytes memory payload
+    ) public pure returns (bytes memory) {
+        return Call(callee).echo(payload);
+    }
+}

crates/integration/src/cases.rs

@@ -135,6 +135,19 @@ sol!(
     }
 );
 
+sol!(
+    contract Call {
+        function value_transfer(address payable destination) public payable;
+
+        function echo(bytes memory payload) public payable returns (bytes memory);
+
+        function call(
+            address callee,
+            bytes memory payload
+        ) public payable returns (bytes memory);
+    }
+);
+
 impl Contract {
     /// Execute the contract.
     ///
@@ -441,6 +454,42 @@ impl Contract {
             calldata: MCopy::memcpyCall::new((payload,)).abi_encode(),
         }
     }
+
+    pub fn call_value_transfer(destination: Address) -> Self {
+        let code = include_str!("../contracts/Call.sol");
+        let name = "Call";
+
+        Self {
+            name,
+            evm_runtime: crate::compile_evm_bin_runtime(name, code),
+            pvm_runtime: crate::compile_blob(name, code),
+            calldata: Call::value_transferCall::new((destination,)).abi_encode(),
+        }
+    }
+
+    pub fn call_call(callee: Address, payload: Vec<u8>) -> Self {
+        let code = include_str!("../contracts/Call.sol");
+        let name = "Call";
+
+        Self {
+            name,
+            evm_runtime: crate::compile_evm_bin_runtime(name, code),
+            pvm_runtime: crate::compile_blob(name, code),
+            calldata: Call::callCall::new((callee, payload)).abi_encode(),
+        }
+    }
+
+    pub fn call_constructor() -> Self {
+        let code = include_str!("../contracts/Call.sol");
+        let name = "Call";
+
+        Self {
+            name,
+            evm_runtime: crate::compile_evm_bin_runtime(name, code),
+            pvm_runtime: crate::compile_blob(name, code),
+            calldata: Default::default(),
+        }
+    }
 }
 
 #[cfg(test)]