hyperledger-solang_solang/tests/contract_testcases/solana/mapping_deletion.sol

contract savedTest {
    uint b;
    constructor(uint d) {
        b = d;
    }

    function increment(uint f) public {
        b += f;
    }
}

contract DeleteTest {
    struct data_struct  {
        address addr1;
	    address addr2;
    }

    mapping(uint => data_struct) example;
    mapping(uint => address) example2;

    function addData(address pid) public  {
        data_struct dt = data_struct({addr1: address(this), addr2: tx.accounts.dataAccount.key});
        uint id = 1;
        example[id] = dt;
        savedTest.new{program_id: pid}(4);
        example2[id] = pid;
    }

    function deltest() external {
        uint id = 1;
        delete example[id];
        //delete example2[id];
    }

    function get() public view returns (data_struct calldata) {
        uint id = 1;
        return example[id];
    }

}
// ---- Expect: diagnostics ----
// error: 25:9-42: accounts are required for calling a contract. You can either provide the accounts with the {accounts: ...} call argument or change this function's visibility to external