Introduction

Compared to TRC-20 tokens, TRC-10 tokens face a user experience flexibility issue. In Odyssey 3.2, developers and their smart contract callers can interact with TRC-10 token via smart contracts according to the contract logic, do TRC-10 token transfers in smart contracts, giving them more control to implement their token in business scenarios. Unlike TRC-20 tokens, sending TRC-10 tokens is like transferring TRX in a contract, TRON developers added an interface specifically for TRC-10 transfers and queries in solidity.

Example of transferring trc10 in a contract

pragma solidity ^0.5.0;

contract transferTokenContract {
    constructor() payable public{}
    
    function() payable external {}
    
    function transferTokenTest(address payable toAddress, uint256 tokenValue, trcToken id) payable public    {
        toAddress.transferToken(tokenValue, id);
    }
    
    function msgTokenValueAndTokenIdTest() public payable returns(trcToken, uint256){
        trcToken id = msg.tokenid;
        uint256 value = msg.tokenvalue;
        return (id, value);
    }
    
    function getTokenBalanceTest(address accountAddress) payable public returns (uint256){
        trcToken id = 1000001;
        return accountAddress.tokenBalance(id);
    }
}

TRC10 token type
Odyssey_v3.2 defined a new type (trcToken) for TRC10 token, which represents the tokenId in a token transfer operation. TRC10 token can be converted to uint256 type and vice versa.

trcToken id = 1000001;

TRC10 transfer in contract

address.transferToken(uint256 tokenValue, trcToken tokenId)

Query the TRC10 balance in the contract

address.tokenBalance(trcToken) returns(uint256 tokenAmount)

Odyssey_v3.2 defines a new tokenBalance function for TRC10 token balance query.

TokenValue & TokenID
Msg.tokenvalue, represents the token value in the current msg call, with a default value of 0. Msg.tokenid, represents the token id in current msg call, with a default value of 0.