STAKE instruction and mechanism in smart contract

[taihaofu]

Background

As mentioned in 156 and 157, TRON need to provide vote and collect SR reward mechanism for smart contract. Motivate contract developer and increase the profit for TRON ecosystem contributors. But FREEZE/VOTE system is not direct for a smart contract. This issue provide a more efficient and direct way to implement a similar functionality for smart contracts.

Implementation

Basically we need at least 2 Instructions:

• STAKE (update stake and vote for a single SR)
• UNSTAKE (cancel stake)

STAKE only available for single SR, and update the whole vote & account state on chain, which means smart contract will only allow single SR staking change in one transaction.

assembly level:
stake(sr_address, trx_amount)
unstake()

[yanghang8612]

The related TIP-171 has been marked as Withdrawn which means that we do not have further implemention plan.
So we close this issue.