TRC: Trigger constant contract

[llwslc]

tip: 31
title: TRC-31 Trigger constant contract
author: llwslc<llwslc@gmail.com> 
discussions to: https://github.com/tronprotocol/TIPs/issues/31
category: TRC
status: in process
created: 2019-4-3

Abstract

This TIP specifies a new api, which triggers the constant contract without ABI.

Motivation

Many developers hope not upload the ABI, and trigger the contract by their judgment.

Specification

A new api, triggerConstantContract, is introduced.

// api.proto
rpc TriggerConstantContract (TriggerSmartContract) returns (TransactionExtention) {}

The triggerConstantContract parameters are the same as the triggerContract.

triggerConstantContract contract_address method args isHex

Http interface example:

curl -X POST  http://127.0.0.1:8090/wallet/triggerconstantcontract -d {"contract_address":"4189139CB1387AF85E3D24E212A008AC974967E561","function_selector":"foo(uint256,uint256)","parameter":"00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002","owner_address":"41D1E7A6BC354106CB410E65FF8B181C600FF14292"}'

In case the type of method is not constant will gets error.

Backwards Compatibility

There are no backwards compatibility concerns.

Test Cases

1. Trigger the constant method by triggerConstantContract.
2. Trigger the non-constant method by triggerConstantContract.

[taihaofu]

Good point! I like the idea to explicitly trigger constant function. So, how would you deal with our origin triggerSmartContract? Should we simply keep it the same as before?

[BlueHoopor]

What happens when encounter the following situations?

1. triggerConstantContract a non-constant function with ABI
2. triggerConstantContract a non-constant function without ABI
3. triggerConstantContract a constant function with ABI
4. triggerConstantContract a constant function without ABI
5. triggerContract a non-constant function with ABI
6. triggerContract a non-constant function without ABI
7. triggerContract a constant function with ABI
8. triggerContract a constant function without ABI

[llwslc]

1. triggerConstantContract a non-constant function with ABI throw an exception.
2. triggerConstantContract a non-constant function without ABI throw an exception.
3. triggerConstantContract a constant function with ABI return results.
4. triggerConstantContract a constant function without ABI return results.
5. triggerContract a non-constant function with ABI push transactions on Blockchain.
6. triggerContract a non-constant function without ABI push transactions on Blockchain.
7. triggerContract a constant function with ABI return results.
8. triggerContract a constant function without ABI push transactions on Blockchain.

[jiangyy0824]

#11