Compiling failed with aesophia 6.0

LiuYang.chain · May 27, 2021, 3:12pm

aeternity/aeternity/blob/master/test/contracts/remote_call.aes


contract interface Remote1 =
  entrypoint main_ : (int) => int

contract interface Remote2 =
  entrypoint call : (Remote1, int) => int

contract interface Remote3 =
  entrypoint get : () => int
  entrypoint tick : () => unit

contract RemoteCall =

    stateful payable entrypoint call(r : Remote1, x : int) : int =
        r.main_(gas = 10000, value = 10, x)

    entrypoint staged_call(r1 : Remote1, r2 : Remote2, x : int) =
        r2.call(r1, x)

    payable entrypoint increment(r3 : Remote3) =

This file has been truncated. show original

(Sorry that it is this contract)

This contract could be compiled with aesophia 4.2, but with the latest 6.0, it reports:

Parse error in ‘contracts\deploy\remotecall.aes’ at line 2, col 14:
Unexpected token ‘main’.

Did I miss something?

ae-omar · May 27, 2021, 6:08pm

Hi Liu, how are you doing the contract call?

LiuYang.chain · May 27, 2021, 10:46pm

Thanks~I was just upgrading the Sophia compiler(aesophia_cli) of aeknow.chain(GitHub - jdgcs/aeknow.chain: AEKnow.chain is designed to be a totally decentralized SNS aepp, based on Aeternity, AENS, Hugo and IPFS) to the latest version 6.0.0 and met the issue.

Everything seems fine with the old version 4.2 compiler aesophia_cli, including the calling of AEX9 contracts.

ae-omar · May 28, 2021, 12:00am

LiuYang.chain:

contract Remote1 =
  function main : (int) => int

contract Remote2 =
  function call : (Remote1, int) => int

contract Remote3 =
  function get : () => int
  function tick : () => ()

contract RemoteCall =

    stateful function call(r : Remote1, x : int) : int =
        r.main(gas = 10000, value = 10, x)

    function staged_call(r1 : Remote1, r2 : Remote2, x : int) =
        r2.call(r1, x)

    function increment(r3 : Remote3) =

Contract interfaces must be now invocated by contract interface keywords
main keyword to indicate the main contract in case there are child contracts around

From Release v6.0.0 · aeternity/aesophia · GitHub

May be @hanssv.chain or @radrow.chain can bring us more info.

Baixin.chain · May 28, 2021, 1:21am

The AEX9 contract seems to fail after the compiler is upgraded
@hanssv.chain My teacher, you can also have a look

LiuYang.chain · May 28, 2021, 1:50am

Thanks very much!

It’s fine now.

I added

main contract …

to the contract, and changed the func’s name, it was compiled successfully.

radrow.chain · May 28, 2021, 12:39pm

Yeah, with the 6.0.0 version the syntax has changed a little bit. Now the interfaces must be annotated with interface keyword in order to distinguish them from child contracts. Moreover if there are any child contracts present, the main contract must be invocated with main contract instead of just contract.