Returning multiple values in a function

[derekzx]

Version Information

• vyper Version: 0.1.0
• OS: 18.04

What's your issue about?

Unable to set tuples aka #605

Please include information like:

• full output of the error you received
  test_a remains as 100

• what command you ran
  checking events emitted using truffle
  truffle test

• the code that caused the failure

Creation: event({
    _test_a: uint256
})
test_a : uint256
test_b : uint256
test_c : uint256
test_x : uint256


@public
def __init__():
    self.test_a = 100
    
@public
def test1() -> (uint256, uint256):
    log.Creation(self.test_x)
    return (1,2)

@public
def test():
    (self.test_b, self.test_a) = self.test1()
    log.Creation(self.test_a)
    log.Creation(self.test_b)

Test Code:

const test = artifacts.require("test");
const assert = require("chai").assert;
const truffleAssert = require('truffle-assertions');

contract("test", (accounts) => {
    let test1;
    const fundingAccount = accounts[0];

    beforeEach(async () => {
        test1 = await test.new({from: fundingAccount});
    });
    
    it("should receive event", async() => {
        let tx = await test1.test();
        truffleAssert.eventEmitted(tx, 'Creation', (ev) => {
            return ev._test_a == 2;
        });
    });
});

I am not sure whether I did it wrong but the goal would be to set 2 variables at once.

Cute Animal Picture

[derekzx]

Referenced #1113 .

Unable to work ONLY when setting global variables. In-function variables are able to be changed.

##...code before

@public
def test():
    c : uint256
    d : uint256
    e : uint256
    d , e = self.test1()
##more code after ....

Is able to work but my previous post is still unable to work