Error "execution reverted"

[dappstatus]

I try to use "$token->name()" in a loop. It works most of the time. But sometimes i run into an error "execution reverted".
Any idea how to handle this?

This is an example transaction / address where it happens.
Transaction: https://etherscan.io/tx/0x15bc9ee5c237f381dca60c1be0e8fee470a1491c5fe62b967d9e5cf3d1c698d0
Address: 0x656acfd86be535353f0a08a327368ccf7304e819

[lessmore92]

0x656acfd86be535353f0a08a327368ccf7304e819 seems it is not standard ERC20 contract, that not support name method

[dappstatus]

The contract is 0x15bc9ee5c237f381dca60c1be0e8fee470a1491c5fe62b967d9e5cf3d1c698d0
0x656acfd86be535353f0a08a327368ccf7304e819 is the address that is used to get the token name from.

[dappstatus]

If you check the logs of that contract https://etherscan.io/tx/0x15bc9ee5c237f381dca60c1be0e8fee470a1491c5fe62b967d9e5cf3d1c698d0
You can see it has 5 logs.
I have a loop for the logs to check all the names of each log entry. The first 3 log entries work. Number 4 with the log address 0x656acfd86be535353f0a08a327368ccf7304e819 shows the error.

[lessmore92]

0x15bc9ee5c237f381dca60c1be0e8fee470a1491c5fe62b967d9e5cf3d1c698d0 is Transaction ID and Contarct is 0x656acfd86be535353f0a08a327368ccf7304e819

[dappstatus]

Oh you are right. It's late here :D
Anyways. Any idea how i can handle this in my loop? Since the first 3 logs work and the error only appears on the 4th log address. You say it's not an ERC20 standard that supports name, how can i avoid the error in that case?

Is there a way to check if the address support ->name() before actually using it? Because if i use it, it triggers the error and stops my loop, how to know before using it?

[lessmore92]

As simple solution you can catch the RuntimeException Exception