Get function from abi.decode

Smart Contracts
1

Hi everyone
I want to get external function with abi.encode from another contract and use it to other contract so could you explain me how to do that?

for exampele: I want to get func1 from myContract :

(myContract memory function(uint) returns(address) func1) = abi.decode(_data,(myContract.func1(uint));

Is this line correct or not?If not could you edit that in correct way?
thanks for your attention.

2

Good question but it doesn't seem to be possible. I think this should work if abi.decode supported function types, but it doesn't compile:

contract FooScript is Script {
    function run() public {
        bytes memory d = abi.encode(this.test);
        function (bytes memory) external x = abi.decode(d, (function (bytes memory) external));
    }

    function test(bytes memory a) public {
        console.logBytes(a);
    }
}
3

thanks frangio,
Due to the your answer we can use other contract functions in two ways:
1.inheritance for public and internal functions
2.import contact and we have contract's address like:

myContract("0x...").func1(uint);

for external functions
are these only two ways to use functions from another contract or we have something else?

4

I don't understand what you want to achieve.

An external function pointer is pair of an address and a function selector. You can use that to invoke a function if you know its signature.

5

If you already know the function name/parameters then you can simply create an interface for it that defines that function and then use that in your contract.

6

okey I got it.thanks frangio,CryptoWorld