Why I can't use "this" with "is" relation in Solidity?

[Hiren879]

I am again confusing myself with Java because I have worked for 9 years in the Java ecosystem.
Why can't I use this keyword while using IS relation with the contract?

By default, I should inherit the favoriteNumber variable from the parent contract and then in the child contract I should be able to use it via this rather than using it directly.

contract ExtraStorage is SimpleStorage {

    function store(uint256 _favoriteNumber) public override {
        this.favoriteNumber = _favoriteNumber + 5; // this line will give me an error
    }

}

[krakxn]

In Solidity, there is no such usage of this. this, in Solidity, means the specific instance of the contract being referenced (as a contract can have multiple instances). On type casting this via the datatype address, we get address(this) -- this means the address of the previous instance. Put simply, address(this) is how a contract references itself (its address, whereas this for the instance).

The above (address(this)) is precisely how we "pay" contracts.

[krakxn]

@alymurtazamemon I suppose this is resolved; could you close it?

[alymurtazamemon]

@krakxn Done, I was not available!