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OnlyDelegateCall

Git Source

This contract implements logic to allow only delegate calls.

State Variables​

_original​

The address of the original contract that was deployed.

address private immutable _original;

Functions​

constructor​

Sets the original contract address.

constructor();

onlyDelegateCall​

Allows only delegate calls.

modifier onlyDelegateCall();

_allowOnlyDelegateCall​

This function checks whether the current call is a delegate call, and reverts if it is not.

  • A private function is used instead of inlining this logic in a modifier because Solidity copies modifiers into every function that uses them. The _original address would get copied in every place the modifier is used, which would increase the contract size. By using a function instead, we can avoid this duplication of code and reduce the overall size of the contract.
function _allowOnlyDelegateCall() private view;