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FactoryChild

See FactoryChild.sol for more details.

1. Introduction​

This abstract contract is inherited by all contracts that are deployed through a factory. It provides a reference to the parent factory.

2. Contract Details​

Key Methods:​

  • factory: Returns the parent factory.

3. Key Mechanisms & Concepts​

The rationale behind this contract is to provide a way of extending contracts that are standalone deployable, to be deployed through a factory. Contracts that are factory deployed can also implement other factory related utils, such as AuthorizableChild or DisableableChild.

4. Gotchas​

Constructors​

Contracts which only change from the standalone version is the constructor routine should not create a new instance of the contract, but be considered as another child implementation of the same contract. This is the case of the CollateralJoinDelegatableChild, which is a child implementation of the CollateralJoin contract, that calls the ERC20Votes.delegate method on constructor.

5. Failure Modes​