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I will help you write an article on how the Ethereum representation contract interacts with the storage variables of the implementation contracts.
Ethereum power contract: understanding of storage variables interactions
In the field of intelligent contract in Ethereum, the representation contract plays a crucial role in the execution of functions and interact with external data stores. One of the key aspects of this interaction is how proxies obtain storage variables of implementation contracts. In this article, we will deepen the details of this process.
Proxy delegatecall contract
A power contract uses Delegate-Call to execute functions on behalf of its owner. This approach allows representatives to interact with other intelligent contracts and data stores without depending on direct access to them. When a proxy calls a function in another contract that uses delegate, it essentially delegates the execution of that function to the destination.
Storage variables in implementation contracts
In Ethereum -based implementation contracts (ICS), storage variables are used to store data to which other intelligent contracts or functions during their execution cycle can access. These variables are generally implemented as constants or variables within the IC and are stored in the chain in the chain, which means that they exist directly in the Ethereum block chain.
Variable interactions for the proxy contract
Now, consider how a power contract obtains storage variables of an implementation contract. When a proxy calls a function in another contract that uses Delegate-Call, you may need access to the storage variables defined within that implementation contract. This is where things get interesting:
- Variables of Delegatecall and Storage : When a proxy executes a function call in another contract, it receives a delegatecall object as an entry. This Delegatecall object contains information about the destination function, including its memory address, return address and other details.
- Access storage variables : To access the storage variables defined within an implementation contract, a power contract must first obtain the delegatecall object containing those variables. Once in control of the call delegate, the contract of power can manipulate the Delegatecall object to extract the desired data from the memory function.
- Details of the proxy contract
: The details of implementation of how the proxy contract accesses the storage variables of an IC is not publicly exposed and are considered private information. This means that even developers familiar with the development of Ethereum cannot directly implement or understand this process without extensive knowledge of the architecture of intelligent contracts, particularly with regard to representation contracts.
- Types of storage variables : Storage variables in implementation contracts can be of various types (for example, whole, chain, Boolean), allowing different levels of data manipulation and storage management and within the IC. The specific type of variable that is accessed by a proxy contract will depend on its implementation details.
- Resented attacks : It is worth pointing out that accessing storage variables from implementation contracts can introduce reset risks if they are not handled correctly. Re -entry occurs when one function calls another function, which in turn can call the first function again during the same execution cycle, which potentially leads to infinite loops or involuntary behavior.
Conclusion
In conclusion, the interaction with the storage variables defined within the implementation contracts in Ethereum implies the use of Delegate-Call and manipulate the Delegatecall object returned by the function of the destination contract. This process requires a good understanding of intelligent contract architecture, specifically power contracts, implementation details and types of storage variables.
