Ethereum: call getReserves() function using yul in solidity
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Ethereum: Use of the Getreserves () 'function with Yul in Solide
TheGetreServces () ‘function is a crucial part of the intelligent contract architecture of Solana’s blockchain, giving access to reserve assets held by a pair of tokens. The function is problematic and provides a solution using the Yul compiler in Solidity.
The problem with Getreserves2
The `GetreServces () 'function is marked as an external function, which means that it can be called from the outside of the scope of the contract. Indeed,GetreVes () ‘. The “external” keyword is used to indicate that a function should not be called in the contract itself.
However, when this causes a compilation error:
`Solidity
Pragma Solidity ^ 0,8,24;
Pair of contract {
Getreserves () Public ... function ...
// Error: Getreserves2 is an external function and cannot be called directly from this contract.
}
'
The solution: using the Yul compiler
To solve the problem, the "Yul" compiler allows us to transmit a parameter to the function using the keyword "$ arg".
Here is an updated version of the contract
Solidity
Pragma Solidity ^ 0,8,24;
Pair of contract {
Uint64 [] public reserves;
Approach public pairaddress;
Getterves function (address _pairaddress) Returns PUR PURS (UINT64 []) {
// Get the reserve assets for the given pair
Reserves = Getreserves2 (_pairaddress);
}
Getterves2 function (address _pairaddress) Internal refers (uint64 []) {
// Implement the logic to call the Yul compiler and recover reserve assets
// For example:
uint64 [] memory reserves = 0;
// ...
Return reserves;
}
}
'
"Getreservces2" which calls the "Yul" compiler to execute its logic. We
Parameters in a manner compatible with Solana's safety features,
Conclusion
TheGetresubves () ‘function is designed to be secure and private in the contract itself. However, when you call external functions like “GetreServces2”, we must use the Yul compiler to run its logic safely. Using the “Yul” compiler in Solidity, we can call the “Getreserves2” function while ensuring our safety and preventing potential vulnerabilities.
According to this guide, you should now be able to call successfully
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