Struct StorageOverrides 

pub struct StorageOverrides { /* private fields */ }

Per-account EVM storage slot overrides for dry-run simulations.

Maps 20-byte contract addresses to a set of 32-byte slot → value pairs. Passed via ExecutionOptions::storage_overrides to override on-chain state during a FyndClient::execute_swap dry run.

Example

use fynd_client::StorageOverrides;
use bytes::Bytes;

let mut overrides = StorageOverrides::default();
let contract = Bytes::copy_from_slice(&[0xAA; 20]);
let slot    = Bytes::copy_from_slice(&[0x00; 32]);
let value   = Bytes::copy_from_slice(&[0x01; 32]);
overrides.insert(contract, slot, value);

Implementations

impl StorageOverrides

pub fn insert(&mut self, address: Bytes, slot: Bytes, value: Bytes)

Add a storage slot override for a contract.

• address: 20-byte contract address.
• slot: 32-byte storage slot key.
• value: 32-byte replacement value.

pub fn set_native_balance(&mut self, address: Bytes, wei: BigUint)

Override the native (ETH) balance of an account for dry-run simulation.

Useful when simulating transactions from a synthetic sender that has no real ETH — many nodes (e.g. reth) reject eth_estimateGas if the sender cannot afford gas_limit * max_fee_per_gas.

pub fn merge(&mut self, other: StorageOverrides)

Merge all slot and balance overrides from other into self. Balances in other take precedence on conflict.

Trait Implementations

impl Clone for StorageOverrides

fn clone(&self) -> StorageOverrides

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for StorageOverrides

fn default() -> StorageOverrides

Returns the “default value” for a type.