Trait StateView 

pub trait StateView {
    // Required method
    fn storage(&self, address: Address, slot: U256) -> Option<U256>;
}

Read-only view of current cached state handed to a decoder.

Decoders that compute post-state from pre-state read through this; stateless decoders (such as the built-in ERC-20 Transfer decoder) ignore it. The view never touches RPC — a slot absent from the cache reads None.

Required Methods

fn storage(&self, address: Address, slot: U256) -> Option<U256>

Current cached value of (address, slot) (overlay ▸ backend ▸ None), matching what the EVM would SLOAD (account_state-aware). None means the slot is cold — neither cache layer has seen it.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl StateView for EvmCache

Read-only state view for the event pipeline (Pillar B.2): a decoder reads the current cached value of a slot through cached_storage_value, which never touches RPC and is account_state-aware (a cold slot reads None).