Struct registerSloadHookCall 

pub struct registerSloadHookCall {
    pub target: Address,
    pub callback: FixedBytes<4>,
}

Registers a callback invoked after each SLOAD against target’s effective storage account, including when its code runs by delegatecall.

The callback must have the signature function(address,bytes32,bytes32) external. Registering another callback for the same target and access kind replaces it. Registration survives EVM reverts, while callback state follows the enclosing EVM context and rolls back with it. Callback reverts propagate through the storage operation. Hooks are suppressed in the callback and its entire call subtree. The callback must authenticate msg.sender == address(vm) to prevent external spoofing. Callback execution is hidden from mocks, expectations, log recording, and storage-access recording. It does not inherit staticness. The callback runs as an ordinary call frame and consumes one of the 1024 protocol call-depth slots; a load at the maximum legal call depth can have its callback rejected as too deep, propagating as a failure of the load. Function with signature registerSloadHook(address,bytes4) and selector 0x37c7cf5e.

function registerSloadHook(address target, bytes4 callback) external;

Fields

target: Address

callback: FixedBytes<4>

Trait Implementations

impl CheatcodeDef for registerSloadHookCall

const CHEATCODE: &'static Cheatcode<'static>

The static cheatcode definition.

impl Clone for registerSloadHookCall

fn clone(&self) -> registerSloadHookCall

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for registerSloadHookCall

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl JsonAbiExt for registerSloadHookCall

type Abi = Function

The ABI representation of this type.

fn abi() -> Self::Abi

Returns the ABI representation of this type.

impl SolCall for registerSloadHookCall

const SIGNATURE: &'static str = "registerSloadHook(address,bytes4)"

The function’s ABI signature.

const SELECTOR: [u8; 4]

The function selector: keccak256(SIGNATURE)[0..4]

type Parameters<'a> = (Address, FixedBytes<4>)

The underlying tuple type which represents this type’s arguments.

type Token<'a> = <<registerSloadHookCall as SolCall>::Parameters<'a> as SolType>::Token<'a>

The arguments’ corresponding [TokenSeq] type.

type Return = registerSloadHookReturn

The function’s return struct.

type ReturnTuple<'a> = ()

The underlying tuple type which represents this type’s return values.

type ReturnToken<'a> = <<registerSloadHookCall as SolCall>::ReturnTuple<'a> as SolType>::Token<'a>

The returns’ corresponding [TokenSeq] type.

fn new<'a>(tuple: <Self::Parameters<'a> as SolType>::RustType) -> Self

Convert from the tuple type used for ABI encoding and decoding.

fn tokenize(&self) -> Self::Token<'_>

Tokenize the call’s arguments.

fn tokenize_returns(ret: &Self::Return) -> Self::ReturnToken<'_>

Tokenize the call’s return values.

fn abi_decode_returns(data: &[u8]) -> Result<Self::Return>

ABI decode this call’s return values from the given slice.

fn abi_decode_returns_validate(data: &[u8]) -> Result<Self::Return>

ABI decode this call’s return values from the given slice, with validation.

fn abi_encoded_size(&self) -> usize

The size of the encoded data in bytes, without its selector.

fn abi_decode_raw(data: &[u8]) -> Result<Self, Error>

ABI decode this call’s arguments from the given slice, without its selector.

fn abi_decode_raw_validate(data: &[u8]) -> Result<Self, Error>

ABI decode this call’s arguments from the given slice, without its selector, with validation.

fn abi_decode(data: &[u8]) -> Result<Self, Error>

ABI decode this call’s arguments from the given slice, with the selector.

fn abi_decode_validate(data: &[u8]) -> Result<Self, Error>

ABI decode this call’s arguments from the given slice, with the selector, with validation.

fn abi_encode_raw(&self, out: &mut Vec<u8>)

ABI encode the call to the given buffer without its selector.

fn abi_encode(&self) -> Vec<u8>

ABI encode the call to the given buffer with its selector.

fn abi_encode_returns(ret: &Self::Return) -> Vec<u8>

ABI encode the call’s return value.

fn abi_encode_returns_tuple<'a, E>(e: &'a E) -> Vec<u8>

where E: SolTypeValue<Self::ReturnTuple<'a>>,

ABI encode the call’s return values.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes