Struct EvmCallDecoder 

pub struct EvmCallDecoder { /* private fields */ }

EVM function-call decoder.

Accepts an ABI JSON string (standard Ethereum ABI JSON format) and decodes raw calldata into structured DecodedCall or DecodedConstructor results.

Implementations

impl EvmCallDecoder

pub fn from_abi_json(abi_json: &str) -> Result<Self, DecodeError>

Create a decoder from a standard Ethereum ABI JSON string.

Errors

Returns DecodeError if the JSON is not valid ABI JSON.

pub fn decode_call( &self, calldata: &[u8], function_name: Option<&str>, ) -> Result<DecodedCall, DecodeError>

Decode a function call from raw calldata bytes.

If function_name is provided, the selector is validated against that function. Otherwise the selector is matched against all functions in the ABI.

Arguments

• calldata - full calldata including the 4-byte selector prefix
• function_name - optional hint to match a specific function

pub fn decode_constructor( &self, calldata: &[u8], ) -> Result<DecodedConstructor, DecodeError>

Decode constructor calldata (no selector prefix).

Arguments

• calldata - raw constructor arguments (ABI-encoded, no 4-byte prefix)

pub fn function_names(&self) -> Vec<&str>

Returns all function names in this ABI.

pub fn selector_for(&self, name: &str) -> Option<[u8; 4]>

Returns the 4-byte selector for a named function.