Struct MethodToken 

pub struct MethodToken {
    pub hash: [u8; 20],
    pub method: String,
    pub parameters_count: u16,
    pub has_return_value: bool,
    pub call_flags: u8,
}

Method token for cross-contract calls in NEF format.

Method tokens are used to optimize calls to other contracts by caching the target contract hash and method information in the NEF header.

Fields

hash: [u8; 20]

Target contract hash (20 bytes, Script Hash)

method: String

Method name to call

parameters_count: u16

Number of parameters the method accepts

has_return_value: bool

Whether the method returns a value

call_flags: u8

Call flags (Neo N3 CallFlags bitmask; All = 0x0F)

Implementations

impl MethodToken

pub fn new( hash: [u8; 20], method: &str, params: u16, has_return: bool, flags: u8, ) -> Self

Create a new method token

pub fn hash_hex(&self) -> String

Get the contract hash as hex string

pub fn allows_state_changes(&self) -> bool

Check if call flags allow state changes

fn serialize(&self, buffer: &mut Vec<u8>)

Serialize the method token to bytes

Trait Implementations

impl Clone for MethodToken

fn clone(&self) -> MethodToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MethodToken

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

Formats the value using the given formatter.