Trait multiversx_chain_vm::tx_execution::BuiltinFunction

pub trait BuiltinFunction {
    // Required methods
    fn name(&self) -> &str;
    fn execute<F>(
        &self,
        tx_input: TxInput,
        tx_cache: TxCache,
        vm: &BlockchainVMRef,
        lambda: F
    ) -> (TxResult, BlockchainUpdate)
       where F: FnOnce();

    // Provided method
    fn extract_esdt_transfers(
        &self,
        tx_input: &TxInput
    ) -> BuiltinFunctionEsdtTransferInfo { ... }
}

Required Methods

fn name(&self) -> &str

Function name corresponding the builtin function implementation.

Currently not used.

fn execute<F>( &self, tx_input: TxInput, tx_cache: TxCache, vm: &BlockchainVMRef, lambda: F ) -> (TxResult, BlockchainUpdate)where F: FnOnce(),

Executes builtin function for the givn TxInput and with access to the underlying contracts states via the TxCache.

A few builtin functions (the ones transferring ESDT) can also call the VM after they finish, so they are given the extra reference to the VM and a lambda closure to execute on the VM

Provided Methods

fn extract_esdt_transfers( &self, tx_input: &TxInput ) -> BuiltinFunctionEsdtTransferInfo

Extracts data relating ESDT transfers handled by the builtin function, if applicable.

Object Safety

This trait is not object safe.

Implementors