multiversx-chain-vm 0.23.0

MultiversX VM implementation and tooling
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

use num_bigint::BigUint;

use crate::{builtin_functions::BuiltinFunctionContainer, types::Address};

use super::{CallType, TxResult, TxTokenTransfer, async_call_tx_input};

#[derive(Default, Debug)]
pub struct BackTransfers {
    pub call_value: BigUint,
    pub esdt_transfers: Vec<TxTokenTransfer>,
}

impl BackTransfers {
    pub fn empty() -> Self {
        BackTransfers::default()
    }

    pub fn new_from_result(
        &mut self,
        own_address: &Address,
        result: &TxResult,
        builtin_functions: &BuiltinFunctionContainer,
    ) {
        let mut bt = BackTransfers::default();

        for call in &result.all_calls {
            // TODO: refactor, check type

            if call.endpoint_name.is_empty() {
                bt.call_value += &call.call_value;
                continue;
            }

            let tx_input = async_call_tx_input(call, CallType::BackTransfer);
            let mut token_transfers = builtin_functions.extract_token_transfers(&tx_input);
            if &token_transfers.real_recipient == own_address {
                bt.esdt_transfers.append(&mut token_transfers.transfers);
            }
        }

        self.call_value = bt.call_value;
        self.esdt_transfers = bt.esdt_transfers;
    }
}