simplestorage.rs

use std::cell::RefCell;
use std::str::FromStr;
use std::sync::Arc;

use ethereum_types::{Address, U256};

fn main() {
    env_logger::init();
    let db = Arc::new(cita_vm::state::MemoryDB::new(false));
    let mut state = cita_vm::state::State::new(db).unwrap();
    let code = "6080604052600436106049576000357c0100000000000000000000000000000\
                000000000000000000000000000900463ffffffff16806360fe47b114604e57\
                80636d4ce63c146078575b600080fd5b348015605957600080fd5b506076600\
                4803603810190808035906020019092919050505060a0565b005b3480156083\
                57600080fd5b50608a60aa565b6040518082815260200191505060405180910\
                390f35b8060008190555050565b600080549050905600a165627a7a72305820\
                99c66a25d59f0aa78f7ebc40748fa1d1fbc335d8d780f284841b30e0365acd9\
                60029";
    state.new_contract(
        &Address::from_str("0xBd770416a3345F91E4B34576cb804a576fa48EB1").unwrap(),
        U256::from(10),
        U256::from(1),
        hex::decode(code).unwrap(),
    );
    state.new_contract(
        &Address::from_str("0x1000000000000000000000000000000000000000").unwrap(),
        U256::from(1_000_000_000_000_000u64),
        U256::from(1),
        vec![],
    );

    let block_data_provider: Arc<dyn cita_vm::BlockDataProvider> = Arc::new(cita_vm::BlockDataProviderMock::default());
    let state_data_provider = Arc::new(RefCell::new(state));
    let context = cita_vm::evm::Context::default();
    let config = cita_vm::Config::default();

    let tx = cita_vm::Transaction {
        from: Address::from_str("0x1000000000000000000000000000000000000000").unwrap(),
        to: Some(Address::from_str("0xBd770416a3345F91E4B34576cb804a576fa48EB1").unwrap()),
        value: U256::from(0),
        nonce: U256::from(1),
        gas_limit: 80000,
        gas_price: U256::from(1),
        input: hex::decode("60fe47b1000000000000000000000000000000000000000000000000000000000000002a").unwrap(),
    };
    let r = cita_vm::exec(
        block_data_provider.clone(),
        state_data_provider.clone(),
        context.clone(),
        config.clone(),
        tx,
    )
    .unwrap();
    println!("return={:?}", r);

    let tx = cita_vm::Transaction {
        from: Address::from_str("0x1000000000000000000000000000000000000000").unwrap(),
        to: Some(Address::from_str("0xBd770416a3345F91E4B34576cb804a576fa48EB1").unwrap()),
        value: U256::from(0),
        nonce: U256::from(2),
        gas_limit: 80000,
        gas_price: U256::from(1),
        input: hex::decode("6d4ce63c").unwrap(),
    };
    let r = cita_vm::exec(block_data_provider, state_data_provider, context, config, tx).unwrap();
    println!("return={:?}", r);
}