95 lines
2.0 KiB
Rust
95 lines
2.0 KiB
Rust
use util::hash::*;
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use util::bytes::*;
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use util::uint::*;
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use util::rlp::*;
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#[derive(Eq, PartialEq)]
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pub enum TransactionKind {
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ContractCreation,
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MessageCall
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}
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/// A set of information describing an externally-originating message call
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/// or contract creation operation.
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pub struct Transaction {
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pub nonce: U256,
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pub gas_price: U256,
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pub gas: U256,
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pub to: Option<Address>,
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pub value: U256,
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pub data: Bytes
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}
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impl Transaction {
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pub fn new() -> Self {
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Transaction {
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nonce: U256::zero(),
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gas_price: U256::zero(),
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gas: U256::zero(),
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to: None,
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value: U256::zero(),
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data: vec![]
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}
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}
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/// Returns sender of the transaction.
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/// TODO: implement
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pub fn sender(&self) -> Address {
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Address::new()
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}
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/// Is this transaction meant to create a contract?
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pub fn is_contract_creation(&self) -> bool {
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self.kind() == TransactionKind::ContractCreation
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}
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/// Is this transaction meant to send a message?
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pub fn is_message_call(&self) -> bool {
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self.kind() == TransactionKind::MessageCall
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}
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/// Returns transaction type.
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pub fn kind(&self) -> TransactionKind {
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match self.to.is_some() {
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true => TransactionKind::MessageCall,
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false => TransactionKind::ContractCreation
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}
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}
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/// Get the hash of this transaction.
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pub fn sha3(&self) -> H256 {
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unimplemented!();
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}
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}
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impl Encodable for Transaction {
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fn encode<E>(&self, encoder: &mut E) where E: Encoder {
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encoder.emit_list(| e | {
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self.nonce.encode(e);
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self.gas_price.encode(e);
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self.gas.encode(e);
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self.to.encode(e);
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self.value.encode(e);
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self.data.encode(e);
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})
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}
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}
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impl Decodable for Transaction {
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fn decode<D>(decoder: &D) -> Result<Self, DecoderError> where D: Decoder {
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let d = try!(decoder.as_list());
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let transaction = Transaction {
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nonce: try!(Decodable::decode(&d[0])),
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gas_price: try!(Decodable::decode(&d[1])),
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gas: try!(Decodable::decode(&d[2])),
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to: try!(Decodable::decode(&d[3])),
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value: try!(Decodable::decode(&d[4])),
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data: try!(Decodable::decode(&d[5])),
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};
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Ok(transaction)
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}
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}
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