Struct Input

The input of the transaction, which spends a previously received Output

struct Input ;

Constructors

NameDescription
this (utxo_, unlock, unlock_age) Simple ctor
this (txhash, index, unlock_age) Ctor which does hashing based on index
this (tx, index, unlock_age) Ctor which does hashing based on the Transaction and index
this (height) Ctor to create dummy inputs for Coinbase TXs

Fields

NameTypeDescription
unlock UnlockThe unlock script, which will be ran together with the matching Input's lock script in the execution engine
unlock_age uintThe UTXO this Input references must be at least unlock_age older than the block height at which the spending transaction wants to be included in the block. Use for implementing relative time locks.
utxo geod24.bitblob.BitBlob!(64L)The hash of the UTXO to be spent

Methods

NameDescription
computeHash (dg) Implements hashing support
opCmp (rhs) Support for sorting
sizeInBytes () The size of the Input object

Example

Transaction type serialize & deserialize for unittest 

testSymmetry!Transaction();

Transaction payment_tx = Transaction(
    [Input(Hash.init, 0)],
    [Output(Amount(20), Lock.init)]
);
testSymmetry(payment_tx);

Transaction freeze_tx = Transaction(
    [Input(Hash.init, 0)],
    [Output(Amount(20), Lock.init, OutputType.Freeze)]
);
testSymmetry(freeze_tx);

Transaction data_tx = Transaction(
    [Input(Hash.init, 0)],
    [Output.init],
    [1,2,3],
);
testSymmetry(data_tx);

Transaction cb_tx = Transaction(
    [Input(Height(0))],
    [Output(Amount(20), Lock.init, OutputType.Coinbase)]);
testSymmetry(cb_tx);

Example

Transaction type hashing for unittest 

Transaction payment_tx = Transaction(
    [Input(Hash.init, 0)],
    [Output.init]
);

Transaction freeze_tx = Transaction(
    [Input(Hash.init, 0)],
    [Output(Amount(20), Lock.init, OutputType.Freeze)]
);

assert(payment_tx.hashFull() != freeze_tx.hashFull());