hasDefinedHashtype method
Returns true if the hashType is exactly equal to one of the standard options or combinations thereof. Translated from bitcoind's IsDefinedHashtypeSignature
Implementation
bool hasDefinedHashtype() {
if (!(_nhashtype != null && _nhashtype.isFinite && _nhashtype.floor() == _nhashtype && _nhashtype > 0)) {
return false;
}
// accept with or without Signature.SIGHASH_ANYONECANPAY by ignoring the bit
try {
var temp = _nhashtype & 0x1F;
if (temp < SighashType.SIGHASH_ALL.value || temp > SighashType.SIGHASH_SINGLE.value) {
return false;
}
} catch (ex) {
return false;
}
return true;
}