cashc compiler
- ✨ Covenants abstraction! All individual preimage fields can be accessed without manual decoding, passing, and verification.
- Available fields:
tx.version, tx.hashPrevouts, tx.hashSequence, tx.outpoint, tx.bytecode, tx.value, tx.sequence, tx.hashOutputs, tx.locktime, tx.hashtype.
- When any of these fields is used inside a function, this function is marked
covenant: true, and requires a preimage as parameter (automatically passed by CashScript SDK).
- The correct fields are efficiently cut out of the preimage and made available.
- The first occurrance of
require(checkSig(sig, pubkey)); is identified, and preimage verification is inserted using the same sig/pubkey. Important: if you have multiple checkSig statements, keep in mind that the first will be used for verification.
- Automatically cuts off VarInt from
scriptCode, so tx.bytecode contains the actual contract bytecode.
- ✨ Output instantiation! Automatically construct output formats for covenant transactions.
new OutputP2PKH(bytes8 amount, bytes20 pkh)new OutputP2SH(bytes8 amount, bytes20 scriptHash)
- 🐛 Fix bug with invalid output when the final statement in a contract is an if-statement.
CashScript SDK
- ✨ Add
fee option to TransactionOptions. This allows you to specify a hardcoded fee for your transaction.
- ✨ Automatically pass in sighash preimage into covenant functions. Important: uses the hashtype of the first signature in the parameters for generation of this preimage.
- 💫 Better fee estimation for transactions with many inputs.
https://twitter.com/RoscoKalis/status/1204765863062188033
