Initial InteractiveTxConstructor design

Co-authored-by: Wilmer Paulino <[email protected]>
Co-authored-by: Duncan Dean <[email protected]>
Co-authored-by: Jurvis Tan <[email protected]>

Author: 3 people

lightning/src/events/bump_transaction.rs

@@ -37,11 +37,11 @@ use bitcoin::secp256k1;
 use bitcoin::secp256k1::{PublicKey, Secp256k1};
 use bitcoin::secp256k1::ecdsa::Signature;
 
-const EMPTY_SCRIPT_SIG_WEIGHT: u64 = 1 /* empty script_sig */ * WITNESS_SCALE_FACTOR as u64;
+pub(crate) const EMPTY_SCRIPT_SIG_WEIGHT: u64 = 1 /* empty script_sig */ * WITNESS_SCALE_FACTOR as u64;
 
 const BASE_INPUT_SIZE: u64 = 32 /* txid */ + 4 /* vout */ + 4 /* sequence */;
 
-const BASE_INPUT_WEIGHT: u64 = BASE_INPUT_SIZE * WITNESS_SCALE_FACTOR as u64;
+pub(crate) const BASE_INPUT_WEIGHT: u64 = BASE_INPUT_SIZE * WITNESS_SCALE_FACTOR as u64;
 
 /// The parameters required to derive a channel signer via [`SignerProvider`].
 #[derive(Clone, Debug, PartialEq, Eq)]