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Merge rust-bitcoin/rust-bitcoin#1629: Add methods for pushing locktimes 

1e0e712bb0 Add push_* methods for lock times (Tobin C. Harding)

Pull request description:

  Lock times are `u32` and can require encoding using 5 bytes.

  Add methods `push_lock_time` and `push_sequence` for pushing absolute lock times and sequence numbers. We do not push relative locktimes because they are only 16 bits from the original sequence number.

ACKs for top commit:
  Kixunil:
    ACK 1e0e712bb0
  apoelstra:
    ACK 1e0e712bb0

Tree-SHA512: 4b511679270e7ef73937259ccf7d1b9b4b7512b2464f302310519a6e02d55c9cc24e3559302aeb671156e68130478258c1c565f474880e8be708b0ee234e67ff
This commit is contained in:
Andrew Poelstra 2023-02-10 18:04:48 +00:00
parent c8e256718b 1e0e712bb0
commit 1514205e5f
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1 changed files with 12 additions and 0 deletions
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12
bitcoin/src/blockdata/script/builder.rs
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@ -7,8 +7,10 @@ use core::fmt;
use secp256k1::XOnlyPublicKey; use secp256k1::XOnlyPublicKey;
use crate::blockdata::locktime::absolute;
use crate::blockdata::opcodes::{self, all::*}; use crate::blockdata::opcodes::{self, all::*};
use crate::blockdata::script::{write_scriptint, opcode_to_verify, Script, ScriptBuf}; use crate::blockdata::script::{write_scriptint, opcode_to_verify, Script, ScriptBuf};
use crate::blockdata::transaction::Sequence;
use crate::key::PublicKey; use crate::key::PublicKey;
use crate::prelude::*; use crate::prelude::*;
@ -106,6 +108,16 @@ impl Builder {
} }
} }
/// Adds instructions to push an absolute lock time onto the stack.
pub fn push_lock_time(self, lock_time: absolute::LockTime) -> Builder {
self.push_int(lock_time.to_consensus_u32().into())
}
/// Adds instructions to push a sequence number onto the stack.
pub fn push_sequence(self, sequence: Sequence) -> Builder {
self.push_int(sequence.to_consensus_u32().into())
}
/// Converts the `Builder` into `ScriptBuf`. /// Converts the `Builder` into `ScriptBuf`.
pub fn into_script(self) -> ScriptBuf { pub fn into_script(self) -> ScriptBuf {
self.0 self.0