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rust-bitcoin-unsafe-fast
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units: delete MtpAndHeight type 

This type provides little value beyond just pairing a BlockHeight and a
BlockMtp.
This commit is contained in:
Andrew Poelstra 2025-05-06 19:06:24 +00:00
parent d82b8c0bcb
commit 47c77afaac
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2 changed files with 0 additions and 65 deletions
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1
units/src/lib.rs
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@ -48,7 +48,6 @@ pub mod amount;
pub mod block;
pub mod fee_rate;
pub mod locktime;
pub mod mtp_height;
pub mod parse;
pub mod time;
pub mod weight;

64
units/src/mtp_height.rs
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@ -1,64 +0,0 @@
// SPDX-License-Identifier: CC0-1.0
//! Median Time Past (MTP) and height - used for working lock times.
use crate::{BlockHeight, BlockMtp, BlockTime};
/// A structure containing both Median Time Past (MTP) and current
/// absolute block height, used for validating relative locktimes.
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct MtpAndHeight {
/// The Median Time Past (median of the last 11 blocks' timestamps)
mtp: BlockMtp,
/// The current block height,
height: BlockHeight,
}
impl MtpAndHeight {
/// Constructs an [`MtpAndHeight`] by computing the median‐time‐past from the last 11 block timestamps
///
/// # Parameters
///
/// * `height` - The absolute height of the chain tip
/// * `timestamps` - An array of timestamps from the most recent 11 blocks, where
/// - `timestamps[0]` is the timestamp at height `height - 10`
/// - `timestamps[1]` is the timestamp at height `height - 9`
/// - …
/// - `timestamps[10]` is the timestamp at height `height`
pub fn new(height: BlockHeight, timestamps: [BlockTime; 11]) -> Self {
MtpAndHeight { mtp: BlockMtp::new(timestamps), height }
}
/// Returns the median-time-past component.
pub fn to_mtp(self) -> BlockMtp { self.mtp }
/// Returns the block-height component.
pub fn to_height(self) -> BlockHeight { self.height }
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn valid_chain_computes_mtp() {
let height = BlockHeight::from_u32(100);
let timestamps = [
BlockTime::from_u32(10),
BlockTime::from_u32(3),
BlockTime::from_u32(5),
BlockTime::from_u32(8),
BlockTime::from_u32(1),
BlockTime::from_u32(4),
BlockTime::from_u32(6),
BlockTime::from_u32(9),
BlockTime::from_u32(2),
BlockTime::from_u32(7),
BlockTime::from_u32(0),
];
let result = MtpAndHeight::new(height, timestamps);
assert_eq!(result.height, height);
assert_eq!(result.mtp.to_u32(), 5);
}
}