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chore: Move time logic out of primitives (#173)

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This commit is contained in:
Santiago Carmuega 2022-08-13 14:37:02 -03:00 • committed by GitHub
parent 4128d2d70a
commit 9caa176785
4 changed files with 16 additions and 21 deletions
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1
pallas-primitives/src/byron/mod.rs
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@ -2,6 +2,5 @@
mod fees;
mod model;
mod time;
pub use model::*;

45
pallas-primitives/src/byron/time.rs
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@ -1,45 +0,0 @@
use super::{EbbHead, SlotId};
// TODO: is it safe to hardcode these values?
const WELLKNOWN_SLOT_LENGTH: u64 = 20; // 20 secs
const WELLKNOWN_EPOCH_LENGTH: u64 = 5 * 24 * 60 * 60; // 5 days
fn epoch_slot_to_absolute(epoch: u64, sub_epoch_slot: u64) -> u64 {
((epoch * WELLKNOWN_EPOCH_LENGTH) / WELLKNOWN_SLOT_LENGTH) + sub_epoch_slot
}
impl SlotId {
pub fn to_abs_slot(&self) -> u64 {
epoch_slot_to_absolute(self.epoch, self.slot)
}
}
impl EbbHead {
pub fn to_abs_slot(&self) -> u64 {
epoch_slot_to_absolute(self.consensus_data.epoch_id, 0)
}
}
#[cfg(test)]
mod tests {
use pallas_codec::minicbor;
use crate::byron::Block;
type BlockWrapper = (u16, Block);
#[test]
fn knwon_slot_matches() {
// TODO: expand this test to include more test blocks
let block_idx = 1;
let block_str = include_str!("../../../test_data/byron1.block");
let block_bytes = hex::decode(block_str).expect(&format!("bad block file {}", block_idx));
let (_, block): BlockWrapper = minicbor::decode(&block_bytes[..])
.expect(&format!("error decoding cbor for file {}", block_idx));
let computed_slot = block.header.consensus_data.0.to_abs_slot();
assert_eq!(computed_slot, 4492794);
}
}