109 lines
2 KiB
Rust
109 lines
2 KiB
Rust
use crate::sql::array::Array;
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use crate::sql::id::Id;
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use derive::Key;
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use serde::{Deserialize, Serialize};
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#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Serialize, Deserialize, Key)]
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struct Prefix {
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__: u8,
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_a: u8,
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pub ns: String,
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_b: u8,
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pub db: String,
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_c: u8,
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pub tb: String,
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_d: u8,
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pub ix: String,
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}
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impl Prefix {
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fn new(ns: &str, db: &str, tb: &str, ix: &str) -> Prefix {
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Prefix {
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__: 0x2f, // /
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_a: 0x2a, // *
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ns: ns.to_string(),
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_b: 0x2a, // *
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db: db.to_string(),
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_c: 0x2a, // *
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tb: tb.to_string(),
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_d: 0xa4, // ¤
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ix: ix.to_string(),
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}
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}
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}
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#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Serialize, Deserialize, Key)]
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pub struct Index {
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__: u8,
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_a: u8,
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pub ns: String,
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_b: u8,
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pub db: String,
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_c: u8,
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pub tb: String,
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_d: u8,
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pub ix: String,
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pub fd: Array,
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pub id: Option<Id>,
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}
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pub fn new(ns: &str, db: &str, tb: &str, ix: &str, fd: &Array, id: Option<&Id>) -> Index {
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Index::new(
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ns.to_string(),
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db.to_string(),
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tb.to_string(),
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ix.to_string(),
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fd.to_owned(),
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id.cloned(),
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)
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}
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pub fn prefix(ns: &str, db: &str, tb: &str, ix: &str) -> Vec<u8> {
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let mut k = Prefix::new(ns, db, tb, ix).encode().unwrap();
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k.extend_from_slice(&[0x00]);
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k
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}
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pub fn suffix(ns: &str, db: &str, tb: &str, ix: &str) -> Vec<u8> {
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let mut k = Prefix::new(ns, db, tb, ix).encode().unwrap();
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k.extend_from_slice(&[0xff]);
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k
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}
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impl Index {
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pub fn new(ns: String, db: String, tb: String, ix: String, fd: Array, id: Option<Id>) -> Index {
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Index {
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__: 0x2f, // /
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_a: 0x2a, // *
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ns,
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_b: 0x2a, // *
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db,
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_c: 0x2a, // *
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tb,
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_d: 0xa4, // ¤
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ix,
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fd,
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id,
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}
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}
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}
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#[cfg(test)]
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mod tests {
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#[test]
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fn key() {
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use super::*;
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#[rustfmt::skip]
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let val = Index::new(
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"test".to_string(),
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"test".to_string(),
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"test".to_string(),
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"test".to_string(),
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vec!["test"].into(),
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Some("test".into()),
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);
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let enc = Index::encode(&val).unwrap();
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let dec = Index::decode(&enc).unwrap();
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assert_eq!(val, dec);
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}
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}
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