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70 lines
1.5 KiB
70 lines
1.5 KiB
//! Server state
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use super::*;
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use std::{
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collections::HashMap,
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};
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use generational_arena::{
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Arena, Index,
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};
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/// Possible value types of the data map
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#[derive(Debug, Serialize, Deserialize)]
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pub enum Data
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{
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Byte(u8),
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Char(char),
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Bool(bool),
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SI(i64),
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UI(u64),
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FI(f64),
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Text(String),
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Binary(Vec<u8>),
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/// A reference index to an item within the same `Datamap` as this one.
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RelativeRef(Index),
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/// A reference to an item N deep within nested `Map` elements.
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///
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/// The first `Index` specifies the `Map` data item at the root `Datamap` that contains the next, et cetera. The pointed to value is the last index.
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AbsoluteRef(Vec<Index>),
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List(Vec<Atom>),
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Map(Datamap),
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Null,
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}
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/// Information about a map entry.
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#[derive(Debug, Serialize, Deserialize)]
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pub struct Info
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{
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created: u64,
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modified: u64,
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//TODO: Info about who owns it, perms, etc.
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}
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/// The root data containing map
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#[derive(Debug, Serialize, Deserialize)]
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pub struct Datamap
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{
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data: Arena<Atom>,
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ident: HashMap<Identifier, Index>,
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}
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/// A value in a datamap, contains the information about the value and the value itself.
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#[derive(Debug, Serialize, Deserialize)]
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pub struct Atom(Data, Info);
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/// An identifier for an item in a `Datamap`, or an item nested within many `Datamap`s.
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#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Hash, Serialize, Deserialize)]
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pub struct Identifier(String);
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/// Contains the state of the whole program
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#[derive(Debug)]
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pub struct ServerState
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{
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root: Datamap,
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}
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