roussillon_type_system/value/
reference.rs

1use std::cell::RefCell;
2use std::rc::Rc;
3
4use crate::types::concept::Type;
5use crate::types::primitive::Primitive;
6use crate::value::concept::{DataValue, ValueCell};
7
8#[derive(Clone, Debug)]
9pub struct Reference {
10    to_type: Type,
11    address: usize,
12}
13
14impl Reference {
15    pub fn new(to_type: Type, address: usize) -> Self {
16        Self { to_type, address }
17    }
18    pub fn get_address(&self) -> usize {
19        self.address
20    }
21    pub fn to_cell(self) -> ValueCell { Rc::new(RefCell::new(self)) }
22    pub fn referenced(&self) -> &Type { &self.to_type }
23    pub fn from(t: Type, raw: &[u8]) -> Self {
24        Self::new(t, usize::from_be_bytes(raw.try_into().unwrap_or_default()))
25    }
26}
27
28impl PartialEq for Reference {
29    fn eq(&self, other: &Self) -> bool {
30        self.to_type.typename() == other.to_type.typename()
31            && self.address == other.address
32    }
33}
34
35impl Eq for Reference {}
36
37impl DataValue for Reference {
38    fn data_type(&self) -> Type {
39        Primitive::Reference(self.to_type.clone(), 8).to_rc()
40    }
41
42    fn raw(&self) -> Vec<u8> {
43        self.address.to_be_bytes().to_vec()
44    }
45
46    fn set(&mut self, raw: &[u8]) {
47        self.address = usize::from_be_bytes(raw.try_into().unwrap())
48    }
49}
roussillon_type_system/value/reference.rs

roussillon_type_system/value/
reference.rs
