static_graph/
tags.rs

1use std::{
2    any::{Any, TypeId},
3    collections::HashMap,
4    ops::{Deref, DerefMut},
5    str::FromStr,
6};
7
8use faststr::FastStr;
9
10#[derive(Default, Debug)]
11pub struct TypeMap(HashMap<TypeId, Box<dyn Any + Sync + Send>>);
12
13impl TypeMap {
14    pub fn insert<T: 'static + Sync + Send>(&mut self, v: T) {
15        self.0.insert(TypeId::of::<T>(), Box::new(v));
16    }
17
18    pub fn get<T: 'static>(&self) -> Option<&T> {
19        self.0
20            .get(&TypeId::of::<T>())
21            .map(|v| v.downcast_ref().unwrap())
22    }
23
24    pub fn is_empty(&self) -> bool {
25        self.0.is_empty()
26    }
27
28    pub fn len(&self) -> usize {
29        self.0.len()
30    }
31
32    pub fn contains<T: 'static>(&self) -> bool {
33        self.0.contains_key(&TypeId::of::<T>())
34    }
35
36    pub fn remove<T: 'static>(&mut self) {
37        self.0.remove(&TypeId::of::<T>());
38    }
39}
40
41#[derive(Default, Debug)]
42pub struct Tags(TypeMap);
43
44impl Deref for Tags {
45    type Target = TypeMap;
46
47    fn deref(&self) -> &Self::Target {
48        &self.0
49    }
50}
51
52impl DerefMut for Tags {
53    fn deref_mut(&mut self) -> &mut Self::Target {
54        &mut self.0
55    }
56}
57
58#[derive(Clone)]
59pub struct Construct(pub FastStr);
60
61pub trait Annotation: FromStr {
62    const KEY: &'static str;
63}
64
65impl FromStr for Construct {
66    type Err = std::convert::Infallible;
67
68    fn from_str(s: &str) -> Result<Self, Self::Err> {
69        Ok(Self(FastStr::new(s)))
70    }
71}
72
73impl Annotation for Construct {
74    const KEY: &'static str = "default";
75}
76
77#[derive(Clone)]
78pub struct Editable(pub bool);
79
80impl FromStr for Editable {
81    type Err = std::convert::Infallible;
82
83    fn from_str(s: &str) -> Result<Self, Self::Err> {
84        Ok(Self(s == "true"))
85    }
86}
87
88impl Annotation for Editable {
89    const KEY: &'static str = "editable";
90}
static_graph/tags.rs

static_graph/
tags.rs
