rooting_forms/
impl_unit_structs.rs

1use std::{
2    cell::{
3        Cell,
4        RefCell,
5    },
6    marker::PhantomData,
7    rc::Rc,
8    sync::{
9        Arc,
10        Mutex,
11    },
12};
13use crate::{
14    FormWith,
15    FormElements,
16    FormState,
17};
18
19struct RcFormState<C, T: FormWith<C>>(Box<dyn FormState<T>>, PhantomData<C>);
20
21impl<C, T: FormWith<C>> FormState<Rc<T>> for RcFormState<C, T> {
22    fn parse(&self) -> Result<Rc<T>, ()> {
23        return Ok(Rc::new(self.0.parse()?));
24    }
25}
26
27impl<C: 'static, T: FormWith<C> + 'static> FormWith<C> for Rc<T> {
28    fn new_form_with_(
29        context: &C,
30        field: &str,
31        from: Option<&Self>,
32        depth: usize,
33    ) -> (FormElements, Box<dyn FormState<Self>>) {
34        let (elements, state) = T::new_form_with_(context, field, from.map(|x| x.as_ref()), depth);
35        return (elements, Box::new(RcFormState(state, Default::default())));
36    }
37}
38
39struct ArcFormState<C, T: FormWith<C>>(Box<dyn FormState<T>>, PhantomData<C>);
40
41impl<C, T: FormWith<C>> FormState<Arc<T>> for ArcFormState<C, T> {
42    fn parse(&self) -> Result<Arc<T>, ()> {
43        return Ok(Arc::new(self.0.parse()?));
44    }
45}
46
47impl<C: 'static, T: FormWith<C> + 'static> FormWith<C> for Arc<T> {
48    fn new_form_with_(
49        context: &C,
50        field: &str,
51        from: Option<&Self>,
52        depth: usize,
53    ) -> (FormElements, Box<dyn FormState<Self>>) {
54        let (elements, state) = T::new_form_with_(context, field, from.map(|x| x.as_ref()), depth);
55        return (elements, Box::new(ArcFormState(state, Default::default())));
56    }
57}
58
59struct CellFormState<C, T: FormWith<C>>(Box<dyn FormState<T>>, PhantomData<C>);
60
61impl<C, T: FormWith<C> + Copy + Clone> FormState<Cell<T>> for CellFormState<C, T> {
62    fn parse(&self) -> Result<Cell<T>, ()> {
63        return Ok(Cell::new(self.0.parse()?));
64    }
65}
66
67impl<C: 'static, T: FormWith<C> + Copy + Clone + 'static> FormWith<C> for Cell<T> {
68    fn new_form_with_(
69        context: &C,
70        field: &str,
71        from: Option<&Self>,
72        depth: usize,
73    ) -> (FormElements, Box<dyn FormState<Self>>) {
74        let (elements, state) = T::new_form_with_(context, field, from.map(|x| x.get()).as_ref(), depth);
75        return (elements, Box::new(CellFormState(state, Default::default())));
76    }
77}
78
79struct RefCellFormState<C, T: FormWith<C>>(Box<dyn FormState<T>>, PhantomData<C>);
80
81impl<C, T: FormWith<C>> FormState<RefCell<T>> for RefCellFormState<C, T> {
82    fn parse(&self) -> Result<RefCell<T>, ()> {
83        return Ok(RefCell::new(self.0.parse()?));
84    }
85}
86
87impl<C: 'static, T: FormWith<C> + 'static> FormWith<C> for RefCell<T> {
88    fn new_form_with_(
89        context: &C,
90        field: &str,
91        from: Option<&Self>,
92        depth: usize,
93    ) -> (FormElements, Box<dyn FormState<Self>>) {
94        let from = from.map(|x| x.borrow());
95        let (elements, state) = T::new_form_with_(context, field, match &from {
96            Some(x) => Some(&*x),
97            None => None,
98        }, depth);
99        return (elements, Box::new(RefCellFormState(state, Default::default())));
100    }
101}
102
103struct MutexFormState<C, T: FormWith<C>>(Box<dyn FormState<T>>, PhantomData<C>);
104
105impl<C, T: FormWith<C>> FormState<Mutex<T>> for MutexFormState<C, T> {
106    fn parse(&self) -> Result<Mutex<T>, ()> {
107        return Ok(Mutex::new(self.0.parse()?));
108    }
109}
110
111impl<C: 'static, T: FormWith<C> + 'static> FormWith<C> for Mutex<T> {
112    fn new_form_with_(
113        context: &C,
114        field: &str,
115        from: Option<&Self>,
116        depth: usize,
117    ) -> (FormElements, Box<dyn FormState<Self>>) {
118        let from = from.map(|x| x.lock().unwrap());
119        let (elements, state) = T::new_form_with_(context, field, match &from {
120            Some(x) => Some(&*x),
121            None => None,
122        }, depth);
123        return (elements, Box::new(MutexFormState(state, Default::default())));
124    }
125}
rooting_forms/impl_unit_structs.rs

rooting_forms/
impl_unit_structs.rs
