1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
use crate::settings::TableOption;
#[cfg(feature = "std")]
use crate::grid::config::Entity;
#[cfg(feature = "std")]
use crate::settings::CellOption;
/// Settings is a combinator of [`TableOption`]s.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct Settings<A = EmptySettings, B = EmptySettings>(A, B);
impl Default for Settings<EmptySettings, EmptySettings> {
fn default() -> Self {
Self(EmptySettings, EmptySettings)
}
}
impl Settings<(), ()> {
/// Creates an empty list.
pub const fn empty() -> Settings<EmptySettings, EmptySettings> {
Settings(EmptySettings, EmptySettings)
}
}
impl<A, B> Settings<A, B> {
/// Creates a new combinator.
pub const fn new(settings1: A, settings2: B) -> Settings<A, B> {
Settings(settings1, settings2)
}
/// Add an option to a combinator.
pub const fn with<C>(self, settings: C) -> Settings<Self, C> {
Settings(self, settings)
}
}
#[cfg(feature = "std")]
impl<R, C, A, B> CellOption<R, C> for Settings<A, B>
where
A: CellOption<R, C>,
B: CellOption<R, C>,
{
fn change(self, records: &mut R, cfg: &mut C, entity: Entity) {
self.0.change(records, cfg, entity);
self.1.change(records, cfg, entity);
}
}
impl<R, D, C, A, B> TableOption<R, D, C> for Settings<A, B>
where
A: TableOption<R, D, C>,
B: TableOption<R, D, C>,
{
fn change(self, records: &mut R, cfg: &mut C, dims: &mut D) {
self.0.change(records, cfg, dims);
self.1.change(records, cfg, dims);
}
}
/// A marker structure to be able to create an empty [`Settings`].
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct EmptySettings;
#[cfg(feature = "std")]
impl<R, C> CellOption<R, C> for EmptySettings {
fn change(self, _: &mut R, _: &mut C, _: Entity) {}
}
impl<R, D, C> TableOption<R, D, C> for EmptySettings {
fn change(self, _: &mut R, _: &mut C, _: &mut D) {}
}
|
