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
use crate::{Configuration, Value};
use std::{borrow::Borrow, ops::Deref};
/// Defines the behavior for a section of application configuration values.
pub trait ConfigurationSection:
Configuration
+ AsRef<dyn Configuration>
+ Borrow<dyn Configuration>
+ Deref<Target = dyn Configuration>
{
/// Gets the key this section occupies in its parent.
fn key(&self) -> &str;
/// Gets the full path to this section within the [`Configuration`](crate::Configuration).
fn path(&self) -> &str;
/// Gets the section value.
fn value(&self) -> Value;
/// Converts the [`ConfigurationSection`] into a [`Configuration`](crate::Configuration).
fn as_config(&self) -> Box<dyn Configuration>;
}
pub mod ext {
use super::*;
/// Defines extension methods for [`ConfigurationSection`].
pub trait ConfigurationSectionExtensions {
/// Gets a value indicating whether the configuration section exists.
///
/// # Remarks
///
/// A configuration section is considered nonexistent if it has no
/// value and no children
fn exists(&self) -> bool;
}
impl ConfigurationSectionExtensions for dyn ConfigurationSection + '_ {
fn exists(&self) -> bool {
!self.value().is_empty() || !self.children().is_empty()
}
}
impl<T: ConfigurationSection> ConfigurationSectionExtensions for T {
fn exists(&self) -> bool {
!self.value().is_empty() || !self.children().is_empty()
}
}
}