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
72
73
74
75
76
77
78
79
80
81
82
83

use super::action::Action;

/// Describes a edit context for modifying a line.
#[derive(Debug)]
pub struct EditContext {
	action: Option<Action>,
	content: Option<String>,
}

impl EditContext {
	/// Create a new empty instance.
	#[must_use]
	#[inline]
	pub const fn new() -> Self {
		Self {
			action: None,
			content: None,
		}
	}

	/// Set the action.
	#[must_use]
	#[inline]
	pub const fn action(mut self, action: Action) -> Self {
		self.action = Some(action);
		self
	}

	/// Set the content.
	#[must_use]
	#[inline]
	pub fn content(mut self, content: &str) -> Self {
		self.content = Some(content.to_owned());
		self
	}

	/// Get the action.
	#[must_use]
	#[inline]
	pub const fn get_action(&self) -> &Option<Action> {
		&self.action
	}

	/// Get the content.
	#[must_use]
	#[inline]
	pub const fn get_content(&self) -> &Option<String> {
		&self.content
	}
}

#[cfg(test)]
mod tests {
	use super::*;

	#[test]
	fn empty() {
		let edit_context = EditContext::new();
		assert_eq!(edit_context.get_action(), &None);
		assert_eq!(edit_context.get_content(), &None);
	}

	#[test]
	fn with_action() {
		let edit_context = EditContext::new().action(Action::Break);
		assert_eq!(edit_context.get_action(), &Some(Action::Break));
		assert_eq!(edit_context.get_content(), &None);
	}

	#[test]
	fn with_content() {
		let edit_context = EditContext::new().content("test content");
		assert_eq!(edit_context.get_action(), &None);
		assert_eq!(edit_context.get_content(), &Some(String::from("test content")));
	}

	#[test]
	fn with_content_and_action() {
		let edit_context = EditContext::new().action(Action::Edit).content("test content");
		assert_eq!(edit_context.get_action(), &Some(Action::Edit));
		assert_eq!(edit_context.get_content(), &Some(String::from("test content")));
	}
}