diff options
Diffstat (limited to 'crates/ra_text_edit/src/text_edit.rs')
-rw-r--r-- | crates/ra_text_edit/src/text_edit.rs | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/crates/ra_text_edit/src/text_edit.rs b/crates/ra_text_edit/src/text_edit.rs deleted file mode 100644 index eabab4b4d..000000000 --- a/crates/ra_text_edit/src/text_edit.rs +++ /dev/null | |||
@@ -1,102 +0,0 @@ | |||
1 | //! FIXME: write short doc here | ||
2 | |||
3 | use crate::AtomTextEdit; | ||
4 | |||
5 | use text_size::{TextRange, TextSize}; | ||
6 | |||
7 | #[derive(Debug, Clone)] | ||
8 | pub struct TextEdit { | ||
9 | atoms: Vec<AtomTextEdit>, | ||
10 | } | ||
11 | |||
12 | #[derive(Debug, Default)] | ||
13 | pub struct TextEditBuilder { | ||
14 | atoms: Vec<AtomTextEdit>, | ||
15 | } | ||
16 | |||
17 | impl TextEditBuilder { | ||
18 | pub fn replace(&mut self, range: TextRange, replace_with: String) { | ||
19 | self.atoms.push(AtomTextEdit::replace(range, replace_with)) | ||
20 | } | ||
21 | pub fn delete(&mut self, range: TextRange) { | ||
22 | self.atoms.push(AtomTextEdit::delete(range)) | ||
23 | } | ||
24 | pub fn insert(&mut self, offset: TextSize, text: String) { | ||
25 | self.atoms.push(AtomTextEdit::insert(offset, text)) | ||
26 | } | ||
27 | pub fn finish(self) -> TextEdit { | ||
28 | TextEdit::from_atoms(self.atoms) | ||
29 | } | ||
30 | pub fn invalidates_offset(&self, offset: TextSize) -> bool { | ||
31 | self.atoms.iter().any(|atom| atom.delete.contains_inclusive(offset)) | ||
32 | } | ||
33 | } | ||
34 | |||
35 | impl TextEdit { | ||
36 | pub fn insert(offset: TextSize, text: String) -> TextEdit { | ||
37 | let mut builder = TextEditBuilder::default(); | ||
38 | builder.insert(offset, text); | ||
39 | builder.finish() | ||
40 | } | ||
41 | |||
42 | pub fn delete(range: TextRange) -> TextEdit { | ||
43 | let mut builder = TextEditBuilder::default(); | ||
44 | builder.delete(range); | ||
45 | builder.finish() | ||
46 | } | ||
47 | |||
48 | pub fn replace(range: TextRange, replace_with: String) -> TextEdit { | ||
49 | let mut builder = TextEditBuilder::default(); | ||
50 | builder.replace(range, replace_with); | ||
51 | builder.finish() | ||
52 | } | ||
53 | |||
54 | pub(crate) fn from_atoms(mut atoms: Vec<AtomTextEdit>) -> TextEdit { | ||
55 | atoms.sort_by_key(|a| (a.delete.start(), a.delete.end())); | ||
56 | for (a1, a2) in atoms.iter().zip(atoms.iter().skip(1)) { | ||
57 | assert!(a1.delete.end() <= a2.delete.start()) | ||
58 | } | ||
59 | TextEdit { atoms } | ||
60 | } | ||
61 | |||
62 | pub fn as_atoms(&self) -> &[AtomTextEdit] { | ||
63 | &self.atoms | ||
64 | } | ||
65 | |||
66 | pub fn apply(&self, text: &str) -> String { | ||
67 | let mut total_len = TextSize::of(text); | ||
68 | for atom in self.atoms.iter() { | ||
69 | total_len += TextSize::of(&atom.insert); | ||
70 | total_len -= atom.delete.end() - atom.delete.start(); | ||
71 | } | ||
72 | let mut buf = String::with_capacity(total_len.into()); | ||
73 | let mut prev = 0; | ||
74 | for atom in self.atoms.iter() { | ||
75 | let start: usize = atom.delete.start().into(); | ||
76 | let end: usize = atom.delete.end().into(); | ||
77 | if start > prev { | ||
78 | buf.push_str(&text[prev..start]); | ||
79 | } | ||
80 | buf.push_str(&atom.insert); | ||
81 | prev = end; | ||
82 | } | ||
83 | buf.push_str(&text[prev..text.len()]); | ||
84 | assert_eq!(TextSize::of(&buf), total_len); | ||
85 | buf | ||
86 | } | ||
87 | |||
88 | pub fn apply_to_offset(&self, offset: TextSize) -> Option<TextSize> { | ||
89 | let mut res = offset; | ||
90 | for atom in self.atoms.iter() { | ||
91 | if atom.delete.start() >= offset { | ||
92 | break; | ||
93 | } | ||
94 | if offset < atom.delete.end() { | ||
95 | return None; | ||
96 | } | ||
97 | res += TextSize::of(&atom.insert); | ||
98 | res -= atom.delete.len(); | ||
99 | } | ||
100 | Some(res) | ||
101 | } | ||
102 | } | ||