1use crate::*;
2use gpui::ModelHandle;
3use unindent::Unindent as _;
4
5#[gpui::test]
6async fn test_reparse(mut cx: gpui::TestAppContext) {
7 let buffer = cx.add_model(|cx| {
8 let text = "fn a() {}".into();
9 Buffer::from_history(0, History::new(text), None, Some(rust_lang()), cx)
10 });
11
12 // Wait for the initial text to parse
13 buffer
14 .condition(&cx, |buffer, _| !buffer.is_parsing())
15 .await;
16 assert_eq!(
17 get_tree_sexp(&buffer, &cx),
18 concat!(
19 "(source_file (function_item name: (identifier) ",
20 "parameters: (parameters) ",
21 "body: (block)))"
22 )
23 );
24
25 buffer.update(&mut cx, |buffer, _| {
26 buffer.set_sync_parse_timeout(Duration::ZERO)
27 });
28
29 // Perform some edits (add parameter and variable reference)
30 // Parsing doesn't begin until the transaction is complete
31 buffer.update(&mut cx, |buf, cx| {
32 buf.start_transaction(None).unwrap();
33
34 let offset = buf.text().find(")").unwrap();
35 buf.edit(vec![offset..offset], "b: C", cx);
36 assert!(!buf.is_parsing());
37
38 let offset = buf.text().find("}").unwrap();
39 buf.edit(vec![offset..offset], " d; ", cx);
40 assert!(!buf.is_parsing());
41
42 buf.end_transaction(None, cx).unwrap();
43 assert_eq!(buf.text(), "fn a(b: C) { d; }");
44 assert!(buf.is_parsing());
45 });
46 buffer
47 .condition(&cx, |buffer, _| !buffer.is_parsing())
48 .await;
49 assert_eq!(
50 get_tree_sexp(&buffer, &cx),
51 concat!(
52 "(source_file (function_item name: (identifier) ",
53 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
54 "body: (block (identifier))))"
55 )
56 );
57
58 // Perform a series of edits without waiting for the current parse to complete:
59 // * turn identifier into a field expression
60 // * turn field expression into a method call
61 // * add a turbofish to the method call
62 buffer.update(&mut cx, |buf, cx| {
63 let offset = buf.text().find(";").unwrap();
64 buf.edit(vec![offset..offset], ".e", cx);
65 assert_eq!(buf.text(), "fn a(b: C) { d.e; }");
66 assert!(buf.is_parsing());
67 });
68 buffer.update(&mut cx, |buf, cx| {
69 let offset = buf.text().find(";").unwrap();
70 buf.edit(vec![offset..offset], "(f)", cx);
71 assert_eq!(buf.text(), "fn a(b: C) { d.e(f); }");
72 assert!(buf.is_parsing());
73 });
74 buffer.update(&mut cx, |buf, cx| {
75 let offset = buf.text().find("(f)").unwrap();
76 buf.edit(vec![offset..offset], "::<G>", cx);
77 assert_eq!(buf.text(), "fn a(b: C) { d.e::<G>(f); }");
78 assert!(buf.is_parsing());
79 });
80 buffer
81 .condition(&cx, |buffer, _| !buffer.is_parsing())
82 .await;
83 assert_eq!(
84 get_tree_sexp(&buffer, &cx),
85 concat!(
86 "(source_file (function_item name: (identifier) ",
87 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
88 "body: (block (call_expression ",
89 "function: (generic_function ",
90 "function: (field_expression value: (identifier) field: (field_identifier)) ",
91 "type_arguments: (type_arguments (type_identifier))) ",
92 "arguments: (arguments (identifier))))))",
93 )
94 );
95
96 buffer.update(&mut cx, |buf, cx| {
97 buf.undo(cx);
98 assert_eq!(buf.text(), "fn a() {}");
99 assert!(buf.is_parsing());
100 });
101 buffer
102 .condition(&cx, |buffer, _| !buffer.is_parsing())
103 .await;
104 assert_eq!(
105 get_tree_sexp(&buffer, &cx),
106 concat!(
107 "(source_file (function_item name: (identifier) ",
108 "parameters: (parameters) ",
109 "body: (block)))"
110 )
111 );
112
113 buffer.update(&mut cx, |buf, cx| {
114 buf.redo(cx);
115 assert_eq!(buf.text(), "fn a(b: C) { d.e::<G>(f); }");
116 assert!(buf.is_parsing());
117 });
118 buffer
119 .condition(&cx, |buffer, _| !buffer.is_parsing())
120 .await;
121 assert_eq!(
122 get_tree_sexp(&buffer, &cx),
123 concat!(
124 "(source_file (function_item name: (identifier) ",
125 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
126 "body: (block (call_expression ",
127 "function: (generic_function ",
128 "function: (field_expression value: (identifier) field: (field_identifier)) ",
129 "type_arguments: (type_arguments (type_identifier))) ",
130 "arguments: (arguments (identifier))))))",
131 )
132 );
133
134 fn get_tree_sexp(buffer: &ModelHandle<Buffer>, cx: &gpui::TestAppContext) -> String {
135 buffer.read_with(cx, |buffer, _| {
136 buffer.syntax_tree().unwrap().root_node().to_sexp()
137 })
138 }
139}
140
141#[gpui::test]
142async fn test_enclosing_bracket_ranges(mut cx: gpui::TestAppContext) {
143 let buffer = cx.add_model(|cx| {
144 let text = "
145 mod x {
146 mod y {
147
148 }
149 }
150 "
151 .unindent()
152 .into();
153 Buffer::from_history(0, History::new(text), None, Some(rust_lang()), cx)
154 });
155 buffer
156 .condition(&cx, |buffer, _| !buffer.is_parsing())
157 .await;
158 buffer.read_with(&cx, |buf, _| {
159 assert_eq!(
160 buf.enclosing_bracket_point_ranges(Point::new(1, 6)..Point::new(1, 6)),
161 Some((
162 Point::new(0, 6)..Point::new(0, 7),
163 Point::new(4, 0)..Point::new(4, 1)
164 ))
165 );
166 assert_eq!(
167 buf.enclosing_bracket_point_ranges(Point::new(1, 10)..Point::new(1, 10)),
168 Some((
169 Point::new(1, 10)..Point::new(1, 11),
170 Point::new(3, 4)..Point::new(3, 5)
171 ))
172 );
173 assert_eq!(
174 buf.enclosing_bracket_point_ranges(Point::new(3, 5)..Point::new(3, 5)),
175 Some((
176 Point::new(1, 10)..Point::new(1, 11),
177 Point::new(3, 4)..Point::new(3, 5)
178 ))
179 );
180 });
181}
182
183#[gpui::test]
184async fn test_edit_with_autoindent(mut cx: gpui::TestAppContext) {
185 let buffer = cx.add_model(|cx| {
186 let text = "fn a() {}".into();
187 Buffer::from_history(0, History::new(text), None, Some(rust_lang()), cx)
188 });
189
190 buffer.update(&mut cx, |buffer, cx| {
191 buffer.edit_with_autoindent([8..8], "\n\n", cx);
192 assert_eq!(buffer.text(), "fn a() {\n \n}");
193
194 buffer.edit_with_autoindent([Point::new(1, 4)..Point::new(1, 4)], "b()\n", cx);
195 assert_eq!(buffer.text(), "fn a() {\n b()\n \n}");
196
197 buffer.edit_with_autoindent([Point::new(2, 4)..Point::new(2, 4)], ".c", cx);
198 assert_eq!(buffer.text(), "fn a() {\n b()\n .c\n}");
199 });
200}
201
202#[test]
203fn test_contiguous_ranges() {
204 assert_eq!(
205 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12], 100).collect::<Vec<_>>(),
206 &[1..4, 5..7, 9..13]
207 );
208
209 // Respects the `max_len` parameter
210 assert_eq!(
211 contiguous_ranges([2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31], 3).collect::<Vec<_>>(),
212 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
213 );
214}
215
216fn rust_lang() -> Arc<Language> {
217 Arc::new(
218 Language::new(
219 LanguageConfig {
220 name: "Rust".to_string(),
221 path_suffixes: vec!["rs".to_string()],
222 ..Default::default()
223 },
224 tree_sitter_rust::language(),
225 )
226 .with_indents_query(
227 r#"
228 (call_expression) @indent
229 (field_expression) @indent
230 (_ "{" "}" @end) @indent
231 "#,
232 )
233 .unwrap()
234 .with_brackets_query(r#" ("{" @open "}" @close) "#)
235 .unwrap(),
236 )
237}