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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
use std::sync::Arc;
use hir::{
self, Problem, source_binder
};
use ra_db::{
SourceDatabase, SourceRoot, SourceRootId,
salsa::{Database, SweepStrategy},
};
use ra_ide_api_light::{self, assists, LocalEdit, Severity};
use ra_syntax::{
algo::find_node_at_offset, ast::{self, NameOwner}, AstNode,
SourceFile,
TextRange,
};
use crate::{
AnalysisChange,
CrateId, db, Diagnostic, FileId, FilePosition, FileRange, FileSystemEdit,
Query, RootChange, SourceChange, SourceFileEdit,
symbol_index::{FileSymbol, SymbolsDatabase},
};
impl db::RootDatabase {
pub(crate) fn apply_change(&mut self, change: AnalysisChange) {
log::info!("apply_change {:?}", change);
// self.gc_syntax_trees();
if !change.new_roots.is_empty() {
let mut local_roots = Vec::clone(&self.local_roots());
for (root_id, is_local) in change.new_roots {
self.set_source_root(root_id, Default::default());
if is_local {
local_roots.push(root_id);
}
}
self.set_local_roots(Arc::new(local_roots));
}
for (root_id, root_change) in change.roots_changed {
self.apply_root_change(root_id, root_change);
}
for (file_id, text) in change.files_changed {
self.set_file_text(file_id, text)
}
if !change.libraries_added.is_empty() {
let mut libraries = Vec::clone(&self.library_roots());
for library in change.libraries_added {
libraries.push(library.root_id);
self.set_source_root(library.root_id, Default::default());
self.set_constant_library_symbols(library.root_id, Arc::new(library.symbol_index));
self.apply_root_change(library.root_id, library.root_change);
}
self.set_library_roots(Arc::new(libraries));
}
if let Some(crate_graph) = change.crate_graph {
self.set_crate_graph(Arc::new(crate_graph))
}
}
fn apply_root_change(&mut self, root_id: SourceRootId, root_change: RootChange) {
let mut source_root = SourceRoot::clone(&self.source_root(root_id));
for add_file in root_change.added {
self.set_file_text(add_file.file_id, add_file.text);
self.set_file_relative_path(add_file.file_id, add_file.path.clone());
self.set_file_source_root(add_file.file_id, root_id);
source_root.files.insert(add_file.path, add_file.file_id);
}
for remove_file in root_change.removed {
self.set_file_text(remove_file.file_id, Default::default());
source_root.files.remove(&remove_file.path);
}
self.set_source_root(root_id, Arc::new(source_root));
}
/// Ideally, we should call this function from time to time to collect heavy
/// syntax trees. However, if we actually do that, everything is recomputed
/// for some reason. Needs investigation.
pub(crate) fn collect_garbage(&mut self) {
self.query(ra_db::SourceFileQuery)
.sweep(SweepStrategy::default().discard_values());
self.query(hir::db::HirSourceFileQuery)
.sweep(SweepStrategy::default().discard_values());
self.query(hir::db::FileItemsQuery)
.sweep(SweepStrategy::default().discard_values());
self.query(hir::db::FileItemQuery)
.sweep(SweepStrategy::default().discard_values());
}
}
impl db::RootDatabase {
/// Returns `Vec` for the same reason as `parent_module`
pub(crate) fn crate_for(&self, file_id: FileId) -> Vec<CrateId> {
let module = match source_binder::module_from_file_id(self, file_id) {
Some(it) => it,
None => return Vec::new(),
};
let krate = match module.krate(self) {
Some(it) => it,
None => return Vec::new(),
};
vec![krate.crate_id()]
}
pub(crate) fn find_all_refs(&self, position: FilePosition) -> Vec<(FileId, TextRange)> {
let file = self.source_file(position.file_id);
// Find the binding associated with the offset
let (binding, descr) = match find_binding(self, &file, position) {
None => return Vec::new(),
Some(it) => it,
};
let mut ret = binding
.name()
.into_iter()
.map(|name| (position.file_id, name.syntax().range()))
.collect::<Vec<_>>();
ret.extend(
descr
.scopes(self)
.find_all_refs(binding)
.into_iter()
.map(|ref_desc| (position.file_id, ref_desc.range)),
);
return ret;
fn find_binding<'a>(
db: &db::RootDatabase,
source_file: &'a SourceFile,
position: FilePosition,
) -> Option<(&'a ast::BindPat, hir::Function)> {
let syntax = source_file.syntax();
if let Some(binding) = find_node_at_offset::<ast::BindPat>(syntax, position.offset) {
let descr = source_binder::function_from_child_node(
db,
position.file_id,
binding.syntax(),
)?;
return Some((binding, descr));
};
let name_ref = find_node_at_offset::<ast::NameRef>(syntax, position.offset)?;
let descr =
source_binder::function_from_child_node(db, position.file_id, name_ref.syntax())?;
let scope = descr.scopes(db);
let resolved = scope.resolve_local_name(name_ref)?;
let resolved = resolved.ptr().to_node(source_file);
let binding = find_node_at_offset::<ast::BindPat>(syntax, resolved.range().end())?;
Some((binding, descr))
}
}
pub(crate) fn diagnostics(&self, file_id: FileId) -> Vec<Diagnostic> {
let syntax = self.source_file(file_id);
let mut res = ra_ide_api_light::diagnostics(&syntax)
.into_iter()
.map(|d| Diagnostic {
range: d.range,
message: d.msg,
severity: d.severity,
fix: d.fix.map(|fix| SourceChange::from_local_edit(file_id, fix)),
})
.collect::<Vec<_>>();
if let Some(m) = source_binder::module_from_file_id(self, file_id) {
for (name_node, problem) in m.problems(self) {
let source_root = self.file_source_root(file_id);
let diag = match problem {
Problem::UnresolvedModule { candidate } => {
let create_file = FileSystemEdit::CreateFile {
source_root,
path: candidate.clone(),
};
let fix = SourceChange {
label: "create module".to_string(),
source_file_edits: Vec::new(),
file_system_edits: vec![create_file],
cursor_position: None,
};
Diagnostic {
range: name_node.range(),
message: "unresolved module".to_string(),
severity: Severity::Error,
fix: Some(fix),
}
}
Problem::NotDirOwner { move_to, candidate } => {
let move_file = FileSystemEdit::MoveFile {
src: file_id,
dst_source_root: source_root,
dst_path: move_to.clone(),
};
let create_file = FileSystemEdit::CreateFile {
source_root,
path: move_to.join(candidate),
};
let fix = SourceChange {
label: "move file and create module".to_string(),
source_file_edits: Vec::new(),
file_system_edits: vec![move_file, create_file],
cursor_position: None,
};
Diagnostic {
range: name_node.range(),
message: "can't declare module at this location".to_string(),
severity: Severity::Error,
fix: Some(fix),
}
}
};
res.push(diag)
}
};
res
}
pub(crate) fn assists(&self, frange: FileRange) -> Vec<SourceChange> {
let file = self.source_file(frange.file_id);
assists::assists(&file, frange.range)
.into_iter()
.map(|local_edit| SourceChange::from_local_edit(frange.file_id, local_edit))
.collect()
}
pub(crate) fn index_resolve(&self, name_ref: &ast::NameRef) -> Vec<FileSymbol> {
let name = name_ref.text();
let mut query = Query::new(name.to_string());
query.exact();
query.limit(4);
crate::symbol_index::world_symbols(self, query)
}
}
impl SourceChange {
pub(crate) fn from_local_edit(file_id: FileId, edit: LocalEdit) -> SourceChange {
let file_edit = SourceFileEdit {
file_id,
edit: edit.edit,
};
SourceChange {
label: edit.label,
source_file_edits: vec![file_edit],
file_system_edits: vec![],
cursor_position: edit
.cursor_position
.map(|offset| FilePosition { offset, file_id }),
}
}
}
|
