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
|
use std::sync::Arc;
use base_db::SourceDatabaseExt;
use crate::{AdtId, ModuleDefId};
use super::*;
fn check_def_map_is_not_recomputed(ra_fixture_initial: &str, ra_fixture_change: &str) {
let (mut db, pos) = TestDB::with_position(ra_fixture_initial);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
db.crate_def_map(krate);
});
assert!(format!("{events:?}").contains("crate_def_map"), "{events:#?}")
}
db.set_file_text(pos.file_id, Arc::new(ra_fixture_change.to_string()));
{
let events = db.log_executed(|| {
db.crate_def_map(krate);
});
assert!(!format!("{events:?}").contains("crate_def_map"), "{events:#?}")
}
}
#[test]
fn typing_inside_a_function_should_not_invalidate_def_map() {
check_def_map_is_not_recomputed(
r"
//- /lib.rs
mod foo;$0
use crate::foo::bar::Baz;
enum E { A, B }
use E::*;
fn foo() -> i32 {
1 + 1
}
#[cfg(never)]
fn no() {}
//- /foo/mod.rs
pub mod bar;
//- /foo/bar.rs
pub struct Baz;
",
r"
mod foo;
use crate::foo::bar::Baz;
enum E { A, B }
use E::*;
fn foo() -> i32 { 92 }
#[cfg(never)]
fn no() {}
",
);
}
#[test]
fn typing_inside_a_macro_should_not_invalidate_def_map() {
let (mut db, pos) = TestDB::with_position(
r"
//- /lib.rs
macro_rules! m {
($ident:ident) => {
fn f() {
$ident + $ident;
};
}
}
mod foo;
//- /foo/mod.rs
pub mod bar;
//- /foo/bar.rs
$0
m!(X);
",
);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 1);
});
assert!(format!("{events:?}").contains("crate_def_map"), "{events:#?}")
}
db.set_file_text(pos.file_id, Arc::new("m!(Y);".to_string()));
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 1);
});
assert!(!format!("{events:?}").contains("crate_def_map"), "{events:#?}")
}
}
#[test]
fn typing_inside_a_function_should_not_invalidate_expansions() {
let (mut db, pos) = TestDB::with_position(
r#"
//- /lib.rs
macro_rules! m {
($ident:ident) => {
fn $ident() { };
}
}
mod foo;
//- /foo/mod.rs
pub mod bar;
//- /foo/bar.rs
m!(X);
fn quux() { 1$0 }
m!(Y);
m!(Z);
"#,
);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 4);
});
let n_recalculated_item_trees = events.iter().filter(|it| it.contains("item_tree")).count();
assert_eq!(n_recalculated_item_trees, 6);
let n_reparsed_macros =
events.iter().filter(|it| it.contains("parse_macro_expansion")).count();
assert_eq!(n_reparsed_macros, 3);
}
let new_text = r#"
m!(X);
fn quux() { 92 }
m!(Y);
m!(Z);
"#;
db.set_file_text(pos.file_id, Arc::new(new_text.to_string()));
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 4);
});
let n_recalculated_item_trees = events.iter().filter(|it| it.contains("item_tree")).count();
assert_eq!(n_recalculated_item_trees, 1);
let n_reparsed_macros =
events.iter().filter(|it| it.contains("parse_macro_expansion")).count();
assert_eq!(n_reparsed_macros, 0);
}
}
#[test]
fn item_tree_prevents_reparsing() {
// The `ItemTree` is used by both name resolution and the various queries in `adt.rs` and
// `data.rs`. After computing the `ItemTree` and deleting the parse tree, we should be able to
// run those other queries without triggering a reparse.
let (db, pos) = TestDB::with_position(
r#"
pub struct S;
pub union U {}
pub enum E {
Variant,
}
pub fn f(_: S) { $0 }
pub trait Tr {}
impl Tr for () {}
pub const C: u8 = 0;
pub static ST: u8 = 0;
pub type Ty = ();
"#,
);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
db.file_item_tree(pos.file_id.into());
});
let n_calculated_item_trees = events.iter().filter(|it| it.contains("item_tree")).count();
assert_eq!(n_calculated_item_trees, 1);
let n_parsed_files = events.iter().filter(|it| it.contains("parse(")).count();
assert_eq!(n_parsed_files, 1);
}
// Delete the parse tree.
base_db::ParseQuery.in_db(&db).purge();
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 8);
assert_eq!(module_data.scope.impls().count(), 1);
for imp in module_data.scope.impls() {
db.impl_data(imp);
}
for (_, res) in module_data.scope.resolutions() {
match res.values.or(res.types).unwrap().0 {
ModuleDefId::FunctionId(f) => drop(db.function_data(f)),
ModuleDefId::AdtId(adt) => match adt {
AdtId::StructId(it) => drop(db.struct_data(it)),
AdtId::UnionId(it) => drop(db.union_data(it)),
AdtId::EnumId(it) => drop(db.enum_data(it)),
},
ModuleDefId::ConstId(it) => drop(db.const_data(it)),
ModuleDefId::StaticId(it) => drop(db.static_data(it)),
ModuleDefId::TraitId(it) => drop(db.trait_data(it)),
ModuleDefId::TypeAliasId(it) => drop(db.type_alias_data(it)),
ModuleDefId::EnumVariantId(_)
| ModuleDefId::ModuleId(_)
| ModuleDefId::MacroId(_)
| ModuleDefId::BuiltinType(_) => unreachable!(),
}
}
});
let n_reparsed_files = events.iter().filter(|it| it.contains("parse(")).count();
assert_eq!(n_reparsed_files, 0);
}
}
|
