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
|
//! Database used for testing `hir`.
use std::{
fmt, panic,
sync::{Arc, Mutex},
};
use base_db::{salsa, CrateId, FileId, FileLoader, FileLoaderDelegate, SourceDatabase, Upcast};
use hir_def::{db::DefDatabase, ModuleId};
use hir_expand::db::AstDatabase;
use rustc_hash::{FxHashMap, FxHashSet};
use syntax::TextRange;
use test_utils::extract_annotations;
#[salsa::database(
base_db::SourceDatabaseExtStorage,
base_db::SourceDatabaseStorage,
hir_expand::db::AstDatabaseStorage,
hir_def::db::InternDatabaseStorage,
hir_def::db::DefDatabaseStorage,
crate::db::HirDatabaseStorage
)]
#[derive(Default)]
pub struct TestDB {
storage: salsa::Storage<TestDB>,
events: Mutex<Option<Vec<salsa::Event>>>,
}
impl fmt::Debug for TestDB {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("TestDB").finish()
}
}
impl Upcast<dyn AstDatabase> for TestDB {
fn upcast(&self) -> &(dyn AstDatabase + 'static) {
&*self
}
}
impl Upcast<dyn DefDatabase> for TestDB {
fn upcast(&self) -> &(dyn DefDatabase + 'static) {
&*self
}
}
impl salsa::Database for TestDB {
fn salsa_event(&self, event: salsa::Event) {
let mut events = self.events.lock().unwrap();
if let Some(events) = &mut *events {
events.push(event);
}
}
}
impl salsa::ParallelDatabase for TestDB {
fn snapshot(&self) -> salsa::Snapshot<TestDB> {
salsa::Snapshot::new(TestDB {
storage: self.storage.snapshot(),
events: Default::default(),
})
}
}
impl panic::RefUnwindSafe for TestDB {}
impl FileLoader for TestDB {
fn file_text(&self, file_id: FileId) -> Arc<String> {
FileLoaderDelegate(self).file_text(file_id)
}
fn resolve_path(&self, anchor: FileId, path: &str) -> Option<FileId> {
FileLoaderDelegate(self).resolve_path(anchor, path)
}
fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
FileLoaderDelegate(self).relevant_crates(file_id)
}
}
impl TestDB {
pub(crate) fn module_for_file(&self, file_id: FileId) -> ModuleId {
for &krate in self.relevant_crates(file_id).iter() {
let crate_def_map = self.crate_def_map(krate);
for (local_id, data) in crate_def_map.modules.iter() {
if data.origin.file_id() == Some(file_id) {
return ModuleId { krate, local_id };
}
}
}
panic!("Can't find module for file")
}
pub(crate) fn extract_annotations(&self) -> FxHashMap<FileId, Vec<(TextRange, String)>> {
let mut files = Vec::new();
let crate_graph = self.crate_graph();
for krate in crate_graph.iter() {
let crate_def_map = self.crate_def_map(krate);
for (module_id, _) in crate_def_map.modules.iter() {
let file_id = crate_def_map[module_id].origin.file_id();
files.extend(file_id)
}
}
files
.into_iter()
.filter_map(|file_id| {
let text = self.file_text(file_id);
let annotations = extract_annotations(&text);
if annotations.is_empty() {
return None;
}
Some((file_id, annotations))
})
.collect()
}
}
impl TestDB {
pub fn log(&self, f: impl FnOnce()) -> Vec<salsa::Event> {
*self.events.lock().unwrap() = Some(Vec::new());
f();
self.events.lock().unwrap().take().unwrap()
}
pub fn log_executed(&self, f: impl FnOnce()) -> Vec<String> {
let events = self.log(f);
events
.into_iter()
.filter_map(|e| match e.kind {
// This pretty horrible, but `Debug` is the only way to inspect
// QueryDescriptor at the moment.
salsa::EventKind::WillExecute { database_key } => {
Some(format!("{:?}", database_key.debug(self)))
}
_ => None,
})
.collect()
}
}
|
