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
|
use std::sync::Arc;
use std::path::Path;
use std::collections::HashSet;
use rustc_hash::FxHashMap;
use ra_db::{
CrateGraph, FileId, SourceRoot, SourceRootId, SourceDatabase, salsa,
};
use ra_hir::{db, HirInterner};
use ra_project_model::ProjectWorkspace;
use ra_vfs::{Vfs, VfsChange};
type Result<T> = std::result::Result<T, failure::Error>;
#[salsa::database(
ra_db::SourceDatabaseStorage,
db::HirDatabaseStorage,
db::PersistentHirDatabaseStorage
)]
#[derive(Debug)]
pub struct BatchDatabase {
runtime: salsa::Runtime<BatchDatabase>,
interner: Arc<HirInterner>,
}
impl salsa::Database for BatchDatabase {
fn salsa_runtime(&self) -> &salsa::Runtime<BatchDatabase> {
&self.runtime
}
}
impl AsRef<HirInterner> for BatchDatabase {
fn as_ref(&self) -> &HirInterner {
&self.interner
}
}
fn vfs_file_to_id(f: ra_vfs::VfsFile) -> FileId {
FileId(f.0.into())
}
fn vfs_root_to_id(r: ra_vfs::VfsRoot) -> SourceRootId {
SourceRootId(r.0.into())
}
impl BatchDatabase {
pub fn load(crate_graph: CrateGraph, vfs: &mut Vfs) -> BatchDatabase {
let mut db =
BatchDatabase { runtime: salsa::Runtime::default(), interner: Default::default() };
db.set_crate_graph(Arc::new(crate_graph));
// wait until Vfs has loaded all roots
let receiver = vfs.task_receiver().clone();
let mut roots_loaded = HashSet::new();
for task in receiver {
vfs.handle_task(task);
let mut done = false;
for change in vfs.commit_changes() {
match change {
VfsChange::AddRoot { root, files } => {
let source_root_id = vfs_root_to_id(root);
log::debug!(
"loaded source root {:?} with path {:?}",
source_root_id,
vfs.root2path(root)
);
let mut file_map = FxHashMap::default();
for (vfs_file, path, text) in files {
let file_id = vfs_file_to_id(vfs_file);
db.set_file_text(file_id, text);
db.set_file_relative_path(file_id, path.clone());
db.set_file_source_root(file_id, source_root_id);
file_map.insert(path, file_id);
}
let source_root = SourceRoot { files: file_map };
db.set_source_root(source_root_id, Arc::new(source_root));
roots_loaded.insert(source_root_id);
if roots_loaded.len() == vfs.n_roots() {
done = true;
}
}
VfsChange::AddFile { .. }
| VfsChange::RemoveFile { .. }
| VfsChange::ChangeFile { .. } => {
// We just need the first scan, so just ignore these
}
}
}
if done {
break;
}
}
db
}
pub fn load_cargo(root: impl AsRef<Path>) -> Result<(BatchDatabase, Vec<SourceRootId>)> {
let root = std::env::current_dir()?.join(root);
let ws = ProjectWorkspace::discover(root.as_ref())?;
let mut roots = Vec::new();
roots.push(root.clone());
roots.extend(ws.to_roots());
let (mut vfs, roots) = Vfs::new(roots);
let mut load = |path: &Path| {
let vfs_file = vfs.load(path);
log::debug!("vfs file {:?} -> {:?}", path, vfs_file);
vfs_file.map(vfs_file_to_id)
};
let crate_graph = ws.to_crate_graph(&mut load);
log::debug!("crate graph: {:?}", crate_graph);
let local_roots = roots
.into_iter()
.filter(|r| vfs.root2path(*r).starts_with(&root))
.map(vfs_root_to_id)
.collect();
let db = BatchDatabase::load(crate_graph, &mut vfs);
Ok((db, local_roots))
}
}
#[cfg(test)]
mod tests {
use ra_hir::Crate;
use super::*;
#[test]
fn test_loading_rust_analyzer() {
let mut path = std::env::current_exe().unwrap();
while !path.join("Cargo.toml").is_file() {
path = path.parent().unwrap().to_owned();
}
let (db, roots) = BatchDatabase::load_cargo(path).unwrap();
let mut n_crates = 0;
for root in roots {
for _krate in Crate::source_root_crates(&db, root) {
n_crates += 1;
}
}
// RA has quite a few crates, but the exact count doesn't matter
assert!(n_crates > 20);
}
}
|
