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-rw-r--r--crates/ra_analysis/src/db/imp.rs153
1 files changed, 0 insertions, 153 deletions
diff --git a/crates/ra_analysis/src/db/imp.rs b/crates/ra_analysis/src/db/imp.rs
deleted file mode 100644
index 36f6cf290..000000000
--- a/crates/ra_analysis/src/db/imp.rs
+++ /dev/null
@@ -1,153 +0,0 @@
1use std::{
2 sync::Arc,
3 any::Any,
4 hash::{Hash, Hasher},
5 collections::hash_map::{DefaultHasher},
6 iter,
7};
8use rustc_hash::FxHashMap;
9use salsa;
10use {FileId, imp::FileResolverImp};
11use super::{State, Query, QueryCtx};
12
13pub(super) type Data = Arc<Any + Send + Sync + 'static>;
14
15#[derive(Debug)]
16pub(super) struct Db {
17 names: Arc<FxHashMap<salsa::QueryTypeId, &'static str>>,
18 pub(super) imp: salsa::Db<State, Data>,
19}
20
21impl Db {
22 pub(super) fn new(mut reg: QueryRegistry) -> Db {
23 let config = reg.config.take().unwrap();
24 Db {
25 names: Arc::new(reg.names),
26 imp: salsa::Db::new(config, State::default())
27 }
28 }
29 pub(crate) fn with_changes(&self, new_state: State, changed_files: &[FileId], resolver_changed: bool) -> Db {
30 let names = self.names.clone();
31 let mut invalidations = salsa::Invalidations::new();
32 invalidations.invalidate(FILE_TEXT, changed_files.iter().map(hash).map(salsa::InputFingerprint));
33 if resolver_changed {
34 invalidations.invalidate(FILE_SET, iter::once(salsa::InputFingerprint(hash(&()))));
35 } else {
36 invalidations.invalidate(FILE_SET, iter::empty());
37 }
38 let imp = self.imp.with_ground_data(
39 new_state,
40 invalidations,
41 );
42 Db { names, imp }
43 }
44 pub(super) fn extract_trace(&self, ctx: &salsa::QueryCtx<State, Data>) -> Vec<&'static str> {
45 ctx.trace().into_iter().map(|it| self.names[&it]).collect()
46 }
47}
48
49pub(crate) trait EvalQuery {
50 type Params;
51 type Output;
52 fn query_type(&self) -> salsa::QueryTypeId;
53 fn f(&self) -> salsa::QueryFn<State, Data>;
54 fn get(&self, &QueryCtx, Self::Params) -> Arc<Self::Output>;
55}
56
57impl<T, R> EvalQuery for Query<T, R>
58where
59 T: Hash + Send + Sync + 'static,
60 R: Hash + Send + Sync + 'static,
61{
62 type Params = T;
63 type Output = R;
64 fn query_type(&self) -> salsa::QueryTypeId {
65 salsa::QueryTypeId(self.0)
66 }
67 fn f(&self) -> salsa::QueryFn<State, Data> {
68 let f = self.1;
69 Box::new(move |ctx, data| {
70 let ctx = QueryCtx { imp: ctx };
71 let data: &T = data.downcast_ref().unwrap();
72 let res = f(ctx, data);
73 let h = hash(&res);
74 (Arc::new(res), salsa::OutputFingerprint(h))
75 })
76 }
77 fn get(&self, ctx: &QueryCtx, params: Self::Params) -> Arc<Self::Output> {
78 let query_id = salsa::QueryId(
79 self.query_type(),
80 salsa::InputFingerprint(hash(&params)),
81 );
82 let res = ctx.imp.get(query_id, Arc::new(params));
83 res.downcast().unwrap()
84 }
85}
86
87pub(super) struct QueryRegistry {
88 config: Option<salsa::QueryConfig<State, Data>>,
89 names: FxHashMap<salsa::QueryTypeId, &'static str>,
90}
91
92impl QueryRegistry {
93 pub(super) fn new() -> QueryRegistry {
94 let mut config = salsa::QueryConfig::<State, Data>::new();
95 config = config.with_ground_query(
96 FILE_TEXT, Box::new(|state, params| {
97 let file_id: &FileId = params.downcast_ref().unwrap();
98 let res = state.file_map[file_id].clone();
99 let fingerprint = salsa::OutputFingerprint(hash(&res));
100 (res, fingerprint)
101 })
102 );
103 config = config.with_ground_query(
104 FILE_SET, Box::new(|state, _params| {
105 let file_ids: Vec<FileId> = state.file_map.keys().cloned().collect();
106 let hash = hash(&file_ids);
107 let file_resolver = state.file_resolver.clone();
108 let res = (file_ids, file_resolver);
109 let fingerprint = salsa::OutputFingerprint(hash);
110 (Arc::new(res), fingerprint)
111 })
112 );
113 let mut names = FxHashMap::default();
114 names.insert(FILE_TEXT, "FILE_TEXT");
115 names.insert(FILE_SET, "FILE_SET");
116 QueryRegistry { config: Some(config), names }
117 }
118 pub(super) fn add<Q: EvalQuery>(&mut self, q: Q, name: &'static str) {
119 let id = q.query_type();
120 let prev = self.names.insert(id, name);
121 assert!(prev.is_none(), "duplicate query: {:?}", id);
122 let config = self.config.take().unwrap();
123 let config = config.with_query(id, q.f());
124 self.config= Some(config);
125 }
126}
127
128fn hash<T: Hash>(x: &T) -> u64 {
129 let mut hasher = DefaultHasher::new();
130 x.hash(&mut hasher);
131 hasher.finish()
132}
133
134const FILE_TEXT: salsa::QueryTypeId = salsa::QueryTypeId(0);
135pub(super) fn file_text(ctx: QueryCtx, file_id: FileId) -> Arc<String> {
136 let query_id = salsa::QueryId(
137 FILE_TEXT,
138 salsa::InputFingerprint(hash(&file_id)),
139 );
140 let res = ctx.imp.get(query_id, Arc::new(file_id));
141 res.downcast().unwrap()
142}
143
144const FILE_SET: salsa::QueryTypeId = salsa::QueryTypeId(1);
145pub(super) fn file_set(ctx: QueryCtx) -> Arc<(Vec<FileId>, FileResolverImp)> {
146 let query_id = salsa::QueryId(
147 FILE_SET,
148 salsa::InputFingerprint(hash(&())),
149 );
150 let res = ctx.imp.get(query_id, Arc::new(()));
151 res.downcast().unwrap()
152}
153
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-16 05:00:58 +0100