Merge #67

67: Salsa r=matklad a=matklad

The aim of this PR is to transition from rather ad-hock FileData and ModuleMap caching strategy to something resembling a general-purpose red-green engine. 

Ideally, we shouldn't recompute ModuleMap at all, unless the set of mod decls or files changes.



Co-authored-by: Aleksey Kladov <[email protected]>

1 files changed, 11 insertions, 1 deletions

diff --git a/crates/libanalysis/src/symbol_index.rs b/crates/libanalysis/src/symbol_index.rs
index 4c93761aa..d22187ac0 100644
--- a/crates/libanalysis/src/symbol_index.rs
+++ b/crates/libanalysis/src/symbol_index.rs
@@ -1,3 +1,7 @@
+use std::{
+    sync::Arc,
+    hash::{Hash, Hasher},
+};
 use libeditor::{FileSymbol, file_symbols};
 use libsyntax2::{
     File,
@@ -13,6 +17,12 @@ pub(crate) struct SymbolIndex {
     map: fst::Map,
 }
 
+impl Hash for SymbolIndex {
+    fn hash<H: Hasher>(&self, hasher: &mut H) {
+        self.symbols.hash(hasher)
+    }
+}
+
 impl SymbolIndex {
     pub(crate) fn for_files(files: impl ParallelIterator<Item=(FileId, File)>) -> SymbolIndex {
         let mut symbols = files
@@ -43,7 +53,7 @@ impl SymbolIndex {
 impl Query {
     pub(crate) fn search(
         self,
-        indices: &[&SymbolIndex],
+        indices: &[Arc<SymbolIndex>],
         token: &JobToken,
     ) -> Vec<(FileId, FileSymbol)> {