1 files changed, 43 insertions, 0 deletions

diff --git a/crates/libanalysis/src/db/queries.rs b/crates/libanalysis/src/db/queries.rs
new file mode 100644
index 000000000..2d4aac6e9
--- /dev/null
+++ b/crates/libanalysis/src/db/queries.rs
@@ -0,0 +1,43 @@
+use std::sync::Arc;
+use libsyntax2::{File};
+use {
+    FileId, FileResolverImp,
+    db::{Query, GroundQuery, QueryCtx, hash},
+};
+
+
+impl<'a> QueryCtx<'a> {
+    pub(crate) fn file_set(&self) -> Arc<(Vec<FileId>, FileResolverImp)> {
+        self.get_g(FILE_SET, ())
+    }
+    pub(crate) fn file_text(&self, file_id: FileId) -> Arc<str> {
+        Arc::clone(&*self.get_g(FILE_TEXT, file_id))
+    }
+    pub(crate) fn file_syntax(&self, file_id: FileId) -> File {
+        (&*self.get(FILE_SYNTAX, file_id)).clone()
+    }
+}
+
+pub(super) const FILE_TEXT: GroundQuery<FileId, Arc<str>> = GroundQuery {
+    id: 10,
+    f: |state, id| state.file_map[&id].clone(),
+    h: hash,
+};
+
+pub(super) const FILE_SET: GroundQuery<(), (Vec<FileId>, FileResolverImp)> = GroundQuery {
+    id: 11,
+    f: |state, &()| {
+        let files = state.file_map.keys().cloned().collect();
+        let resolver = state.resolver.clone();
+        (files, resolver)
+    },
+    h: |(files, _)| hash(files),
+};
+
+pub(super) const FILE_SYNTAX: Query<FileId, File> = Query {
+    id: 20,
+    f: |ctx, file_id: &FileId| {
+        let text = ctx.file_text(*file_id);
+        File::parse(&*text)
+    }
+};