split module source into decl/defin

crates/ra_analysis/src/lib.rs

@@ -397,7 +397,7 @@ impl Analysis {
     }
     /// Returns the root file of the given crate.
     pub fn crate_root(&self, crate_id: CrateId) -> Cancelable<FileId> {
-        Ok(self.db.crate_root(crate_id))
+        Ok(self.db.crate_graph().crate_root(crate_id))
     }
     /// Returns the set of possible targets to run for the current file.
     pub fn runnables(&self, file_id: FileId) -> Cancelable<Vec<Runnable>> {

crates/ra_analysis/src/runnables.rs

@@ -73,11 +73,11 @@ fn runnable_mod(db: &RootDatabase, file_id: FileId, module: ast::Module) -> Opti
     let module =
         hir::source_binder::module_from_child_node(db, file_id, module.syntax()).ok()??;
     let path = module
-        .path_to_root()
+        .path_to_root(db)
+        .ok()?
         .into_iter()
         .rev()
-        .into_iter()
-        .filter_map(|it| it.name().map(Clone::clone))
+        .filter_map(|it| it.name(db).map(Clone::clone))
         .join("::");
     Some(Runnable {
         range,