flatten module structure

crates/ra_hir/src/code_model_api.rs

@@ -1,7 +1,8 @@
+use relative_path::RelativePathBuf;
 use ra_db::{CrateId, Cancelable, FileId};
 use ra_syntax::{ast, SyntaxNode};
 
-use crate::{Name, db::HirDatabase, DefId, Path, PerNs, module::{Problem, ModuleScope}};
+use crate::{Name, db::HirDatabase, DefId, Path, PerNs, nameres::ModuleScope};
 
 /// hir::Crate describes a single crate. It's the main inteface with which
 /// crate's dependencies interact. Mostly, it should be just a proxy for the
@@ -39,6 +40,17 @@ pub enum ModuleSource {
     Module(ast::ModuleNode),
 }
 
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub enum Problem {
+    UnresolvedModule {
+        candidate: RelativePathBuf,
+    },
+    NotDirOwner {
+        move_to: RelativePathBuf,
+        candidate: RelativePathBuf,
+    },
+}
+
 impl Module {
     /// Name of this module.
     pub fn name(&self, db: &impl HirDatabase) -> Cancelable<Option<Name>> {