2 files changed, 12 insertions, 15 deletions

diff --git a/crates/ra_hir_def/src/nameres/collector.rs b/crates/ra_hir_def/src/nameres/collector.rs
index 193067f73..6352c71ef 100644
--- a/crates/ra_hir_def/src/nameres/collector.rs
+++ b/crates/ra_hir_def/src/nameres/collector.rs
@@ -22,7 +22,7 @@ use crate::{
         diagnostics::DefDiagnostic, mod_resolution::ModDir, path_resolution::ReachedFixedPoint,
         raw, BuiltinShadowMode, CrateDefMap, ModuleData, ModuleOrigin, ResolveMode,
     },
-    path::{ModPath, PathKind},
+    path::{ImportAlias, ModPath, PathKind},
     per_ns::PerNs,
     visibility::Visibility,
     AdtId, AstId, ConstLoc, ContainerId, EnumLoc, EnumVariantId, FunctionLoc, ImplLoc, Intern,
@@ -439,8 +439,9 @@ where
             match import.path.segments.last() {
                 Some(last_segment) => {
                     let name = match &import.alias {
-                        raw::ImportAlias::Alias(name) => name.clone(),
-                        _ => last_segment.clone(), // "use as ;" and "use as _;" are treated the same way
+                        Some(ImportAlias::Alias(name)) => name.clone(),
+                        Some(ImportAlias::Underscore) => last_segment.clone(), // FIXME rust-analyzer#2736
+                        None => last_segment.clone(),
                     };
                     log::debug!("resolved import {:?} ({:?}) to {:?}", name, import, def);
 
diff --git a/crates/ra_hir_def/src/nameres/raw.rs b/crates/ra_hir_def/src/nameres/raw.rs
index f068b4d4e..650cf1f98 100644
--- a/crates/ra_hir_def/src/nameres/raw.rs
+++ b/crates/ra_hir_def/src/nameres/raw.rs
@@ -22,8 +22,11 @@ use ra_syntax::{
 use test_utils::tested_by;
 
 use crate::{
-    attr::Attrs, db::DefDatabase, path::ModPath, visibility::RawVisibility, FileAstId, HirFileId,
-    InFile,
+    attr::Attrs,
+    db::DefDatabase,
+    path::{ImportAlias, ModPath},
+    visibility::RawVisibility,
+    FileAstId, HirFileId, InFile,
 };
 
 /// `RawItems` is a set of top-level items in a file (except for impls).
@@ -145,7 +148,7 @@ impl_arena_id!(Import);
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct ImportData {
     pub(super) path: ModPath,
-    pub(super) alias: ImportAlias,
+    pub(super) alias: Option<ImportAlias>,
     pub(super) is_glob: bool,
     pub(super) is_prelude: bool,
     pub(super) is_extern_crate: bool,
@@ -153,13 +156,6 @@ pub struct ImportData {
     pub(super) visibility: RawVisibility,
 }
 
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub enum ImportAlias {
-    NoAlias,
-    Unnamed, // use Foo as _;
-    Alias(Name),
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub(super) struct Def(RawId);
 impl_arena_id!(Def);
@@ -360,10 +356,10 @@ impl RawItemsCollector {
             let path = ModPath::from_name_ref(&name_ref);
             let visibility =
                 RawVisibility::from_ast_with_hygiene(extern_crate.visibility(), &self.hygiene);
-            let alias = extern_crate.alias().map_or(ImportAlias::NoAlias, |a| {
+            let alias = extern_crate.alias().map(|a| {
                 a.name()
                     .map(|it| it.as_name())
-                    .map_or(ImportAlias::Unnamed, |a| ImportAlias::Alias(a))
+                    .map_or(ImportAlias::Underscore, |a| ImportAlias::Alias(a))
             });
             let attrs = self.parse_attrs(&extern_crate);
             // FIXME: cfg_attr