Merge #1478

1478: [WIP] Added resolve submodules with raw name r=matklad a=andreevlex

#1211

Co-authored-by: Alexander Andreev <andreevlex.as@gmail.com>

crates/ra_hir/src/name.rs

@@ -98,13 +98,15 @@ pub(crate) trait AsName {
 
 impl AsName for ast::NameRef {
     fn as_name(&self) -> Name {
-        Name::new(self.text().clone())
+        let name = resolve_name(self.text());
+        Name::new(name)
     }
 }
 
 impl AsName for ast::Name {
     fn as_name(&self) -> Name {
-        Name::new(self.text().clone())
+        let name = resolve_name(self.text());
+        Name::new(name)
     }
 }
 
@@ -184,3 +186,12 @@ impl AsName for KnownName {
         Name::new(s.into())
     }
 }
+
+fn resolve_name(text: &SmolStr) -> SmolStr {
+    let raw_start = "r#";
+    if text.as_str().starts_with(raw_start) {
+        SmolStr::new(&text[raw_start.len()..])
+    } else {
+        text.clone()
+    }
+}

crates/ra_hir/src/nameres/tests.rs

@@ -338,6 +338,32 @@ fn module_resolution_works_for_non_standard_filenames() {
     "###);
 }
 
+#[test]
+fn module_resolution_works_for_raw_modules() {
+    let map = def_map_with_crate_graph(
+        "
+        //- /library.rs
+        mod r#async;
+        use self::r#async::Bar;
+
+        //- /async.rs
+        pub struct Bar;
+        ",
+        crate_graph! {
+            "library": ("/library.rs", []),
+        },
+    );
+
+    assert_snapshot_matches!(map, @r###"
+        ⋮crate
+        ⋮Bar: t v
+        ⋮async: t
+        ⋮
+        ⋮crate::async
+        ⋮Bar: t v
+    "###);
+}
+
 #[test]
 fn name_res_works_for_broken_modules() {
     covers!(name_res_works_for_broken_modules);