Revert "Merge #2629"

This reverts commit cdc9d682b066b110e0a44e5f8f1c574b38c16ba9, reversing
changes made to 90ef070db3dce0a7acb9cd11d0b0d72de13c9d79.

1 files changed, 14 insertions, 2 deletions

diff --git a/crates/ra_hir/src/has_source.rs b/crates/ra_hir/src/has_source.rs
index 5541266e2..72afecf26 100644
--- a/crates/ra_hir/src/has_source.rs
+++ b/crates/ra_hir/src/has_source.rs
@@ -9,8 +9,8 @@ use hir_def::{
 use ra_syntax::ast;
 
 use crate::{
-    db::DefDatabase, Const, Enum, EnumVariant, FieldSource, Function, ImplBlock, MacroDef, Module,
-    Static, Struct, StructField, Trait, TypeAlias, TypeParam, Union,
+    db::DefDatabase, Const, Enum, EnumVariant, FieldSource, Function, ImplBlock, Import, MacroDef,
+    Module, Static, Struct, StructField, Trait, TypeAlias, TypeParam, Union,
 };
 
 pub use hir_expand::InFile;
@@ -117,6 +117,18 @@ impl HasSource for ImplBlock {
         self.id.lookup(db).source(db)
     }
 }
+impl HasSource for Import {
+    type Ast = Either<ast::UseTree, ast::ExternCrateItem>;
+
+    /// Returns the syntax of the last path segment corresponding to this import
+    fn source(self, db: &impl DefDatabase) -> InFile<Self::Ast> {
+        let src = self.parent.definition_source(db);
+        let (_, source_map) = db.raw_items_with_source_map(src.file_id);
+        let root = db.parse_or_expand(src.file_id).unwrap();
+        let ptr = source_map.get(self.id);
+        src.with_value(ptr.map_left(|it| it.to_node(&root)).map_right(|it| it.to_node(&root)))
+    }
+}
 
 impl HasSource for TypeParam {
     type Ast = Either<ast::TraitDef, ast::TypeParam>;