4 files changed, 26 insertions, 21 deletions

diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 4b3ec5457..50c9a79fc 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -9,7 +9,7 @@ use hir_def::{
     body::scope::ExprScopes,
     builtin_type::BuiltinType,
     docs::Documentation,
-    nameres::per_ns::PerNs,
+    nameres::{per_ns::PerNs, raw::ImportId},
     resolver::{HasResolver, TypeNs},
     type_ref::TypeRef,
     ContainerId, CrateModuleId, HasModule, ImplId, LocalEnumVariantId, LocalStructFieldId, Lookup,
@@ -30,7 +30,7 @@ use crate::{
         TypeAliasId,
     },
     ty::{InferenceResult, Namespace, TraitRef},
-    Either, HasSource, ImportId, Name, Source, Ty,
+    Either, HasSource, Name, Source, Ty,
 };
 
 /// hir::Crate describes a single crate. It's the main interface with which
@@ -129,17 +129,6 @@ impl Module {
         })
     }
 
-    /// Returns the syntax of the last path segment corresponding to this import
-    pub fn import_source(
-        self,
-        db: &impl HirDatabase,
-        import: ImportId,
-    ) -> Either<ast::UseTree, ast::ExternCrateItem> {
-        let src = self.definition_source(db);
-        let (_, source_map) = db.raw_items_with_source_map(src.file_id);
-        source_map.get(&src.value, import)
-    }
-
     /// Returns the crate this module is part of.
     pub fn krate(self) -> Crate {
         Crate { crate_id: self.id.krate }
@@ -189,11 +178,13 @@ impl Module {
     }
 
     /// Returns a `ModuleScope`: a set of items, visible in this module.
-    pub fn scope(self, db: &impl HirDatabase) -> Vec<(Name, ScopeDef, Option<ImportId>)> {
+    pub fn scope(self, db: &impl HirDatabase) -> Vec<(Name, ScopeDef, Option<Import>)> {
         db.crate_def_map(self.id.krate)[self.id.module_id]
             .scope
             .entries()
-            .map(|(name, res)| (name.clone(), res.def.into(), res.import))
+            .map(|(name, res)| {
+                (name.clone(), res.def.into(), res.import.map(|id| Import { parent: self, id }))
+            })
             .collect()
     }
 
@@ -236,6 +227,11 @@ impl Module {
     }
 }
 
+pub struct Import {
+    pub(crate) parent: Module,
+    pub(crate) id: ImportId,
+}
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct StructField {
     pub(crate) parent: VariantDef,
diff --git a/crates/ra_hir/src/code_model/src.rs b/crates/ra_hir/src/code_model/src.rs
index 09bacf579..ceb3daa27 100644
--- a/crates/ra_hir/src/code_model/src.rs
+++ b/crates/ra_hir/src/code_model/src.rs
@@ -8,7 +8,7 @@ use crate::{
     db::{AstDatabase, DefDatabase, HirDatabase},
     ids::AstItemDef,
     Const, Enum, EnumVariant, FieldSource, Function, HasBody, MacroDef, Module, ModuleSource,
-    Static, Struct, StructField, Trait, TypeAlias, Union,
+    Static, Struct, StructField, Trait, TypeAlias, Union, Import
 };
 
 pub use hir_expand::Source;
@@ -113,6 +113,16 @@ impl HasSource for MacroDef {
         Source { file_id: self.id.ast_id.file_id(), value: self.id.ast_id.to_node(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 + AstDatabase)) -> Source<Self::Ast> {
+        let src = self.parent.definition_source(db);
+        let (_, source_map) = db.raw_items_with_source_map(src.file_id);
+        src.with_value(source_map.get(&src.value, self.id))
+    }
+}
 
 pub trait HasBodySource: HasBody + HasSource
 where
diff --git a/crates/ra_hir/src/lib.rs b/crates/ra_hir/src/lib.rs
index d42161612..e51d4d063 100644
--- a/crates/ra_hir/src/lib.rs
+++ b/crates/ra_hir/src/lib.rs
@@ -53,8 +53,8 @@ pub use crate::{
         src::{HasBodySource, HasSource},
         Adt, AssocItem, AttrDef, Const, Container, Crate, CrateDependency, DefWithBody, Docs, Enum,
         EnumVariant, FieldSource, Function, GenericDef, GenericParam, HasAttrs, HasBody, ImplBlock,
-        Local, MacroDef, Module, ModuleDef, ModuleSource, ScopeDef, Static, Struct, StructField,
-        Trait, TypeAlias, Union, VariantDef,
+        Import, Local, MacroDef, Module, ModuleDef, ModuleSource, ScopeDef, Static, Struct,
+        StructField, Trait, TypeAlias, Union, VariantDef,
     },
     expr::ExprScopes,
     from_source::FromSource,
@@ -70,7 +70,6 @@ pub use crate::{
 pub use hir_def::{
     builtin_type::BuiltinType,
     docs::Documentation,
-    nameres::raw::ImportId,
     path::{Path, PathKind},
     type_ref::Mutability,
 };
diff --git a/crates/ra_ide_api/src/completion/complete_path.rs b/crates/ra_ide_api/src/completion/complete_path.rs
index 802c7701a..63e25e0bf 100644
--- a/crates/ra_ide_api/src/completion/complete_path.rs
+++ b/crates/ra_ide_api/src/completion/complete_path.rs
@@ -1,6 +1,6 @@
 //! FIXME: write short doc here
 
-use hir::{Adt, Either, PathResolution};
+use hir::{Adt, Either, HasSource, PathResolution};
 use ra_syntax::AstNode;
 use test_utils::tested_by;
 
@@ -27,7 +27,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
                 }
                 if Some(module) == ctx.module {
                     if let Some(import) = import {
-                        if let Either::A(use_tree) = module.import_source(ctx.db, import) {
+                        if let Either::A(use_tree) = import.source(ctx.db).value {
                             if use_tree.syntax().text_range().contains_inclusive(ctx.offset) {
                                 // for `use self::foo<|>`, don't suggest `foo` as a completion
                                 tested_by!(dont_complete_current_use);