From 005bc49d744f6a7c2ef38a4abd3327b0804709d1 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Sat, 20 Feb 2021 23:32:21 +0200
Subject: Test and initial refactoring

---
 crates/ide_completion/src/completions/flyimport.rs | 37 ++++++++++++++++++++--
 1 file changed, 34 insertions(+), 3 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index f34764b61..16384551c 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -168,15 +168,15 @@ fn import_assets(ctx: &CompletionContext, fuzzy_name: String) -> Option<ImportAs
             ctx.path_qual.clone(),
             fuzzy_name,
             &ctx.sema,
-        );
+        )?;
 
-        if matches!(assets_for_path.as_ref()?.import_candidate(), ImportCandidate::Path(_))
+        if matches!(assets_for_path.import_candidate(), ImportCandidate::Path(_))
             && fuzzy_name_length < 2
         {
             cov_mark::hit!(ignore_short_input_for_path);
             None
         } else {
-            assets_for_path
+            Some(assets_for_path)
         }
     }
 }
@@ -773,4 +773,35 @@ fn main() {
 }"#,
         );
     }
+
+    #[test]
+    fn unresolved_qualifiers() {
+        check_edit(
+            "Item",
+            r#"
+mod foo {
+    pub mod bar {
+        pub struct Item;
+    }
+}
+
+fn main() {
+    bar::Ite$0
+}
+"#,
+            r#"
+use foo::bar;
+
+mod foo {
+    pub mod bar {
+        pub struct Item;
+    }
+}
+
+fn main() {
+    bar::Item
+}
+"#,
+        );
+    }
 }
-- 
cgit v1.2.3


From 309421c117fc20e58b9f30fb28a01a89f50b0086 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Wed, 24 Feb 2021 01:20:00 +0200
Subject: Draft the qualifier import resolution

---
 crates/ide_completion/src/completions/flyimport.rs | 84 +++++++++++++++++++++-
 1 file changed, 81 insertions(+), 3 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index 16384551c..64b60bbdd 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -775,18 +775,92 @@ fn main() {
     }
 
     #[test]
-    fn unresolved_qualifiers() {
+    fn unresolved_qualifier() {
+        check_edit(
+            "Item",
+            r#"
+mod foo {
+    pub mod bar {
+        pub mod baz {
+            pub struct Item;
+        }
+    }
+}
+
+fn main() {
+    bar::baz::Ite$0
+}
+"#,
+            r#"
+use foo::bar;
+
+mod foo {
+    pub mod bar {
+        pub mod baz {
+            pub struct Item;
+        }
+    }
+}
+
+fn main() {
+    bar::baz::Item
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn unresolved_assoc_item_container() {
+        check_edit(
+            "Item",
+            r#"
+mod foo {
+    pub struct Item;
+
+    impl Item {
+        pub const TEST_ASSOC: usize = 3;
+    }
+}
+
+fn main() {
+    Item::TEST_A$0;
+}
+"#,
+            r#"
+use foo::Item;
+
+mod foo {
+    pub struct Item;
+
+    impl Item {
+        pub const TEST_ASSOC: usize = 3;
+    }
+}
+
+fn main() {
+    Item::TEST_ASSOC
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn unresolved_assoc_item_container_with_path() {
         check_edit(
             "Item",
             r#"
 mod foo {
     pub mod bar {
         pub struct Item;
+
+        impl Item {
+            pub const TEST_ASSOC: usize = 3;
+        }
     }
 }
 
 fn main() {
-    bar::Ite$0
+    bar::Item::TEST_A$0;
 }
 "#,
             r#"
@@ -795,11 +869,15 @@ use foo::bar;
 mod foo {
     pub mod bar {
         pub struct Item;
+
+        impl Item {
+            pub const TEST_ASSOC: usize = 3;
+        }
     }
 }
 
 fn main() {
-    bar::Item
+    bar::Item::TEST_ASSOC
 }
 "#,
         );
-- 
cgit v1.2.3


From 582cee2cdf5355b681f14bbb33bd5c431c284d87 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Thu, 25 Feb 2021 01:06:31 +0200
Subject: Return more data about located imports

---
 crates/ide_completion/src/completions/flyimport.rs | 23 ++++++++----------
 crates/ide_completion/src/item.rs                  | 28 ++++++++++------------
 crates/ide_completion/src/lib.rs                   | 20 ++++++++++------
 crates/ide_completion/src/render.rs                |  2 +-
 4 files changed, 37 insertions(+), 36 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index 64b60bbdd..8ff76688e 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -96,21 +96,21 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
     let mut all_mod_paths = import_assets
         .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
         .into_iter()
-        .map(|(mod_path, item_in_ns)| {
-            let scope_item = match item_in_ns {
+        .map(|import| {
+            let proposed_def = match import.item_to_import() {
                 hir::ItemInNs::Types(id) => ScopeDef::ModuleDef(id.into()),
                 hir::ItemInNs::Values(id) => ScopeDef::ModuleDef(id.into()),
                 hir::ItemInNs::Macros(id) => ScopeDef::MacroDef(id.into()),
             };
-            (mod_path, scope_item)
+            (import, proposed_def)
         })
         .filter(|(_, proposed_def)| !scope_definitions.contains(proposed_def))
         .collect::<Vec<_>>();
-    all_mod_paths.sort_by_cached_key(|(mod_path, _)| {
-        compute_fuzzy_completion_order_key(mod_path, &user_input_lowercased)
+    all_mod_paths.sort_by_cached_key(|(import, _)| {
+        compute_fuzzy_completion_order_key(import.display_path(), &user_input_lowercased)
     });
 
-    acc.add_all(all_mod_paths.into_iter().filter_map(|(import_path, definition)| {
+    acc.add_all(all_mod_paths.into_iter().filter_map(|(import, definition)| {
         let import_for_trait_assoc_item = match definition {
             ScopeDef::ModuleDef(module_def) => module_def
                 .as_assoc_item(ctx.db)
@@ -118,11 +118,8 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
                 .is_some(),
             _ => false,
         };
-        let import_edit = ImportEdit {
-            import_path,
-            import_scope: import_scope.clone(),
-            import_for_trait_assoc_item,
-        };
+        let import_edit =
+            ImportEdit { import, import_scope: import_scope.clone(), import_for_trait_assoc_item };
         render_resolution_with_import(RenderContext::new(ctx), import_edit, &definition)
     }));
     Some(())
@@ -186,11 +183,11 @@ fn compute_fuzzy_completion_order_key(
     user_input_lowercased: &str,
 ) -> usize {
     cov_mark::hit!(certain_fuzzy_order_test);
-    let proposed_import_name = match proposed_mod_path.segments().last() {
+    let import_name = match proposed_mod_path.segments().last() {
         Some(name) => name.to_string().to_lowercase(),
         None => return usize::MAX,
     };
-    match proposed_import_name.match_indices(user_input_lowercased).next() {
+    match import_name.match_indices(user_input_lowercased).next() {
         Some((first_matching_index, _)) => first_matching_index,
         None => usize::MAX,
     }
diff --git a/crates/ide_completion/src/item.rs b/crates/ide_completion/src/item.rs
index 9b2435c4b..0390fe226 100644
--- a/crates/ide_completion/src/item.rs
+++ b/crates/ide_completion/src/item.rs
@@ -2,9 +2,10 @@
 
 use std::fmt;
 
-use hir::{Documentation, ModPath, Mutability};
+use hir::{Documentation, Mutability};
 use ide_db::{
     helpers::{
+        import_assets::LocatedImport,
         insert_use::{self, ImportScope, InsertUseConfig},
         mod_path_to_ast, SnippetCap,
     },
@@ -272,7 +273,7 @@ impl CompletionItem {
 /// An extra import to add after the completion is applied.
 #[derive(Debug, Clone)]
 pub struct ImportEdit {
-    pub import_path: ModPath,
+    pub import: LocatedImport,
     pub import_scope: ImportScope,
     pub import_for_trait_assoc_item: bool,
 }
@@ -283,8 +284,11 @@ impl ImportEdit {
     pub fn to_text_edit(&self, cfg: InsertUseConfig) -> Option<TextEdit> {
         let _p = profile::span("ImportEdit::to_text_edit");
 
-        let rewriter =
-            insert_use::insert_use(&self.import_scope, mod_path_to_ast(&self.import_path), cfg);
+        let rewriter = insert_use::insert_use(
+            &self.import_scope,
+            mod_path_to_ast(self.import.import_path()),
+            cfg,
+        );
         let old_ast = rewriter.rewrite_root()?;
         let mut import_insert = TextEdit::builder();
         algo::diff(&old_ast, &rewriter.rewrite(&old_ast)).into_text_edit(&mut import_insert);
@@ -323,19 +327,13 @@ impl Builder {
         let mut insert_text = self.insert_text;
 
         if let Some(import_to_add) = self.import_to_add.as_ref() {
+            lookup = lookup.or_else(|| Some(label.clone()));
+            insert_text = insert_text.or_else(|| Some(label.clone()));
+            let display_path = import_to_add.import.display_path();
             if import_to_add.import_for_trait_assoc_item {
-                lookup = lookup.or_else(|| Some(label.clone()));
-                insert_text = insert_text.or_else(|| Some(label.clone()));
-                label = format!("{} ({})", label, import_to_add.import_path);
+                label = format!("{} ({})", label, display_path);
             } else {
-                let mut import_path_without_last_segment = import_to_add.import_path.to_owned();
-                let _ = import_path_without_last_segment.pop_segment();
-
-                if !import_path_without_last_segment.segments().is_empty() {
-                    lookup = lookup.or_else(|| Some(label.clone()));
-                    insert_text = insert_text.or_else(|| Some(label.clone()));
-                    label = format!("{}::{}", import_path_without_last_segment, label);
-                }
+                label = display_path.to_string();
             }
         }
 
diff --git a/crates/ide_completion/src/lib.rs b/crates/ide_completion/src/lib.rs
index b0b809791..ca2e5e706 100644
--- a/crates/ide_completion/src/lib.rs
+++ b/crates/ide_completion/src/lib.rs
@@ -13,7 +13,9 @@ mod completions;
 
 use completions::flyimport::position_for_import;
 use ide_db::{
-    base_db::FilePosition, helpers::insert_use::ImportScope, imports_locator, RootDatabase,
+    base_db::FilePosition,
+    helpers::{import_assets::LocatedImport, insert_use::ImportScope},
+    imports_locator, RootDatabase,
 };
 use text_edit::TextEdit;
 
@@ -148,12 +150,16 @@ pub fn resolve_completion_edits(
     let current_module = ctx.sema.scope(position_for_import).module()?;
     let current_crate = current_module.krate();
 
-    let import_path = imports_locator::find_exact_imports(&ctx.sema, current_crate, imported_name)
-        .filter_map(|candidate| {
-            let item: hir::ItemInNs = candidate.either(Into::into, Into::into);
-            current_module.find_use_path_prefixed(db, item, config.insert_use.prefix_kind)
-        })
-        .find(|mod_path| mod_path.to_string() == full_import_path)?;
+    let (import_path, item_to_import) =
+        imports_locator::find_exact_imports(&ctx.sema, current_crate, imported_name)
+            .filter_map(|candidate| {
+                let item: hir::ItemInNs = candidate.either(Into::into, Into::into);
+                current_module
+                    .find_use_path_prefixed(db, item, config.insert_use.prefix_kind)
+                    .zip(Some(item))
+            })
+            .find(|(mod_path, _)| mod_path.to_string() == full_import_path)?;
+    let import = LocatedImport::new(import_path, item_to_import, None);
 
     ImportEdit { import_path, import_scope, import_for_trait_assoc_item }
         .to_text_edit(config.insert_use)
diff --git a/crates/ide_completion/src/render.rs b/crates/ide_completion/src/render.rs
index dcfac23c5..df26e7642 100644
--- a/crates/ide_completion/src/render.rs
+++ b/crates/ide_completion/src/render.rs
@@ -56,7 +56,7 @@ pub(crate) fn render_resolution_with_import<'a>(
         ScopeDef::ModuleDef(ModuleDef::Function(f)) => f.name(ctx.completion.db).to_string(),
         ScopeDef::ModuleDef(ModuleDef::Const(c)) => c.name(ctx.completion.db)?.to_string(),
         ScopeDef::ModuleDef(ModuleDef::TypeAlias(t)) => t.name(ctx.completion.db).to_string(),
-        _ => import_edit.import_path.segments().last()?.to_string(),
+        _ => import_edit.import.display_path().segments().last()?.to_string(),
     };
     Render::new(ctx).render_resolution(local_name, Some(import_edit), resolution).map(|mut item| {
         item.completion_kind = CompletionKind::Magic;
-- 
cgit v1.2.3


From d386481fac65e988fa4d13c1bc8d4ddb2bc490c6 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Thu, 25 Feb 2021 01:53:59 +0200
Subject: Fix some tests

---
 crates/ide_completion/src/completions/flyimport.rs | 65 ++++++++++++++++++++--
 crates/ide_completion/src/render.rs                |  7 ++-
 2 files changed, 65 insertions(+), 7 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index 8ff76688e..e33fc4b78 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -97,7 +97,7 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
         .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
         .into_iter()
         .map(|import| {
-            let proposed_def = match import.item_to_import() {
+            let proposed_def = match import.item_to_display() {
                 hir::ItemInNs::Types(id) => ScopeDef::ModuleDef(id.into()),
                 hir::ItemInNs::Values(id) => ScopeDef::ModuleDef(id.into()),
                 hir::ItemInNs::Macros(id) => ScopeDef::MacroDef(id.into()),
@@ -809,7 +809,7 @@ fn main() {
     #[test]
     fn unresolved_assoc_item_container() {
         check_edit(
-            "Item",
+            "TEST_ASSOC",
             r#"
 mod foo {
     pub struct Item;
@@ -820,7 +820,7 @@ mod foo {
 }
 
 fn main() {
-    Item::TEST_A$0;
+    Item::TEST_A$0
 }
 "#,
             r#"
@@ -844,7 +844,7 @@ fn main() {
     #[test]
     fn unresolved_assoc_item_container_with_path() {
         check_edit(
-            "Item",
+            "TEST_ASSOC",
             r#"
 mod foo {
     pub mod bar {
@@ -857,7 +857,7 @@ mod foo {
 }
 
 fn main() {
-    bar::Item::TEST_A$0;
+    bar::Item::TEST_A$0
 }
 "#,
             r#"
@@ -876,6 +876,61 @@ mod foo {
 fn main() {
     bar::Item::TEST_ASSOC
 }
+"#,
+        );
+    }
+
+    #[test]
+    fn unresolved_assoc_item_container_and_trait_with_path() {
+        check_edit(
+            "TEST_ASSOC",
+            r#"
+mod foo {
+    pub mod bar {
+        pub trait SomeTrait {
+            const TEST_ASSOC: usize;
+        }
+    }
+
+    pub mod baz {
+        use super::bar::SomeTrait;
+
+        pub struct Item;
+
+        impl SomeTrait for Item {
+            const TEST_ASSOC: usize = 3;
+        }
+    }
+}
+
+fn main() {
+    baz::Item::TEST_A$0
+}
+"#,
+            r#"
+use foo::{bar::SomeTrait, baz};
+
+mod foo {
+    pub mod bar {
+        pub trait SomeTrait {
+            const TEST_ASSOC: usize;
+        }
+    }
+
+    pub mod baz {
+        use super::bar::SomeTrait;
+
+        pub struct Item;
+
+        impl SomeTrait for Item {
+            const TEST_ASSOC: usize = 3;
+        }
+    }
+}
+
+fn main() {
+    baz::Item::TEST_ASSOC
+}
 "#,
         );
     }
diff --git a/crates/ide_completion/src/render.rs b/crates/ide_completion/src/render.rs
index df26e7642..4bddc3957 100644
--- a/crates/ide_completion/src/render.rs
+++ b/crates/ide_completion/src/render.rs
@@ -13,7 +13,10 @@ mod builder_ext;
 use hir::{
     AsAssocItem, Documentation, HasAttrs, HirDisplay, ModuleDef, Mutability, ScopeDef, Type,
 };
-use ide_db::{helpers::SnippetCap, RootDatabase, SymbolKind};
+use ide_db::{
+    helpers::{item_name, SnippetCap},
+    RootDatabase, SymbolKind,
+};
 use syntax::TextRange;
 
 use crate::{
@@ -56,7 +59,7 @@ pub(crate) fn render_resolution_with_import<'a>(
         ScopeDef::ModuleDef(ModuleDef::Function(f)) => f.name(ctx.completion.db).to_string(),
         ScopeDef::ModuleDef(ModuleDef::Const(c)) => c.name(ctx.completion.db)?.to_string(),
         ScopeDef::ModuleDef(ModuleDef::TypeAlias(t)) => t.name(ctx.completion.db).to_string(),
-        _ => import_edit.import.display_path().segments().last()?.to_string(),
+        _ => item_name(ctx.db(), import_edit.import.item_to_display())?.to_string(),
     };
     Render::new(ctx).render_resolution(local_name, Some(import_edit), resolution).map(|mut item| {
         item.completion_kind = CompletionKind::Magic;
-- 
cgit v1.2.3


From 9482353fa8e1e88cb720a029b9bb6304819c7399 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Sun, 28 Feb 2021 09:57:54 +0200
Subject: Properly handle turbofishes in qualifiers

---
 crates/ide_completion/src/completions/flyimport.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index e33fc4b78..af49fdd26 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -669,8 +669,8 @@ fn main() {
 }
 "#,
             expect![[r#"
-                ct SPECIAL_CONST (dep::test_mod::TestTrait) DEPRECATED
                 fn weird_function() (dep::test_mod::TestTrait) -> () DEPRECATED
+                ct SPECIAL_CONST (dep::test_mod::TestTrait) DEPRECATED
             "#]],
         );
     }
-- 
cgit v1.2.3


From 89d410cef571f5fa7631b17e2fbe52a8f8f03990 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Sun, 28 Feb 2021 10:32:15 +0200
Subject: Do not propose already imported imports

---
 crates/ide_completion/src/completions/flyimport.rs | 23 +++++++---------------
 1 file changed, 7 insertions(+), 16 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index af49fdd26..d6adf70b1 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -48,12 +48,11 @@
 //! Note that having this flag set to `true` does not guarantee that the feature is enabled: your client needs to have the corredponding
 //! capability enabled.
 
-use hir::{AsAssocItem, ModPath, ScopeDef};
+use hir::{AsAssocItem, ItemInNs, ModPath, ScopeDef};
 use ide_db::helpers::{
     import_assets::{ImportAssets, ImportCandidate},
     insert_use::ImportScope,
 };
-use rustc_hash::FxHashSet;
 use syntax::{AstNode, SyntaxNode, T};
 
 use crate::{
@@ -92,19 +91,17 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
         &ctx.sema,
     )?;
 
-    let scope_definitions = scope_definitions(ctx);
     let mut all_mod_paths = import_assets
         .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
         .into_iter()
         .map(|import| {
             let proposed_def = match import.item_to_display() {
-                hir::ItemInNs::Types(id) => ScopeDef::ModuleDef(id.into()),
-                hir::ItemInNs::Values(id) => ScopeDef::ModuleDef(id.into()),
-                hir::ItemInNs::Macros(id) => ScopeDef::MacroDef(id.into()),
+                ItemInNs::Types(id) => ScopeDef::ModuleDef(id.into()),
+                ItemInNs::Values(id) => ScopeDef::ModuleDef(id.into()),
+                ItemInNs::Macros(id) => ScopeDef::MacroDef(id.into()),
             };
             (import, proposed_def)
         })
-        .filter(|(_, proposed_def)| !scope_definitions.contains(proposed_def))
         .collect::<Vec<_>>();
     all_mod_paths.sort_by_cached_key(|(import, _)| {
         compute_fuzzy_completion_order_key(import.display_path(), &user_input_lowercased)
@@ -125,14 +122,6 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
     Some(())
 }
 
-fn scope_definitions(ctx: &CompletionContext) -> FxHashSet<ScopeDef> {
-    let mut scope_definitions = FxHashSet::default();
-    ctx.scope.process_all_names(&mut |_, scope_def| {
-        scope_definitions.insert(scope_def);
-    });
-    scope_definitions
-}
-
 pub(crate) fn position_for_import<'a>(
     ctx: &'a CompletionContext,
     import_candidate: Option<&ImportCandidate>,
@@ -150,13 +139,14 @@ pub(crate) fn position_for_import<'a>(
     })
 }
 
-fn import_assets(ctx: &CompletionContext, fuzzy_name: String) -> Option<ImportAssets> {
+fn import_assets<'a>(ctx: &'a CompletionContext, fuzzy_name: String) -> Option<ImportAssets<'a>> {
     let current_module = ctx.scope.module()?;
     if let Some(dot_receiver) = &ctx.dot_receiver {
         ImportAssets::for_fuzzy_method_call(
             current_module,
             ctx.sema.type_of_expr(dot_receiver)?,
             fuzzy_name,
+            ctx.scope.clone(),
         )
     } else {
         let fuzzy_name_length = fuzzy_name.len();
@@ -165,6 +155,7 @@ fn import_assets(ctx: &CompletionContext, fuzzy_name: String) -> Option<ImportAs
             ctx.path_qual.clone(),
             fuzzy_name,
             &ctx.sema,
+            ctx.scope.clone(),
         )?;
 
         if matches!(assets_for_path.import_candidate(), ImportCandidate::Path(_))
-- 
cgit v1.2.3


From e74c55bb4adcad001b0f7373ebff795fc2aaeb1b Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Mon, 1 Mar 2021 00:05:22 +0200
Subject: Refactor the import location

---
 crates/ide_completion/src/completions/flyimport.rs | 65 ++--------------------
 1 file changed, 5 insertions(+), 60 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index d6adf70b1..55439d0e5 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -95,20 +95,20 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
         .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
         .into_iter()
         .map(|import| {
-            let proposed_def = match import.item_to_display() {
+            let def_to_display = match import.item_to_display() {
                 ItemInNs::Types(id) => ScopeDef::ModuleDef(id.into()),
                 ItemInNs::Values(id) => ScopeDef::ModuleDef(id.into()),
                 ItemInNs::Macros(id) => ScopeDef::MacroDef(id.into()),
             };
-            (import, proposed_def)
+            (import, def_to_display)
         })
         .collect::<Vec<_>>();
     all_mod_paths.sort_by_cached_key(|(import, _)| {
         compute_fuzzy_completion_order_key(import.display_path(), &user_input_lowercased)
     });
 
-    acc.add_all(all_mod_paths.into_iter().filter_map(|(import, definition)| {
-        let import_for_trait_assoc_item = match definition {
+    acc.add_all(all_mod_paths.into_iter().filter_map(|(import, def_to_display)| {
+        let import_for_trait_assoc_item = match def_to_display {
             ScopeDef::ModuleDef(module_def) => module_def
                 .as_assoc_item(ctx.db)
                 .and_then(|assoc| assoc.containing_trait(ctx.db))
@@ -117,7 +117,7 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
         };
         let import_edit =
             ImportEdit { import, import_scope: import_scope.clone(), import_for_trait_assoc_item };
-        render_resolution_with_import(RenderContext::new(ctx), import_edit, &definition)
+        render_resolution_with_import(RenderContext::new(ctx), import_edit, &def_to_display)
     }));
     Some(())
 }
@@ -867,61 +867,6 @@ mod foo {
 fn main() {
     bar::Item::TEST_ASSOC
 }
-"#,
-        );
-    }
-
-    #[test]
-    fn unresolved_assoc_item_container_and_trait_with_path() {
-        check_edit(
-            "TEST_ASSOC",
-            r#"
-mod foo {
-    pub mod bar {
-        pub trait SomeTrait {
-            const TEST_ASSOC: usize;
-        }
-    }
-
-    pub mod baz {
-        use super::bar::SomeTrait;
-
-        pub struct Item;
-
-        impl SomeTrait for Item {
-            const TEST_ASSOC: usize = 3;
-        }
-    }
-}
-
-fn main() {
-    baz::Item::TEST_A$0
-}
-"#,
-            r#"
-use foo::{bar::SomeTrait, baz};
-
-mod foo {
-    pub mod bar {
-        pub trait SomeTrait {
-            const TEST_ASSOC: usize;
-        }
-    }
-
-    pub mod baz {
-        use super::bar::SomeTrait;
-
-        pub struct Item;
-
-        impl SomeTrait for Item {
-            const TEST_ASSOC: usize = 3;
-        }
-    }
-}
-
-fn main() {
-    baz::Item::TEST_ASSOC
-}
 "#,
         );
     }
-- 
cgit v1.2.3


From e214c3a6bd7f74b42d38663b959fc4f0d113c90c Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Mon, 1 Mar 2021 13:55:47 +0200
Subject: Simplify

---
 crates/ide_completion/src/completions/flyimport.rs | 43 +++++++++-------------
 1 file changed, 18 insertions(+), 25 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index 55439d0e5..c6b83da3d 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -48,7 +48,7 @@
 //! Note that having this flag set to `true` does not guarantee that the feature is enabled: your client needs to have the corredponding
 //! capability enabled.
 
-use hir::{AsAssocItem, ItemInNs, ModPath, ScopeDef};
+use hir::{AsAssocItem, ModPath, ModuleDef, ScopeDef};
 use ide_db::helpers::{
     import_assets::{ImportAssets, ImportCandidate},
     insert_use::ImportScope,
@@ -91,33 +91,26 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
         &ctx.sema,
     )?;
 
-    let mut all_mod_paths = import_assets
-        .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
-        .into_iter()
-        .map(|import| {
-            let def_to_display = match import.item_to_display() {
-                ItemInNs::Types(id) => ScopeDef::ModuleDef(id.into()),
-                ItemInNs::Values(id) => ScopeDef::ModuleDef(id.into()),
-                ItemInNs::Macros(id) => ScopeDef::MacroDef(id.into()),
-            };
-            (import, def_to_display)
-        })
-        .collect::<Vec<_>>();
-    all_mod_paths.sort_by_cached_key(|(import, _)| {
+    let mut all_imports =
+        import_assets.search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind);
+    all_imports.sort_by_cached_key(|import| {
         compute_fuzzy_completion_order_key(import.display_path(), &user_input_lowercased)
     });
 
-    acc.add_all(all_mod_paths.into_iter().filter_map(|(import, def_to_display)| {
-        let import_for_trait_assoc_item = match def_to_display {
-            ScopeDef::ModuleDef(module_def) => module_def
-                .as_assoc_item(ctx.db)
-                .and_then(|assoc| assoc.containing_trait(ctx.db))
-                .is_some(),
-            _ => false,
-        };
-        let import_edit =
-            ImportEdit { import, import_scope: import_scope.clone(), import_for_trait_assoc_item };
-        render_resolution_with_import(RenderContext::new(ctx), import_edit, &def_to_display)
+    acc.add_all(all_imports.into_iter().filter_map(|import| {
+        let import_for_trait_assoc_item = import
+            .item_to_display()
+            .as_module_def_id()
+            .and_then(|module_def_id| {
+                ModuleDef::from(module_def_id).as_assoc_item(ctx.db)?.containing_trait(ctx.db)
+            })
+            .is_some();
+        let def_to_display = ScopeDef::from(import.item_to_display());
+        render_resolution_with_import(
+            RenderContext::new(ctx),
+            ImportEdit { import, import_scope: import_scope.clone(), import_for_trait_assoc_item },
+            &def_to_display,
+        )
     }));
     Some(())
 }
-- 
cgit v1.2.3


From 821e8369d994ebca39ccbf9b449c604d0c910efc Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Mon, 1 Mar 2021 14:14:24 +0200
Subject: Update the docs

---
 crates/ide_completion/src/completions/flyimport.rs | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index c6b83da3d..1ef6f8afb 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -21,6 +21,45 @@
 //! ```
 //!
 //! Also completes associated items, that require trait imports.
+//! If any unresolved and/or partially-qualified path predeces the input, it will be taken into account: only the items with import string
+//! containing this whole path will be considered and the corresponding path import will be added:
+//!
+//! ```
+//! mod foo {
+//!     pub mod bar {
+//!         pub struct Item;
+//!
+//!         impl Item {
+//!             pub const TEST_ASSOC: usize = 3;
+//!         }
+//!     }
+//! }
+//!
+//! fn main() {
+//!     bar::Item::TEST_A$0
+//! }
+//! ```
+//! ->
+//! ```
+//! use foo::bar;
+//!
+//! mod foo {
+//!     pub mod bar {
+//!         pub struct Item;
+//!
+//!         impl Item {
+//!             pub const TEST_ASSOC: usize = 3;
+//!         }
+//!     }
+//! }
+//!
+//! fn main() {
+//!     bar::Item::TEST_ASSOC
+//! }
+//! ```
+//!
+//! NOTE: currently, if an assoc item comes from a trait that's not currently imported and it also has an unresolved and/or partially-qualified path,
+//! no imports will be proposed.
 //!
 //! .Fuzzy search details
 //!
-- 
cgit v1.2.3


From 33c83e72b9b48177a6171fd06a26676679963a4d Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Wed, 3 Mar 2021 01:26:53 +0200
Subject: Work towards better import labels

---
 crates/ide_completion/src/completions/flyimport.rs | 101 +++++++++++----------
 crates/ide_completion/src/item.rs                  |  43 +++++----
 crates/ide_completion/src/lib.rs                   |  17 ++--
 crates/ide_completion/src/render.rs                |  14 +--
 4 files changed, 92 insertions(+), 83 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index 1ef6f8afb..c1e3f091f 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -87,11 +87,12 @@
 //! Note that having this flag set to `true` does not guarantee that the feature is enabled: your client needs to have the corredponding
 //! capability enabled.
 
-use hir::{AsAssocItem, ModPath, ModuleDef, ScopeDef};
+use hir::ModPath;
 use ide_db::helpers::{
     import_assets::{ImportAssets, ImportCandidate},
     insert_use::ImportScope,
 };
+use itertools::Itertools;
 use syntax::{AstNode, SyntaxNode, T};
 
 use crate::{
@@ -130,27 +131,23 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
         &ctx.sema,
     )?;
 
-    let mut all_imports =
-        import_assets.search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind);
-    all_imports.sort_by_cached_key(|import| {
-        compute_fuzzy_completion_order_key(import.display_path(), &user_input_lowercased)
-    });
-
-    acc.add_all(all_imports.into_iter().filter_map(|import| {
-        let import_for_trait_assoc_item = import
-            .item_to_display()
-            .as_module_def_id()
-            .and_then(|module_def_id| {
-                ModuleDef::from(module_def_id).as_assoc_item(ctx.db)?.containing_trait(ctx.db)
+    acc.add_all(
+        import_assets
+            .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
+            .into_iter()
+            .sorted_by_key(|located_import| {
+                compute_fuzzy_completion_order_key(
+                    &located_import.import_path,
+                    &user_input_lowercased,
+                )
             })
-            .is_some();
-        let def_to_display = ScopeDef::from(import.item_to_display());
-        render_resolution_with_import(
-            RenderContext::new(ctx),
-            ImportEdit { import, import_scope: import_scope.clone(), import_for_trait_assoc_item },
-            &def_to_display,
-        )
-    }));
+            .filter_map(|import| {
+                render_resolution_with_import(
+                    RenderContext::new(ctx),
+                    ImportEdit { import, import_scope: import_scope.clone() },
+                )
+            }),
+    );
     Some(())
 }
 
@@ -190,6 +187,7 @@ fn import_assets<'a>(ctx: &'a CompletionContext, fuzzy_name: String) -> Option<I
             ctx.scope.clone(),
         )?;
 
+        // TODO kb bad: with the path prefix, the "min 3 symbols" limit applies. Fix in a separate PR on the symbol_index level
         if matches!(assets_for_path.import_candidate(), ImportCandidate::Path(_))
             && fuzzy_name_length < 2
         {
@@ -796,9 +794,7 @@ fn main() {
 
     #[test]
     fn unresolved_qualifier() {
-        check_edit(
-            "Item",
-            r#"
+        let fixture = r#"
 mod foo {
     pub mod bar {
         pub mod baz {
@@ -809,31 +805,34 @@ mod foo {
 
 fn main() {
     bar::baz::Ite$0
-}
-"#,
+}"#;
+
+        check(fixture, expect![["st Item (foo::bar::baz::Item)"]]);
+
+        check_edit(
+            "Item",
+            fixture,
             r#"
-use foo::bar;
+        use foo::bar;
 
-mod foo {
-    pub mod bar {
-        pub mod baz {
-            pub struct Item;
+        mod foo {
+            pub mod bar {
+                pub mod baz {
+                    pub struct Item;
+                }
+            }
         }
-    }
-}
 
-fn main() {
-    bar::baz::Item
-}
-"#,
+        fn main() {
+            bar::baz::Item
+        }
+        "#,
         );
     }
 
     #[test]
     fn unresolved_assoc_item_container() {
-        check_edit(
-            "TEST_ASSOC",
-            r#"
+        let fixture = r#"
 mod foo {
     pub struct Item;
 
@@ -844,8 +843,13 @@ mod foo {
 
 fn main() {
     Item::TEST_A$0
-}
-"#,
+}"#;
+
+        check(fixture, expect![["ct TEST_ASSOC (foo::bar::baz::Item)"]]);
+
+        check_edit(
+            "TEST_ASSOC",
+            fixture,
             r#"
 use foo::Item;
 
@@ -866,9 +870,7 @@ fn main() {
 
     #[test]
     fn unresolved_assoc_item_container_with_path() {
-        check_edit(
-            "TEST_ASSOC",
-            r#"
+        let fixture = r#"
 mod foo {
     pub mod bar {
         pub struct Item;
@@ -881,8 +883,13 @@ mod foo {
 
 fn main() {
     bar::Item::TEST_A$0
-}
-"#,
+}"#;
+
+        check(fixture, expect![["ct TEST_ASSOC (foo::bar::baz::Item)"]]);
+
+        check_edit(
+            "TEST_ASSOC",
+            fixture,
             r#"
 use foo::bar;
 
diff --git a/crates/ide_completion/src/item.rs b/crates/ide_completion/src/item.rs
index 0390fe226..d01620500 100644
--- a/crates/ide_completion/src/item.rs
+++ b/crates/ide_completion/src/item.rs
@@ -275,7 +275,6 @@ impl CompletionItem {
 pub struct ImportEdit {
     pub import: LocatedImport,
     pub import_scope: ImportScope,
-    pub import_for_trait_assoc_item: bool,
 }
 
 impl ImportEdit {
@@ -286,7 +285,7 @@ impl ImportEdit {
 
         let rewriter = insert_use::insert_use(
             &self.import_scope,
-            mod_path_to_ast(self.import.import_path()),
+            mod_path_to_ast(&self.import.import_path),
             cfg,
         );
         let old_ast = rewriter.rewrite_root()?;
@@ -303,6 +302,7 @@ impl ImportEdit {
 pub(crate) struct Builder {
     source_range: TextRange,
     completion_kind: CompletionKind,
+    // TODO kb also add a db here, to resolve the completion label?
     import_to_add: Option<ImportEdit>,
     label: String,
     insert_text: Option<String>,
@@ -322,19 +322,22 @@ impl Builder {
     pub(crate) fn build(self) -> CompletionItem {
         let _p = profile::span("item::Builder::build");
 
-        let mut label = self.label;
-        let mut lookup = self.lookup;
-        let mut insert_text = self.insert_text;
-
-        if let Some(import_to_add) = self.import_to_add.as_ref() {
-            lookup = lookup.or_else(|| Some(label.clone()));
-            insert_text = insert_text.or_else(|| Some(label.clone()));
-            let display_path = import_to_add.import.display_path();
-            if import_to_add.import_for_trait_assoc_item {
-                label = format!("{} ({})", label, display_path);
-            } else {
-                label = display_path.to_string();
-            }
+        let label = self.label;
+        let lookup = self.lookup;
+        let insert_text = self.insert_text;
+
+        if let Some(_import_to_add) = self.import_to_add.as_ref() {
+            todo!("todo kb")
+            // let import = &import_to_add.import;
+            // let item_to_import = import.item_to_import();
+            // lookup = lookup.or_else(|| Some(label.clone()));
+            // insert_text = insert_text.or_else(|| Some(label.clone()));
+            // let display_path = import_to_add.import.display_path();
+            // if import_to_add.import {
+            //     label = format!("{} ({})", label, display_path);
+            // } else {
+            //     label = display_path.to_string();
+            // }
         }
 
         let text_edit = match self.text_edit {
@@ -438,8 +441,8 @@ impl Builder {
     }
 }
 
-impl<'a> Into<CompletionItem> for Builder {
-    fn into(self) -> CompletionItem {
-        self.build()
-    }
-}
+// impl<'a> Into<CompletionItem> for Builder {
+//     fn into(self) -> CompletionItem {
+//         self.build()
+//     }
+// }
diff --git a/crates/ide_completion/src/lib.rs b/crates/ide_completion/src/lib.rs
index ca2e5e706..d19368de0 100644
--- a/crates/ide_completion/src/lib.rs
+++ b/crates/ide_completion/src/lib.rs
@@ -15,7 +15,7 @@ use completions::flyimport::position_for_import;
 use ide_db::{
     base_db::FilePosition,
     helpers::{import_assets::LocatedImport, insert_use::ImportScope},
-    imports_locator, RootDatabase,
+    items_locator, RootDatabase,
 };
 use text_edit::TextEdit;
 
@@ -141,7 +141,6 @@ pub fn resolve_completion_edits(
     position: FilePosition,
     full_import_path: &str,
     imported_name: String,
-    import_for_trait_assoc_item: bool,
 ) -> Option<Vec<TextEdit>> {
     let ctx = CompletionContext::new(db, position, config)?;
     let position_for_import = position_for_import(&ctx, None)?;
@@ -151,19 +150,17 @@ pub fn resolve_completion_edits(
     let current_crate = current_module.krate();
 
     let (import_path, item_to_import) =
-        imports_locator::find_exact_imports(&ctx.sema, current_crate, imported_name)
+        items_locator::with_for_exact_name(&ctx.sema, current_crate, imported_name)
+            .into_iter()
             .filter_map(|candidate| {
-                let item: hir::ItemInNs = candidate.either(Into::into, Into::into);
                 current_module
-                    .find_use_path_prefixed(db, item, config.insert_use.prefix_kind)
-                    .zip(Some(item))
+                    .find_use_path_prefixed(db, candidate, config.insert_use.prefix_kind)
+                    .zip(Some(candidate))
             })
             .find(|(mod_path, _)| mod_path.to_string() == full_import_path)?;
-    let import = LocatedImport::new(import_path, item_to_import, None);
+    let import = LocatedImport::new(import_path, item_to_import, item_to_import);
 
-    ImportEdit { import_path, import_scope, import_for_trait_assoc_item }
-        .to_text_edit(config.insert_use)
-        .map(|edit| vec![edit])
+    ImportEdit { import, import_scope }.to_text_edit(config.insert_use).map(|edit| vec![edit])
 }
 
 #[cfg(test)]
diff --git a/crates/ide_completion/src/render.rs b/crates/ide_completion/src/render.rs
index 4bddc3957..fae5685e2 100644
--- a/crates/ide_completion/src/render.rs
+++ b/crates/ide_completion/src/render.rs
@@ -53,18 +53,20 @@ pub(crate) fn render_resolution<'a>(
 pub(crate) fn render_resolution_with_import<'a>(
     ctx: RenderContext<'a>,
     import_edit: ImportEdit,
-    resolution: &ScopeDef,
 ) -> Option<CompletionItem> {
+    let resolution = ScopeDef::from(import_edit.import.original_item);
     let local_name = match resolution {
         ScopeDef::ModuleDef(ModuleDef::Function(f)) => f.name(ctx.completion.db).to_string(),
         ScopeDef::ModuleDef(ModuleDef::Const(c)) => c.name(ctx.completion.db)?.to_string(),
         ScopeDef::ModuleDef(ModuleDef::TypeAlias(t)) => t.name(ctx.completion.db).to_string(),
-        _ => item_name(ctx.db(), import_edit.import.item_to_display())?.to_string(),
+        _ => item_name(ctx.db(), import_edit.import.original_item)?.to_string(),
     };
-    Render::new(ctx).render_resolution(local_name, Some(import_edit), resolution).map(|mut item| {
-        item.completion_kind = CompletionKind::Magic;
-        item
-    })
+    Render::new(ctx).render_resolution(local_name, Some(import_edit), &resolution).map(
+        |mut item| {
+            item.completion_kind = CompletionKind::Magic;
+            item
+        },
+    )
 }
 
 /// Interface for data and methods required for items rendering.
-- 
cgit v1.2.3


From 24a5d3b19dfa3e076df8b7413d0cc4a547aeb7d7 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Wed, 3 Mar 2021 23:55:21 +0200
Subject: Fix the completion labels and tests

---
 crates/ide_completion/src/completions/flyimport.rs | 34 ++++++++++++------
 crates/ide_completion/src/item.rs                  | 41 +++++++++++-----------
 crates/ide_completion/src/lib.rs                   |  7 ++--
 3 files changed, 48 insertions(+), 34 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index c1e3f091f..c5b3c9e27 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -144,7 +144,7 @@ pub(crate) fn import_on_the_fly(acc: &mut Completions, ctx: &CompletionContext)
             .filter_map(|import| {
                 render_resolution_with_import(
                     RenderContext::new(ctx),
-                    ImportEdit { import, import_scope: import_scope.clone() },
+                    ImportEdit { import, scope: import_scope.clone() },
                 )
             }),
     );
@@ -690,8 +690,8 @@ fn main() {
 }
 "#,
             expect![[r#"
-                fn weird_function() (dep::test_mod::TestTrait) -> () DEPRECATED
                 ct SPECIAL_CONST (dep::test_mod::TestTrait) DEPRECATED
+                fn weird_function() (dep::test_mod::TestTrait) -> () DEPRECATED
             "#]],
         );
     }
@@ -807,7 +807,12 @@ fn main() {
     bar::baz::Ite$0
 }"#;
 
-        check(fixture, expect![["st Item (foo::bar::baz::Item)"]]);
+        check(
+            fixture,
+            expect![[r#"
+        st foo::bar::baz::Item
+        "#]],
+        );
 
         check_edit(
             "Item",
@@ -825,8 +830,7 @@ fn main() {
 
         fn main() {
             bar::baz::Item
-        }
-        "#,
+        }"#,
         );
     }
 
@@ -845,7 +849,12 @@ fn main() {
     Item::TEST_A$0
 }"#;
 
-        check(fixture, expect![["ct TEST_ASSOC (foo::bar::baz::Item)"]]);
+        check(
+            fixture,
+            expect![[r#"
+        ct TEST_ASSOC (foo::Item)
+        "#]],
+        );
 
         check_edit(
             "TEST_ASSOC",
@@ -863,8 +872,7 @@ mod foo {
 
 fn main() {
     Item::TEST_ASSOC
-}
-"#,
+}"#,
         );
     }
 
@@ -885,7 +893,12 @@ fn main() {
     bar::Item::TEST_A$0
 }"#;
 
-        check(fixture, expect![["ct TEST_ASSOC (foo::bar::baz::Item)"]]);
+        check(
+            fixture,
+            expect![[r#"
+        ct TEST_ASSOC (foo::bar::Item)
+    "#]],
+        );
 
         check_edit(
             "TEST_ASSOC",
@@ -905,8 +918,7 @@ mod foo {
 
 fn main() {
     bar::Item::TEST_ASSOC
-}
-"#,
+}"#,
         );
     }
 }
diff --git a/crates/ide_completion/src/item.rs b/crates/ide_completion/src/item.rs
index d01620500..44e4a6dfd 100644
--- a/crates/ide_completion/src/item.rs
+++ b/crates/ide_completion/src/item.rs
@@ -11,7 +11,7 @@ use ide_db::{
     },
     SymbolKind,
 };
-use stdx::{impl_from, never};
+use stdx::{format_to, impl_from, never};
 use syntax::{algo, TextRange};
 use text_edit::TextEdit;
 
@@ -274,7 +274,7 @@ impl CompletionItem {
 #[derive(Debug, Clone)]
 pub struct ImportEdit {
     pub import: LocatedImport,
-    pub import_scope: ImportScope,
+    pub scope: ImportScope,
 }
 
 impl ImportEdit {
@@ -284,7 +284,7 @@ impl ImportEdit {
         let _p = profile::span("ImportEdit::to_text_edit");
 
         let rewriter = insert_use::insert_use(
-            &self.import_scope,
+            &self.scope,
             mod_path_to_ast(&self.import.import_path),
             cfg,
         );
@@ -302,7 +302,6 @@ impl ImportEdit {
 pub(crate) struct Builder {
     source_range: TextRange,
     completion_kind: CompletionKind,
-    // TODO kb also add a db here, to resolve the completion label?
     import_to_add: Option<ImportEdit>,
     label: String,
     insert_text: Option<String>,
@@ -322,22 +321,24 @@ impl Builder {
     pub(crate) fn build(self) -> CompletionItem {
         let _p = profile::span("item::Builder::build");
 
-        let label = self.label;
-        let lookup = self.lookup;
-        let insert_text = self.insert_text;
-
-        if let Some(_import_to_add) = self.import_to_add.as_ref() {
-            todo!("todo kb")
-            // let import = &import_to_add.import;
-            // let item_to_import = import.item_to_import();
-            // lookup = lookup.or_else(|| Some(label.clone()));
-            // insert_text = insert_text.or_else(|| Some(label.clone()));
-            // let display_path = import_to_add.import.display_path();
-            // if import_to_add.import {
-            //     label = format!("{} ({})", label, display_path);
-            // } else {
-            //     label = display_path.to_string();
-            // }
+        let mut label = self.label;
+        let mut lookup = self.lookup;
+        let mut insert_text = self.insert_text;
+
+        if let Some(original_path) = self
+            .import_to_add
+            .as_ref()
+            .and_then(|import_edit| import_edit.import.original_path.as_ref())
+        {
+            lookup = lookup.or_else(|| Some(label.clone()));
+            insert_text = insert_text.or_else(|| Some(label.clone()));
+
+            let original_path_label = original_path.to_string();
+            if original_path_label.ends_with(&label) {
+                label = original_path_label;
+            } else {
+                format_to!(label, " ({})", original_path)
+            }
         }
 
         let text_edit = match self.text_edit {
diff --git a/crates/ide_completion/src/lib.rs b/crates/ide_completion/src/lib.rs
index d19368de0..5470914fb 100644
--- a/crates/ide_completion/src/lib.rs
+++ b/crates/ide_completion/src/lib.rs
@@ -144,7 +144,7 @@ pub fn resolve_completion_edits(
 ) -> Option<Vec<TextEdit>> {
     let ctx = CompletionContext::new(db, position, config)?;
     let position_for_import = position_for_import(&ctx, None)?;
-    let import_scope = ImportScope::find_insert_use_container(position_for_import, &ctx.sema)?;
+    let scope = ImportScope::find_insert_use_container(position_for_import, &ctx.sema)?;
 
     let current_module = ctx.sema.scope(position_for_import).module()?;
     let current_crate = current_module.krate();
@@ -158,9 +158,10 @@ pub fn resolve_completion_edits(
                     .zip(Some(candidate))
             })
             .find(|(mod_path, _)| mod_path.to_string() == full_import_path)?;
-    let import = LocatedImport::new(import_path, item_to_import, item_to_import);
+    let import =
+        LocatedImport::new(import_path.clone(), item_to_import, item_to_import, Some(import_path));
 
-    ImportEdit { import, import_scope }.to_text_edit(config.insert_use).map(|edit| vec![edit])
+    ImportEdit { import, scope }.to_text_edit(config.insert_use).map(|edit| vec![edit])
 }
 
 #[cfg(test)]
-- 
cgit v1.2.3


From 6ca6f101c1b3a795ff6578bae6e01cb4b818e14c Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Thu, 4 Mar 2021 00:10:20 +0200
Subject: Test for fuzzy unresolved path maatch

---
 crates/ide_completion/src/completions/flyimport.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index c5b3c9e27..efb91fe0e 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -921,4 +921,26 @@ fn main() {
 }"#,
         );
     }
+
+    #[test]
+    fn fuzzy_unresolved_path() {
+        check(
+            r#"
+mod foo {
+    pub mod bar {
+        pub struct Item;
+
+        impl Item {
+            pub const TEST_ASSOC: usize = 3;
+        }
+    }
+}
+
+fn main() {
+    let zz = "sdsd";
+    bar::Ass$0
+}"#,
+            expect![[]],
+        )
+    }
 }
-- 
cgit v1.2.3


From 84c575a21201cdbeb391ff2cfae2fbbccaa76f8a Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Fri, 5 Mar 2021 00:11:07 +0200
Subject: Restrict fuzzy qualifiers for now

---
 crates/ide_completion/src/completions/flyimport.rs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index efb91fe0e..8a11cba41 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -21,8 +21,9 @@
 //! ```
 //!
 //! Also completes associated items, that require trait imports.
-//! If any unresolved and/or partially-qualified path predeces the input, it will be taken into account: only the items with import string
-//! containing this whole path will be considered and the corresponding path import will be added:
+//! If any unresolved and/or partially-qualified path predeces the input, it will be taken into account.
+//! Currently, only the imports with their import path ending with the whole qialifier will be proposed
+//! (no fuzzy matching for qualifier).
 //!
 //! ```
 //! mod foo {
@@ -187,7 +188,6 @@ fn import_assets<'a>(ctx: &'a CompletionContext, fuzzy_name: String) -> Option<I
             ctx.scope.clone(),
         )?;
 
-        // TODO kb bad: with the path prefix, the "min 3 symbols" limit applies. Fix in a separate PR on the symbol_index level
         if matches!(assets_for_path.import_candidate(), ImportCandidate::Path(_))
             && fuzzy_name_length < 2
         {
@@ -937,7 +937,6 @@ mod foo {
 }
 
 fn main() {
-    let zz = "sdsd";
     bar::Ass$0
 }"#,
             expect![[]],
-- 
cgit v1.2.3


From c56b59d37781f6eb7caee76de2c8a1bbc9d169dc Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Fri, 5 Mar 2021 00:29:39 +0200
Subject: Cleanup

---
 crates/ide_completion/src/item.rs | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/item.rs b/crates/ide_completion/src/item.rs
index 44e4a6dfd..06f16a2c7 100644
--- a/crates/ide_completion/src/item.rs
+++ b/crates/ide_completion/src/item.rs
@@ -441,9 +441,3 @@ impl Builder {
         self
     }
 }
-
-// impl<'a> Into<CompletionItem> for Builder {
-//     fn into(self) -> CompletionItem {
-//         self.build()
-//     }
-// }
-- 
cgit v1.2.3


From db61d4ea13113cd6c4e0661075ea9b2f739be862 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Sun, 7 Mar 2021 11:58:43 +0200
Subject: Rebase leftovers

---
 crates/ide_completion/src/item.rs | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/item.rs b/crates/ide_completion/src/item.rs
index 06f16a2c7..9b039e3e5 100644
--- a/crates/ide_completion/src/item.rs
+++ b/crates/ide_completion/src/item.rs
@@ -283,11 +283,8 @@ impl ImportEdit {
     pub fn to_text_edit(&self, cfg: InsertUseConfig) -> Option<TextEdit> {
         let _p = profile::span("ImportEdit::to_text_edit");
 
-        let rewriter = insert_use::insert_use(
-            &self.scope,
-            mod_path_to_ast(&self.import.import_path),
-            cfg,
-        );
+        let rewriter =
+            insert_use::insert_use(&self.scope, mod_path_to_ast(&self.import.import_path), cfg);
         let old_ast = rewriter.rewrite_root()?;
         let mut import_insert = TextEdit::builder();
         algo::diff(&old_ast, &rewriter.rewrite(&old_ast)).into_text_edit(&mut import_insert);
-- 
cgit v1.2.3


From dccbb38d2e28bfeb53f31c13de3b83e72f1a476c Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Mon, 8 Mar 2021 00:25:45 +0200
Subject: Less lifetines: derive SemanticsScope in place

---
 crates/ide_completion/src/completions/flyimport.rs | 11 ++++++++---
 crates/ide_completion/src/lib.rs                   |  2 +-
 2 files changed, 9 insertions(+), 4 deletions(-)

(limited to 'crates/ide_completion/src')

diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index 8a11cba41..391a11c91 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -169,23 +169,28 @@ pub(crate) fn position_for_import<'a>(
     })
 }
 
-fn import_assets<'a>(ctx: &'a CompletionContext, fuzzy_name: String) -> Option<ImportAssets<'a>> {
+fn import_assets(ctx: &CompletionContext, fuzzy_name: String) -> Option<ImportAssets> {
     let current_module = ctx.scope.module()?;
     if let Some(dot_receiver) = &ctx.dot_receiver {
         ImportAssets::for_fuzzy_method_call(
             current_module,
             ctx.sema.type_of_expr(dot_receiver)?,
             fuzzy_name,
-            ctx.scope.clone(),
+            dot_receiver.syntax().clone(),
         )
     } else {
         let fuzzy_name_length = fuzzy_name.len();
+        let approximate_node = match current_module.definition_source(ctx.db).value {
+            hir::ModuleSource::SourceFile(s) => s.syntax().clone(),
+            hir::ModuleSource::Module(m) => m.syntax().clone(),
+            hir::ModuleSource::BlockExpr(b) => b.syntax().clone(),
+        };
         let assets_for_path = ImportAssets::for_fuzzy_path(
             current_module,
             ctx.path_qual.clone(),
             fuzzy_name,
             &ctx.sema,
-            ctx.scope.clone(),
+            approximate_node,
         )?;
 
         if matches!(assets_for_path.import_candidate(), ImportCandidate::Path(_))
diff --git a/crates/ide_completion/src/lib.rs b/crates/ide_completion/src/lib.rs
index 5470914fb..a0c8c374d 100644
--- a/crates/ide_completion/src/lib.rs
+++ b/crates/ide_completion/src/lib.rs
@@ -150,7 +150,7 @@ pub fn resolve_completion_edits(
     let current_crate = current_module.krate();
 
     let (import_path, item_to_import) =
-        items_locator::with_for_exact_name(&ctx.sema, current_crate, imported_name)
+        items_locator::with_exact_name(&ctx.sema, current_crate, imported_name)
             .into_iter()
             .filter_map(|candidate| {
                 current_module
-- 
cgit v1.2.3