From 8f36f768e1ca2654da4c22983fe3c8bc3ad059a9 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sun, 29 Dec 2019 14:46:24 +0100
Subject: Don't add non-impl/trait containers to scope

---
 crates/ra_hir_ty/src/tests.rs            | 80 +++++++++++++++++++++++---------
 crates/ra_hir_ty/src/tests/regression.rs | 36 +++++++++++++-
 crates/ra_hir_ty/src/tests/simple.rs     |  3 ++
 3 files changed, 95 insertions(+), 24 deletions(-)

(limited to 'crates/ra_hir_ty')

diff --git a/crates/ra_hir_ty/src/tests.rs b/crates/ra_hir_ty/src/tests.rs
index d447b4571..d1f10e675 100644
--- a/crates/ra_hir_ty/src/tests.rs
+++ b/crates/ra_hir_ty/src/tests.rs
@@ -11,8 +11,8 @@ use std::fmt::Write;
 use std::sync::Arc;
 
 use hir_def::{
-    body::BodySourceMap, child_by_source::ChildBySource, db::DefDatabase, keys,
-    nameres::CrateDefMap, AssocItemId, DefWithBodyId, LocalModuleId, Lookup, ModuleDefId,
+    body::BodySourceMap, child_by_source::ChildBySource, db::DefDatabase, item_scope::ItemScope,
+    keys, nameres::CrateDefMap, AssocItemId, DefWithBodyId, LocalModuleId, Lookup, ModuleDefId,
 };
 use hir_expand::InFile;
 use insta::assert_snapshot;
@@ -163,35 +163,69 @@ fn visit_module(
     module_id: LocalModuleId,
     cb: &mut dyn FnMut(DefWithBodyId),
 ) {
-    for decl in crate_def_map[module_id].scope.declarations() {
-        match decl {
-            ModuleDefId::FunctionId(it) => cb(it.into()),
-            ModuleDefId::ConstId(it) => cb(it.into()),
-            ModuleDefId::StaticId(it) => cb(it.into()),
-            ModuleDefId::TraitId(it) => {
-                let trait_data = db.trait_data(it);
-                for &(_, item) in trait_data.items.iter() {
-                    match item {
-                        AssocItemId::FunctionId(it) => cb(it.into()),
-                        AssocItemId::ConstId(it) => cb(it.into()),
-                        AssocItemId::TypeAliasId(_) => (),
-                    }
-                }
-            }
-            ModuleDefId::ModuleId(it) => visit_module(db, crate_def_map, it.local_id, cb),
-            _ => (),
-        }
-    }
+    visit_scope(db, crate_def_map, &crate_def_map[module_id].scope, cb);
     for impl_id in crate_def_map[module_id].scope.impls() {
         let impl_data = db.impl_data(impl_id);
         for &item in impl_data.items.iter() {
             match item {
-                AssocItemId::FunctionId(it) => cb(it.into()),
-                AssocItemId::ConstId(it) => cb(it.into()),
+                AssocItemId::FunctionId(it) => {
+                    let def = it.into();
+                    cb(def);
+                    let body = db.body(def);
+                    visit_scope(db, crate_def_map, &body.item_scope, cb);
+                }
+                AssocItemId::ConstId(it) => {
+                    let def = it.into();
+                    cb(def);
+                    let body = db.body(def);
+                    visit_scope(db, crate_def_map, &body.item_scope, cb);
+                }
                 AssocItemId::TypeAliasId(_) => (),
             }
         }
     }
+
+    fn visit_scope(
+        db: &TestDB,
+        crate_def_map: &CrateDefMap,
+        scope: &ItemScope,
+        cb: &mut dyn FnMut(DefWithBodyId),
+    ) {
+        for decl in scope.declarations() {
+            match decl {
+                ModuleDefId::FunctionId(it) => {
+                    let def = it.into();
+                    cb(def);
+                    let body = db.body(def);
+                    visit_scope(db, crate_def_map, &body.item_scope, cb);
+                }
+                ModuleDefId::ConstId(it) => {
+                    let def = it.into();
+                    cb(def);
+                    let body = db.body(def);
+                    visit_scope(db, crate_def_map, &body.item_scope, cb);
+                }
+                ModuleDefId::StaticId(it) => {
+                    let def = it.into();
+                    cb(def);
+                    let body = db.body(def);
+                    visit_scope(db, crate_def_map, &body.item_scope, cb);
+                }
+                ModuleDefId::TraitId(it) => {
+                    let trait_data = db.trait_data(it);
+                    for &(_, item) in trait_data.items.iter() {
+                        match item {
+                            AssocItemId::FunctionId(it) => cb(it.into()),
+                            AssocItemId::ConstId(it) => cb(it.into()),
+                            AssocItemId::TypeAliasId(_) => (),
+                        }
+                    }
+                }
+                ModuleDefId::ModuleId(it) => visit_module(db, crate_def_map, it.local_id, cb),
+                _ => (),
+            }
+        }
+    }
 }
 
 fn ellipsize(mut text: String, max_len: usize) -> String {
diff --git a/crates/ra_hir_ty/src/tests/regression.rs b/crates/ra_hir_ty/src/tests/regression.rs
index 09d684ac2..8b3aa8564 100644
--- a/crates/ra_hir_ty/src/tests/regression.rs
+++ b/crates/ra_hir_ty/src/tests/regression.rs
@@ -1,7 +1,8 @@
-use super::infer;
 use insta::assert_snapshot;
 use test_utils::covers;
 
+use super::infer;
+
 #[test]
 fn bug_484() {
     assert_snapshot!(
@@ -331,3 +332,36 @@ pub fn main_loop() {
     "###
     );
 }
+
+#[test]
+fn issue_2669() {
+    assert_snapshot!(
+        infer(
+            r#"trait A {}
+    trait Write {}
+    struct Response<T> {}
+
+    trait D {
+        fn foo();
+    }
+
+    impl<T:A> D for Response<T> {
+        fn foo() {
+            end();
+            fn end<W: Write>() {
+                let _x: T =  loop {};
+            }
+        }
+    }"#
+        ),
+        @r###"
+    [147; 262) '{     ...     }': ()
+    [161; 164) 'end': fn end<{unknown}>() -> ()
+    [161; 166) 'end()': ()
+    [199; 252) '{     ...     }': ()
+    [221; 223) '_x': !
+    [230; 237) 'loop {}': !
+    [235; 237) '{}': ()
+    "###
+    )
+}
diff --git a/crates/ra_hir_ty/src/tests/simple.rs b/crates/ra_hir_ty/src/tests/simple.rs
index 3e5e163e3..00134c99b 100644
--- a/crates/ra_hir_ty/src/tests/simple.rs
+++ b/crates/ra_hir_ty/src/tests/simple.rs
@@ -1518,6 +1518,7 @@ fn test() {
     [167; 179) 'GLOBAL_CONST': u32
     [189; 191) 'id': u32
     [194; 210) 'Foo::A..._CONST': u32
+    [126; 128) '99': u32
     "###
     );
 }
@@ -1549,6 +1550,8 @@ fn test() {
     [233; 246) 'GLOBAL_STATIC': u32
     [256; 257) 'w': u32
     [260; 277) 'GLOBAL...IC_MUT': u32
+    [118; 120) '99': u32
+    [161; 163) '99': u32
     "###
     );
 }
-- 
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