From 379f88537382b838796e96c3e42846c60b945cf4 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Fri, 7 Jun 2024 14:36:06 +0200
Subject: [PATCH] fix: Fix renaming imports of foreign items touching foreign
 sources

---
 crates/ide/src/rename.rs | 41 +++++++++++++++++++++++++++++-----------
 1 file changed, 30 insertions(+), 11 deletions(-)

diff --git a/crates/ide/src/rename.rs b/crates/ide/src/rename.rs
index 8c2ae327c7..a13758a9f4 100644
--- a/crates/ide/src/rename.rs
+++ b/crates/ide/src/rename.rs
@@ -119,9 +119,9 @@ pub(crate) fn rename(
                 };
 
                 let mut source_change = SourceChange::default();
-                source_change.extend(usages.iter().map(|(&file_id, refs)| {
-                    (file_id, source_edit_from_references(refs, def, new_name))
-                }));
+                source_change.extend(usages.references.get_mut(&position.file_id).iter().map(
+                    |refs| (position.file_id, source_edit_from_references(refs, def, new_name)),
+                ));
 
                 Ok(source_change)
             })
@@ -444,12 +444,8 @@ mod tests {
 
     use super::{RangeInfo, RenameError};
 
-    fn check(new_name: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
-        check_with_rename_config(new_name, ra_fixture_before, ra_fixture_after);
-    }
-
     #[track_caller]
-    fn check_with_rename_config(new_name: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
+    fn check(new_name: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
         let ra_fixture_after = &trim_indent(ra_fixture_after);
         let (analysis, position) = fixture::position(ra_fixture_before);
         if !ra_fixture_after.starts_with("error: ") {
@@ -466,7 +462,7 @@ mod tests {
                 let (&file_id, edit) = match source_change.source_file_edits.len() {
                     0 => return,
                     1 => source_change.source_file_edits.iter().next().unwrap(),
-                    _ => (&position.file_id, &source_change.source_file_edits[&position.file_id]),
+                    _ => panic!(),
                 };
                 for indel in edit.0.iter() {
                     text_edit_builder.replace(indel.delete, indel.insert.clone());
@@ -2689,7 +2685,7 @@ use qux as frob;
 
     #[test]
     fn disallow_renaming_for_non_local_definition() {
-        check_with_rename_config(
+        check(
             "Baz",
             r#"
 //- /lib.rs crate:lib new_source_root:library
@@ -2704,7 +2700,7 @@ fn main() { let _: S$0; }
 
     #[test]
     fn disallow_renaming_for_builtin_macros() {
-        check_with_rename_config(
+        check(
             "Baz",
             r#"
 //- minicore: derive, hash
@@ -2762,14 +2758,19 @@ fn test() {
         check(
             "Baz",
             r#"
+//- /main.rs crate:main
+mod module;
 mod foo { pub struct Foo; }
 mod bar { use super::Foo; }
 
 use foo::Foo$0;
 
 fn main() { let _: Foo; }
+//- /module.rs
+use crate::foo::Foo;
 "#,
             r#"
+mod module;
 mod foo { pub struct Foo; }
 mod bar { use super::Baz; }
 
@@ -2779,4 +2780,22 @@ fn main() { let _: Baz; }
 "#,
         )
     }
+
+    #[test]
+    fn rename_path_inside_use_tree_foreign() {
+        check(
+            "Baz",
+            r#"
+//- /lib.rs crate:lib new_source_root:library
+pub struct S;
+//- /main.rs crate:main deps:lib new_source_root:local
+use lib::S$0;
+fn main() { let _: S; }
+"#,
+            r#"
+use lib::S as Baz;
+fn main() { let _: Baz; }
+"#,
+        );
+    }
 }