Fix editor::GoToDiagnostics cycle (#24446)

https://github.com/user-attachments/assets/45f665f0-473a-49bd-b013-b9d1bdb902bd


After activating 2nd diagnostics group, `find_map` code for next
diagnostics did not skip the previous group for the same place.

Release Notes:

- Fixed `editor::GoToDiagnostics` action stuck when multiple diagnostics
groups belong to the same place

crates/editor/src/editor.rs

@@ -10283,14 +10283,26 @@ impl Editor {
                     if entry.diagnostic.is_primary
                         && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
                         && entry.range.start != entry.range.end
-                        // if we match with the active diagnostic, skip it
-                        && Some(entry.diagnostic.group_id)
-                            != self.active_diagnostics.as_ref().map(|d| d.group_id)
                     {
-                        Some((entry.range, entry.diagnostic.group_id))
+                        let entry_group = entry.diagnostic.group_id;
-                    } else {
+                        let in_next_group = self.active_diagnostics.as_ref().map_or(
-                        None
+                            true,
+                            |active| match direction {
+                                Direction::Prev => {
+                                    entry_group != active.group_id
+                                        && (active.group_id == 0 || entry_group < active.group_id)
                                 }
+                                Direction::Next => {
+                                    entry_group != active.group_id
+                                        && (entry_group == 0 || entry_group > active.group_id)
+                                }
+                            },
+                        );
+                        if in_next_group {
+                            return Some((entry.range, entry.diagnostic.group_id));
+                        }
+                    }
+                    None
                 });
 
             if let Some((primary_range, group_id)) = group {

crates/editor/src/editor_tests.rs

@@ -10653,6 +10653,176 @@ async fn go_to_prev_overlapping_diagnostic(
     "});
 }
 
+#[gpui::test]
+async fn cycle_through_same_place_diagnostics(
+    executor: BackgroundExecutor,
+    cx: &mut gpui::TestAppContext,
+) {
+    init_test(cx, |_| {});
+
+    let mut cx = EditorTestContext::new(cx).await;
+    let lsp_store =
+        cx.update_editor(|editor, _, cx| editor.project.as_ref().unwrap().read(cx).lsp_store());
+
+    cx.set_state(indoc! {"
+        ˇfn func(abc def: i32) -> u32 {
+        }
+    "});
+
+    cx.update(|_, cx| {
+        lsp_store.update(cx, |lsp_store, cx| {
+            lsp_store
+                .update_diagnostics(
+                    LanguageServerId(0),
+                    lsp::PublishDiagnosticsParams {
+                        uri: lsp::Url::from_file_path(path!("/root/file")).unwrap(),
+                        version: None,
+                        diagnostics: vec![
+                            lsp::Diagnostic {
+                                range: lsp::Range::new(
+                                    lsp::Position::new(0, 11),
+                                    lsp::Position::new(0, 12),
+                                ),
+                                severity: Some(lsp::DiagnosticSeverity::ERROR),
+                                ..Default::default()
+                            },
+                            lsp::Diagnostic {
+                                range: lsp::Range::new(
+                                    lsp::Position::new(0, 12),
+                                    lsp::Position::new(0, 15),
+                                ),
+                                severity: Some(lsp::DiagnosticSeverity::ERROR),
+                                ..Default::default()
+                            },
+                            lsp::Diagnostic {
+                                range: lsp::Range::new(
+                                    lsp::Position::new(0, 12),
+                                    lsp::Position::new(0, 15),
+                                ),
+                                severity: Some(lsp::DiagnosticSeverity::ERROR),
+                                ..Default::default()
+                            },
+                            lsp::Diagnostic {
+                                range: lsp::Range::new(
+                                    lsp::Position::new(0, 25),
+                                    lsp::Position::new(0, 28),
+                                ),
+                                severity: Some(lsp::DiagnosticSeverity::ERROR),
+                                ..Default::default()
+                            },
+                        ],
+                    },
+                    &[],
+                    cx,
+                )
+                .unwrap()
+        });
+    });
+    executor.run_until_parked();
+
+    //// Backward
+
+    // Fourth diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_prev_diagnostic(&GoToPrevDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc def: i32) -> ˇu32 {
+        }
+    "});
+
+    // Third diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_prev_diagnostic(&GoToPrevDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc ˇdef: i32) -> u32 {
+        }
+    "});
+
+    // Second diagnostic, same place
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_prev_diagnostic(&GoToPrevDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc ˇdef: i32) -> u32 {
+        }
+    "});
+
+    // First diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_prev_diagnostic(&GoToPrevDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abcˇ def: i32) -> u32 {
+        }
+    "});
+
+    // Wrapped over, fourth diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_prev_diagnostic(&GoToPrevDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc def: i32) -> ˇu32 {
+        }
+    "});
+
+    cx.update_editor(|editor, window, cx| {
+        editor.move_to_beginning(&MoveToBeginning, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        ˇfn func(abc def: i32) -> u32 {
+        }
+    "});
+
+    //// Forward
+
+    // First diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_diagnostic(&GoToDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abcˇ def: i32) -> u32 {
+        }
+    "});
+
+    // Second diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_diagnostic(&GoToDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc ˇdef: i32) -> u32 {
+        }
+    "});
+
+    // Third diagnostic, same place
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_diagnostic(&GoToDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc ˇdef: i32) -> u32 {
+        }
+    "});
+
+    // Fourth diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_diagnostic(&GoToDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abc def: i32) -> ˇu32 {
+        }
+    "});
+
+    // Wrapped around, first diagnostic
+    cx.update_editor(|editor, window, cx| {
+        editor.go_to_diagnostic(&GoToDiagnostic, window, cx);
+    });
+    cx.assert_editor_state(indoc! {"
+        fn func(abcˇ def: i32) -> u32 {
+        }
+    "});
+}
+
 #[gpui::test]
 async fn test_diagnostics_with_links(cx: &mut TestAppContext) {
     init_test(cx, |_| {});