Initialize diagnostics when opening a document (#8873)

6 files changed, 76 insertions, 136 deletions

diff --git a/helix-term/src/application.rs b/helix-term/src/application.rs
index 3abe9cae..4eda8097 100644
--- a/helix-term/src/application.rs
+++ b/helix-term/src/application.rs
@@ -1,14 +1,8 @@
 use arc_swap::{access::Map, ArcSwap};
 use futures_util::Stream;
-use helix_core::{
-    chars::char_is_word,
-    diagnostic::{DiagnosticTag, NumberOrString},
-    path::get_relative_path,
-    pos_at_coords, syntax, Selection,
-};
+use helix_core::{path::get_relative_path, pos_at_coords, syntax, Selection};
 use helix_lsp::{
     lsp::{self, notification::Notification},
-    util::lsp_pos_to_pos,
     LspProgressMap,
 };
 use helix_view::{
@@ -392,6 +386,12 @@ impl Application {
         self.editor.syn_loader = self.syn_loader.clone();
         for document in self.editor.documents.values_mut() {
             document.detect_language(self.syn_loader.clone());
+            let diagnostics = Editor::doc_diagnostics(
+                &self.editor.language_servers,
+                &self.editor.diagnostics,
+                document,
+            );
+            document.replace_diagnostics(diagnostics, &[], None);
         }
 
         Ok(())
@@ -567,6 +567,14 @@ impl Application {
             let id = doc.id();
             doc.detect_language(loader);
             self.editor.refresh_language_servers(id);
+            // and again a borrow checker workaround...
+            let doc = doc_mut!(self.editor, &doc_save_event.doc_id);
+            let diagnostics = Editor::doc_diagnostics(
+                &self.editor.language_servers,
+                &self.editor.diagnostics,
+                doc,
+            );
+            doc.replace_diagnostics(diagnostics, &[], None);
         }
 
         // TODO: fix being overwritten by lsp
@@ -731,7 +739,6 @@ impl Application {
                             log::error!("Discarding publishDiagnostic notification sent by an uninitialized server: {}", language_server.name());
                             return;
                         }
-                        let offset_encoding = language_server.offset_encoding();
                         // have to inline the function because of borrow checking...
                         let doc = self.editor.documents.values_mut()
                             .find(|doc| doc.path().map(|p| p == &path).unwrap_or(false))
@@ -745,11 +752,10 @@ impl Application {
                                 true
                             });
 
-                        if let Some(doc) = doc {
+                        let mut unchanged_diag_sources = Vec::new();
+                        if let Some(doc) = &doc {
                             let lang_conf = doc.language.clone();
-                            let text = doc.text().clone();
 
-                            let mut unchaged_diag_sources_ = Vec::new();
                             if let Some(lang_conf) = &lang_conf {
                                 if let Some(old_diagnostics) =
                                     self.editor.diagnostics.get(&params.uri)
@@ -774,118 +780,11 @@ impl Application {
                                             })
                                             .map(|(d, _)| d);
                                         if new_diagnostics.eq(old_diagnostics) {
-                                            unchaged_diag_sources_.push(source.clone())
+                                            unchanged_diag_sources.push(source.clone())
                                         }
                                     }
                                 }
                             }
-
-                            let unchaged_diag_sources = &unchaged_diag_sources_;
-                            let diagnostics =
-                                params.diagnostics.iter().filter_map(move |diagnostic| {
-                                    use helix_core::diagnostic::{Diagnostic, Range, Severity::*};
-                                    use lsp::DiagnosticSeverity;
-
-                                    if diagnostic.source.as_ref().map_or(false, |source| {
-                                        unchaged_diag_sources.contains(source)
-                                    }) {
-                                        return None;
-                                    }
-
-                                    // TODO: convert inside server
-                                    let start = if let Some(start) = lsp_pos_to_pos(
-                                        &text,
-                                        diagnostic.range.start,
-                                        offset_encoding,
-                                    ) {
-                                        start
-                                    } else {
-                                        log::warn!("lsp position out of bounds - {:?}", diagnostic);
-                                        return None;
-                                    };
-
-                                    let end = if let Some(end) =
-                                        lsp_pos_to_pos(&text, diagnostic.range.end, offset_encoding)
-                                    {
-                                        end
-                                    } else {
-                                        log::warn!("lsp position out of bounds - {:?}", diagnostic);
-                                        return None;
-                                    };
-                                    let severity =
-                                        diagnostic.severity.map(|severity| match severity {
-                                            DiagnosticSeverity::ERROR => Error,
-                                            DiagnosticSeverity::WARNING => Warning,
-                                            DiagnosticSeverity::INFORMATION => Info,
-                                            DiagnosticSeverity::HINT => Hint,
-                                            severity => unreachable!(
-                                                "unrecognized diagnostic severity: {:?}",
-                                                severity
-                                            ),
-                                        });
-
-                                    if let Some(lang_conf) = &lang_conf {
-                                        if let Some(severity) = severity {
-                                            if severity < lang_conf.diagnostic_severity {
-                                                return None;
-                                            }
-                                        }
-                                    };
-
-                                    let code = match diagnostic.code.clone() {
-                                        Some(x) => match x {
-                                            lsp::NumberOrString::Number(x) => {
-                                                Some(NumberOrString::Number(x))
-                                            }
-                                            lsp::NumberOrString::String(x) => {
-                                                Some(NumberOrString::String(x))
-                                            }
-                                        },
-                                        None => None,
-                                    };
-
-                                    let tags = if let Some(tags) = &diagnostic.tags {
-                                        let new_tags = tags
-                                            .iter()
-                                            .filter_map(|tag| match *tag {
-                                                lsp::DiagnosticTag::DEPRECATED => {
-                                                    Some(DiagnosticTag::Deprecated)
-                                                }
-                                                lsp::DiagnosticTag::UNNECESSARY => {
-                                                    Some(DiagnosticTag::Unnecessary)
-                                                }
-                                                _ => None,
-                                            })
-                                            .collect();
-
-                                        new_tags
-                                    } else {
-                                        Vec::new()
-                                    };
-
-                                    let ends_at_word = start != end
-                                        && end != 0
-                                        && text.get_char(end - 1).map_or(false, char_is_word);
-                                    let starts_at_word = start != end
-                                        && text.get_char(start).map_or(false, char_is_word);
-
-                                    Some(Diagnostic {
-                                        range: Range { start, end },
-                                        ends_at_word,
-                                        starts_at_word,
-                                        zero_width: start == end,
-                                        line: diagnostic.range.start.line as usize,
-                                        message: diagnostic.message.clone(),
-                                        severity,
-                                        code,
-                                        tags,
-                                        source: diagnostic.source.clone(),
-                                        data: diagnostic.data.clone(),
-                                        language_server_id: server_id,
-                                    })
-                                });
-
-                            doc.replace_diagnostics(diagnostics, unchaged_diag_sources, server_id);
                         }
 
                         let diagnostics = params.diagnostics.into_iter().map(|d| (d, server_id));
@@ -910,6 +809,27 @@ impl Application {
                         diagnostics.sort_unstable_by_key(|(d, server_id)| {
                             (d.severity, d.range.start, *server_id)
                         });
+
+                        if let Some(doc) = doc {
+                            let diagnostic_of_language_server_and_not_in_unchanged_sources =
+                                |diagnostic: &lsp::Diagnostic, ls_id| {
+                                    ls_id == server_id
+                                        && diagnostic.source.as_ref().map_or(true, |source| {
+                                            !unchanged_diag_sources.contains(source)
+                                        })
+                                };
+                            let diagnostics = Editor::doc_diagnostics_with_filter(
+                                &self.editor.language_servers,
+                                &self.editor.diagnostics,
+                                doc,
+                                diagnostic_of_language_server_and_not_in_unchanged_sources,
+                            );
+                            doc.replace_diagnostics(
+                                diagnostics,
+                                &unchanged_diag_sources,
+                                Some(server_id),
+                            );
+                        }
                     }
                     Notification::ShowMessage(params) => {
                         log::warn!("unhandled window/showMessage: {:?}", params);
@@ -1017,7 +937,7 @@ impl Application {
 
                         // Clear any diagnostics for documents with this server open.
                         for doc in self.editor.documents_mut() {
-                            doc.clear_diagnostics(server_id);
+                            doc.clear_diagnostics(Some(server_id));
                         }
 
                         // Remove the language server from the registry.
diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index ff0849f2..c9593380 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -3350,7 +3350,7 @@ fn exit_select_mode(cx: &mut Context) {
 
 fn goto_first_diag(cx: &mut Context) {
     let (view, doc) = current!(cx.editor);
-    let selection = match doc.shown_diagnostics().next() {
+    let selection = match doc.diagnostics().first() {
         Some(diag) => Selection::single(diag.range.start, diag.range.end),
         None => return,
     };
@@ -3359,7 +3359,7 @@ fn goto_first_diag(cx: &mut Context) {
 
 fn goto_last_diag(cx: &mut Context) {
     let (view, doc) = current!(cx.editor);
-    let selection = match doc.shown_diagnostics().last() {
+    let selection = match doc.diagnostics().last() {
         Some(diag) => Selection::single(diag.range.start, diag.range.end),
         None => return,
     };
@@ -3375,9 +3375,10 @@ fn goto_next_diag(cx: &mut Context) {
         .cursor(doc.text().slice(..));
 
     let diag = doc
-        .shown_diagnostics()
+        .diagnostics()
+        .iter()
         .find(|diag| diag.range.start > cursor_pos)
-        .or_else(|| doc.shown_diagnostics().next());
+        .or_else(|| doc.diagnostics().first());
 
     let selection = match diag {
         Some(diag) => Selection::single(diag.range.start, diag.range.end),
@@ -3395,10 +3396,11 @@ fn goto_prev_diag(cx: &mut Context) {
         .cursor(doc.text().slice(..));
 
     let diag = doc
-        .shown_diagnostics()
+        .diagnostics()
+        .iter()
         .rev()
         .find(|diag| diag.range.start < cursor_pos)
-        .or_else(|| doc.shown_diagnostics().last());
+        .or_else(|| doc.diagnostics().last());
 
     let selection = match diag {
         // NOTE: the selection is reversed because we're jumping to the
@@ -4185,9 +4187,13 @@ fn replace_with_yanked(cx: &mut Context) {
 }
 
 fn replace_with_yanked_impl(editor: &mut Editor, register: char, count: usize) {
-    let Some(values) = editor.registers
+    let Some(values) = editor
+        .registers
         .read(register, editor)
-        .filter(|values| values.len() > 0) else { return };
+        .filter(|values| values.len() > 0)
+    else {
+        return;
+    };
     let values: Vec<_> = values.map(|value| value.to_string()).collect();
 
     let (view, doc) = current!(editor);
@@ -4224,7 +4230,9 @@ fn replace_selections_with_primary_clipboard(cx: &mut Context) {
 }
 
 fn paste(editor: &mut Editor, register: char, pos: Paste, count: usize) {
-    let Some(values) = editor.registers.read(register, editor) else { return };
+    let Some(values) = editor.registers.read(register, editor) else {
+        return;
+    };
     let values: Vec<_> = values.map(|value| value.to_string()).collect();
 
     let (view, doc) = current!(editor);
diff --git a/helix-term/src/commands/typed.rs b/helix-term/src/commands/typed.rs
index f530ce10..208854e8 100644
--- a/helix-term/src/commands/typed.rs
+++ b/helix-term/src/commands/typed.rs
@@ -1502,7 +1502,7 @@ fn lsp_stop(
 
         for doc in cx.editor.documents_mut() {
             if let Some(client) = doc.remove_language_server_by_name(ls_name) {
-                doc.clear_diagnostics(client.id());
+                doc.clear_diagnostics(Some(client.id()));
             }
         }
     }
@@ -2008,6 +2008,10 @@ fn language(
 
     let id = doc.id();
     cx.editor.refresh_language_servers(id);
+    let doc = doc_mut!(cx.editor);
+    let diagnostics =
+        Editor::doc_diagnostics(&cx.editor.language_servers, &cx.editor.diagnostics, doc);
+    doc.replace_diagnostics(diagnostics, &[], None);
     Ok(())
 }
 
diff --git a/helix-term/src/ui/editor.rs b/helix-term/src/ui/editor.rs
index ff267e42..24fcdb01 100644
--- a/helix-term/src/ui/editor.rs
+++ b/helix-term/src/ui/editor.rs
@@ -386,7 +386,7 @@ impl EditorView {
         let mut warning_vec = Vec::new();
         let mut error_vec = Vec::new();
 
-        for diagnostic in doc.shown_diagnostics() {
+        for diagnostic in doc.diagnostics() {
             // Separate diagnostics into different Vecs by severity.
             let (vec, scope) = match diagnostic.severity {
                 Some(Severity::Info) => (&mut info_vec, info),
@@ -684,7 +684,7 @@ impl EditorView {
             .primary()
             .cursor(doc.text().slice(..));
 
-        let diagnostics = doc.shown_diagnostics().filter(|diagnostic| {
+        let diagnostics = doc.diagnostics().iter().filter(|diagnostic| {
             diagnostic.range.start <= cursor && diagnostic.range.end >= cursor
         });
 
diff --git a/helix-term/src/ui/picker.rs b/helix-term/src/ui/picker.rs
index 9ba45335..08a367ba 100644
--- a/helix-term/src/ui/picker.rs
+++ b/helix-term/src/ui/picker.rs
@@ -480,8 +480,7 @@ impl<T: Item + 'static> Picker<T> {
                                 .find::<Overlay<DynamicPicker<T>>>()
                                 .map(|overlay| &mut overlay.content.file_picker),
                         };
-                        let Some(picker) = picker
-                        else {
+                        let Some(picker) = picker else {
                             log::info!("picker closed before syntax highlighting finished");
                             return;
                         };
@@ -489,7 +488,15 @@ impl<T: Item + 'static> Picker<T> {
                         let doc = match current_file {
                             PathOrId::Id(doc_id) => doc_mut!(editor, &doc_id),
                             PathOrId::Path(path) => match picker.preview_cache.get_mut(&path) {
-                                Some(CachedPreview::Document(ref mut doc)) => doc,
+                                Some(CachedPreview::Document(ref mut doc)) => {
+                                    let diagnostics = Editor::doc_diagnostics(
+                                        &editor.language_servers,
+                                        &editor.diagnostics,
+                                        doc,
+                                    );
+                                    doc.replace_diagnostics(diagnostics, &[], None);
+                                    doc
+                                }
                                 _ => return,
                             },
                         };
diff --git a/helix-term/src/ui/statusline.rs b/helix-term/src/ui/statusline.rs
index 52dd49f9..9871828e 100644
--- a/helix-term/src/ui/statusline.rs
+++ b/helix-term/src/ui/statusline.rs
@@ -227,7 +227,8 @@ where
 {
     let (warnings, errors) = context
         .doc
-        .shown_diagnostics()
+        .diagnostics()
+        .iter()
         .fold((0, 0), |mut counts, diag| {
             use helix_core::diagnostic::Severity;
             match diag.severity {