1 //! Conversion of rust-analyzer specific types to lsp_types equivalents.
5 sync::atomic::{AtomicU32, Ordering},
9 Annotation, AnnotationKind, Assist, AssistKind, Cancellable, CompletionItem,
10 CompletionItemKind, CompletionRelevance, Documentation, FileId, FileRange, FileSystemEdit,
11 Fold, FoldKind, Highlight, HlMod, HlOperator, HlPunct, HlRange, HlTag, Indel, InlayHint,
12 InlayHintLabel, InlayKind, Markup, NavigationTarget, ReferenceCategory, RenameError, Runnable,
13 Severity, SignatureHelp, SourceChange, StructureNodeKind, SymbolKind, TextEdit, TextRange,
16 use itertools::Itertools;
17 use serde_json::to_value;
21 cargo_target_spec::CargoTargetSpec,
22 config::{CallInfoConfig, Config},
23 global_state::GlobalStateSnapshot,
24 line_index::{LineEndings, LineIndex, OffsetEncoding},
26 lsp_utils::invalid_params_error,
27 semantic_tokens, Result,
30 pub(crate) fn position(line_index: &LineIndex, offset: TextSize) -> lsp_types::Position {
31 let line_col = line_index.index.line_col(offset);
32 match line_index.encoding {
33 OffsetEncoding::Utf8 => lsp_types::Position::new(line_col.line, line_col.col),
34 OffsetEncoding::Utf16 => {
35 let line_col = line_index.index.to_utf16(line_col);
36 lsp_types::Position::new(line_col.line, line_col.col)
41 pub(crate) fn range(line_index: &LineIndex, range: TextRange) -> lsp_types::Range {
42 let start = position(line_index, range.start());
43 let end = position(line_index, range.end());
44 lsp_types::Range::new(start, end)
47 pub(crate) fn symbol_kind(symbol_kind: SymbolKind) -> lsp_types::SymbolKind {
49 SymbolKind::Function => lsp_types::SymbolKind::FUNCTION,
50 SymbolKind::Struct => lsp_types::SymbolKind::STRUCT,
51 SymbolKind::Enum => lsp_types::SymbolKind::ENUM,
52 SymbolKind::Variant => lsp_types::SymbolKind::ENUM_MEMBER,
53 SymbolKind::Trait => lsp_types::SymbolKind::INTERFACE,
55 | SymbolKind::BuiltinAttr
56 | SymbolKind::Attribute
58 | SymbolKind::DeriveHelper => lsp_types::SymbolKind::FUNCTION,
59 SymbolKind::Module | SymbolKind::ToolModule => lsp_types::SymbolKind::MODULE,
60 SymbolKind::TypeAlias | SymbolKind::TypeParam | SymbolKind::SelfType => {
61 lsp_types::SymbolKind::TYPE_PARAMETER
63 SymbolKind::Field => lsp_types::SymbolKind::FIELD,
64 SymbolKind::Static => lsp_types::SymbolKind::CONSTANT,
65 SymbolKind::Const => lsp_types::SymbolKind::CONSTANT,
66 SymbolKind::ConstParam => lsp_types::SymbolKind::CONSTANT,
67 SymbolKind::Impl => lsp_types::SymbolKind::OBJECT,
69 | SymbolKind::SelfParam
70 | SymbolKind::LifetimeParam
71 | SymbolKind::ValueParam
72 | SymbolKind::Label => lsp_types::SymbolKind::VARIABLE,
73 SymbolKind::Union => lsp_types::SymbolKind::STRUCT,
77 pub(crate) fn structure_node_kind(kind: StructureNodeKind) -> lsp_types::SymbolKind {
79 StructureNodeKind::SymbolKind(symbol) => symbol_kind(symbol),
80 StructureNodeKind::Region => lsp_types::SymbolKind::NAMESPACE,
84 pub(crate) fn document_highlight_kind(
85 category: ReferenceCategory,
86 ) -> lsp_types::DocumentHighlightKind {
88 ReferenceCategory::Read => lsp_types::DocumentHighlightKind::READ,
89 ReferenceCategory::Write => lsp_types::DocumentHighlightKind::WRITE,
93 pub(crate) fn diagnostic_severity(severity: Severity) -> lsp_types::DiagnosticSeverity {
95 Severity::Error => lsp_types::DiagnosticSeverity::ERROR,
96 Severity::WeakWarning => lsp_types::DiagnosticSeverity::HINT,
100 pub(crate) fn documentation(documentation: Documentation) -> lsp_types::Documentation {
101 let value = crate::markdown::format_docs(documentation.as_str());
102 let markup_content = lsp_types::MarkupContent { kind: lsp_types::MarkupKind::Markdown, value };
103 lsp_types::Documentation::MarkupContent(markup_content)
106 pub(crate) fn completion_item_kind(
107 completion_item_kind: CompletionItemKind,
108 ) -> lsp_types::CompletionItemKind {
109 match completion_item_kind {
110 CompletionItemKind::Binding => lsp_types::CompletionItemKind::VARIABLE,
111 CompletionItemKind::BuiltinType => lsp_types::CompletionItemKind::STRUCT,
112 CompletionItemKind::InferredType => lsp_types::CompletionItemKind::SNIPPET,
113 CompletionItemKind::Keyword => lsp_types::CompletionItemKind::KEYWORD,
114 CompletionItemKind::Method => lsp_types::CompletionItemKind::METHOD,
115 CompletionItemKind::Snippet => lsp_types::CompletionItemKind::SNIPPET,
116 CompletionItemKind::UnresolvedReference => lsp_types::CompletionItemKind::REFERENCE,
117 CompletionItemKind::SymbolKind(symbol) => match symbol {
118 SymbolKind::Attribute => lsp_types::CompletionItemKind::FUNCTION,
119 SymbolKind::Const => lsp_types::CompletionItemKind::CONSTANT,
120 SymbolKind::ConstParam => lsp_types::CompletionItemKind::TYPE_PARAMETER,
121 SymbolKind::Derive => lsp_types::CompletionItemKind::FUNCTION,
122 SymbolKind::DeriveHelper => lsp_types::CompletionItemKind::FUNCTION,
123 SymbolKind::Enum => lsp_types::CompletionItemKind::ENUM,
124 SymbolKind::Field => lsp_types::CompletionItemKind::FIELD,
125 SymbolKind::Function => lsp_types::CompletionItemKind::FUNCTION,
126 SymbolKind::Impl => lsp_types::CompletionItemKind::TEXT,
127 SymbolKind::Label => lsp_types::CompletionItemKind::VARIABLE,
128 SymbolKind::LifetimeParam => lsp_types::CompletionItemKind::TYPE_PARAMETER,
129 SymbolKind::Local => lsp_types::CompletionItemKind::VARIABLE,
130 SymbolKind::Macro => lsp_types::CompletionItemKind::FUNCTION,
131 SymbolKind::Module => lsp_types::CompletionItemKind::MODULE,
132 SymbolKind::SelfParam => lsp_types::CompletionItemKind::VALUE,
133 SymbolKind::SelfType => lsp_types::CompletionItemKind::TYPE_PARAMETER,
134 SymbolKind::Static => lsp_types::CompletionItemKind::VALUE,
135 SymbolKind::Struct => lsp_types::CompletionItemKind::STRUCT,
136 SymbolKind::Trait => lsp_types::CompletionItemKind::INTERFACE,
137 SymbolKind::TypeAlias => lsp_types::CompletionItemKind::STRUCT,
138 SymbolKind::TypeParam => lsp_types::CompletionItemKind::TYPE_PARAMETER,
139 SymbolKind::Union => lsp_types::CompletionItemKind::STRUCT,
140 SymbolKind::ValueParam => lsp_types::CompletionItemKind::VALUE,
141 SymbolKind::Variant => lsp_types::CompletionItemKind::ENUM_MEMBER,
142 SymbolKind::BuiltinAttr => lsp_types::CompletionItemKind::FUNCTION,
143 SymbolKind::ToolModule => lsp_types::CompletionItemKind::MODULE,
148 pub(crate) fn text_edit(line_index: &LineIndex, indel: Indel) -> lsp_types::TextEdit {
149 let range = range(line_index, indel.delete);
150 let new_text = match line_index.endings {
151 LineEndings::Unix => indel.insert,
152 LineEndings::Dos => indel.insert.replace('\n', "\r\n"),
154 lsp_types::TextEdit { range, new_text }
157 pub(crate) fn completion_text_edit(
158 line_index: &LineIndex,
159 insert_replace_support: Option<lsp_types::Position>,
161 ) -> lsp_types::CompletionTextEdit {
162 let text_edit = text_edit(line_index, indel);
163 match insert_replace_support {
164 Some(cursor_pos) => lsp_types::InsertReplaceEdit {
165 new_text: text_edit.new_text,
166 insert: lsp_types::Range { start: text_edit.range.start, end: cursor_pos },
167 replace: text_edit.range,
170 None => text_edit.into(),
174 pub(crate) fn snippet_text_edit(
175 line_index: &LineIndex,
178 ) -> lsp_ext::SnippetTextEdit {
179 let text_edit = text_edit(line_index, indel);
180 let insert_text_format =
181 if is_snippet { Some(lsp_types::InsertTextFormat::SNIPPET) } else { None };
182 lsp_ext::SnippetTextEdit {
183 range: text_edit.range,
184 new_text: text_edit.new_text,
190 pub(crate) fn text_edit_vec(
191 line_index: &LineIndex,
193 ) -> Vec<lsp_types::TextEdit> {
194 text_edit.into_iter().map(|indel| self::text_edit(line_index, indel)).collect()
197 pub(crate) fn snippet_text_edit_vec(
198 line_index: &LineIndex,
201 ) -> Vec<lsp_ext::SnippetTextEdit> {
204 .map(|indel| self::snippet_text_edit(line_index, is_snippet, indel))
208 pub(crate) fn completion_items(
210 line_index: &LineIndex,
211 tdpp: lsp_types::TextDocumentPositionParams,
212 items: Vec<CompletionItem>,
213 ) -> Vec<lsp_types::CompletionItem> {
214 let max_relevance = items.iter().map(|it| it.relevance().score()).max().unwrap_or_default();
215 let mut res = Vec::with_capacity(items.len());
217 completion_item(&mut res, config, line_index, &tdpp, max_relevance, item)
223 acc: &mut Vec<lsp_types::CompletionItem>,
225 line_index: &LineIndex,
226 tdpp: &lsp_types::TextDocumentPositionParams,
228 item: CompletionItem,
230 let insert_replace_support = config.insert_replace_support().then(|| tdpp.position);
231 let mut additional_text_edits = Vec::new();
233 // LSP does not allow arbitrary edits in completion, so we have to do a
234 // non-trivial mapping here.
236 let mut text_edit = None;
237 let source_range = item.source_range();
238 for indel in item.text_edit().iter() {
239 if indel.delete.contains_range(source_range) {
240 text_edit = Some(if indel.delete == source_range {
241 self::completion_text_edit(line_index, insert_replace_support, indel.clone())
243 assert!(source_range.end() == indel.delete.end());
244 let range1 = TextRange::new(indel.delete.start(), source_range.start());
245 let range2 = source_range;
246 let indel1 = Indel::replace(range1, String::new());
247 let indel2 = Indel::replace(range2, indel.insert.clone());
248 additional_text_edits.push(self::text_edit(line_index, indel1));
249 self::completion_text_edit(line_index, insert_replace_support, indel2)
252 assert!(source_range.intersect(indel.delete).is_none());
253 let text_edit = self::text_edit(line_index, indel.clone());
254 additional_text_edits.push(text_edit);
260 let insert_text_format = item.is_snippet().then(|| lsp_types::InsertTextFormat::SNIPPET);
261 let tags = item.deprecated().then(|| vec![lsp_types::CompletionItemTag::DEPRECATED]);
262 let command = if item.trigger_call_info() && config.client_commands().trigger_parameter_hints {
263 Some(command::trigger_parameter_hints())
268 let mut lsp_item = lsp_types::CompletionItem {
269 label: item.label().to_string(),
270 detail: item.detail().map(|it| it.to_string()),
271 filter_text: Some(item.lookup().to_string()),
272 kind: Some(completion_item_kind(item.kind())),
273 text_edit: Some(text_edit),
274 additional_text_edits: Some(additional_text_edits),
275 documentation: item.documentation().map(documentation),
276 deprecated: Some(item.deprecated()),
283 if config.completion_label_details_support() {
284 lsp_item.label_details = Some(lsp_types::CompletionItemLabelDetails {
286 description: lsp_item.detail.clone(),
290 set_score(&mut lsp_item, max_relevance, item.relevance());
292 if config.completion().enable_imports_on_the_fly {
293 if let imports @ [_, ..] = item.imports_to_add() {
294 let imports: Vec<_> = imports
296 .filter_map(|import_edit| {
297 let import_path = &import_edit.import_path;
298 let import_name = import_path.segments().last()?;
299 Some(lsp_ext::CompletionImport {
300 full_import_path: import_path.to_string(),
301 imported_name: import_name.to_string(),
305 if !imports.is_empty() {
306 let data = lsp_ext::CompletionResolveData { position: tdpp.clone(), imports };
307 lsp_item.data = Some(to_value(data).unwrap());
312 if let Some((mutability, offset, relevance)) = item.ref_match() {
313 let mut lsp_item_with_ref = lsp_item.clone();
314 set_score(&mut lsp_item_with_ref, max_relevance, relevance);
315 lsp_item_with_ref.label =
316 format!("&{}{}", mutability.as_keyword_for_ref(), lsp_item_with_ref.label);
317 lsp_item_with_ref.additional_text_edits.get_or_insert_with(Default::default).push(
320 Indel::insert(offset, format!("&{}", mutability.as_keyword_for_ref())),
324 acc.push(lsp_item_with_ref);
330 res: &mut lsp_types::CompletionItem,
332 relevance: CompletionRelevance,
334 if relevance.is_relevant() && relevance.score() == max_relevance {
335 res.preselect = Some(true);
337 // The relevance needs to be inverted to come up with a sort score
338 // because the client will sort ascending.
339 let sort_score = relevance.score() ^ 0xFF_FF_FF_FF;
340 // Zero pad the string to ensure values can be properly sorted
341 // by the client. Hex format is used because it is easier to
342 // visually compare very large values, which the sort text
343 // tends to be since it is the opposite of the score.
344 res.sort_text = Some(format!("{:08x}", sort_score));
348 pub(crate) fn signature_help(
349 call_info: SignatureHelp,
350 config: CallInfoConfig,
352 ) -> lsp_types::SignatureHelp {
353 let (label, parameters) = match (config.params_only, label_offsets) {
354 (concise, false) => {
355 let params = call_info
357 .map(|label| lsp_types::ParameterInformation {
358 label: lsp_types::ParameterLabel::Simple(label.to_string()),
361 .collect::<Vec<_>>();
363 if concise { call_info.parameter_labels().join(", ") } else { call_info.signature };
367 let params = call_info
371 let start = call_info.signature[..it.start().into()].chars().count() as u32;
372 let end = call_info.signature[..it.end().into()].chars().count() as u32;
375 .map(|label_offsets| lsp_types::ParameterInformation {
376 label: lsp_types::ParameterLabel::LabelOffsets(label_offsets),
379 .collect::<Vec<_>>();
380 (call_info.signature, params)
383 let mut params = Vec::new();
384 let mut label = String::new();
385 let mut first = true;
386 for param in call_info.parameter_labels() {
388 label.push_str(", ");
391 let start = label.chars().count() as u32;
392 label.push_str(param);
393 let end = label.chars().count() as u32;
394 params.push(lsp_types::ParameterInformation {
395 label: lsp_types::ParameterLabel::LabelOffsets([start, end]),
404 let documentation = call_info.doc.filter(|_| config.docs).map(|doc| {
405 lsp_types::Documentation::MarkupContent(lsp_types::MarkupContent {
406 kind: lsp_types::MarkupKind::Markdown,
411 let active_parameter = call_info.active_parameter.map(|it| it as u32);
413 let signature = lsp_types::SignatureInformation {
416 parameters: Some(parameters),
419 lsp_types::SignatureHelp {
420 signatures: vec![signature],
421 active_signature: Some(0),
426 pub(crate) fn inlay_hint(
427 snap: &GlobalStateSnapshot,
428 line_index: &LineIndex,
430 mut inlay_hint: InlayHint,
431 ) -> Result<lsp_types::InlayHint> {
432 match inlay_hint.kind {
433 InlayKind::ParameterHint if render_colons => inlay_hint.label.append_str(":"),
434 InlayKind::TypeHint if render_colons => inlay_hint.label.prepend_str(": "),
435 InlayKind::ClosureReturnTypeHint => inlay_hint.label.prepend_str(" -> "),
439 Ok(lsp_types::InlayHint {
440 position: match inlay_hint.kind {
441 // before annotated thing
442 InlayKind::ParameterHint
443 | InlayKind::ImplicitReborrowHint
444 | InlayKind::BindingModeHint => position(line_index, inlay_hint.range.start()),
445 // after annotated thing
446 InlayKind::ClosureReturnTypeHint
447 | InlayKind::TypeHint
448 | InlayKind::ChainingHint
449 | InlayKind::GenericParamListHint
450 | InlayKind::LifetimeHint
451 | InlayKind::ClosingBraceHint => position(line_index, inlay_hint.range.end()),
453 padding_left: Some(match inlay_hint.kind {
454 InlayKind::TypeHint => !render_colons,
455 InlayKind::ChainingHint | InlayKind::ClosingBraceHint => true,
456 InlayKind::BindingModeHint
457 | InlayKind::ClosureReturnTypeHint
458 | InlayKind::GenericParamListHint
459 | InlayKind::ImplicitReborrowHint
460 | InlayKind::LifetimeHint
461 | InlayKind::ParameterHint => false,
463 padding_right: Some(match inlay_hint.kind {
464 InlayKind::ChainingHint
465 | InlayKind::ClosureReturnTypeHint
466 | InlayKind::GenericParamListHint
467 | InlayKind::ImplicitReborrowHint
468 | InlayKind::TypeHint
469 | InlayKind::ClosingBraceHint => false,
470 InlayKind::BindingModeHint => inlay_hint.label.as_simple_str() != Some("&"),
471 InlayKind::ParameterHint | InlayKind::LifetimeHint => true,
473 kind: match inlay_hint.kind {
474 InlayKind::ParameterHint => Some(lsp_types::InlayHintKind::PARAMETER),
475 InlayKind::ClosureReturnTypeHint | InlayKind::TypeHint | InlayKind::ChainingHint => {
476 Some(lsp_types::InlayHintKind::TYPE)
478 InlayKind::BindingModeHint
479 | InlayKind::GenericParamListHint
480 | InlayKind::LifetimeHint
481 | InlayKind::ImplicitReborrowHint
482 | InlayKind::ClosingBraceHint => None,
485 data: (|| match inlay_hint.tooltip {
486 Some(ide::InlayTooltip::HoverOffset(file_id, offset)) => {
487 let uri = url(snap, file_id);
488 let line_index = snap.file_line_index(file_id).ok()?;
490 let text_document = lsp_types::TextDocumentIdentifier { uri };
491 to_value(lsp_ext::InlayHintResolveData {
493 position: lsp_ext::PositionOrRange::Position(position(&line_index, offset)),
497 Some(ide::InlayTooltip::HoverRanged(file_id, text_range)) => {
498 let uri = url(snap, file_id);
499 let text_document = lsp_types::TextDocumentIdentifier { uri };
500 let line_index = snap.file_line_index(file_id).ok()?;
501 to_value(lsp_ext::InlayHintResolveData {
503 position: lsp_ext::PositionOrRange::Range(range(&line_index, text_range)),
509 tooltip: Some(match inlay_hint.tooltip {
510 Some(ide::InlayTooltip::String(s)) => lsp_types::InlayHintTooltip::String(s),
511 _ => lsp_types::InlayHintTooltip::String(inlay_hint.label.to_string()),
513 label: inlay_hint_label(snap, inlay_hint.label)?,
518 snap: &GlobalStateSnapshot,
519 label: InlayHintLabel,
520 ) -> Result<lsp_types::InlayHintLabel> {
521 Ok(match label.as_simple_str() {
522 Some(s) => lsp_types::InlayHintLabel::String(s.into()),
523 None => lsp_types::InlayHintLabel::LabelParts(
528 Ok(lsp_types::InlayHintLabelPart {
533 .map(|range| location(snap, range))
538 .collect::<Result<Vec<_>>>()?,
543 static TOKEN_RESULT_COUNTER: AtomicU32 = AtomicU32::new(1);
545 pub(crate) fn semantic_tokens(
547 line_index: &LineIndex,
548 highlights: Vec<HlRange>,
549 ) -> lsp_types::SemanticTokens {
550 let id = TOKEN_RESULT_COUNTER.fetch_add(1, Ordering::SeqCst).to_string();
551 let mut builder = semantic_tokens::SemanticTokensBuilder::new(id);
553 for highlight_range in highlights {
554 if highlight_range.highlight.is_empty() {
558 let (ty, mods) = semantic_token_type_and_modifiers(highlight_range.highlight);
559 let token_index = semantic_tokens::type_index(ty);
560 let modifier_bitset = mods.0;
562 for mut text_range in line_index.index.lines(highlight_range.range) {
563 if text[text_range].ends_with('\n') {
565 TextRange::new(text_range.start(), text_range.end() - TextSize::of('\n'));
567 let range = range(line_index, text_range);
568 builder.push(range, token_index, modifier_bitset);
575 pub(crate) fn semantic_token_delta(
576 previous: &lsp_types::SemanticTokens,
577 current: &lsp_types::SemanticTokens,
578 ) -> lsp_types::SemanticTokensDelta {
579 let result_id = current.result_id.clone();
580 let edits = semantic_tokens::diff_tokens(&previous.data, ¤t.data);
581 lsp_types::SemanticTokensDelta { result_id, edits }
584 fn semantic_token_type_and_modifiers(
585 highlight: Highlight,
586 ) -> (lsp_types::SemanticTokenType, semantic_tokens::ModifierSet) {
587 let mut mods = semantic_tokens::ModifierSet::default();
588 let type_ = match highlight.tag {
589 HlTag::Symbol(symbol) => match symbol {
590 SymbolKind::Attribute => semantic_tokens::DECORATOR,
591 SymbolKind::Derive => semantic_tokens::DERIVE,
592 SymbolKind::DeriveHelper => semantic_tokens::DERIVE_HELPER,
593 SymbolKind::Module => semantic_tokens::NAMESPACE,
594 SymbolKind::Impl => semantic_tokens::TYPE_ALIAS,
595 SymbolKind::Field => semantic_tokens::PROPERTY,
596 SymbolKind::TypeParam => semantic_tokens::TYPE_PARAMETER,
597 SymbolKind::ConstParam => semantic_tokens::CONST_PARAMETER,
598 SymbolKind::LifetimeParam => semantic_tokens::LIFETIME,
599 SymbolKind::Label => semantic_tokens::LABEL,
600 SymbolKind::ValueParam => semantic_tokens::PARAMETER,
601 SymbolKind::SelfParam => semantic_tokens::SELF_KEYWORD,
602 SymbolKind::SelfType => semantic_tokens::SELF_TYPE_KEYWORD,
603 SymbolKind::Local => semantic_tokens::VARIABLE,
604 SymbolKind::Function => {
605 if highlight.mods.contains(HlMod::Associated) {
606 semantic_tokens::METHOD
608 semantic_tokens::FUNCTION
611 SymbolKind::Const => {
612 mods |= semantic_tokens::CONSTANT;
613 mods |= semantic_tokens::STATIC;
614 semantic_tokens::VARIABLE
616 SymbolKind::Static => {
617 mods |= semantic_tokens::STATIC;
618 semantic_tokens::VARIABLE
620 SymbolKind::Struct => semantic_tokens::STRUCT,
621 SymbolKind::Enum => semantic_tokens::ENUM,
622 SymbolKind::Variant => semantic_tokens::ENUM_MEMBER,
623 SymbolKind::Union => semantic_tokens::UNION,
624 SymbolKind::TypeAlias => semantic_tokens::TYPE_ALIAS,
625 SymbolKind::Trait => semantic_tokens::INTERFACE,
626 SymbolKind::Macro => semantic_tokens::MACRO,
627 SymbolKind::BuiltinAttr => semantic_tokens::BUILTIN_ATTRIBUTE,
628 SymbolKind::ToolModule => semantic_tokens::TOOL_MODULE,
630 HlTag::AttributeBracket => semantic_tokens::ATTRIBUTE_BRACKET,
631 HlTag::BoolLiteral => semantic_tokens::BOOLEAN,
632 HlTag::BuiltinType => semantic_tokens::BUILTIN_TYPE,
633 HlTag::ByteLiteral | HlTag::NumericLiteral => semantic_tokens::NUMBER,
634 HlTag::CharLiteral => semantic_tokens::CHAR,
635 HlTag::Comment => semantic_tokens::COMMENT,
636 HlTag::EscapeSequence => semantic_tokens::ESCAPE_SEQUENCE,
637 HlTag::FormatSpecifier => semantic_tokens::FORMAT_SPECIFIER,
638 HlTag::Keyword => semantic_tokens::KEYWORD,
639 HlTag::None => semantic_tokens::GENERIC,
640 HlTag::Operator(op) => match op {
641 HlOperator::Bitwise => semantic_tokens::BITWISE,
642 HlOperator::Arithmetic => semantic_tokens::ARITHMETIC,
643 HlOperator::Logical => semantic_tokens::LOGICAL,
644 HlOperator::Comparison => semantic_tokens::COMPARISON,
645 HlOperator::Other => semantic_tokens::OPERATOR,
647 HlTag::StringLiteral => semantic_tokens::STRING,
648 HlTag::UnresolvedReference => semantic_tokens::UNRESOLVED_REFERENCE,
649 HlTag::Punctuation(punct) => match punct {
650 HlPunct::Bracket => semantic_tokens::BRACKET,
651 HlPunct::Brace => semantic_tokens::BRACE,
652 HlPunct::Parenthesis => semantic_tokens::PARENTHESIS,
653 HlPunct::Angle => semantic_tokens::ANGLE,
654 HlPunct::Comma => semantic_tokens::COMMA,
655 HlPunct::Dot => semantic_tokens::DOT,
656 HlPunct::Colon => semantic_tokens::COLON,
657 HlPunct::Semi => semantic_tokens::SEMICOLON,
658 HlPunct::Other => semantic_tokens::PUNCTUATION,
659 HlPunct::MacroBang => semantic_tokens::MACRO_BANG,
663 for modifier in highlight.mods.iter() {
664 let modifier = match modifier {
665 HlMod::Associated => continue,
666 HlMod::Async => semantic_tokens::ASYNC,
667 HlMod::Attribute => semantic_tokens::ATTRIBUTE_MODIFIER,
668 HlMod::Callable => semantic_tokens::CALLABLE,
669 HlMod::Consuming => semantic_tokens::CONSUMING,
670 HlMod::ControlFlow => semantic_tokens::CONTROL_FLOW,
671 HlMod::CrateRoot => semantic_tokens::CRATE_ROOT,
672 HlMod::DefaultLibrary => semantic_tokens::DEFAULT_LIBRARY,
673 HlMod::Definition => semantic_tokens::DECLARATION,
674 HlMod::Documentation => semantic_tokens::DOCUMENTATION,
675 HlMod::Injected => semantic_tokens::INJECTED,
676 HlMod::IntraDocLink => semantic_tokens::INTRA_DOC_LINK,
677 HlMod::Library => semantic_tokens::LIBRARY,
678 HlMod::Mutable => semantic_tokens::MUTABLE,
679 HlMod::Public => semantic_tokens::PUBLIC,
680 HlMod::Reference => semantic_tokens::REFERENCE,
681 HlMod::Static => semantic_tokens::STATIC,
682 HlMod::Trait => semantic_tokens::TRAIT_MODIFIER,
683 HlMod::Unsafe => semantic_tokens::UNSAFE,
691 pub(crate) fn folding_range(
693 line_index: &LineIndex,
694 line_folding_only: bool,
696 ) -> lsp_types::FoldingRange {
697 let kind = match fold.kind {
698 FoldKind::Comment => Some(lsp_types::FoldingRangeKind::Comment),
699 FoldKind::Imports => Some(lsp_types::FoldingRangeKind::Imports),
700 FoldKind::Region => Some(lsp_types::FoldingRangeKind::Region),
706 | FoldKind::WhereClause
707 | FoldKind::ReturnType
709 | FoldKind::MatchArm => None,
712 let range = range(line_index, fold.range);
714 if line_folding_only {
715 // Clients with line_folding_only == true (such as VSCode) will fold the whole end line
716 // even if it contains text not in the folding range. To prevent that we exclude
717 // range.end.line from the folding region if there is more text after range.end
719 let has_more_text_on_end_line = text[TextRange::new(fold.range.end(), TextSize::of(text))]
721 .take_while(|it| *it != '\n')
722 .any(|it| !it.is_whitespace());
724 let end_line = if has_more_text_on_end_line {
725 range.end.line.saturating_sub(1)
730 lsp_types::FoldingRange {
731 start_line: range.start.line,
732 start_character: None,
738 lsp_types::FoldingRange {
739 start_line: range.start.line,
740 start_character: Some(range.start.character),
741 end_line: range.end.line,
742 end_character: Some(range.end.character),
748 pub(crate) fn url(snap: &GlobalStateSnapshot, file_id: FileId) -> lsp_types::Url {
749 snap.file_id_to_url(file_id)
752 /// Returns a `Url` object from a given path, will lowercase drive letters if present.
753 /// This will only happen when processing windows paths.
755 /// When processing non-windows path, this is essentially the same as `Url::from_file_path`.
756 pub(crate) fn url_from_abs_path(path: &AbsPath) -> lsp_types::Url {
757 let url = lsp_types::Url::from_file_path(path).unwrap();
758 match path.as_ref().components().next() {
759 Some(path::Component::Prefix(prefix))
760 if matches!(prefix.kind(), path::Prefix::Disk(_) | path::Prefix::VerbatimDisk(_)) =>
762 // Need to lowercase driver letter
767 let driver_letter_range = {
768 let (scheme, drive_letter, _rest) = match url.as_str().splitn(3, ':').collect_tuple() {
772 let start = scheme.len() + ':'.len_utf8();
773 start..(start + drive_letter.len())
776 // Note: lowercasing the `path` itself doesn't help, the `Url::parse`
777 // machinery *also* canonicalizes the drive letter. So, just massage the
779 let mut url: String = url.into();
780 url[driver_letter_range].make_ascii_lowercase();
781 lsp_types::Url::parse(&url).unwrap()
784 pub(crate) fn optional_versioned_text_document_identifier(
785 snap: &GlobalStateSnapshot,
787 ) -> lsp_types::OptionalVersionedTextDocumentIdentifier {
788 let url = url(snap, file_id);
789 let version = snap.url_file_version(&url);
790 lsp_types::OptionalVersionedTextDocumentIdentifier { uri: url, version }
793 pub(crate) fn location(
794 snap: &GlobalStateSnapshot,
796 ) -> Result<lsp_types::Location> {
797 let url = url(snap, frange.file_id);
798 let line_index = snap.file_line_index(frange.file_id)?;
799 let range = range(&line_index, frange.range);
800 let loc = lsp_types::Location::new(url, range);
804 /// Prefer using `location_link`, if the client has the cap.
805 pub(crate) fn location_from_nav(
806 snap: &GlobalStateSnapshot,
807 nav: NavigationTarget,
808 ) -> Result<lsp_types::Location> {
809 let url = url(snap, nav.file_id);
810 let line_index = snap.file_line_index(nav.file_id)?;
811 let range = range(&line_index, nav.full_range);
812 let loc = lsp_types::Location::new(url, range);
816 pub(crate) fn location_link(
817 snap: &GlobalStateSnapshot,
818 src: Option<FileRange>,
819 target: NavigationTarget,
820 ) -> Result<lsp_types::LocationLink> {
821 let origin_selection_range = match src {
823 let line_index = snap.file_line_index(src.file_id)?;
824 let range = range(&line_index, src.range);
829 let (target_uri, target_range, target_selection_range) = location_info(snap, target)?;
830 let res = lsp_types::LocationLink {
831 origin_selection_range,
834 target_selection_range,
840 snap: &GlobalStateSnapshot,
841 target: NavigationTarget,
842 ) -> Result<(lsp_types::Url, lsp_types::Range, lsp_types::Range)> {
843 let line_index = snap.file_line_index(target.file_id)?;
845 let target_uri = url(snap, target.file_id);
846 let target_range = range(&line_index, target.full_range);
847 let target_selection_range =
848 target.focus_range.map(|it| range(&line_index, it)).unwrap_or(target_range);
849 Ok((target_uri, target_range, target_selection_range))
852 pub(crate) fn goto_definition_response(
853 snap: &GlobalStateSnapshot,
854 src: Option<FileRange>,
855 targets: Vec<NavigationTarget>,
856 ) -> Result<lsp_types::GotoDefinitionResponse> {
857 if snap.config.location_link() {
860 .map(|nav| location_link(snap, src, nav))
861 .collect::<Result<Vec<_>>>()?;
864 let locations = targets
867 location(snap, FileRange { file_id: nav.file_id, range: nav.focus_or_full_range() })
869 .collect::<Result<Vec<_>>>()?;
874 fn outside_workspace_annotation_id() -> String {
875 String::from("OutsideWorkspace")
878 pub(crate) fn snippet_text_document_edit(
879 snap: &GlobalStateSnapshot,
883 ) -> Result<lsp_ext::SnippetTextDocumentEdit> {
884 let text_document = optional_versioned_text_document_identifier(snap, file_id);
885 let line_index = snap.file_line_index(file_id)?;
886 let mut edits: Vec<_> =
887 edit.into_iter().map(|it| snippet_text_edit(&line_index, is_snippet, it)).collect();
889 if snap.analysis.is_library_file(file_id)? && snap.config.change_annotation_support() {
890 for edit in &mut edits {
891 edit.annotation_id = Some(outside_workspace_annotation_id())
894 Ok(lsp_ext::SnippetTextDocumentEdit { text_document, edits })
897 pub(crate) fn snippet_text_document_ops(
898 snap: &GlobalStateSnapshot,
899 file_system_edit: FileSystemEdit,
900 ) -> Cancellable<Vec<lsp_ext::SnippetDocumentChangeOperation>> {
901 let mut ops = Vec::new();
902 match file_system_edit {
903 FileSystemEdit::CreateFile { dst, initial_contents } => {
904 let uri = snap.anchored_path(&dst);
905 let create_file = lsp_types::ResourceOp::Create(lsp_types::CreateFile {
910 ops.push(lsp_ext::SnippetDocumentChangeOperation::Op(create_file));
911 if !initial_contents.is_empty() {
913 lsp_types::OptionalVersionedTextDocumentIdentifier { uri, version: None };
914 let text_edit = lsp_ext::SnippetTextEdit {
915 range: lsp_types::Range::default(),
916 new_text: initial_contents,
917 insert_text_format: Some(lsp_types::InsertTextFormat::PLAIN_TEXT),
921 lsp_ext::SnippetTextDocumentEdit { text_document, edits: vec![text_edit] };
922 ops.push(lsp_ext::SnippetDocumentChangeOperation::Edit(edit_file));
925 FileSystemEdit::MoveFile { src, dst } => {
926 let old_uri = snap.file_id_to_url(src);
927 let new_uri = snap.anchored_path(&dst);
928 let mut rename_file =
929 lsp_types::RenameFile { old_uri, new_uri, options: None, annotation_id: None };
930 if snap.analysis.is_library_file(src).ok() == Some(true)
931 && snap.config.change_annotation_support()
933 rename_file.annotation_id = Some(outside_workspace_annotation_id())
935 ops.push(lsp_ext::SnippetDocumentChangeOperation::Op(lsp_types::ResourceOp::Rename(
939 FileSystemEdit::MoveDir { src, src_id, dst } => {
940 let old_uri = snap.anchored_path(&src);
941 let new_uri = snap.anchored_path(&dst);
942 let mut rename_file =
943 lsp_types::RenameFile { old_uri, new_uri, options: None, annotation_id: None };
944 if snap.analysis.is_library_file(src_id).ok() == Some(true)
945 && snap.config.change_annotation_support()
947 rename_file.annotation_id = Some(outside_workspace_annotation_id())
949 ops.push(lsp_ext::SnippetDocumentChangeOperation::Op(lsp_types::ResourceOp::Rename(
957 pub(crate) fn snippet_workspace_edit(
958 snap: &GlobalStateSnapshot,
959 source_change: SourceChange,
960 ) -> Result<lsp_ext::SnippetWorkspaceEdit> {
961 let mut document_changes: Vec<lsp_ext::SnippetDocumentChangeOperation> = Vec::new();
963 for op in source_change.file_system_edits {
964 let ops = snippet_text_document_ops(snap, op)?;
965 document_changes.extend_from_slice(&ops);
967 for (file_id, edit) in source_change.source_file_edits {
968 let edit = snippet_text_document_edit(snap, source_change.is_snippet, file_id, edit)?;
969 document_changes.push(lsp_ext::SnippetDocumentChangeOperation::Edit(edit));
971 let mut workspace_edit = lsp_ext::SnippetWorkspaceEdit {
973 document_changes: Some(document_changes),
974 change_annotations: None,
976 if snap.config.change_annotation_support() {
977 workspace_edit.change_annotations = Some(
979 outside_workspace_annotation_id(),
980 lsp_types::ChangeAnnotation {
981 label: String::from("Edit outside of the workspace"),
982 needs_confirmation: Some(true),
983 description: Some(String::from(
984 "This edit lies outside of the workspace and may affect dependencies",
994 pub(crate) fn workspace_edit(
995 snap: &GlobalStateSnapshot,
996 source_change: SourceChange,
997 ) -> Result<lsp_types::WorkspaceEdit> {
998 assert!(!source_change.is_snippet);
999 snippet_workspace_edit(snap, source_change).map(|it| it.into())
1002 impl From<lsp_ext::SnippetWorkspaceEdit> for lsp_types::WorkspaceEdit {
1003 fn from(snippet_workspace_edit: lsp_ext::SnippetWorkspaceEdit) -> lsp_types::WorkspaceEdit {
1004 lsp_types::WorkspaceEdit {
1006 document_changes: snippet_workspace_edit.document_changes.map(|changes| {
1007 lsp_types::DocumentChanges::Operations(
1010 .map(|change| match change {
1011 lsp_ext::SnippetDocumentChangeOperation::Op(op) => {
1012 lsp_types::DocumentChangeOperation::Op(op)
1014 lsp_ext::SnippetDocumentChangeOperation::Edit(edit) => {
1015 lsp_types::DocumentChangeOperation::Edit(
1016 lsp_types::TextDocumentEdit {
1017 text_document: edit.text_document,
1018 edits: edit.edits.into_iter().map(From::from).collect(),
1026 change_annotations: snippet_workspace_edit.change_annotations,
1031 impl From<lsp_ext::SnippetTextEdit>
1032 for lsp_types::OneOf<lsp_types::TextEdit, lsp_types::AnnotatedTextEdit>
1035 lsp_ext::SnippetTextEdit { annotation_id, insert_text_format:_, new_text, range }: lsp_ext::SnippetTextEdit,
1037 match annotation_id {
1038 Some(annotation_id) => lsp_types::OneOf::Right(lsp_types::AnnotatedTextEdit {
1039 text_edit: lsp_types::TextEdit { range, new_text },
1042 None => lsp_types::OneOf::Left(lsp_types::TextEdit { range, new_text }),
1047 pub(crate) fn call_hierarchy_item(
1048 snap: &GlobalStateSnapshot,
1049 target: NavigationTarget,
1050 ) -> Result<lsp_types::CallHierarchyItem> {
1051 let name = target.name.to_string();
1052 let detail = target.description.clone();
1053 let kind = target.kind.map(symbol_kind).unwrap_or(lsp_types::SymbolKind::FUNCTION);
1054 let (uri, range, selection_range) = location_info(snap, target)?;
1055 Ok(lsp_types::CallHierarchyItem {
1067 pub(crate) fn code_action_kind(kind: AssistKind) -> lsp_types::CodeActionKind {
1069 AssistKind::None | AssistKind::Generate => lsp_types::CodeActionKind::EMPTY,
1070 AssistKind::QuickFix => lsp_types::CodeActionKind::QUICKFIX,
1071 AssistKind::Refactor => lsp_types::CodeActionKind::REFACTOR,
1072 AssistKind::RefactorExtract => lsp_types::CodeActionKind::REFACTOR_EXTRACT,
1073 AssistKind::RefactorInline => lsp_types::CodeActionKind::REFACTOR_INLINE,
1074 AssistKind::RefactorRewrite => lsp_types::CodeActionKind::REFACTOR_REWRITE,
1078 pub(crate) fn code_action(
1079 snap: &GlobalStateSnapshot,
1081 resolve_data: Option<(usize, lsp_types::CodeActionParams)>,
1082 ) -> Result<lsp_ext::CodeAction> {
1083 let mut res = lsp_ext::CodeAction {
1084 title: assist.label.to_string(),
1085 group: assist.group.filter(|_| snap.config.code_action_group()).map(|gr| gr.0),
1086 kind: Some(code_action_kind(assist.id.1)),
1093 if assist.trigger_signature_help && snap.config.client_commands().trigger_parameter_hints {
1094 res.command = Some(command::trigger_parameter_hints());
1097 match (assist.source_change, resolve_data) {
1098 (Some(it), _) => res.edit = Some(snippet_workspace_edit(snap, it)?),
1099 (None, Some((index, code_action_params))) => {
1100 res.data = Some(lsp_ext::CodeActionData {
1101 id: format!("{}:{}:{}", assist.id.0, assist.id.1.name(), index),
1106 stdx::never!("assist should always be resolved if client can't do lazy resolving")
1112 pub(crate) fn runnable(
1113 snap: &GlobalStateSnapshot,
1115 ) -> Result<lsp_ext::Runnable> {
1116 let config = snap.config.runnables();
1117 let spec = CargoTargetSpec::for_file(snap, runnable.nav.file_id)?;
1118 let workspace_root = spec.as_ref().map(|it| it.workspace_root.clone());
1119 let target = spec.as_ref().map(|s| s.target.clone());
1120 let (cargo_args, executable_args) =
1121 CargoTargetSpec::runnable_args(snap, spec, &runnable.kind, &runnable.cfg)?;
1122 let label = runnable.label(target);
1123 let location = location_link(snap, None, runnable.nav)?;
1125 Ok(lsp_ext::Runnable {
1127 location: Some(location),
1128 kind: lsp_ext::RunnableKind::Cargo,
1129 args: lsp_ext::CargoRunnable {
1130 workspace_root: workspace_root.map(|it| it.into()),
1131 override_cargo: config.override_cargo,
1133 cargo_extra_args: config.cargo_extra_args,
1140 pub(crate) fn code_lens(
1141 acc: &mut Vec<lsp_types::CodeLens>,
1142 snap: &GlobalStateSnapshot,
1143 annotation: Annotation,
1145 let client_commands_config = snap.config.client_commands();
1146 match annotation.kind {
1147 AnnotationKind::Runnable(run) => {
1148 let line_index = snap.file_line_index(run.nav.file_id)?;
1149 let annotation_range = range(&line_index, annotation.range);
1151 let title = run.title();
1152 let can_debug = match run.kind {
1153 ide::RunnableKind::DocTest { .. } => false,
1154 ide::RunnableKind::TestMod { .. }
1155 | ide::RunnableKind::Test { .. }
1156 | ide::RunnableKind::Bench { .. }
1157 | ide::RunnableKind::Bin => true,
1159 let r = runnable(snap, run)?;
1161 let lens_config = snap.config.lens();
1162 if lens_config.run && client_commands_config.run_single {
1163 let command = command::run_single(&r, &title);
1164 acc.push(lsp_types::CodeLens {
1165 range: annotation_range,
1166 command: Some(command),
1170 if lens_config.debug && can_debug && client_commands_config.debug_single {
1171 let command = command::debug_single(&r);
1172 acc.push(lsp_types::CodeLens {
1173 range: annotation_range,
1174 command: Some(command),
1179 AnnotationKind::HasImpls { file_id, data } => {
1180 if !client_commands_config.show_reference {
1183 let line_index = snap.file_line_index(file_id)?;
1184 let annotation_range = range(&line_index, annotation.range);
1185 let url = url(snap, file_id);
1187 let id = lsp_types::TextDocumentIdentifier { uri: url.clone() };
1189 let doc_pos = lsp_types::TextDocumentPositionParams::new(id, annotation_range.start);
1191 let goto_params = lsp_types::request::GotoImplementationParams {
1192 text_document_position_params: doc_pos,
1193 work_done_progress_params: Default::default(),
1194 partial_result_params: Default::default(),
1197 let command = data.map(|ranges| {
1198 let locations: Vec<lsp_types::Location> = ranges
1200 .filter_map(|target| {
1203 FileRange { file_id: target.file_id, range: target.full_range },
1209 command::show_references(
1210 implementation_title(locations.len()),
1212 annotation_range.start,
1217 acc.push(lsp_types::CodeLens {
1218 range: annotation_range,
1220 data: Some(to_value(lsp_ext::CodeLensResolveData::Impls(goto_params)).unwrap()),
1223 AnnotationKind::HasReferences { file_id, data } => {
1224 if !client_commands_config.show_reference {
1227 let line_index = snap.file_line_index(file_id)?;
1228 let annotation_range = range(&line_index, annotation.range);
1229 let url = url(snap, file_id);
1231 let id = lsp_types::TextDocumentIdentifier { uri: url.clone() };
1233 let doc_pos = lsp_types::TextDocumentPositionParams::new(id, annotation_range.start);
1235 let command = data.map(|ranges| {
1236 let locations: Vec<lsp_types::Location> =
1237 ranges.into_iter().filter_map(|range| location(snap, range).ok()).collect();
1239 command::show_references(
1240 reference_title(locations.len()),
1242 annotation_range.start,
1247 acc.push(lsp_types::CodeLens {
1248 range: annotation_range,
1250 data: Some(to_value(lsp_ext::CodeLensResolveData::References(doc_pos)).unwrap()),
1257 pub(crate) mod command {
1258 use ide::{FileRange, NavigationTarget};
1259 use serde_json::to_value;
1262 global_state::GlobalStateSnapshot,
1264 to_proto::{location, location_link},
1267 pub(crate) fn show_references(
1269 uri: &lsp_types::Url,
1270 position: lsp_types::Position,
1271 locations: Vec<lsp_types::Location>,
1272 ) -> lsp_types::Command {
1273 // We cannot use the 'editor.action.showReferences' command directly
1274 // because that command requires vscode types which we convert in the handler
1275 // on the client side.
1277 lsp_types::Command {
1279 command: "rust-analyzer.showReferences".into(),
1280 arguments: Some(vec![
1281 to_value(uri).unwrap(),
1282 to_value(position).unwrap(),
1283 to_value(locations).unwrap(),
1288 pub(crate) fn run_single(runnable: &lsp_ext::Runnable, title: &str) -> lsp_types::Command {
1289 lsp_types::Command {
1290 title: title.to_string(),
1291 command: "rust-analyzer.runSingle".into(),
1292 arguments: Some(vec![to_value(runnable).unwrap()]),
1296 pub(crate) fn debug_single(runnable: &lsp_ext::Runnable) -> lsp_types::Command {
1297 lsp_types::Command {
1298 title: "Debug".into(),
1299 command: "rust-analyzer.debugSingle".into(),
1300 arguments: Some(vec![to_value(runnable).unwrap()]),
1304 pub(crate) fn goto_location(
1305 snap: &GlobalStateSnapshot,
1306 nav: &NavigationTarget,
1307 ) -> Option<lsp_types::Command> {
1308 let value = if snap.config.location_link() {
1309 let link = location_link(snap, None, nav.clone()).ok()?;
1310 to_value(link).ok()?
1312 let range = FileRange { file_id: nav.file_id, range: nav.focus_or_full_range() };
1313 let location = location(snap, range).ok()?;
1314 to_value(location).ok()?
1317 Some(lsp_types::Command {
1318 title: nav.name.to_string(),
1319 command: "rust-analyzer.gotoLocation".into(),
1320 arguments: Some(vec![value]),
1324 pub(crate) fn trigger_parameter_hints() -> lsp_types::Command {
1325 lsp_types::Command {
1326 title: "triggerParameterHints".into(),
1327 command: "editor.action.triggerParameterHints".into(),
1333 pub(crate) fn implementation_title(count: usize) -> String {
1335 "1 implementation".into()
1337 format!("{} implementations", count)
1341 pub(crate) fn reference_title(count: usize) -> String {
1343 "1 reference".into()
1345 format!("{} references", count)
1349 pub(crate) fn markup_content(
1351 kind: ide::HoverDocFormat,
1352 ) -> lsp_types::MarkupContent {
1353 let kind = match kind {
1354 ide::HoverDocFormat::Markdown => lsp_types::MarkupKind::Markdown,
1355 ide::HoverDocFormat::PlainText => lsp_types::MarkupKind::PlainText,
1357 let value = crate::markdown::format_docs(markup.as_str());
1358 lsp_types::MarkupContent { kind, value }
1361 pub(crate) fn rename_error(err: RenameError) -> crate::LspError {
1362 // This is wrong, but we don't have a better alternative I suppose?
1363 // https://github.com/microsoft/language-server-protocol/issues/1341
1364 invalid_params_error(err.to_string())
1376 fn conv_fold_line_folding_only_fixup() {
1377 let text = r#"mod a;
1389 let (analysis, file_id) = Analysis::from_single_file(text.to_string());
1390 let folds = analysis.folding_ranges(file_id).unwrap();
1391 assert_eq!(folds.len(), 4);
1393 let line_index = LineIndex {
1394 index: Arc::new(ide::LineIndex::new(text)),
1395 endings: LineEndings::Unix,
1396 encoding: OffsetEncoding::Utf16,
1398 let converted: Vec<lsp_types::FoldingRange> =
1399 folds.into_iter().map(|it| folding_range(text, &line_index, true, it)).collect();
1401 let expected_lines = [(0, 2), (4, 10), (5, 6), (7, 9)];
1402 assert_eq!(converted.len(), expected_lines.len());
1403 for (folding_range, (start_line, end_line)) in converted.iter().zip(expected_lines.iter()) {
1404 assert_eq!(folding_range.start_line, *start_line);
1405 assert_eq!(folding_range.start_character, None);
1406 assert_eq!(folding_range.end_line, *end_line);
1407 assert_eq!(folding_range.end_character, None);
1411 // `Url` is not able to parse windows paths on unix machines.
1413 #[cfg(target_os = "windows")]
1414 fn test_lowercase_drive_letter() {
1415 use std::path::Path;
1417 let url = url_from_abs_path(Path::new("C:\\Test").try_into().unwrap());
1418 assert_eq!(url.to_string(), "file:///c:/Test");
1420 let url = url_from_abs_path(Path::new(r#"\\localhost\C$\my_dir"#).try_into().unwrap());
1421 assert_eq!(url.to_string(), "file://localhost/C$/my_dir");