1 //! FIXME: write short doc here
7 AssocItem, Documentation, FieldSource, HasAttrs, HasSource, HirDisplay, InFile, ModuleSource,
11 base_db::{FileId, FileRange},
12 symbol_index::FileSymbolKind,
15 use ide_db::{defs::Definition, RootDatabase};
17 ast::{self, NameOwner},
18 match_ast, AstNode, SmolStr, TextRange,
21 use crate::FileSymbol;
23 /// `NavigationTarget` represents and element in the editor's UI which you can
24 /// click on to navigate to a particular piece of code.
26 /// Typically, a `NavigationTarget` corresponds to some element in the source
27 /// code, like a function or a struct, but this is not strictly required.
28 #[derive(Clone, PartialEq, Eq, Hash)]
29 pub struct NavigationTarget {
31 /// Range which encompasses the whole element.
33 /// Should include body, doc comments, attributes, etc.
35 /// Clients should use this range to answer "is the cursor inside the
36 /// element?" question.
37 pub full_range: TextRange,
38 /// A "most interesting" range withing the `full_range`.
40 /// Typically, `full_range` is the whole syntax node, including doc
41 /// comments, and `focus_range` is the range of the identifier. "Most
42 /// interesting" range within the full range, typically the range of
45 /// Clients should place the cursor on this range when navigating to this target.
46 pub focus_range: Option<TextRange>,
48 pub kind: Option<SymbolKind>,
49 pub container_name: Option<SmolStr>,
50 pub description: Option<String>,
51 pub docs: Option<Documentation>,
54 impl fmt::Debug for NavigationTarget {
55 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
56 let mut f = f.debug_struct("NavigationTarget");
58 ($($name:ident)*) => {$(
59 if let Some(it) = &self.$name {
60 f.field(stringify!($name), it);
64 f.field("file_id", &self.file_id).field("full_range", &self.full_range);
66 f.field("name", &self.name);
67 opt!(kind container_name description docs);
72 pub(crate) trait ToNav {
73 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget;
76 pub(crate) trait TryToNav {
77 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget>;
80 impl NavigationTarget {
81 pub fn focus_or_full_range(&self) -> TextRange {
82 self.focus_range.unwrap_or(self.full_range)
85 pub(crate) fn from_module_to_decl(db: &RootDatabase, module: hir::Module) -> NavigationTarget {
86 let name = module.name(db).map(|it| it.to_string().into()).unwrap_or_default();
87 if let Some(src) = module.declaration_source(db) {
88 let node = src.as_ref().map(|it| it.syntax());
89 let full_range = node.original_file_range(db);
93 .map(|name| src.with_value(name.syntax()).original_file_range(db).range);
94 let mut res = NavigationTarget::from_syntax(
101 res.docs = module.attrs(db).docs();
102 res.description = Some(module.display(db).to_string());
109 pub(crate) fn assert_match(&self, expected: &str) {
110 let actual = self.debug_render();
111 test_utils::assert_eq_text!(expected.trim(), actual.trim(),);
115 pub(crate) fn debug_render(&self) -> String {
116 let mut buf = format!(
123 if let Some(focus_range) = self.focus_range {
124 buf.push_str(&format!(" {:?}", focus_range))
126 if let Some(container_name) = &self.container_name {
127 buf.push_str(&format!(" {}", container_name))
132 /// Allows `NavigationTarget` to be created from a `NameOwner`
133 pub(crate) fn from_named(
135 node: InFile<&dyn ast::NameOwner>,
137 ) -> NavigationTarget {
138 let name = node.value.name().map(|it| it.text().into()).unwrap_or_else(|| "_".into());
140 node.value.name().map(|it| node.with_value(it.syntax()).original_file_range(db).range);
141 let frange = node.map(|it| it.syntax()).original_file_range(db);
143 NavigationTarget::from_syntax(frange.file_id, name, focus_range, frange.range, kind)
149 focus_range: Option<TextRange>,
150 full_range: TextRange,
152 ) -> NavigationTarget {
159 container_name: None,
166 impl ToNav for FileSymbol {
167 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
169 file_id: self.file_id,
170 name: self.name.clone(),
171 kind: Some(match self.kind {
172 FileSymbolKind::Function => SymbolKind::Function,
173 FileSymbolKind::Struct => SymbolKind::Struct,
174 FileSymbolKind::Enum => SymbolKind::Enum,
175 FileSymbolKind::Trait => SymbolKind::Trait,
176 FileSymbolKind::Module => SymbolKind::Module,
177 FileSymbolKind::TypeAlias => SymbolKind::TypeAlias,
178 FileSymbolKind::Const => SymbolKind::Const,
179 FileSymbolKind::Static => SymbolKind::Static,
180 FileSymbolKind::Macro => SymbolKind::Macro,
181 FileSymbolKind::Union => SymbolKind::Union,
183 full_range: self.range,
184 focus_range: self.name_range,
185 container_name: self.container_name.clone(),
186 description: description_from_symbol(db, self),
192 impl TryToNav for Definition {
193 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
195 Definition::Macro(it) => it.try_to_nav(db),
196 Definition::Field(it) => it.try_to_nav(db),
197 Definition::ModuleDef(it) => it.try_to_nav(db),
198 Definition::SelfType(it) => it.try_to_nav(db),
199 Definition::Local(it) => Some(it.to_nav(db)),
200 Definition::GenericParam(it) => it.try_to_nav(db),
201 Definition::Label(it) => Some(it.to_nav(db)),
206 impl TryToNav for hir::ModuleDef {
207 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
209 hir::ModuleDef::Module(it) => Some(it.to_nav(db)),
210 hir::ModuleDef::Function(it) => it.try_to_nav(db),
211 hir::ModuleDef::Adt(it) => it.try_to_nav(db),
212 hir::ModuleDef::Variant(it) => it.try_to_nav(db),
213 hir::ModuleDef::Const(it) => it.try_to_nav(db),
214 hir::ModuleDef::Static(it) => it.try_to_nav(db),
215 hir::ModuleDef::Trait(it) => it.try_to_nav(db),
216 hir::ModuleDef::TypeAlias(it) => it.try_to_nav(db),
217 hir::ModuleDef::BuiltinType(_) => None,
222 pub(crate) trait ToNavFromAst {
223 const KIND: SymbolKind;
225 impl ToNavFromAst for hir::Function {
226 const KIND: SymbolKind = SymbolKind::Function;
228 impl ToNavFromAst for hir::Const {
229 const KIND: SymbolKind = SymbolKind::Const;
231 impl ToNavFromAst for hir::Static {
232 const KIND: SymbolKind = SymbolKind::Static;
234 impl ToNavFromAst for hir::Struct {
235 const KIND: SymbolKind = SymbolKind::Struct;
237 impl ToNavFromAst for hir::Enum {
238 const KIND: SymbolKind = SymbolKind::Enum;
240 impl ToNavFromAst for hir::Variant {
241 const KIND: SymbolKind = SymbolKind::Variant;
243 impl ToNavFromAst for hir::Union {
244 const KIND: SymbolKind = SymbolKind::Union;
246 impl ToNavFromAst for hir::TypeAlias {
247 const KIND: SymbolKind = SymbolKind::TypeAlias;
249 impl ToNavFromAst for hir::Trait {
250 const KIND: SymbolKind = SymbolKind::Trait;
253 impl<D> TryToNav for D
255 D: HasSource + ToNavFromAst + Copy + HasAttrs + HirDisplay,
256 D::Ast: ast::NameOwner,
258 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
259 let src = self.source(db)?;
260 let mut res = NavigationTarget::from_named(
262 src.as_ref().map(|it| it as &dyn ast::NameOwner),
265 res.docs = self.docs(db);
266 res.description = Some(self.display(db).to_string());
271 impl ToNav for hir::Module {
272 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
273 let src = self.definition_source(db);
274 let name = self.name(db).map(|it| it.to_string().into()).unwrap_or_default();
275 let (syntax, focus) = match &src.value {
276 ModuleSource::SourceFile(node) => (node.syntax(), None),
277 ModuleSource::Module(node) => {
278 (node.syntax(), node.name().map(|it| it.syntax().text_range()))
280 ModuleSource::BlockExpr(node) => (node.syntax(), None),
282 let frange = src.with_value(syntax).original_file_range(db);
283 NavigationTarget::from_syntax(frange.file_id, name, focus, frange.range, SymbolKind::Module)
287 impl TryToNav for hir::Impl {
288 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
289 let src = self.source(db)?;
290 let derive_attr = self.is_builtin_derive(db);
291 let frange = if let Some(item) = &derive_attr {
292 item.syntax().original_file_range(db)
294 src.as_ref().map(|it| it.syntax()).original_file_range(db)
296 let focus_range = if derive_attr.is_some() {
299 src.value.self_ty().map(|ty| src.with_value(ty.syntax()).original_file_range(db).range)
302 Some(NavigationTarget::from_syntax(
312 impl TryToNav for hir::Field {
313 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
314 let src = self.source(db)?;
316 let field_source = match &src.value {
317 FieldSource::Named(it) => {
319 NavigationTarget::from_named(db, src.with_value(it), SymbolKind::Field);
320 res.docs = self.docs(db);
321 res.description = Some(self.display(db).to_string());
324 FieldSource::Pos(it) => {
325 let frange = src.with_value(it.syntax()).original_file_range(db);
326 NavigationTarget::from_syntax(
339 impl TryToNav for hir::MacroDef {
340 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
341 let src = self.source(db)?;
342 let name_owner: &dyn ast::NameOwner = match &src.value {
343 Either::Left(it) => it,
344 Either::Right(it) => it,
346 log::debug!("nav target {:#?}", name_owner.syntax());
347 let mut res = NavigationTarget::from_named(
349 src.as_ref().with_value(name_owner),
352 res.docs = self.docs(db);
357 impl TryToNav for hir::Adt {
358 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
360 hir::Adt::Struct(it) => it.try_to_nav(db),
361 hir::Adt::Union(it) => it.try_to_nav(db),
362 hir::Adt::Enum(it) => it.try_to_nav(db),
367 impl TryToNav for hir::AssocItem {
368 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
370 AssocItem::Function(it) => it.try_to_nav(db),
371 AssocItem::Const(it) => it.try_to_nav(db),
372 AssocItem::TypeAlias(it) => it.try_to_nav(db),
377 impl TryToNav for hir::GenericParam {
378 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
380 hir::GenericParam::TypeParam(it) => it.try_to_nav(db),
381 hir::GenericParam::ConstParam(it) => it.try_to_nav(db),
382 hir::GenericParam::LifetimeParam(it) => it.try_to_nav(db),
387 impl ToNav for hir::Local {
388 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
389 let src = self.source(db);
390 let (node, name) = match &src.value {
391 Either::Left(bind_pat) => (bind_pat.syntax().clone(), bind_pat.name()),
392 Either::Right(it) => (it.syntax().clone(), it.name()),
395 name.map(|it| src.with_value(&it.syntax().clone()).original_file_range(db).range);
397 let full_range = src.with_value(&node).original_file_range(db);
398 let name = match self.name(db) {
399 Some(it) => it.to_string().into(),
402 let kind = if self.is_self(db) {
403 SymbolKind::SelfParam
404 } else if self.is_param(db) {
405 SymbolKind::ValueParam
410 file_id: full_range.file_id,
413 full_range: full_range.range,
415 container_name: None,
422 impl ToNav for hir::Label {
423 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
424 let src = self.source(db);
425 let node = src.value.syntax();
426 let FileRange { file_id, range } = src.with_value(node).original_file_range(db);
428 src.value.lifetime().and_then(|lt| lt.lifetime_ident_token()).map(|lt| lt.text_range());
429 let name = self.name(db).to_string().into();
433 kind: Some(SymbolKind::Label),
436 container_name: None,
443 impl TryToNav for hir::TypeParam {
444 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
445 let src = self.source(db)?;
446 let full_range = match &src.value {
447 Either::Left(it) => it
449 .map_or_else(|| it.syntax().text_range(), |name| name.syntax().text_range()),
450 Either::Right(it) => it.syntax().text_range(),
452 let focus_range = match &src.value {
453 Either::Left(it) => it.name(),
454 Either::Right(it) => it.name(),
456 .map(|it| it.syntax().text_range());
457 Some(NavigationTarget {
458 file_id: src.file_id.original_file(db),
459 name: self.name(db).to_string().into(),
460 kind: Some(SymbolKind::TypeParam),
463 container_name: None,
470 impl TryToNav for hir::LifetimeParam {
471 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
472 let src = self.source(db)?;
473 let full_range = src.value.syntax().text_range();
474 Some(NavigationTarget {
475 file_id: src.file_id.original_file(db),
476 name: self.name(db).to_string().into(),
477 kind: Some(SymbolKind::LifetimeParam),
479 focus_range: Some(full_range),
480 container_name: None,
487 impl TryToNav for hir::ConstParam {
488 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
489 let src = self.source(db)?;
490 let full_range = src.value.syntax().text_range();
491 Some(NavigationTarget {
492 file_id: src.file_id.original_file(db),
493 name: self.name(db).to_string().into(),
494 kind: Some(SymbolKind::ConstParam),
496 focus_range: src.value.name().map(|n| n.syntax().text_range()),
497 container_name: None,
504 /// Get a description of a symbol.
506 /// e.g. `struct Name`, `enum Name`, `fn Name`
507 pub(crate) fn description_from_symbol(db: &RootDatabase, symbol: &FileSymbol) -> Option<String> {
508 let sema = Semantics::new(db);
509 let parse = sema.parse(symbol.file_id);
510 let node = symbol.ptr.to_node(parse.syntax());
514 ast::Fn(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
515 ast::Struct(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
516 ast::Enum(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
517 ast::Trait(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
518 ast::Module(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
519 ast::TypeAlias(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
520 ast::Const(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
521 ast::Static(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
522 ast::RecordField(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
523 ast::Variant(it) => sema.to_def(&it).map(|it| it.display(db).to_string()),
531 use expect_test::expect;
533 use crate::{fixture, Query};
536 fn test_nav_for_symbol() {
537 let (analysis, _) = fixture::file(
540 fn foo() { enum FooInner { } }
544 let navs = analysis.symbol_search(Query::new("FooInner".to_string())).unwrap();
555 description: "enum FooInner",
565 container_name: "foo",
566 description: "enum FooInner",
570 .assert_debug_eq(&navs);
574 fn test_world_symbols_are_case_sensitive() {
575 let (analysis, _) = fixture::file(
582 let navs = analysis.symbol_search(Query::new("foo".to_string())).unwrap();
583 assert_eq!(navs.len(), 2)