1 //! FIXME: write short doc here
6 use hir::{AssocItem, Documentation, FieldSource, HasAttrs, HasSource, InFile, ModuleSource};
8 base_db::{FileId, FileRange, SourceDatabase},
9 symbol_index::FileSymbolKind,
12 use ide_db::{defs::Definition, RootDatabase};
14 ast::{self, NameOwner},
15 match_ast, AstNode, SmolStr, TextRange,
18 use crate::FileSymbol;
20 use super::short_label::ShortLabel;
22 /// `NavigationTarget` represents and element in the editor's UI which you can
23 /// click on to navigate to a particular piece of code.
25 /// Typically, a `NavigationTarget` corresponds to some element in the source
26 /// code, like a function or a struct, but this is not strictly required.
27 #[derive(Clone, PartialEq, Eq, Hash)]
28 pub struct NavigationTarget {
30 /// Range which encompasses the whole element.
32 /// Should include body, doc comments, attributes, etc.
34 /// Clients should use this range to answer "is the cursor inside the
35 /// element?" question.
36 pub full_range: TextRange,
37 /// A "most interesting" range withing the `full_range`.
39 /// Typically, `full_range` is the whole syntax node, including doc
40 /// comments, and `focus_range` is the range of the identifier. "Most
41 /// interesting" range within the full range, typically the range of
44 /// Clients should place the cursor on this range when navigating to this target.
45 pub focus_range: Option<TextRange>,
47 pub kind: Option<SymbolKind>,
48 pub container_name: Option<SmolStr>,
49 pub description: Option<String>,
50 pub docs: Option<Documentation>,
53 impl fmt::Debug for NavigationTarget {
54 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
55 let mut f = f.debug_struct("NavigationTarget");
57 ($($name:ident)*) => {$(
58 if let Some(it) = &self.$name {
59 f.field(stringify!($name), it);
63 f.field("file_id", &self.file_id).field("full_range", &self.full_range);
65 f.field("name", &self.name);
66 opt!(kind container_name description docs);
71 pub(crate) trait ToNav {
72 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget;
75 pub(crate) trait TryToNav {
76 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget>;
79 impl NavigationTarget {
80 pub fn focus_or_full_range(&self) -> TextRange {
81 self.focus_range.unwrap_or(self.full_range)
84 pub(crate) fn from_module_to_decl(db: &RootDatabase, module: hir::Module) -> NavigationTarget {
85 let name = module.name(db).map(|it| it.to_string().into()).unwrap_or_default();
86 if let Some(src) = module.declaration_source(db) {
87 let node = src.as_ref().map(|it| it.syntax());
88 let full_range = node.original_file_range(db);
92 .map(|name| src.with_value(name.syntax()).original_file_range(db).range);
93 let mut res = NavigationTarget::from_syntax(
100 res.docs = module.attrs(db).docs();
101 res.description = src.value.short_label();
108 pub(crate) fn assert_match(&self, expected: &str) {
109 let actual = self.debug_render();
110 test_utils::assert_eq_text!(expected.trim(), actual.trim(),);
114 pub(crate) fn debug_render(&self) -> String {
115 let mut buf = format!(
122 if let Some(focus_range) = self.focus_range {
123 buf.push_str(&format!(" {:?}", focus_range))
125 if let Some(container_name) = &self.container_name {
126 buf.push_str(&format!(" {}", container_name))
131 /// Allows `NavigationTarget` to be created from a `NameOwner`
132 pub(crate) fn from_named(
134 node: InFile<&dyn ast::NameOwner>,
136 ) -> NavigationTarget {
137 let name = node.value.name().map(|it| it.text().into()).unwrap_or_else(|| "_".into());
139 node.value.name().map(|it| node.with_value(it.syntax()).original_file_range(db).range);
140 let frange = node.map(|it| it.syntax()).original_file_range(db);
142 NavigationTarget::from_syntax(frange.file_id, name, focus_range, frange.range, kind)
148 focus_range: Option<TextRange>,
149 full_range: TextRange,
151 ) -> NavigationTarget {
158 container_name: None,
165 impl ToNav for FileSymbol {
166 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
168 file_id: self.file_id,
169 name: self.name.clone(),
170 kind: Some(match self.kind {
171 FileSymbolKind::Function => SymbolKind::Function,
172 FileSymbolKind::Struct => SymbolKind::Struct,
173 FileSymbolKind::Enum => SymbolKind::Enum,
174 FileSymbolKind::Trait => SymbolKind::Trait,
175 FileSymbolKind::Module => SymbolKind::Module,
176 FileSymbolKind::TypeAlias => SymbolKind::TypeAlias,
177 FileSymbolKind::Const => SymbolKind::Const,
178 FileSymbolKind::Static => SymbolKind::Static,
179 FileSymbolKind::Macro => SymbolKind::Macro,
180 FileSymbolKind::Union => SymbolKind::Union,
182 full_range: self.range,
183 focus_range: self.name_range,
184 container_name: self.container_name.clone(),
185 description: description_from_symbol(db, self),
191 impl TryToNav for Definition {
192 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
194 Definition::Macro(it) => it.try_to_nav(db),
195 Definition::Field(it) => it.try_to_nav(db),
196 Definition::ModuleDef(it) => it.try_to_nav(db),
197 Definition::SelfType(it) => it.try_to_nav(db),
198 Definition::Local(it) => Some(it.to_nav(db)),
199 Definition::GenericParam(it) => it.try_to_nav(db),
200 Definition::Label(it) => Some(it.to_nav(db)),
205 impl TryToNav for hir::ModuleDef {
206 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
208 hir::ModuleDef::Module(it) => Some(it.to_nav(db)),
209 hir::ModuleDef::Function(it) => it.try_to_nav(db),
210 hir::ModuleDef::Adt(it) => it.try_to_nav(db),
211 hir::ModuleDef::Variant(it) => it.try_to_nav(db),
212 hir::ModuleDef::Const(it) => it.try_to_nav(db),
213 hir::ModuleDef::Static(it) => it.try_to_nav(db),
214 hir::ModuleDef::Trait(it) => it.try_to_nav(db),
215 hir::ModuleDef::TypeAlias(it) => it.try_to_nav(db),
216 hir::ModuleDef::BuiltinType(_) => None,
221 pub(crate) trait ToNavFromAst {
222 const KIND: SymbolKind;
224 impl ToNavFromAst for hir::Function {
225 const KIND: SymbolKind = SymbolKind::Function;
227 impl ToNavFromAst for hir::Const {
228 const KIND: SymbolKind = SymbolKind::Const;
230 impl ToNavFromAst for hir::Static {
231 const KIND: SymbolKind = SymbolKind::Static;
233 impl ToNavFromAst for hir::Struct {
234 const KIND: SymbolKind = SymbolKind::Struct;
236 impl ToNavFromAst for hir::Enum {
237 const KIND: SymbolKind = SymbolKind::Enum;
239 impl ToNavFromAst for hir::Variant {
240 const KIND: SymbolKind = SymbolKind::Variant;
242 impl ToNavFromAst for hir::Union {
243 const KIND: SymbolKind = SymbolKind::Union;
245 impl ToNavFromAst for hir::TypeAlias {
246 const KIND: SymbolKind = SymbolKind::TypeAlias;
248 impl ToNavFromAst for hir::Trait {
249 const KIND: SymbolKind = SymbolKind::Trait;
252 impl<D> TryToNav for D
254 D: HasSource + ToNavFromAst + Copy + HasAttrs,
255 D::Ast: ast::NameOwner + ShortLabel,
257 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
258 let src = self.source(db)?;
259 let mut res = NavigationTarget::from_named(
261 src.as_ref().map(|it| it as &dyn ast::NameOwner),
264 res.docs = self.docs(db);
265 res.description = src.value.short_label();
270 impl ToNav for hir::Module {
271 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
272 let src = self.definition_source(db);
273 let name = self.name(db).map(|it| it.to_string().into()).unwrap_or_default();
274 let (syntax, focus) = match &src.value {
275 ModuleSource::SourceFile(node) => (node.syntax(), None),
276 ModuleSource::Module(node) => {
277 (node.syntax(), node.name().map(|it| it.syntax().text_range()))
279 ModuleSource::BlockExpr(node) => (node.syntax(), None),
281 let frange = src.with_value(syntax).original_file_range(db);
282 NavigationTarget::from_syntax(frange.file_id, name, focus, frange.range, SymbolKind::Module)
286 impl TryToNav for hir::Impl {
287 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
288 let src = self.source(db)?;
289 let derive_attr = self.is_builtin_derive(db);
290 let frange = if let Some(item) = &derive_attr {
291 item.syntax().original_file_range(db)
293 src.as_ref().map(|it| it.syntax()).original_file_range(db)
295 let focus_range = if derive_attr.is_some() {
298 src.value.self_ty().map(|ty| src.with_value(ty.syntax()).original_file_range(db).range)
301 Some(NavigationTarget::from_syntax(
311 impl TryToNav for hir::Field {
312 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
313 let src = self.source(db)?;
315 let field_source = match &src.value {
316 FieldSource::Named(it) => {
318 NavigationTarget::from_named(db, src.with_value(it), SymbolKind::Field);
319 res.docs = self.docs(db);
320 res.description = it.short_label();
323 FieldSource::Pos(it) => {
324 let frange = src.with_value(it.syntax()).original_file_range(db);
325 NavigationTarget::from_syntax(
338 impl TryToNav for hir::MacroDef {
339 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
340 let src = self.source(db)?;
341 log::debug!("nav target {:#?}", src.value.syntax());
342 let mut res = NavigationTarget::from_named(
344 src.as_ref().map(|it| it as &dyn ast::NameOwner),
347 res.docs = self.docs(db);
352 impl TryToNav for hir::Adt {
353 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
355 hir::Adt::Struct(it) => it.try_to_nav(db),
356 hir::Adt::Union(it) => it.try_to_nav(db),
357 hir::Adt::Enum(it) => it.try_to_nav(db),
362 impl TryToNav for hir::AssocItem {
363 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
365 AssocItem::Function(it) => it.try_to_nav(db),
366 AssocItem::Const(it) => it.try_to_nav(db),
367 AssocItem::TypeAlias(it) => it.try_to_nav(db),
372 impl TryToNav for hir::GenericParam {
373 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
375 hir::GenericParam::TypeParam(it) => it.try_to_nav(db),
376 hir::GenericParam::ConstParam(it) => it.try_to_nav(db),
377 hir::GenericParam::LifetimeParam(it) => it.try_to_nav(db),
382 impl ToNav for hir::Local {
383 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
384 let src = self.source(db);
385 let (node, name) = match &src.value {
386 Either::Left(bind_pat) => (bind_pat.syntax().clone(), bind_pat.name()),
387 Either::Right(it) => (it.syntax().clone(), it.name()),
390 name.map(|it| src.with_value(&it.syntax().clone()).original_file_range(db).range);
392 let full_range = src.with_value(&node).original_file_range(db);
393 let name = match self.name(db) {
394 Some(it) => it.to_string().into(),
397 let kind = if self.is_self(db) {
398 SymbolKind::SelfParam
399 } else if self.is_param(db) {
400 SymbolKind::ValueParam
405 file_id: full_range.file_id,
408 full_range: full_range.range,
410 container_name: None,
417 impl ToNav for hir::Label {
418 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
419 let src = self.source(db);
420 let node = src.value.syntax();
421 let FileRange { file_id, range } = src.with_value(node).original_file_range(db);
423 src.value.lifetime().and_then(|lt| lt.lifetime_ident_token()).map(|lt| lt.text_range());
424 let name = self.name(db).to_string().into();
428 kind: Some(SymbolKind::Label),
431 container_name: None,
438 impl TryToNav for hir::TypeParam {
439 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
440 let src = self.source(db)?;
441 let full_range = match &src.value {
442 Either::Left(it) => it
444 .map_or_else(|| it.syntax().text_range(), |name| name.syntax().text_range()),
445 Either::Right(it) => it.syntax().text_range(),
447 let focus_range = match &src.value {
448 Either::Left(it) => it.name(),
449 Either::Right(it) => it.name(),
451 .map(|it| it.syntax().text_range());
452 Some(NavigationTarget {
453 file_id: src.file_id.original_file(db),
454 name: self.name(db).to_string().into(),
455 kind: Some(SymbolKind::TypeParam),
458 container_name: None,
465 impl TryToNav for hir::LifetimeParam {
466 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
467 let src = self.source(db)?;
468 let full_range = src.value.syntax().text_range();
469 Some(NavigationTarget {
470 file_id: src.file_id.original_file(db),
471 name: self.name(db).to_string().into(),
472 kind: Some(SymbolKind::LifetimeParam),
474 focus_range: Some(full_range),
475 container_name: None,
482 impl TryToNav for hir::ConstParam {
483 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
484 let src = self.source(db)?;
485 let full_range = src.value.syntax().text_range();
486 Some(NavigationTarget {
487 file_id: src.file_id.original_file(db),
488 name: self.name(db).to_string().into(),
489 kind: Some(SymbolKind::ConstParam),
491 focus_range: src.value.name().map(|n| n.syntax().text_range()),
492 container_name: None,
499 /// Get a description of a symbol.
501 /// e.g. `struct Name`, `enum Name`, `fn Name`
502 pub(crate) fn description_from_symbol(db: &RootDatabase, symbol: &FileSymbol) -> Option<String> {
503 let parse = db.parse(symbol.file_id);
504 let node = symbol.ptr.to_node(parse.tree().syntax());
508 ast::Fn(it) => it.short_label(),
509 ast::Struct(it) => it.short_label(),
510 ast::Enum(it) => it.short_label(),
511 ast::Trait(it) => it.short_label(),
512 ast::Module(it) => it.short_label(),
513 ast::TypeAlias(it) => it.short_label(),
514 ast::Const(it) => it.short_label(),
515 ast::Static(it) => it.short_label(),
516 ast::RecordField(it) => it.short_label(),
517 ast::Variant(it) => it.short_label(),
525 use expect_test::expect;
527 use crate::{fixture, Query};
530 fn test_nav_for_symbol() {
531 let (analysis, _) = fixture::file(
534 fn foo() { enum FooInner { } }
538 let navs = analysis.symbol_search(Query::new("FooInner".to_string())).unwrap();
549 description: "enum FooInner",
559 container_name: "foo",
560 description: "enum FooInner",
564 .assert_debug_eq(&navs);
568 fn test_world_symbols_are_case_sensitive() {
569 let (analysis, _) = fixture::file(
576 let navs = analysis.symbol_search(Query::new("foo".to_string())).unwrap();
577 assert_eq!(navs.len(), 2)