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 frange = node.original_file_range(db);
89 let mut res = NavigationTarget::from_syntax(
96 res.docs = module.attrs(db).docs();
97 res.description = src.value.short_label();
104 pub(crate) fn assert_match(&self, expected: &str) {
105 let actual = self.debug_render();
106 test_utils::assert_eq_text!(expected.trim(), actual.trim(),);
110 pub(crate) fn debug_render(&self) -> String {
111 let mut buf = format!(
118 if let Some(focus_range) = self.focus_range {
119 buf.push_str(&format!(" {:?}", focus_range))
121 if let Some(container_name) = &self.container_name {
122 buf.push_str(&format!(" {}", container_name))
127 /// Allows `NavigationTarget` to be created from a `NameOwner`
128 pub(crate) fn from_named(
130 node: InFile<&dyn ast::NameOwner>,
132 ) -> NavigationTarget {
133 let name = node.value.name().map(|it| it.text().into()).unwrap_or_else(|| "_".into());
135 node.value.name().map(|it| node.with_value(it.syntax()).original_file_range(db).range);
136 let frange = node.map(|it| it.syntax()).original_file_range(db);
138 NavigationTarget::from_syntax(frange.file_id, name, focus_range, frange.range, kind)
144 focus_range: Option<TextRange>,
145 full_range: TextRange,
147 ) -> NavigationTarget {
154 container_name: None,
161 impl ToNav for FileSymbol {
162 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
164 file_id: self.file_id,
165 name: self.name.clone(),
166 kind: Some(match self.kind {
167 FileSymbolKind::Function => SymbolKind::Function,
168 FileSymbolKind::Struct => SymbolKind::Struct,
169 FileSymbolKind::Enum => SymbolKind::Enum,
170 FileSymbolKind::Trait => SymbolKind::Trait,
171 FileSymbolKind::Module => SymbolKind::Module,
172 FileSymbolKind::TypeAlias => SymbolKind::TypeAlias,
173 FileSymbolKind::Const => SymbolKind::Const,
174 FileSymbolKind::Static => SymbolKind::Static,
175 FileSymbolKind::Macro => SymbolKind::Macro,
176 FileSymbolKind::Union => SymbolKind::Union,
178 full_range: self.range,
179 focus_range: self.name_range,
180 container_name: self.container_name.clone(),
181 description: description_from_symbol(db, self),
187 impl TryToNav for Definition {
188 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
190 Definition::Macro(it) => it.try_to_nav(db),
191 Definition::Field(it) => it.try_to_nav(db),
192 Definition::ModuleDef(it) => it.try_to_nav(db),
193 Definition::SelfType(it) => it.try_to_nav(db),
194 Definition::Local(it) => Some(it.to_nav(db)),
195 Definition::GenericParam(it) => it.try_to_nav(db),
196 Definition::Label(it) => Some(it.to_nav(db)),
201 impl TryToNav for hir::ModuleDef {
202 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
204 hir::ModuleDef::Module(it) => Some(it.to_nav(db)),
205 hir::ModuleDef::Function(it) => it.try_to_nav(db),
206 hir::ModuleDef::Adt(it) => it.try_to_nav(db),
207 hir::ModuleDef::Variant(it) => it.try_to_nav(db),
208 hir::ModuleDef::Const(it) => it.try_to_nav(db),
209 hir::ModuleDef::Static(it) => it.try_to_nav(db),
210 hir::ModuleDef::Trait(it) => it.try_to_nav(db),
211 hir::ModuleDef::TypeAlias(it) => it.try_to_nav(db),
212 hir::ModuleDef::BuiltinType(_) => None,
217 pub(crate) trait ToNavFromAst {
218 const KIND: SymbolKind;
220 impl ToNavFromAst for hir::Function {
221 const KIND: SymbolKind = SymbolKind::Function;
223 impl ToNavFromAst for hir::Const {
224 const KIND: SymbolKind = SymbolKind::Const;
226 impl ToNavFromAst for hir::Static {
227 const KIND: SymbolKind = SymbolKind::Static;
229 impl ToNavFromAst for hir::Struct {
230 const KIND: SymbolKind = SymbolKind::Struct;
232 impl ToNavFromAst for hir::Enum {
233 const KIND: SymbolKind = SymbolKind::Enum;
235 impl ToNavFromAst for hir::Variant {
236 const KIND: SymbolKind = SymbolKind::Variant;
238 impl ToNavFromAst for hir::Union {
239 const KIND: SymbolKind = SymbolKind::Union;
241 impl ToNavFromAst for hir::TypeAlias {
242 const KIND: SymbolKind = SymbolKind::TypeAlias;
244 impl ToNavFromAst for hir::Trait {
245 const KIND: SymbolKind = SymbolKind::Trait;
248 impl<D> TryToNav for D
250 D: HasSource + ToNavFromAst + Copy + HasAttrs,
251 D::Ast: ast::NameOwner + ShortLabel,
253 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
254 let src = self.source(db)?;
255 let mut res = NavigationTarget::from_named(
257 src.as_ref().map(|it| it as &dyn ast::NameOwner),
260 res.docs = self.docs(db);
261 res.description = src.value.short_label();
266 impl ToNav for hir::Module {
267 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
268 let src = self.definition_source(db);
269 let name = self.name(db).map(|it| it.to_string().into()).unwrap_or_default();
270 let (syntax, focus) = match &src.value {
271 ModuleSource::SourceFile(node) => (node.syntax(), None),
272 ModuleSource::Module(node) => {
273 (node.syntax(), node.name().map(|it| it.syntax().text_range()))
275 ModuleSource::BlockExpr(node) => (node.syntax(), None),
277 let frange = src.with_value(syntax).original_file_range(db);
278 NavigationTarget::from_syntax(frange.file_id, name, focus, frange.range, SymbolKind::Module)
282 impl TryToNav for hir::Impl {
283 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
284 let src = self.source(db)?;
285 let derive_attr = self.is_builtin_derive(db);
286 let frange = if let Some(item) = &derive_attr {
287 item.syntax().original_file_range(db)
289 src.as_ref().map(|it| it.syntax()).original_file_range(db)
291 let focus_range = if derive_attr.is_some() {
294 src.value.self_ty().map(|ty| src.with_value(ty.syntax()).original_file_range(db).range)
297 Some(NavigationTarget::from_syntax(
307 impl TryToNav for hir::Field {
308 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
309 let src = self.source(db)?;
311 let field_source = match &src.value {
312 FieldSource::Named(it) => {
314 NavigationTarget::from_named(db, src.with_value(it), SymbolKind::Field);
315 res.docs = self.docs(db);
316 res.description = it.short_label();
319 FieldSource::Pos(it) => {
320 let frange = src.with_value(it.syntax()).original_file_range(db);
321 NavigationTarget::from_syntax(
334 impl TryToNav for hir::MacroDef {
335 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
336 let src = self.source(db)?;
337 log::debug!("nav target {:#?}", src.value.syntax());
338 let mut res = NavigationTarget::from_named(
340 src.as_ref().map(|it| it as &dyn ast::NameOwner),
343 res.docs = self.docs(db);
348 impl TryToNav for hir::Adt {
349 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
351 hir::Adt::Struct(it) => it.try_to_nav(db),
352 hir::Adt::Union(it) => it.try_to_nav(db),
353 hir::Adt::Enum(it) => it.try_to_nav(db),
358 impl TryToNav for hir::AssocItem {
359 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
361 AssocItem::Function(it) => it.try_to_nav(db),
362 AssocItem::Const(it) => it.try_to_nav(db),
363 AssocItem::TypeAlias(it) => it.try_to_nav(db),
368 impl TryToNav for hir::GenericParam {
369 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
371 hir::GenericParam::TypeParam(it) => it.try_to_nav(db),
372 hir::GenericParam::ConstParam(it) => it.try_to_nav(db),
373 hir::GenericParam::LifetimeParam(it) => it.try_to_nav(db),
378 impl ToNav for hir::Local {
379 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
380 let src = self.source(db);
381 let (node, name) = match &src.value {
382 Either::Left(bind_pat) => (bind_pat.syntax().clone(), bind_pat.name()),
383 Either::Right(it) => (it.syntax().clone(), it.name()),
386 name.map(|it| src.with_value(&it.syntax().clone()).original_file_range(db).range);
388 let full_range = src.with_value(&node).original_file_range(db);
389 let name = match self.name(db) {
390 Some(it) => it.to_string().into(),
393 let kind = if self.is_self(db) {
394 SymbolKind::SelfParam
395 } else if self.is_param(db) {
396 SymbolKind::ValueParam
401 file_id: full_range.file_id,
404 full_range: full_range.range,
406 container_name: None,
413 impl ToNav for hir::Label {
414 fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
415 let src = self.source(db);
416 let node = src.value.syntax();
417 let FileRange { file_id, range } = src.with_value(node).original_file_range(db);
419 src.value.lifetime().and_then(|lt| lt.lifetime_ident_token()).map(|lt| lt.text_range());
420 let name = self.name(db).to_string().into();
424 kind: Some(SymbolKind::Label),
427 container_name: None,
434 impl TryToNav for hir::TypeParam {
435 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
436 let src = self.source(db)?;
437 let full_range = match &src.value {
438 Either::Left(it) => it.syntax().text_range(),
439 Either::Right(it) => it.syntax().text_range(),
441 let focus_range = match &src.value {
442 Either::Left(_) => None,
443 Either::Right(it) => it.name().map(|it| it.syntax().text_range()),
445 Some(NavigationTarget {
446 file_id: src.file_id.original_file(db),
447 name: self.name(db).to_string().into(),
448 kind: Some(SymbolKind::TypeParam),
451 container_name: None,
458 impl TryToNav for hir::LifetimeParam {
459 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
460 let src = self.source(db)?;
461 let full_range = src.value.syntax().text_range();
462 Some(NavigationTarget {
463 file_id: src.file_id.original_file(db),
464 name: self.name(db).to_string().into(),
465 kind: Some(SymbolKind::LifetimeParam),
467 focus_range: Some(full_range),
468 container_name: None,
475 impl TryToNav for hir::ConstParam {
476 fn try_to_nav(&self, db: &RootDatabase) -> Option<NavigationTarget> {
477 let src = self.source(db)?;
478 let full_range = src.value.syntax().text_range();
479 Some(NavigationTarget {
480 file_id: src.file_id.original_file(db),
481 name: self.name(db).to_string().into(),
482 kind: Some(SymbolKind::ConstParam),
484 focus_range: src.value.name().map(|n| n.syntax().text_range()),
485 container_name: None,
492 /// Get a description of a symbol.
494 /// e.g. `struct Name`, `enum Name`, `fn Name`
495 pub(crate) fn description_from_symbol(db: &RootDatabase, symbol: &FileSymbol) -> Option<String> {
496 let parse = db.parse(symbol.file_id);
497 let node = symbol.ptr.to_node(parse.tree().syntax());
501 ast::Fn(it) => it.short_label(),
502 ast::Struct(it) => it.short_label(),
503 ast::Enum(it) => it.short_label(),
504 ast::Trait(it) => it.short_label(),
505 ast::Module(it) => it.short_label(),
506 ast::TypeAlias(it) => it.short_label(),
507 ast::Const(it) => it.short_label(),
508 ast::Static(it) => it.short_label(),
509 ast::RecordField(it) => it.short_label(),
510 ast::Variant(it) => it.short_label(),
518 use expect_test::expect;
520 use crate::{fixture, Query};
523 fn test_nav_for_symbol() {
524 let (analysis, _) = fixture::file(
527 fn foo() { enum FooInner { } }
531 let navs = analysis.symbol_search(Query::new("FooInner".to_string())).unwrap();
542 description: "enum FooInner",
552 container_name: "foo",
553 description: "enum FooInner",
557 .assert_debug_eq(&navs);
561 fn test_world_symbols_are_case_sensitive() {
562 let (analysis, _) = fixture::file(
569 let navs = analysis.symbol_search(Query::new("foo".to_string())).unwrap();
570 assert_eq!(navs.len(), 2)