1164 lines
26 KiB
Rust
1164 lines
26 KiB
Rust
//! This module implements a reference search.
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//! First, the element at the cursor position must be either an `ast::Name`
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//! or `ast::NameRef`. If it's a `ast::NameRef`, at the classification step we
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//! try to resolve the direct tree parent of this element, otherwise we
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//! already have a definition and just need to get its HIR together with
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//! some information that is needed for futher steps of searching.
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//! After that, we collect files that might contain references and look
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//! for text occurrences of the identifier. If there's an `ast::NameRef`
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//! at the index that the match starts at and its tree parent is
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//! resolved to the search element definition, we get a reference.
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pub(crate) mod rename;
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use hir::Semantics;
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use ide_db::{
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defs::{Definition, NameClass, NameRefClass},
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search::Reference,
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search::{ReferenceAccess, ReferenceKind, SearchScope},
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RootDatabase,
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};
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use syntax::{
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algo::find_node_at_offset,
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ast::{self, NameOwner},
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match_ast, AstNode, SyntaxKind, SyntaxNode, TextRange, TokenAtOffset,
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};
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use crate::{display::TryToNav, FilePosition, FileRange, NavigationTarget, RangeInfo, SymbolKind};
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#[derive(Debug, Clone)]
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pub struct ReferenceSearchResult {
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declaration: Declaration,
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references: Vec<Reference>,
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}
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#[derive(Debug, Clone)]
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pub struct Declaration {
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pub nav: NavigationTarget,
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pub kind: ReferenceKind,
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pub access: Option<ReferenceAccess>,
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}
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impl ReferenceSearchResult {
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pub fn declaration(&self) -> &Declaration {
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&self.declaration
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}
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pub fn decl_target(&self) -> &NavigationTarget {
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&self.declaration.nav
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}
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pub fn references(&self) -> &[Reference] {
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&self.references
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}
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/// Total number of references
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/// At least 1 since all valid references should
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/// Have a declaration
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pub fn len(&self) -> usize {
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self.references.len() + 1
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}
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}
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// allow turning ReferenceSearchResult into an iterator
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// over References
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impl IntoIterator for ReferenceSearchResult {
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type Item = Reference;
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type IntoIter = std::vec::IntoIter<Reference>;
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fn into_iter(mut self) -> Self::IntoIter {
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let mut v = Vec::with_capacity(self.len());
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v.push(Reference {
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file_range: FileRange {
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file_id: self.declaration.nav.file_id,
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range: self.declaration.nav.focus_or_full_range(),
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},
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kind: self.declaration.kind,
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access: self.declaration.access,
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});
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v.append(&mut self.references);
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v.into_iter()
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}
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}
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pub(crate) fn find_all_refs(
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sema: &Semantics<RootDatabase>,
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position: FilePosition,
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search_scope: Option<SearchScope>,
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) -> Option<RangeInfo<ReferenceSearchResult>> {
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let _p = profile::span("find_all_refs");
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let syntax = sema.parse(position.file_id).syntax().clone();
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if let Some(res) = try_find_self_references(&syntax, position) {
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return Some(res);
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}
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let (opt_name, search_kind) = if let Some(name) =
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get_struct_def_name_for_struct_literal_search(&sema, &syntax, position)
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{
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(Some(name), ReferenceKind::StructLiteral)
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} else if let Some(name) = get_enum_def_name_for_struct_literal_search(&sema, &syntax, position)
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{
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(Some(name), ReferenceKind::EnumLiteral)
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} else {
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(
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sema.find_node_at_offset_with_descend::<ast::Name>(&syntax, position.offset),
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ReferenceKind::Other,
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)
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};
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let RangeInfo { range, info: def } = find_name(&sema, &syntax, position, opt_name)?;
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let references = def
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.usages(sema)
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.set_scope(search_scope)
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.all()
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.into_iter()
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.filter(|r| search_kind == ReferenceKind::Other || search_kind == r.kind)
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.collect();
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let nav = def.try_to_nav(sema.db)?;
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let decl_range = nav.focus_or_full_range();
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let mut kind = ReferenceKind::Other;
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if let Definition::Local(local) = def {
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if let either::Either::Left(pat) = local.source(sema.db).value {
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if matches!(
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pat.syntax().parent().and_then(ast::RecordPatField::cast),
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Some(pat_field) if pat_field.name_ref().is_none()
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) {
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kind = ReferenceKind::FieldShorthandForLocal;
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}
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}
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} else if matches!(def, Definition::LifetimeParam(_) | Definition::Label(_)) {
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kind = ReferenceKind::Lifetime;
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};
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let declaration = Declaration { nav, kind, access: decl_access(&def, &syntax, decl_range) };
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Some(RangeInfo::new(range, ReferenceSearchResult { declaration, references }))
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}
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fn find_name(
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sema: &Semantics<RootDatabase>,
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syntax: &SyntaxNode,
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position: FilePosition,
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opt_name: Option<ast::Name>,
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) -> Option<RangeInfo<Definition>> {
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if let Some(name) = opt_name {
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let def = NameClass::classify(sema, &name)?.referenced_or_defined(sema.db);
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let FileRange { range, .. } = sema.original_range(name.syntax());
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return Some(RangeInfo::new(range, def));
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}
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let (FileRange { range, .. }, def) = if let Some(lifetime) =
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sema.find_node_at_offset_with_descend::<ast::Lifetime>(&syntax, position.offset)
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{
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if let Some(def) = NameRefClass::classify_lifetime(sema, &lifetime)
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.map(|class| NameRefClass::referenced(class, sema.db))
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{
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(sema.original_range(lifetime.syntax()), def)
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} else {
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(
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sema.original_range(lifetime.syntax()),
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NameClass::classify_lifetime(sema, &lifetime)?.referenced_or_defined(sema.db),
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)
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}
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} else {
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let name_ref =
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sema.find_node_at_offset_with_descend::<ast::NameRef>(&syntax, position.offset)?;
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(
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sema.original_range(name_ref.syntax()),
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NameRefClass::classify(sema, &name_ref)?.referenced(sema.db),
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)
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};
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Some(RangeInfo::new(range, def))
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}
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fn decl_access(def: &Definition, syntax: &SyntaxNode, range: TextRange) -> Option<ReferenceAccess> {
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match def {
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Definition::Local(_) | Definition::Field(_) => {}
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_ => return None,
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};
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let stmt = find_node_at_offset::<ast::LetStmt>(syntax, range.start())?;
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if stmt.initializer().is_some() {
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let pat = stmt.pat()?;
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if let ast::Pat::IdentPat(it) = pat {
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if it.mut_token().is_some() {
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return Some(ReferenceAccess::Write);
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}
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}
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}
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None
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}
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fn get_struct_def_name_for_struct_literal_search(
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sema: &Semantics<RootDatabase>,
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syntax: &SyntaxNode,
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position: FilePosition,
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) -> Option<ast::Name> {
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if let TokenAtOffset::Between(ref left, ref right) = syntax.token_at_offset(position.offset) {
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if right.kind() != SyntaxKind::L_CURLY && right.kind() != SyntaxKind::L_PAREN {
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return None;
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}
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if let Some(name) =
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sema.find_node_at_offset_with_descend::<ast::Name>(&syntax, left.text_range().start())
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{
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return name.syntax().ancestors().find_map(ast::Struct::cast).and_then(|l| l.name());
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}
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if sema
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.find_node_at_offset_with_descend::<ast::GenericParamList>(
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&syntax,
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left.text_range().start(),
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)
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.is_some()
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{
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return left.ancestors().find_map(ast::Struct::cast).and_then(|l| l.name());
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}
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}
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None
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}
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fn get_enum_def_name_for_struct_literal_search(
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sema: &Semantics<RootDatabase>,
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syntax: &SyntaxNode,
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position: FilePosition,
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) -> Option<ast::Name> {
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if let TokenAtOffset::Between(ref left, ref right) = syntax.token_at_offset(position.offset) {
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if right.kind() != SyntaxKind::L_CURLY && right.kind() != SyntaxKind::L_PAREN {
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return None;
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}
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if let Some(name) =
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sema.find_node_at_offset_with_descend::<ast::Name>(&syntax, left.text_range().start())
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{
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return name.syntax().ancestors().find_map(ast::Enum::cast).and_then(|l| l.name());
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}
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if sema
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.find_node_at_offset_with_descend::<ast::GenericParamList>(
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&syntax,
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left.text_range().start(),
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)
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.is_some()
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{
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return left.ancestors().find_map(ast::Enum::cast).and_then(|l| l.name());
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}
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}
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None
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}
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fn try_find_self_references(
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syntax: &SyntaxNode,
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position: FilePosition,
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) -> Option<RangeInfo<ReferenceSearchResult>> {
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let self_token =
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syntax.token_at_offset(position.offset).find(|t| t.kind() == SyntaxKind::SELF_KW)?;
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let parent = self_token.parent();
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match_ast! {
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match parent {
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ast::SelfParam(it) => (),
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ast::PathSegment(segment) => {
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segment.self_token()?;
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let path = segment.parent_path();
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if path.qualifier().is_some() && !ast::PathExpr::can_cast(path.syntax().parent()?.kind()) {
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return None;
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}
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},
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_ => return None,
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}
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};
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let function = parent.ancestors().find_map(ast::Fn::cast)?;
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let self_param = function.param_list()?.self_param()?;
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let param_self_token = self_param.self_token()?;
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let declaration = Declaration {
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nav: NavigationTarget {
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file_id: position.file_id,
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full_range: self_param.syntax().text_range(),
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focus_range: Some(param_self_token.text_range()),
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name: param_self_token.text().clone(),
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kind: Some(SymbolKind::SelfParam),
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container_name: None,
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description: None,
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docs: None,
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},
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kind: ReferenceKind::SelfKw,
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access: Some(if self_param.mut_token().is_some() {
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ReferenceAccess::Write
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} else {
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ReferenceAccess::Read
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}),
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};
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let references = function
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.body()
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.map(|body| {
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body.syntax()
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.descendants()
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.filter_map(ast::PathExpr::cast)
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.filter_map(|expr| {
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let path = expr.path()?;
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if path.qualifier().is_none() {
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path.segment()?.self_token()
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} else {
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None
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}
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})
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.map(|token| Reference {
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file_range: FileRange { file_id: position.file_id, range: token.text_range() },
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kind: ReferenceKind::SelfKw,
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access: declaration.access, // FIXME: properly check access kind here instead of copying it from the declaration
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})
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.collect()
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})
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.unwrap_or_default();
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Some(RangeInfo::new(
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param_self_token.text_range(),
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ReferenceSearchResult { declaration, references },
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))
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}
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#[cfg(test)]
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mod tests {
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use expect_test::{expect, Expect};
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use ide_db::base_db::FileId;
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use stdx::format_to;
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use crate::{fixture, SearchScope};
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#[test]
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fn test_struct_literal_after_space() {
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check(
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r#"
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struct Foo <|>{
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a: i32,
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}
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impl Foo {
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fn f() -> i32 { 42 }
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}
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fn main() {
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let f: Foo;
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f = Foo {a: Foo::f()};
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}
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"#,
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expect![[r#"
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Foo Struct FileId(0) 0..26 7..10 Other
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FileId(0) 101..104 StructLiteral
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"#]],
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);
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}
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#[test]
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fn test_struct_literal_before_space() {
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check(
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r#"
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struct Foo<|> {}
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fn main() {
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let f: Foo;
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f = Foo {};
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}
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"#,
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expect![[r#"
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Foo Struct FileId(0) 0..13 7..10 Other
|
|
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|
FileId(0) 41..44 Other
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FileId(0) 54..57 StructLiteral
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"#]],
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);
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}
|
|
|
|
#[test]
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fn test_struct_literal_with_generic_type() {
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check(
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r#"
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struct Foo<T> <|>{}
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|
fn main() {
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let f: Foo::<i32>;
|
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f = Foo {};
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}
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|
"#,
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expect![[r#"
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Foo Struct FileId(0) 0..16 7..10 Other
|
|
|
|
FileId(0) 64..67 StructLiteral
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"#]],
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);
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}
|
|
|
|
#[test]
|
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fn test_struct_literal_for_tuple() {
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check(
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r#"
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struct Foo<|>(i32);
|
|
|
|
fn main() {
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let f: Foo;
|
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f = Foo(1);
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}
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|
"#,
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expect![[r#"
|
|
Foo Struct FileId(0) 0..16 7..10 Other
|
|
|
|
FileId(0) 54..57 StructLiteral
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|
"#]],
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);
|
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}
|
|
|
|
#[test]
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fn test_enum_after_space() {
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check(
|
|
r#"
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enum Foo <|>{
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|
A,
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B,
|
|
}
|
|
fn main() {
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|
let f: Foo;
|
|
f = Foo::A;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
Foo Enum FileId(0) 0..26 5..8 Other
|
|
|
|
FileId(0) 63..66 EnumLiteral
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|
"#]],
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|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_enum_before_space() {
|
|
check(
|
|
r#"
|
|
enum Foo<|> {
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|
A,
|
|
B,
|
|
}
|
|
fn main() {
|
|
let f: Foo;
|
|
f = Foo::A;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
Foo Enum FileId(0) 0..26 5..8 Other
|
|
|
|
FileId(0) 50..53 Other
|
|
FileId(0) 63..66 EnumLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_enum_with_generic_type() {
|
|
check(
|
|
r#"
|
|
enum Foo<T> <|>{
|
|
A(T),
|
|
B,
|
|
}
|
|
fn main() {
|
|
let f: Foo<i8>;
|
|
f = Foo::A(1);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
Foo Enum FileId(0) 0..32 5..8 Other
|
|
|
|
FileId(0) 73..76 EnumLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_enum_for_tuple() {
|
|
check(
|
|
r#"
|
|
enum Foo<|>{
|
|
A(i8),
|
|
B(i8),
|
|
}
|
|
fn main() {
|
|
let f: Foo;
|
|
f = Foo::A(1);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
Foo Enum FileId(0) 0..33 5..8 Other
|
|
|
|
FileId(0) 70..73 EnumLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_for_local() {
|
|
check(
|
|
r#"
|
|
fn main() {
|
|
let mut i = 1;
|
|
let j = 1;
|
|
i = i<|> + j;
|
|
|
|
{
|
|
i = 0;
|
|
}
|
|
|
|
i = 5;
|
|
}"#,
|
|
expect![[r#"
|
|
i Local FileId(0) 24..25 Other Write
|
|
|
|
FileId(0) 50..51 Other Write
|
|
FileId(0) 54..55 Other Read
|
|
FileId(0) 76..77 Other Write
|
|
FileId(0) 94..95 Other Write
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn search_filters_by_range() {
|
|
check(
|
|
r#"
|
|
fn foo() {
|
|
let spam<|> = 92;
|
|
spam + spam
|
|
}
|
|
fn bar() {
|
|
let spam = 92;
|
|
spam + spam
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
spam Local FileId(0) 19..23 Other
|
|
|
|
FileId(0) 34..38 Other Read
|
|
FileId(0) 41..45 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_for_param_inside() {
|
|
check(
|
|
r#"
|
|
fn foo(i : u32) -> u32 { i<|> }
|
|
"#,
|
|
expect![[r#"
|
|
i ValueParam FileId(0) 7..8 Other
|
|
|
|
FileId(0) 25..26 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_for_fn_param() {
|
|
check(
|
|
r#"
|
|
fn foo(i<|> : u32) -> u32 { i }
|
|
"#,
|
|
expect![[r#"
|
|
i ValueParam FileId(0) 7..8 Other
|
|
|
|
FileId(0) 25..26 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_field_name() {
|
|
check(
|
|
r#"
|
|
//- /lib.rs
|
|
struct Foo {
|
|
pub spam<|>: u32,
|
|
}
|
|
|
|
fn main(s: Foo) {
|
|
let f = s.spam;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
spam Field FileId(0) 17..30 21..25 Other
|
|
|
|
FileId(0) 67..71 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_impl_item_name() {
|
|
check(
|
|
r#"
|
|
struct Foo;
|
|
impl Foo {
|
|
fn f<|>(&self) { }
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
f Function FileId(0) 27..43 30..31 Other
|
|
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_enum_var_name() {
|
|
check(
|
|
r#"
|
|
enum Foo {
|
|
A,
|
|
B<|>,
|
|
C,
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
B Variant FileId(0) 22..23 22..23 Other
|
|
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_enum_var_field() {
|
|
check(
|
|
r#"
|
|
enum Foo {
|
|
A,
|
|
B { field<|>: u8 },
|
|
C,
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
field Field FileId(0) 26..35 26..31 Other
|
|
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_two_modules() {
|
|
check(
|
|
r#"
|
|
//- /lib.rs
|
|
pub mod foo;
|
|
pub mod bar;
|
|
|
|
fn f() {
|
|
let i = foo::Foo { n: 5 };
|
|
}
|
|
|
|
//- /foo.rs
|
|
use crate::bar;
|
|
|
|
pub struct Foo {
|
|
pub n: u32,
|
|
}
|
|
|
|
fn f() {
|
|
let i = bar::Bar { n: 5 };
|
|
}
|
|
|
|
//- /bar.rs
|
|
use crate::foo;
|
|
|
|
pub struct Bar {
|
|
pub n: u32,
|
|
}
|
|
|
|
fn f() {
|
|
let i = foo::Foo<|> { n: 5 };
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
Foo Struct FileId(1) 17..51 28..31 Other
|
|
|
|
FileId(0) 53..56 StructLiteral
|
|
FileId(2) 79..82 StructLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
// `mod foo;` is not in the results because `foo` is an `ast::Name`.
|
|
// So, there are two references: the first one is a definition of the `foo` module,
|
|
// which is the whole `foo.rs`, and the second one is in `use foo::Foo`.
|
|
#[test]
|
|
fn test_find_all_refs_decl_module() {
|
|
check(
|
|
r#"
|
|
//- /lib.rs
|
|
mod foo<|>;
|
|
|
|
use foo::Foo;
|
|
|
|
fn f() {
|
|
let i = Foo { n: 5 };
|
|
}
|
|
|
|
//- /foo.rs
|
|
pub struct Foo {
|
|
pub n: u32,
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
foo Module FileId(1) 0..35 Other
|
|
|
|
FileId(0) 14..17 Other
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_super_mod_vis() {
|
|
check(
|
|
r#"
|
|
//- /lib.rs
|
|
mod foo;
|
|
|
|
//- /foo.rs
|
|
mod some;
|
|
use some::Foo;
|
|
|
|
fn f() {
|
|
let i = Foo { n: 5 };
|
|
}
|
|
|
|
//- /foo/some.rs
|
|
pub(super) struct Foo<|> {
|
|
pub n: u32,
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
Foo Struct FileId(2) 0..41 18..21 Other
|
|
|
|
FileId(1) 20..23 Other
|
|
FileId(1) 47..50 StructLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_with_scope() {
|
|
let code = r#"
|
|
//- /lib.rs
|
|
mod foo;
|
|
mod bar;
|
|
|
|
pub fn quux<|>() {}
|
|
|
|
//- /foo.rs
|
|
fn f() { super::quux(); }
|
|
|
|
//- /bar.rs
|
|
fn f() { super::quux(); }
|
|
"#;
|
|
|
|
check_with_scope(
|
|
code,
|
|
None,
|
|
expect![[r#"
|
|
quux Function FileId(0) 19..35 26..30 Other
|
|
|
|
FileId(1) 16..20 StructLiteral
|
|
FileId(2) 16..20 StructLiteral
|
|
"#]],
|
|
);
|
|
|
|
check_with_scope(
|
|
code,
|
|
Some(SearchScope::single_file(FileId(2))),
|
|
expect![[r#"
|
|
quux Function FileId(0) 19..35 26..30 Other
|
|
|
|
FileId(2) 16..20 StructLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_macro_def() {
|
|
check(
|
|
r#"
|
|
#[macro_export]
|
|
macro_rules! m1<|> { () => (()) }
|
|
|
|
fn foo() {
|
|
m1();
|
|
m1();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
m1 Macro FileId(0) 0..46 29..31 Other
|
|
|
|
FileId(0) 63..65 StructLiteral
|
|
FileId(0) 73..75 StructLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_basic_highlight_read_write() {
|
|
check(
|
|
r#"
|
|
fn foo() {
|
|
let mut i<|> = 0;
|
|
i = i + 1;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
i Local FileId(0) 23..24 Other Write
|
|
|
|
FileId(0) 34..35 Other Write
|
|
FileId(0) 38..39 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_basic_highlight_field_read_write() {
|
|
check(
|
|
r#"
|
|
struct S {
|
|
f: u32,
|
|
}
|
|
|
|
fn foo() {
|
|
let mut s = S{f: 0};
|
|
s.f<|> = 0;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
f Field FileId(0) 15..21 15..16 Other
|
|
|
|
FileId(0) 55..56 RecordFieldExprOrPat Read
|
|
FileId(0) 68..69 Other Write
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_basic_highlight_decl_no_write() {
|
|
check(
|
|
r#"
|
|
fn foo() {
|
|
let i<|>;
|
|
i = 1;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
i Local FileId(0) 19..20 Other
|
|
|
|
FileId(0) 26..27 Other Write
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_struct_function_refs_outside_module() {
|
|
check(
|
|
r#"
|
|
mod foo {
|
|
pub struct Foo;
|
|
|
|
impl Foo {
|
|
pub fn new<|>() -> Foo { Foo }
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let _f = foo::Foo::new();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
new Function FileId(0) 54..81 61..64 Other
|
|
|
|
FileId(0) 126..129 StructLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_nested_module() {
|
|
check(
|
|
r#"
|
|
//- /lib.rs
|
|
mod foo { mod bar; }
|
|
|
|
fn f<|>() {}
|
|
|
|
//- /foo/bar.rs
|
|
use crate::f;
|
|
|
|
fn g() { f(); }
|
|
"#,
|
|
expect![[r#"
|
|
f Function FileId(0) 22..31 25..26 Other
|
|
|
|
FileId(1) 11..12 Other
|
|
FileId(1) 24..25 StructLiteral
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_struct_pat() {
|
|
check(
|
|
r#"
|
|
struct S {
|
|
field<|>: u8,
|
|
}
|
|
|
|
fn f(s: S) {
|
|
match s {
|
|
S { field } => {}
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
field Field FileId(0) 15..24 15..20 Other
|
|
|
|
FileId(0) 68..73 FieldShorthandForField Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_enum_var_pat() {
|
|
check(
|
|
r#"
|
|
enum En {
|
|
Variant {
|
|
field<|>: u8,
|
|
}
|
|
}
|
|
|
|
fn f(e: En) {
|
|
match e {
|
|
En::Variant { field } => {}
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
field Field FileId(0) 32..41 32..37 Other
|
|
|
|
FileId(0) 102..107 FieldShorthandForField Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_all_refs_enum_var_privacy() {
|
|
check(
|
|
r#"
|
|
mod m {
|
|
pub enum En {
|
|
Variant {
|
|
field<|>: u8,
|
|
}
|
|
}
|
|
}
|
|
|
|
fn f() -> m::En {
|
|
m::En::Variant { field: 0 }
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
field Field FileId(0) 56..65 56..61 Other
|
|
|
|
FileId(0) 125..130 RecordFieldExprOrPat Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_self_refs() {
|
|
check(
|
|
r#"
|
|
struct Foo { bar: i32 }
|
|
|
|
impl Foo {
|
|
fn foo(self) {
|
|
let x = self<|>.bar;
|
|
if true {
|
|
let _ = match () {
|
|
() => self,
|
|
};
|
|
}
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
self SelfParam FileId(0) 47..51 47..51 SelfKw Read
|
|
|
|
FileId(0) 71..75 SelfKw Read
|
|
FileId(0) 152..156 SelfKw Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
fn check(ra_fixture: &str, expect: Expect) {
|
|
check_with_scope(ra_fixture, None, expect)
|
|
}
|
|
|
|
fn check_with_scope(ra_fixture: &str, search_scope: Option<SearchScope>, expect: Expect) {
|
|
let (analysis, pos) = fixture::position(ra_fixture);
|
|
let refs = analysis.find_all_refs(pos, search_scope).unwrap().unwrap();
|
|
|
|
let mut actual = String::new();
|
|
{
|
|
let decl = refs.declaration;
|
|
format_to!(actual, "{} {:?}", decl.nav.debug_render(), decl.kind);
|
|
if let Some(access) = decl.access {
|
|
format_to!(actual, " {:?}", access)
|
|
}
|
|
actual += "\n\n";
|
|
}
|
|
|
|
for r in &refs.references {
|
|
format_to!(actual, "{:?} {:?} {:?}", r.file_range.file_id, r.file_range.range, r.kind);
|
|
if let Some(access) = r.access {
|
|
format_to!(actual, " {:?}", access);
|
|
}
|
|
actual += "\n";
|
|
}
|
|
expect.assert_eq(&actual)
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_lifetimes_function() {
|
|
check(
|
|
r#"
|
|
trait Foo<'a> {}
|
|
impl<'a> Foo<'a> for &'a () {}
|
|
fn foo<'a, 'b: 'a>(x: &'a<|> ()) -> &'a () where &'a (): Foo<'a> {
|
|
fn bar<'a>(_: &'a ()) {}
|
|
x
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
'a LifetimeParam FileId(0) 55..57 55..57 Lifetime
|
|
|
|
FileId(0) 63..65 Lifetime
|
|
FileId(0) 71..73 Lifetime
|
|
FileId(0) 82..84 Lifetime
|
|
FileId(0) 95..97 Lifetime
|
|
FileId(0) 106..108 Lifetime
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_lifetimes_type_alias() {
|
|
check(
|
|
r#"
|
|
type Foo<'a, T> where T: 'a<|> = &'a T;
|
|
"#,
|
|
expect![[r#"
|
|
'a LifetimeParam FileId(0) 9..11 9..11 Lifetime
|
|
|
|
FileId(0) 25..27 Lifetime
|
|
FileId(0) 31..33 Lifetime
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_lifetimes_trait_impl() {
|
|
check(
|
|
r#"
|
|
trait Foo<'a> {
|
|
fn foo() -> &'a ();
|
|
}
|
|
impl<'a> Foo<'a> for &'a () {
|
|
fn foo() -> &'a<|> () {
|
|
unimplemented!()
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
'a LifetimeParam FileId(0) 47..49 47..49 Lifetime
|
|
|
|
FileId(0) 55..57 Lifetime
|
|
FileId(0) 64..66 Lifetime
|
|
FileId(0) 89..91 Lifetime
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_map_range_to_original() {
|
|
check(
|
|
r#"
|
|
macro_rules! foo {($i:ident) => {$i} }
|
|
fn main() {
|
|
let a<|> = "test";
|
|
foo!(a);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
a Local FileId(0) 59..60 Other
|
|
|
|
FileId(0) 80..81 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_map_range_to_original_ref() {
|
|
check(
|
|
r#"
|
|
macro_rules! foo {($i:ident) => {$i} }
|
|
fn main() {
|
|
let a = "test";
|
|
foo!(a<|>);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
a Local FileId(0) 59..60 Other
|
|
|
|
FileId(0) 80..81 Other Read
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_labels() {
|
|
check(
|
|
r#"
|
|
fn foo<'a>() -> &'a () {
|
|
'a: loop {
|
|
'b: loop {
|
|
continue 'a<|>;
|
|
}
|
|
break 'a;
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
'a Label FileId(0) 29..32 29..31 Lifetime
|
|
|
|
FileId(0) 80..82 Lifetime
|
|
FileId(0) 108..110 Lifetime
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_find_const_param() {
|
|
check(
|
|
r#"
|
|
fn foo<const FOO<|>: usize>() -> usize {
|
|
FOO
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
FOO ConstParam FileId(0) 7..23 13..16 Other
|
|
|
|
FileId(0) 42..45 Other
|
|
"#]],
|
|
);
|
|
}
|
|
}
|