crates/hir/src/source_analyzer.rs

   1 //! Lookup hir elements using positions in the source code. This is a lossy
   2 //! transformation: in general, a single source might correspond to several
   3 //! modules, functions, etc, due to macros, cfgs and `#[path=]` attributes on
   4 //! modules.
   5 //!
   6 //! So, this modules should not be used during hir construction, it exists
   7 //! purely for "IDE needs".
   8 use std::{iter::once, sync::Arc};
   9
  10 use hir_def::{
  11     body::{
  12         self,
  13         scope::{ExprScopes, ScopeId},
  14         Body, BodySourceMap,
  15     },
  16     expr::{ExprId, Pat, PatId},
  17     path::{ModPath, Path, PathKind},
  18     resolver::{resolver_for_scope, Resolver, TypeNs, ValueNs},
  19     AsMacroCall, DefWithBodyId, FieldId, FunctionId, LocalFieldId, VariantId,
  20 };
  21 use hir_expand::{hygiene::Hygiene, name::AsName, HirFileId, InFile};
  22 use hir_ty::{
  23     diagnostics::{record_literal_missing_fields, record_pattern_missing_fields},
  24     InferenceResult, Interner, Substitution, TyExt, TyLoweringContext,
  25 };
  26 use syntax::{
  27     ast::{self, AstNode},
  28     SyntaxNode, TextRange, TextSize,
  29 };
  30
  31 use crate::{
  32     db::HirDatabase, semantics::PathResolution, Adt, BuiltinType, Const, Field, Function, Local,
  33     MacroDef, ModuleDef, Static, Struct, Trait, Type, TypeAlias, TypeParam, Variant,
  34 };
  35 use base_db::CrateId;
  36
  37 /// `SourceAnalyzer` is a convenience wrapper which exposes HIR API in terms of
  38 /// original source files. It should not be used inside the HIR itself.
  39 #[derive(Debug)]
  40 pub(crate) struct SourceAnalyzer {
  41     pub(crate) file_id: HirFileId,
  42     pub(crate) resolver: Resolver,
  43     body: Option<Arc<Body>>,
  44     body_source_map: Option<Arc<BodySourceMap>>,
  45     infer: Option<Arc<InferenceResult>>,
  46     scopes: Option<Arc<ExprScopes>>,
  47 }
  48
  49 impl SourceAnalyzer {
  50     pub(crate) fn new_for_body(
  51         db: &dyn HirDatabase,
  52         def: DefWithBodyId,
  53         node: InFile<&SyntaxNode>,
  54         offset: Option<TextSize>,
  55     ) -> SourceAnalyzer {
  56         let (body, source_map) = db.body_with_source_map(def);
  57         let scopes = db.expr_scopes(def);
  58         let scope = match offset {
  59             None => scope_for(&scopes, &source_map, node),
  60             Some(offset) => scope_for_offset(db, &scopes, &source_map, node.with_value(offset)),
  61         };
  62         let resolver = resolver_for_scope(db.upcast(), def, scope);
  63         SourceAnalyzer {
  64             resolver,
  65             body: Some(body),
  66             body_source_map: Some(source_map),
  67             infer: Some(db.infer(def)),
  68             scopes: Some(scopes),
  69             file_id: node.file_id,
  70         }
  71     }
  72
  73     pub(crate) fn new_for_resolver(
  74         resolver: Resolver,
  75         node: InFile<&SyntaxNode>,
  76     ) -> SourceAnalyzer {
  77         SourceAnalyzer {
  78             resolver,
  79             body: None,
  80             body_source_map: None,
  81             infer: None,
  82             scopes: None,
  83             file_id: node.file_id,
  84         }
  85     }
  86
  87     fn expr_id(&self, db: &dyn HirDatabase, expr: &ast::Expr) -> Option<ExprId> {
  88         let src = match expr {
  89             ast::Expr::MacroCall(call) => {
  90                 self.expand_expr(db, InFile::new(self.file_id, call.clone()))?
  91             }
  92             _ => InFile::new(self.file_id, expr.clone()),
  93         };
  94         let sm = self.body_source_map.as_ref()?;
  95         sm.node_expr(src.as_ref())
  96     }
  97
  98     fn pat_id(&self, pat: &ast::Pat) -> Option<PatId> {
  99         // FIXME: macros, see `expr_id`
 100         let src = InFile { file_id: self.file_id, value: pat };
 101         self.body_source_map.as_ref()?.node_pat(src)
 102     }
 103
 104     fn expand_expr(
 105         &self,
 106         db: &dyn HirDatabase,
 107         expr: InFile<ast::MacroCall>,
 108     ) -> Option<InFile<ast::Expr>> {
 109         let macro_file = self.body_source_map.as_ref()?.node_macro_file(expr.as_ref())?;
 110         let expanded = db.parse_or_expand(macro_file)?;
 111
 112         let res = match ast::MacroCall::cast(expanded.clone()) {
 113             Some(call) => self.expand_expr(db, InFile::new(macro_file, call))?,
 114             _ => InFile::new(macro_file, ast::Expr::cast(expanded)?),
 115         };
 116         Some(res)
 117     }
 118
 119     pub(crate) fn type_of_expr(&self, db: &dyn HirDatabase, expr: &ast::Expr) -> Option<Type> {
 120         let expr_id = self.expr_id(db, expr)?;
 121         let ty = self.infer.as_ref()?[expr_id].clone();
 122         Type::new_with_resolver(db, &self.resolver, ty)
 123     }
 124
 125     pub(crate) fn type_of_pat(&self, db: &dyn HirDatabase, pat: &ast::Pat) -> Option<Type> {
 126         let pat_id = self.pat_id(pat)?;
 127         let ty = self.infer.as_ref()?[pat_id].clone();
 128         Type::new_with_resolver(db, &self.resolver, ty)
 129     }
 130
 131     pub(crate) fn type_of_self(
 132         &self,
 133         db: &dyn HirDatabase,
 134         param: &ast::SelfParam,
 135     ) -> Option<Type> {
 136         let src = InFile { file_id: self.file_id, value: param };
 137         let pat_id = self.body_source_map.as_ref()?.node_self_param(src)?;
 138         let ty = self.infer.as_ref()?[pat_id].clone();
 139         Type::new_with_resolver(db, &self.resolver, ty)
 140     }
 141
 142     pub(crate) fn resolve_method_call(
 143         &self,
 144         db: &dyn HirDatabase,
 145         call: &ast::MethodCallExpr,
 146     ) -> Option<(FunctionId, Substitution)> {
 147         let expr_id = self.expr_id(db, &call.clone().into())?;
 148         self.infer.as_ref()?.method_resolution(expr_id)
 149     }
 150
 151     pub(crate) fn resolve_field(
 152         &self,
 153         db: &dyn HirDatabase,
 154         field: &ast::FieldExpr,
 155     ) -> Option<Field> {
 156         let expr_id = self.expr_id(db, &field.clone().into())?;
 157         self.infer.as_ref()?.field_resolution(expr_id).map(|it| it.into())
 158     }
 159
 160     pub(crate) fn resolve_record_field(
 161         &self,
 162         db: &dyn HirDatabase,
 163         field: &ast::RecordExprField,
 164     ) -> Option<(Field, Option<Local>)> {
 165         let record_expr = ast::RecordExpr::cast(field.syntax().parent().and_then(|p| p.parent())?)?;
 166         let expr = ast::Expr::from(record_expr);
 167         let expr_id = self.body_source_map.as_ref()?.node_expr(InFile::new(self.file_id, &expr))?;
 168
 169         let local_name = field.field_name()?.as_name();
 170         let local = if field.name_ref().is_some() {
 171             None
 172         } else {
 173             let path = ModPath::from_segments(PathKind::Plain, once(local_name.clone()));
 174             match self.resolver.resolve_path_in_value_ns_fully(db.upcast(), &path) {
 175                 Some(ValueNs::LocalBinding(pat_id)) => {
 176                     Some(Local { pat_id, parent: self.resolver.body_owner()? })
 177                 }
 178                 _ => None,
 179             }
 180         };
 181         let variant = self.infer.as_ref()?.variant_resolution_for_expr(expr_id)?;
 182         let variant_data = variant.variant_data(db.upcast());
 183         let field = FieldId { parent: variant, local_id: variant_data.field(&local_name)? };
 184         Some((field.into(), local))
 185     }
 186
 187     pub(crate) fn resolve_record_pat_field(
 188         &self,
 189         db: &dyn HirDatabase,
 190         field: &ast::RecordPatField,
 191     ) -> Option<Field> {
 192         let field_name = field.field_name()?.as_name();
 193         let record_pat = ast::RecordPat::cast(field.syntax().parent().and_then(|p| p.parent())?)?;
 194         let pat_id = self.pat_id(&record_pat.into())?;
 195         let variant = self.infer.as_ref()?.variant_resolution_for_pat(pat_id)?;
 196         let variant_data = variant.variant_data(db.upcast());
 197         let field = FieldId { parent: variant, local_id: variant_data.field(&field_name)? };
 198         Some(field.into())
 199     }
 200
 201     pub(crate) fn resolve_macro_call(
 202         &self,
 203         db: &dyn HirDatabase,
 204         macro_call: InFile<&ast::MacroCall>,
 205     ) -> Option<MacroDef> {
 206         let ctx = body::LowerCtx::new(db.upcast(), macro_call.file_id);
 207         let path = macro_call.value.path().and_then(|ast| Path::from_src(ast, &ctx))?;
 208         self.resolver.resolve_path_as_macro(db.upcast(), path.mod_path()).map(|it| it.into())
 209     }
 210
 211     pub(crate) fn resolve_bind_pat_to_const(
 212         &self,
 213         db: &dyn HirDatabase,
 214         pat: &ast::IdentPat,
 215     ) -> Option<ModuleDef> {
 216         let pat_id = self.pat_id(&pat.clone().into())?;
 217         let body = self.body.as_ref()?;
 218         let path = match &body[pat_id] {
 219             Pat::Path(path) => path,
 220             _ => return None,
 221         };
 222         let res = resolve_hir_path(db, &self.resolver, &path)?;
 223         match res {
 224             PathResolution::Def(def) => Some(def),
 225             _ => None,
 226         }
 227     }
 228
 229     pub(crate) fn resolve_path(
 230         &self,
 231         db: &dyn HirDatabase,
 232         path: &ast::Path,
 233     ) -> Option<PathResolution> {
 234         let parent = || path.syntax().parent();
 235         let mut prefer_value_ns = false;
 236         if let Some(path_expr) = parent().and_then(ast::PathExpr::cast) {
 237             let expr_id = self.expr_id(db, &path_expr.into())?;
 238             let infer = self.infer.as_ref()?;
 239             if let Some(assoc) = infer.assoc_resolutions_for_expr(expr_id) {
 240                 return Some(PathResolution::AssocItem(assoc.into()));
 241             }
 242             if let Some(VariantId::EnumVariantId(variant)) =
 243                 infer.variant_resolution_for_expr(expr_id)
 244             {
 245                 return Some(PathResolution::Def(ModuleDef::Variant(variant.into())));
 246             }
 247             prefer_value_ns = true;
 248         }
 249
 250         if let Some(path_pat) = parent().and_then(ast::PathPat::cast) {
 251             let pat_id = self.pat_id(&path_pat.into())?;
 252             if let Some(assoc) = self.infer.as_ref()?.assoc_resolutions_for_pat(pat_id) {
 253                 return Some(PathResolution::AssocItem(assoc.into()));
 254             }
 255             if let Some(VariantId::EnumVariantId(variant)) =
 256                 self.infer.as_ref()?.variant_resolution_for_pat(pat_id)
 257             {
 258                 return Some(PathResolution::Def(ModuleDef::Variant(variant.into())));
 259             }
 260         }
 261
 262         if let Some(rec_lit) = parent().and_then(ast::RecordExpr::cast) {
 263             let expr_id = self.expr_id(db, &rec_lit.into())?;
 264             if let Some(VariantId::EnumVariantId(variant)) =
 265                 self.infer.as_ref()?.variant_resolution_for_expr(expr_id)
 266             {
 267                 return Some(PathResolution::Def(ModuleDef::Variant(variant.into())));
 268             }
 269         }
 270
 271         if let Some(pat) = parent()
 272             .and_then(ast::RecordPat::cast)
 273             .map(ast::Pat::from)
 274             .or_else(|| parent().and_then(ast::TupleStructPat::cast).map(ast::Pat::from))
 275         {
 276             let pat_id = self.pat_id(&pat)?;
 277             if let Some(VariantId::EnumVariantId(variant)) =
 278                 self.infer.as_ref()?.variant_resolution_for_pat(pat_id)
 279             {
 280                 return Some(PathResolution::Def(ModuleDef::Variant(variant.into())));
 281             }
 282         }
 283
 284         // This must be a normal source file rather than macro file.
 285         let hygiene = Hygiene::new(db.upcast(), self.file_id);
 286         let ctx = body::LowerCtx::with_hygiene(db.upcast(), &hygiene);
 287         let hir_path = Path::from_src(path.clone(), &ctx)?;
 288
 289         // Case where path is a qualifier of another path, e.g. foo::bar::Baz where we
 290         // trying to resolve foo::bar.
 291         if let Some(outer_path) = parent().and_then(ast::Path::cast) {
 292             if let Some(qualifier) = outer_path.qualifier() {
 293                 if path == &qualifier {
 294                     return resolve_hir_path_qualifier(db, &self.resolver, &hir_path);
 295                 }
 296             }
 297         }
 298
 299         resolve_hir_path_(db, &self.resolver, &hir_path, prefer_value_ns)
 300     }
 301
 302     pub(crate) fn record_literal_missing_fields(
 303         &self,
 304         db: &dyn HirDatabase,
 305         literal: &ast::RecordExpr,
 306     ) -> Option<Vec<(Field, Type)>> {
 307         let krate = self.resolver.krate()?;
 308         let body = self.body.as_ref()?;
 309         let infer = self.infer.as_ref()?;
 310
 311         let expr_id = self.expr_id(db, &literal.clone().into())?;
 312         let substs = infer.type_of_expr[expr_id].as_adt()?.1;
 313
 314         let (variant, missing_fields, _exhaustive) =
 315             record_literal_missing_fields(db, infer, expr_id, &body[expr_id])?;
 316         let res = self.missing_fields(db, krate, &substs, variant, missing_fields);
 317         Some(res)
 318     }
 319
 320     pub(crate) fn record_pattern_missing_fields(
 321         &self,
 322         db: &dyn HirDatabase,
 323         pattern: &ast::RecordPat,
 324     ) -> Option<Vec<(Field, Type)>> {
 325         let krate = self.resolver.krate()?;
 326         let body = self.body.as_ref()?;
 327         let infer = self.infer.as_ref()?;
 328
 329         let pat_id = self.pat_id(&pattern.clone().into())?;
 330         let substs = infer.type_of_pat[pat_id].as_adt()?.1;
 331
 332         let (variant, missing_fields, _exhaustive) =
 333             record_pattern_missing_fields(db, infer, pat_id, &body[pat_id])?;
 334         let res = self.missing_fields(db, krate, &substs, variant, missing_fields);
 335         Some(res)
 336     }
 337
 338     fn missing_fields(
 339         &self,
 340         db: &dyn HirDatabase,
 341         krate: CrateId,
 342         substs: &Substitution,
 343         variant: VariantId,
 344         missing_fields: Vec<LocalFieldId>,
 345     ) -> Vec<(Field, Type)> {
 346         let field_types = db.field_types(variant);
 347
 348         missing_fields
 349             .into_iter()
 350             .map(|local_id| {
 351                 let field = FieldId { parent: variant, local_id };
 352                 let ty = field_types[local_id].clone().substitute(&Interner, substs);
 353                 (field.into(), Type::new_with_resolver_inner(db, krate, &self.resolver, ty))
 354             })
 355             .collect()
 356     }
 357
 358     pub(crate) fn expand(
 359         &self,
 360         db: &dyn HirDatabase,
 361         macro_call: InFile<&ast::MacroCall>,
 362     ) -> Option<HirFileId> {
 363         let krate = self.resolver.krate()?;
 364         let macro_call_id = macro_call.as_call_id(db.upcast(), krate, |path| {
 365             self.resolver.resolve_path_as_macro(db.upcast(), &path)
 366         })?;
 367         Some(macro_call_id.as_file()).filter(|it| it.expansion_level(db.upcast()) < 64)
 368     }
 369
 370     pub(crate) fn resolve_variant(
 371         &self,
 372         db: &dyn HirDatabase,
 373         record_lit: ast::RecordExpr,
 374     ) -> Option<VariantId> {
 375         let infer = self.infer.as_ref()?;
 376         let expr_id = self.expr_id(db, &record_lit.into())?;
 377         infer.variant_resolution_for_expr(expr_id)
 378     }
 379 }
 380
 381 fn scope_for(
 382     scopes: &ExprScopes,
 383     source_map: &BodySourceMap,
 384     node: InFile<&SyntaxNode>,
 385 ) -> Option<ScopeId> {
 386     node.value
 387         .ancestors()
 388         .filter_map(ast::Expr::cast)
 389         .filter_map(|it| source_map.node_expr(InFile::new(node.file_id, &it)))
 390         .find_map(|it| scopes.scope_for(it))
 391 }
 392
 393 fn scope_for_offset(
 394     db: &dyn HirDatabase,
 395     scopes: &ExprScopes,
 396     source_map: &BodySourceMap,
 397     offset: InFile<TextSize>,
 398 ) -> Option<ScopeId> {
 399     scopes
 400         .scope_by_expr()
 401         .iter()
 402         .filter_map(|(id, scope)| {
 403             let source = source_map.expr_syntax(*id).ok()?;
 404             // FIXME: correctly handle macro expansion
 405             if source.file_id != offset.file_id {
 406                 return None;
 407             }
 408             let root = source.file_syntax(db.upcast());
 409             let node = source.value.to_node(&root);
 410             Some((node.syntax().text_range(), scope))
 411         })
 412         // find containing scope
 413         .min_by_key(|(expr_range, _scope)| {
 414             (
 415                 !(expr_range.start() <= offset.value && offset.value <= expr_range.end()),
 416                 expr_range.len(),
 417             )
 418         })
 419         .map(|(expr_range, scope)| {
 420             adjust(db, scopes, source_map, expr_range, offset).unwrap_or(*scope)
 421         })
 422 }
 423
 424 // XXX: during completion, cursor might be outside of any particular
 425 // expression. Try to figure out the correct scope...
 426 fn adjust(
 427     db: &dyn HirDatabase,
 428     scopes: &ExprScopes,
 429     source_map: &BodySourceMap,
 430     expr_range: TextRange,
 431     offset: InFile<TextSize>,
 432 ) -> Option<ScopeId> {
 433     let child_scopes = scopes
 434         .scope_by_expr()
 435         .iter()
 436         .filter_map(|(id, scope)| {
 437             let source = source_map.expr_syntax(*id).ok()?;
 438             // FIXME: correctly handle macro expansion
 439             if source.file_id != offset.file_id {
 440                 return None;
 441             }
 442             let root = source.file_syntax(db.upcast());
 443             let node = source.value.to_node(&root);
 444             Some((node.syntax().text_range(), scope))
 445         })
 446         .filter(|&(range, _)| {
 447             range.start() <= offset.value && expr_range.contains_range(range) && range != expr_range
 448         });
 449
 450     child_scopes
 451         .max_by(|&(r1, _), &(r2, _)| {
 452             if r1.contains_range(r2) {
 453                 std::cmp::Ordering::Greater
 454             } else if r2.contains_range(r1) {
 455                 std::cmp::Ordering::Less
 456             } else {
 457                 r1.start().cmp(&r2.start())
 458             }
 459         })
 460         .map(|(_ptr, scope)| *scope)
 461 }
 462
 463 #[inline]
 464 pub(crate) fn resolve_hir_path(
 465     db: &dyn HirDatabase,
 466     resolver: &Resolver,
 467     path: &Path,
 468 ) -> Option<PathResolution> {
 469     resolve_hir_path_(db, resolver, path, false)
 470 }
 471
 472 fn resolve_hir_path_(
 473     db: &dyn HirDatabase,
 474     resolver: &Resolver,
 475     path: &Path,
 476     prefer_value_ns: bool,
 477 ) -> Option<PathResolution> {
 478     let types = || {
 479         let (ty, unresolved) = match path.type_anchor() {
 480             Some(type_ref) => {
 481                 let (_, res) = TyLoweringContext::new(db, resolver).lower_ty_ext(type_ref);
 482                 res.map(|ty_ns| (ty_ns, path.segments().first()))
 483             }
 484             None => {
 485                 let (ty, remaining) =
 486                     resolver.resolve_path_in_type_ns(db.upcast(), path.mod_path())?;
 487                 match remaining {
 488                     Some(remaining) if remaining > 1 => None,
 489                     _ => Some((ty, path.segments().get(1))),
 490                 }
 491             }
 492         }?;
 493         let res = match ty {
 494             TypeNs::SelfType(it) => PathResolution::SelfType(it.into()),
 495             TypeNs::GenericParam(id) => PathResolution::TypeParam(TypeParam { id }),
 496             TypeNs::AdtSelfType(it) | TypeNs::AdtId(it) => {
 497                 PathResolution::Def(Adt::from(it).into())
 498             }
 499             TypeNs::EnumVariantId(it) => PathResolution::Def(Variant::from(it).into()),
 500             TypeNs::TypeAliasId(it) => PathResolution::Def(TypeAlias::from(it).into()),
 501             TypeNs::BuiltinType(it) => PathResolution::Def(BuiltinType::from(it).into()),
 502             TypeNs::TraitId(it) => PathResolution::Def(Trait::from(it).into()),
 503         };
 504         match unresolved {
 505             Some(unresolved) => res
 506                 .assoc_type_shorthand_candidates(db, |name, alias| {
 507                     (name == unresolved.name).then(|| alias)
 508                 })
 509                 .map(TypeAlias::from)
 510                 .map(Into::into)
 511                 .map(PathResolution::Def),
 512             None => Some(res),
 513         }
 514     };
 515
 516     let body_owner = resolver.body_owner();
 517     let values = || {
 518         resolver.resolve_path_in_value_ns_fully(db.upcast(), path.mod_path()).and_then(|val| {
 519             let res = match val {
 520                 ValueNs::LocalBinding(pat_id) => {
 521                     let var = Local { parent: body_owner?, pat_id };
 522                     PathResolution::Local(var)
 523                 }
 524                 ValueNs::FunctionId(it) => PathResolution::Def(Function::from(it).into()),
 525                 ValueNs::ConstId(it) => PathResolution::Def(Const::from(it).into()),
 526                 ValueNs::StaticId(it) => PathResolution::Def(Static::from(it).into()),
 527                 ValueNs::StructId(it) => PathResolution::Def(Struct::from(it).into()),
 528                 ValueNs::EnumVariantId(it) => PathResolution::Def(Variant::from(it).into()),
 529                 ValueNs::ImplSelf(impl_id) => PathResolution::SelfType(impl_id.into()),
 530                 ValueNs::GenericParam(it) => PathResolution::ConstParam(it.into()),
 531             };
 532             Some(res)
 533         })
 534     };
 535
 536     let items = || {
 537         resolver
 538             .resolve_module_path_in_items(db.upcast(), path.mod_path())
 539             .take_types()
 540             .map(|it| PathResolution::Def(it.into()))
 541     };
 542
 543     let macros = || {
 544         resolver
 545             .resolve_path_as_macro(db.upcast(), path.mod_path())
 546             .map(|def| PathResolution::Macro(def.into()))
 547     };
 548
 549     if prefer_value_ns { values().or_else(types) } else { types().or_else(values) }
 550         .or_else(items)
 551         .or_else(macros)
 552 }
 553
 554 /// Resolves a path where we know it is a qualifier of another path.
 555 ///
 556 /// For example, if we have:
 557 /// ```
 558 /// mod my {
 559 ///     pub mod foo {
 560 ///         struct Bar;
 561 ///     }
 562 ///
 563 ///     pub fn foo() {}
 564 /// }
 565 /// ```
 566 /// then we know that `foo` in `my::foo::Bar` refers to the module, not the function.
 567 fn resolve_hir_path_qualifier(
 568     db: &dyn HirDatabase,
 569     resolver: &Resolver,
 570     path: &Path,
 571 ) -> Option<PathResolution> {
 572     let items = resolver
 573         .resolve_module_path_in_items(db.upcast(), path.mod_path())
 574         .take_types()
 575         .map(|it| PathResolution::Def(it.into()));
 576
 577     if items.is_some() {
 578         return items;
 579     }
 580
 581     resolver.resolve_path_in_type_ns_fully(db.upcast(), path.mod_path()).map(|ty| match ty {
 582         TypeNs::SelfType(it) => PathResolution::SelfType(it.into()),
 583         TypeNs::GenericParam(id) => PathResolution::TypeParam(TypeParam { id }),
 584         TypeNs::AdtSelfType(it) | TypeNs::AdtId(it) => PathResolution::Def(Adt::from(it).into()),
 585         TypeNs::EnumVariantId(it) => PathResolution::Def(Variant::from(it).into()),
 586         TypeNs::TypeAliasId(it) => PathResolution::Def(TypeAlias::from(it).into()),
 587         TypeNs::BuiltinType(it) => PathResolution::Def(BuiltinType::from(it).into()),
 588         TypeNs::TraitId(it) => PathResolution::Def(Trait::from(it).into()),
 589     })
 590 }