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-rw-r--r--crates/hir_ty/src/builder.rs2
-rw-r--r--crates/hir_ty/src/chalk_ext.rs229
-rw-r--r--crates/hir_ty/src/diagnostics/expr.rs9
-rw-r--r--crates/hir_ty/src/diagnostics/match_check.rs2
-rw-r--r--crates/hir_ty/src/diagnostics/unsafe_check.rs4
-rw-r--r--crates/hir_ty/src/infer.rs7
-rw-r--r--crates/hir_ty/src/infer/coerce.rs2
-rw-r--r--crates/hir_ty/src/infer/expr.rs20
-rw-r--r--crates/hir_ty/src/infer/pat.rs12
-rw-r--r--crates/hir_ty/src/infer/path.rs4
-rw-r--r--crates/hir_ty/src/lib.rs214
-rw-r--r--crates/hir_ty/src/lower.rs5
-rw-r--r--crates/hir_ty/src/method_resolution.rs2
-rw-r--r--crates/hir_ty/src/traits/chalk.rs2
-rw-r--r--crates/hir_ty/src/utils.rs13
15 files changed, 266 insertions, 261 deletions
diff --git a/crates/hir_ty/src/builder.rs b/crates/hir_ty/src/builder.rs
index 791915fe0..09512d1ce 100644
--- a/crates/hir_ty/src/builder.rs
+++ b/crates/hir_ty/src/builder.rs
@@ -13,7 +13,7 @@ use smallvec::SmallVec;
13use crate::{ 13use crate::{
14 db::HirDatabase, primitive, to_assoc_type_id, to_chalk_trait_id, utils::generics, Binders, 14 db::HirDatabase, primitive, to_assoc_type_id, to_chalk_trait_id, utils::generics, Binders,
15 CallableSig, FnPointer, FnSig, FnSubst, GenericArg, Interner, ProjectionTy, Substitution, 15 CallableSig, FnPointer, FnSig, FnSubst, GenericArg, Interner, ProjectionTy, Substitution,
16 TraitRef, Ty, TyDefId, TyKind, TypeWalk, ValueTyDefId, 16 TraitRef, Ty, TyDefId, TyExt, TyKind, TypeWalk, ValueTyDefId,
17}; 17};
18 18
19/// This is a builder for `Ty` or anything that needs a `Substitution`. 19/// This is a builder for `Ty` or anything that needs a `Substitution`.
diff --git a/crates/hir_ty/src/chalk_ext.rs b/crates/hir_ty/src/chalk_ext.rs
index 0f4cb43e9..8e8a1aa48 100644
--- a/crates/hir_ty/src/chalk_ext.rs
+++ b/crates/hir_ty/src/chalk_ext.rs
@@ -1,20 +1,243 @@
1//! Various extensions traits for Chalk types. 1//! Various extensions traits for Chalk types.
2 2
3use hir_def::{AssocContainerId, Lookup, TraitId}; 3use chalk_ir::Mutability;
4use hir_def::{
5 type_ref::Rawness, AssocContainerId, FunctionId, GenericDefId, HasModule, Lookup, TraitId,
6};
4 7
5use crate::{ 8use crate::{
6 db::HirDatabase, from_assoc_type_id, to_chalk_trait_id, Interner, ProjectionTy, TraitRef, Ty, 9 db::HirDatabase, from_assoc_type_id, from_chalk_trait_id, from_foreign_def_id,
7 TyKind, 10 from_placeholder_idx, to_chalk_trait_id, AdtId, AliasEq, AliasTy, Binders, CallableDefId,
11 CallableSig, ImplTraitId, Interner, Lifetime, ProjectionTy, QuantifiedWhereClause,
12 Substitution, TraitRef, Ty, TyBuilder, TyKind, WhereClause,
8}; 13};
9 14
10pub trait TyExt { 15pub trait TyExt {
11 fn is_unit(&self) -> bool; 16 fn is_unit(&self) -> bool;
17 fn is_never(&self) -> bool;
18 fn is_unknown(&self) -> bool;
19
20 fn as_adt(&self) -> Option<(hir_def::AdtId, &Substitution)>;
21 fn as_tuple(&self) -> Option<&Substitution>;
22 fn as_fn_def(&self, db: &dyn HirDatabase) -> Option<FunctionId>;
23 fn as_reference(&self) -> Option<(&Ty, Lifetime, Mutability)>;
24 fn as_reference_or_ptr(&self) -> Option<(&Ty, Rawness, Mutability)>;
25 fn as_generic_def(&self, db: &dyn HirDatabase) -> Option<GenericDefId>;
26
27 fn callable_def(&self, db: &dyn HirDatabase) -> Option<CallableDefId>;
28 fn callable_sig(&self, db: &dyn HirDatabase) -> Option<CallableSig>;
29
30 fn strip_references(&self) -> &Ty;
31
32 /// If this is a `dyn Trait`, returns that trait.
33 fn dyn_trait(&self) -> Option<TraitId>;
34
35 fn impl_trait_bounds(&self, db: &dyn HirDatabase) -> Option<Vec<QuantifiedWhereClause>>;
36 fn associated_type_parent_trait(&self, db: &dyn HirDatabase) -> Option<TraitId>;
12} 37}
13 38
14impl TyExt for Ty { 39impl TyExt for Ty {
15 fn is_unit(&self) -> bool { 40 fn is_unit(&self) -> bool {
16 matches!(self.kind(&Interner), TyKind::Tuple(0, _)) 41 matches!(self.kind(&Interner), TyKind::Tuple(0, _))
17 } 42 }
43
44 fn is_never(&self) -> bool {
45 matches!(self.kind(&Interner), TyKind::Never)
46 }
47
48 fn is_unknown(&self) -> bool {
49 matches!(self.kind(&Interner), TyKind::Error)
50 }
51
52 fn as_adt(&self) -> Option<(hir_def::AdtId, &Substitution)> {
53 match self.kind(&Interner) {
54 TyKind::Adt(AdtId(adt), parameters) => Some((*adt, parameters)),
55 _ => None,
56 }
57 }
58
59 fn as_tuple(&self) -> Option<&Substitution> {
60 match self.kind(&Interner) {
61 TyKind::Tuple(_, substs) => Some(substs),
62 _ => None,
63 }
64 }
65
66 fn as_fn_def(&self, db: &dyn HirDatabase) -> Option<FunctionId> {
67 if let Some(CallableDefId::FunctionId(func)) = self.callable_def(db) {
68 Some(func)
69 } else {
70 None
71 }
72 }
73 fn as_reference(&self) -> Option<(&Ty, Lifetime, Mutability)> {
74 match self.kind(&Interner) {
75 TyKind::Ref(mutability, lifetime, ty) => Some((ty, *lifetime, *mutability)),
76 _ => None,
77 }
78 }
79
80 fn as_reference_or_ptr(&self) -> Option<(&Ty, Rawness, Mutability)> {
81 match self.kind(&Interner) {
82 TyKind::Ref(mutability, _, ty) => Some((ty, Rawness::Ref, *mutability)),
83 TyKind::Raw(mutability, ty) => Some((ty, Rawness::RawPtr, *mutability)),
84 _ => None,
85 }
86 }
87
88 fn as_generic_def(&self, db: &dyn HirDatabase) -> Option<GenericDefId> {
89 match *self.kind(&Interner) {
90 TyKind::Adt(AdtId(adt), ..) => Some(adt.into()),
91 TyKind::FnDef(callable, ..) => {
92 Some(db.lookup_intern_callable_def(callable.into()).into())
93 }
94 TyKind::AssociatedType(type_alias, ..) => Some(from_assoc_type_id(type_alias).into()),
95 TyKind::Foreign(type_alias, ..) => Some(from_foreign_def_id(type_alias).into()),
96 _ => None,
97 }
98 }
99
100 fn callable_def(&self, db: &dyn HirDatabase) -> Option<CallableDefId> {
101 match self.kind(&Interner) {
102 &TyKind::FnDef(def, ..) => Some(db.lookup_intern_callable_def(def.into())),
103 _ => None,
104 }
105 }
106
107 fn callable_sig(&self, db: &dyn HirDatabase) -> Option<CallableSig> {
108 match self.kind(&Interner) {
109 TyKind::Function(fn_ptr) => Some(CallableSig::from_fn_ptr(fn_ptr)),
110 TyKind::FnDef(def, parameters) => {
111 let callable_def = db.lookup_intern_callable_def((*def).into());
112 let sig = db.callable_item_signature(callable_def);
113 Some(sig.substitute(&Interner, &parameters))
114 }
115 TyKind::Closure(.., substs) => {
116 let sig_param = substs.at(&Interner, 0).assert_ty_ref(&Interner);
117 sig_param.callable_sig(db)
118 }
119 _ => None,
120 }
121 }
122
123 fn dyn_trait(&self) -> Option<TraitId> {
124 let trait_ref = match self.kind(&Interner) {
125 TyKind::Dyn(dyn_ty) => dyn_ty.bounds.skip_binders().interned().get(0).and_then(|b| {
126 match b.skip_binders() {
127 WhereClause::Implemented(trait_ref) => Some(trait_ref),
128 _ => None,
129 }
130 }),
131 _ => None,
132 }?;
133 Some(from_chalk_trait_id(trait_ref.trait_id))
134 }
135
136 fn strip_references(&self) -> &Ty {
137 let mut t: &Ty = self;
138 while let TyKind::Ref(_mutability, _lifetime, ty) = t.kind(&Interner) {
139 t = ty;
140 }
141 t
142 }
143
144 fn impl_trait_bounds(&self, db: &dyn HirDatabase) -> Option<Vec<QuantifiedWhereClause>> {
145 match self.kind(&Interner) {
146 TyKind::OpaqueType(opaque_ty_id, ..) => {
147 match db.lookup_intern_impl_trait_id((*opaque_ty_id).into()) {
148 ImplTraitId::AsyncBlockTypeImplTrait(def, _expr) => {
149 let krate = def.module(db.upcast()).krate();
150 if let Some(future_trait) = db
151 .lang_item(krate, "future_trait".into())
152 .and_then(|item| item.as_trait())
153 {
154 // This is only used by type walking.
155 // Parameters will be walked outside, and projection predicate is not used.
156 // So just provide the Future trait.
157 let impl_bound = Binders::empty(
158 &Interner,
159 WhereClause::Implemented(TraitRef {
160 trait_id: to_chalk_trait_id(future_trait),
161 substitution: Substitution::empty(&Interner),
162 }),
163 );
164 Some(vec![impl_bound])
165 } else {
166 None
167 }
168 }
169 ImplTraitId::ReturnTypeImplTrait(..) => None,
170 }
171 }
172 TyKind::Alias(AliasTy::Opaque(opaque_ty)) => {
173 let predicates = match db.lookup_intern_impl_trait_id(opaque_ty.opaque_ty_id.into())
174 {
175 ImplTraitId::ReturnTypeImplTrait(func, idx) => {
176 db.return_type_impl_traits(func).map(|it| {
177 let data = (*it)
178 .as_ref()
179 .map(|rpit| rpit.impl_traits[idx as usize].bounds.clone());
180 data.substitute(&Interner, &opaque_ty.substitution)
181 })
182 }
183 // It always has an parameter for Future::Output type.
184 ImplTraitId::AsyncBlockTypeImplTrait(..) => unreachable!(),
185 };
186
187 predicates.map(|it| it.into_value_and_skipped_binders().0)
188 }
189 TyKind::Placeholder(idx) => {
190 let id = from_placeholder_idx(db, *idx);
191 let generic_params = db.generic_params(id.parent);
192 let param_data = &generic_params.types[id.local_id];
193 match param_data.provenance {
194 hir_def::generics::TypeParamProvenance::ArgumentImplTrait => {
195 let substs = TyBuilder::type_params_subst(db, id.parent);
196 let predicates = db
197 .generic_predicates(id.parent)
198 .into_iter()
199 .map(|pred| pred.clone().substitute(&Interner, &substs))
200 .filter(|wc| match &wc.skip_binders() {
201 WhereClause::Implemented(tr) => {
202 tr.self_type_parameter(&Interner) == self
203 }
204 WhereClause::AliasEq(AliasEq {
205 alias: AliasTy::Projection(proj),
206 ty: _,
207 }) => proj.self_type_parameter(&Interner) == self,
208 _ => false,
209 })
210 .collect::<Vec<_>>();
211
212 Some(predicates)
213 }
214 _ => None,
215 }
216 }
217 _ => None,
218 }
219 }
220
221 fn associated_type_parent_trait(&self, db: &dyn HirDatabase) -> Option<TraitId> {
222 match self.kind(&Interner) {
223 TyKind::AssociatedType(id, ..) => {
224 match from_assoc_type_id(*id).lookup(db.upcast()).container {
225 AssocContainerId::TraitId(trait_id) => Some(trait_id),
226 _ => None,
227 }
228 }
229 TyKind::Alias(AliasTy::Projection(projection_ty)) => {
230 match from_assoc_type_id(projection_ty.associated_ty_id)
231 .lookup(db.upcast())
232 .container
233 {
234 AssocContainerId::TraitId(trait_id) => Some(trait_id),
235 _ => None,
236 }
237 }
238 _ => None,
239 }
240 }
18} 241}
19 242
20pub trait ProjectionTyExt { 243pub trait ProjectionTyExt {
diff --git a/crates/hir_ty/src/diagnostics/expr.rs b/crates/hir_ty/src/diagnostics/expr.rs
index d7bf9fdf7..79602c3dd 100644
--- a/crates/hir_ty/src/diagnostics/expr.rs
+++ b/crates/hir_ty/src/diagnostics/expr.rs
@@ -14,7 +14,6 @@ use crate::{
14 MismatchedArgCount, MissingFields, MissingMatchArms, MissingOkOrSomeInTailExpr, 14 MismatchedArgCount, MissingFields, MissingMatchArms, MissingOkOrSomeInTailExpr,
15 MissingPatFields, RemoveThisSemicolon, 15 MissingPatFields, RemoveThisSemicolon,
16 }, 16 },
17 utils::variant_data,
18 AdtId, InferenceResult, Interner, TyExt, TyKind, 17 AdtId, InferenceResult, Interner, TyExt, TyKind,
19}; 18};
20 19
@@ -104,7 +103,7 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
104 let root = source_ptr.file_syntax(db.upcast()); 103 let root = source_ptr.file_syntax(db.upcast());
105 if let ast::Expr::RecordExpr(record_expr) = &source_ptr.value.to_node(&root) { 104 if let ast::Expr::RecordExpr(record_expr) = &source_ptr.value.to_node(&root) {
106 if let Some(_) = record_expr.record_expr_field_list() { 105 if let Some(_) = record_expr.record_expr_field_list() {
107 let variant_data = variant_data(db.upcast(), variant_def); 106 let variant_data = variant_def.variant_data(db.upcast());
108 let missed_fields = missed_fields 107 let missed_fields = missed_fields
109 .into_iter() 108 .into_iter()
110 .map(|idx| variant_data.fields()[idx].name.clone()) 109 .map(|idx| variant_data.fields()[idx].name.clone())
@@ -135,7 +134,7 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
135 let root = source_ptr.file_syntax(db.upcast()); 134 let root = source_ptr.file_syntax(db.upcast());
136 if let ast::Pat::RecordPat(record_pat) = expr.to_node(&root) { 135 if let ast::Pat::RecordPat(record_pat) = expr.to_node(&root) {
137 if let Some(_) = record_pat.record_pat_field_list() { 136 if let Some(_) = record_pat.record_pat_field_list() {
138 let variant_data = variant_data(db.upcast(), variant_def); 137 let variant_data = variant_def.variant_data(db.upcast());
139 let missed_fields = missed_fields 138 let missed_fields = missed_fields
140 .into_iter() 139 .into_iter()
141 .map(|idx| variant_data.fields()[idx].name.clone()) 140 .map(|idx| variant_data.fields()[idx].name.clone())
@@ -453,7 +452,7 @@ pub fn record_literal_missing_fields(
453 return None; 452 return None;
454 } 453 }
455 454
456 let variant_data = variant_data(db.upcast(), variant_def); 455 let variant_data = variant_def.variant_data(db.upcast());
457 456
458 let specified_fields: FxHashSet<_> = fields.iter().map(|f| &f.name).collect(); 457 let specified_fields: FxHashSet<_> = fields.iter().map(|f| &f.name).collect();
459 let missed_fields: Vec<LocalFieldId> = variant_data 458 let missed_fields: Vec<LocalFieldId> = variant_data
@@ -483,7 +482,7 @@ pub fn record_pattern_missing_fields(
483 return None; 482 return None;
484 } 483 }
485 484
486 let variant_data = variant_data(db.upcast(), variant_def); 485 let variant_data = variant_def.variant_data(db.upcast());
487 486
488 let specified_fields: FxHashSet<_> = fields.iter().map(|f| &f.name).collect(); 487 let specified_fields: FxHashSet<_> = fields.iter().map(|f| &f.name).collect();
489 let missed_fields: Vec<LocalFieldId> = variant_data 488 let missed_fields: Vec<LocalFieldId> = variant_data
diff --git a/crates/hir_ty/src/diagnostics/match_check.rs b/crates/hir_ty/src/diagnostics/match_check.rs
index 34291578a..e9762622f 100644
--- a/crates/hir_ty/src/diagnostics/match_check.rs
+++ b/crates/hir_ty/src/diagnostics/match_check.rs
@@ -227,7 +227,7 @@ use hir_def::{
227use la_arena::Idx; 227use la_arena::Idx;
228use smallvec::{smallvec, SmallVec}; 228use smallvec::{smallvec, SmallVec};
229 229
230use crate::{db::HirDatabase, AdtId, InferenceResult, Interner, TyKind}; 230use crate::{db::HirDatabase, AdtId, InferenceResult, Interner, TyExt, TyKind};
231 231
232#[derive(Debug, Clone, Copy)] 232#[derive(Debug, Clone, Copy)]
233/// Either a pattern from the source code being analyzed, represented as 233/// Either a pattern from the source code being analyzed, represented as
diff --git a/crates/hir_ty/src/diagnostics/unsafe_check.rs b/crates/hir_ty/src/diagnostics/unsafe_check.rs
index b5efe9df5..ed97dc0e3 100644
--- a/crates/hir_ty/src/diagnostics/unsafe_check.rs
+++ b/crates/hir_ty/src/diagnostics/unsafe_check.rs
@@ -11,7 +11,9 @@ use hir_def::{
11}; 11};
12use hir_expand::diagnostics::DiagnosticSink; 12use hir_expand::diagnostics::DiagnosticSink;
13 13
14use crate::{db::HirDatabase, diagnostics::MissingUnsafe, InferenceResult, Interner, TyKind}; 14use crate::{
15 db::HirDatabase, diagnostics::MissingUnsafe, InferenceResult, Interner, TyExt, TyKind,
16};
15 17
16pub(super) struct UnsafeValidator<'a, 'b: 'a> { 18pub(super) struct UnsafeValidator<'a, 'b: 'a> {
17 owner: DefWithBodyId, 19 owner: DefWithBodyId,
diff --git a/crates/hir_ty/src/infer.rs b/crates/hir_ty/src/infer.rs
index 1c3faf5cb..c63878e7a 100644
--- a/crates/hir_ty/src/infer.rs
+++ b/crates/hir_ty/src/infer.rs
@@ -42,7 +42,7 @@ use super::{
42}; 42};
43use crate::{ 43use crate::{
44 db::HirDatabase, infer::diagnostics::InferenceDiagnostic, lower::ImplTraitLoweringMode, 44 db::HirDatabase, infer::diagnostics::InferenceDiagnostic, lower::ImplTraitLoweringMode,
45 to_assoc_type_id, AliasEq, AliasTy, Interner, TyBuilder, TyKind, 45 to_assoc_type_id, AliasEq, AliasTy, Interner, TyBuilder, TyExt, TyKind,
46}; 46};
47 47
48// This lint has a false positive here. See the link below for details. 48// This lint has a false positive here. See the link below for details.
@@ -131,8 +131,6 @@ pub struct InferenceResult {
131 method_resolutions: FxHashMap<ExprId, FunctionId>, 131 method_resolutions: FxHashMap<ExprId, FunctionId>,
132 /// For each field access expr, records the field it resolves to. 132 /// For each field access expr, records the field it resolves to.
133 field_resolutions: FxHashMap<ExprId, FieldId>, 133 field_resolutions: FxHashMap<ExprId, FieldId>,
134 /// For each field in record literal, records the field it resolves to.
135 record_field_resolutions: FxHashMap<ExprId, FieldId>,
136 record_pat_field_resolutions: FxHashMap<PatId, FieldId>, 134 record_pat_field_resolutions: FxHashMap<PatId, FieldId>,
137 /// For each struct literal, records the variant it resolves to. 135 /// For each struct literal, records the variant it resolves to.
138 variant_resolutions: FxHashMap<ExprOrPatId, VariantId>, 136 variant_resolutions: FxHashMap<ExprOrPatId, VariantId>,
@@ -153,9 +151,6 @@ impl InferenceResult {
153 pub fn field_resolution(&self, expr: ExprId) -> Option<FieldId> { 151 pub fn field_resolution(&self, expr: ExprId) -> Option<FieldId> {
154 self.field_resolutions.get(&expr).copied() 152 self.field_resolutions.get(&expr).copied()
155 } 153 }
156 pub fn record_field_resolution(&self, expr: ExprId) -> Option<FieldId> {
157 self.record_field_resolutions.get(&expr).copied()
158 }
159 pub fn record_pat_field_resolution(&self, pat: PatId) -> Option<FieldId> { 154 pub fn record_pat_field_resolution(&self, pat: PatId) -> Option<FieldId> {
160 self.record_pat_field_resolutions.get(&pat).copied() 155 self.record_pat_field_resolutions.get(&pat).copied()
161 } 156 }
diff --git a/crates/hir_ty/src/infer/coerce.rs b/crates/hir_ty/src/infer/coerce.rs
index d6c48870a..159a53a63 100644
--- a/crates/hir_ty/src/infer/coerce.rs
+++ b/crates/hir_ty/src/infer/coerce.rs
@@ -7,7 +7,7 @@
7use chalk_ir::{cast::Cast, Mutability, TyVariableKind}; 7use chalk_ir::{cast::Cast, Mutability, TyVariableKind};
8use hir_def::lang_item::LangItemTarget; 8use hir_def::lang_item::LangItemTarget;
9 9
10use crate::{autoderef, Interner, Solution, Ty, TyBuilder, TyKind}; 10use crate::{autoderef, Interner, Solution, Ty, TyBuilder, TyExt, TyKind};
11 11
12use super::{InEnvironment, InferenceContext}; 12use super::{InEnvironment, InferenceContext};
13 13
diff --git a/crates/hir_ty/src/infer/expr.rs b/crates/hir_ty/src/infer/expr.rs
index 53d94fd0d..9ab0fa212 100644
--- a/crates/hir_ty/src/infer/expr.rs
+++ b/crates/hir_ty/src/infer/expr.rs
@@ -21,9 +21,10 @@ use crate::{
21 primitive::{self, UintTy}, 21 primitive::{self, UintTy},
22 static_lifetime, to_chalk_trait_id, 22 static_lifetime, to_chalk_trait_id,
23 traits::{chalk::from_chalk, FnTrait}, 23 traits::{chalk::from_chalk, FnTrait},
24 utils::{generics, variant_data, Generics}, 24 utils::{generics, Generics},
25 AdtId, Binders, CallableDefId, FnPointer, FnSig, FnSubst, InEnvironment, Interner, 25 AdtId, Binders, CallableDefId, FnPointer, FnSig, FnSubst, InEnvironment, Interner,
26 ProjectionTyExt, Rawness, Scalar, Substitution, TraitRef, Ty, TyBuilder, TyKind, TypeWalk, 26 ProjectionTyExt, Rawness, Scalar, Substitution, TraitRef, Ty, TyBuilder, TyExt, TyKind,
27 TypeWalk,
27}; 28};
28 29
29use super::{ 30use super::{
@@ -317,7 +318,13 @@ impl<'a> InferenceContext<'a> {
317 self.normalize_associated_types_in(ret_ty) 318 self.normalize_associated_types_in(ret_ty)
318 } 319 }
319 Expr::MethodCall { receiver, args, method_name, generic_args } => self 320 Expr::MethodCall { receiver, args, method_name, generic_args } => self
320 .infer_method_call(tgt_expr, *receiver, &args, &method_name, generic_args.as_ref()), 321 .infer_method_call(
322 tgt_expr,
323 *receiver,
324 &args,
325 &method_name,
326 generic_args.as_deref(),
327 ),
321 Expr::Match { expr, arms } => { 328 Expr::Match { expr, arms } => {
322 let input_ty = self.infer_expr(*expr, &Expectation::none()); 329 let input_ty = self.infer_expr(*expr, &Expectation::none());
323 330
@@ -398,7 +405,7 @@ impl<'a> InferenceContext<'a> {
398 TyKind::Never.intern(&Interner) 405 TyKind::Never.intern(&Interner)
399 } 406 }
400 Expr::RecordLit { path, fields, spread } => { 407 Expr::RecordLit { path, fields, spread } => {
401 let (ty, def_id) = self.resolve_variant(path.as_ref()); 408 let (ty, def_id) = self.resolve_variant(path.as_deref());
402 if let Some(variant) = def_id { 409 if let Some(variant) = def_id {
403 self.write_variant_resolution(tgt_expr.into(), variant); 410 self.write_variant_resolution(tgt_expr.into(), variant);
404 } 411 }
@@ -407,7 +414,7 @@ impl<'a> InferenceContext<'a> {
407 414
408 let substs = ty.substs().cloned().unwrap_or_else(|| Substitution::empty(&Interner)); 415 let substs = ty.substs().cloned().unwrap_or_else(|| Substitution::empty(&Interner));
409 let field_types = def_id.map(|it| self.db.field_types(it)).unwrap_or_default(); 416 let field_types = def_id.map(|it| self.db.field_types(it)).unwrap_or_default();
410 let variant_data = def_id.map(|it| variant_data(self.db.upcast(), it)); 417 let variant_data = def_id.map(|it| it.variant_data(self.db.upcast()));
411 for field in fields.iter() { 418 for field in fields.iter() {
412 let field_def = 419 let field_def =
413 variant_data.as_ref().and_then(|it| match it.field(&field.name) { 420 variant_data.as_ref().and_then(|it| match it.field(&field.name) {
@@ -419,9 +426,6 @@ impl<'a> InferenceContext<'a> {
419 None 426 None
420 } 427 }
421 }); 428 });
422 if let Some(field_def) = field_def {
423 self.result.record_field_resolutions.insert(field.expr, field_def);
424 }
425 let field_ty = field_def.map_or(self.err_ty(), |it| { 429 let field_ty = field_def.map_or(self.err_ty(), |it| {
426 field_types[it.local_id].clone().substitute(&Interner, &substs) 430 field_types[it.local_id].clone().substitute(&Interner, &substs)
427 }); 431 });
diff --git a/crates/hir_ty/src/infer/pat.rs b/crates/hir_ty/src/infer/pat.rs
index c1d7a6b76..942f70edf 100644
--- a/crates/hir_ty/src/infer/pat.rs
+++ b/crates/hir_ty/src/infer/pat.rs
@@ -13,8 +13,8 @@ use hir_expand::name::Name;
13 13
14use super::{BindingMode, Expectation, InferenceContext}; 14use super::{BindingMode, Expectation, InferenceContext};
15use crate::{ 15use crate::{
16 lower::lower_to_chalk_mutability, static_lifetime, utils::variant_data, Interner, Substitution, 16 lower::lower_to_chalk_mutability, static_lifetime, Interner, Substitution, Ty, TyBuilder,
17 Ty, TyBuilder, TyKind, 17 TyExt, TyKind,
18}; 18};
19 19
20impl<'a> InferenceContext<'a> { 20impl<'a> InferenceContext<'a> {
@@ -28,7 +28,7 @@ impl<'a> InferenceContext<'a> {
28 ellipsis: Option<usize>, 28 ellipsis: Option<usize>,
29 ) -> Ty { 29 ) -> Ty {
30 let (ty, def) = self.resolve_variant(path); 30 let (ty, def) = self.resolve_variant(path);
31 let var_data = def.map(|it| variant_data(self.db.upcast(), it)); 31 let var_data = def.map(|it| it.variant_data(self.db.upcast()));
32 if let Some(variant) = def { 32 if let Some(variant) = def {
33 self.write_variant_resolution(id.into(), variant); 33 self.write_variant_resolution(id.into(), variant);
34 } 34 }
@@ -68,7 +68,7 @@ impl<'a> InferenceContext<'a> {
68 id: PatId, 68 id: PatId,
69 ) -> Ty { 69 ) -> Ty {
70 let (ty, def) = self.resolve_variant(path); 70 let (ty, def) = self.resolve_variant(path);
71 let var_data = def.map(|it| variant_data(self.db.upcast(), it)); 71 let var_data = def.map(|it| it.variant_data(self.db.upcast()));
72 if let Some(variant) = def { 72 if let Some(variant) = def {
73 self.write_variant_resolution(id.into(), variant); 73 self.write_variant_resolution(id.into(), variant);
74 } 74 }
@@ -174,7 +174,7 @@ impl<'a> InferenceContext<'a> {
174 TyKind::Ref(mutability, static_lifetime(), subty).intern(&Interner) 174 TyKind::Ref(mutability, static_lifetime(), subty).intern(&Interner)
175 } 175 }
176 Pat::TupleStruct { path: p, args: subpats, ellipsis } => self.infer_tuple_struct_pat( 176 Pat::TupleStruct { path: p, args: subpats, ellipsis } => self.infer_tuple_struct_pat(
177 p.as_ref(), 177 p.as_deref(),
178 subpats, 178 subpats,
179 expected, 179 expected,
180 default_bm, 180 default_bm,
@@ -182,7 +182,7 @@ impl<'a> InferenceContext<'a> {
182 *ellipsis, 182 *ellipsis,
183 ), 183 ),
184 Pat::Record { path: p, args: fields, ellipsis: _ } => { 184 Pat::Record { path: p, args: fields, ellipsis: _ } => {
185 self.infer_record_pat(p.as_ref(), fields, expected, default_bm, pat) 185 self.infer_record_pat(p.as_deref(), fields, expected, default_bm, pat)
186 } 186 }
187 Pat::Path(path) => { 187 Pat::Path(path) => {
188 // FIXME use correct resolver for the surrounding expression 188 // FIXME use correct resolver for the surrounding expression
diff --git a/crates/hir_ty/src/infer/path.rs b/crates/hir_ty/src/infer/path.rs
index 14f705173..b19d67bb1 100644
--- a/crates/hir_ty/src/infer/path.rs
+++ b/crates/hir_ty/src/infer/path.rs
@@ -10,7 +10,9 @@ use hir_def::{
10}; 10};
11use hir_expand::name::Name; 11use hir_expand::name::Name;
12 12
13use crate::{method_resolution, Interner, Substitution, Ty, TyBuilder, TyKind, ValueTyDefId}; 13use crate::{
14 method_resolution, Interner, Substitution, Ty, TyBuilder, TyExt, TyKind, ValueTyDefId,
15};
14 16
15use super::{ExprOrPatId, InferenceContext, TraitRef}; 17use super::{ExprOrPatId, InferenceContext, TraitRef};
16 18
diff --git a/crates/hir_ty/src/lib.rs b/crates/hir_ty/src/lib.rs
index a2a5bcc07..f5b658cba 100644
--- a/crates/hir_ty/src/lib.rs
+++ b/crates/hir_ty/src/lib.rs
@@ -30,13 +30,11 @@ mod test_db;
30 30
31use std::sync::Arc; 31use std::sync::Arc;
32 32
33use chalk_ir::UintTy;
34use itertools::Itertools;
35
36use base_db::salsa; 33use base_db::salsa;
34use chalk_ir::UintTy;
37use hir_def::{ 35use hir_def::{
38 expr::ExprId, type_ref::Rawness, AssocContainerId, ConstParamId, FunctionId, GenericDefId, 36 expr::ExprId, type_ref::Rawness, ConstParamId, LifetimeParamId, TraitId, TypeAliasId,
39 HasModule, LifetimeParamId, Lookup, TraitId, TypeAliasId, TypeParamId, 37 TypeParamId,
40}; 38};
41 39
42use crate::{db::HirDatabase, display::HirDisplay, utils::generics}; 40use crate::{db::HirDatabase, display::HirDisplay, utils::generics};
@@ -171,65 +169,6 @@ impl CallableSig {
171} 169}
172 170
173impl Ty { 171impl Ty {
174 pub fn as_reference(&self) -> Option<(&Ty, Lifetime, Mutability)> {
175 match self.kind(&Interner) {
176 TyKind::Ref(mutability, lifetime, ty) => Some((ty, *lifetime, *mutability)),
177 _ => None,
178 }
179 }
180
181 pub fn as_reference_or_ptr(&self) -> Option<(&Ty, Rawness, Mutability)> {
182 match self.kind(&Interner) {
183 TyKind::Ref(mutability, _, ty) => Some((ty, Rawness::Ref, *mutability)),
184 TyKind::Raw(mutability, ty) => Some((ty, Rawness::RawPtr, *mutability)),
185 _ => None,
186 }
187 }
188
189 pub fn strip_references(&self) -> &Ty {
190 let mut t: &Ty = self;
191
192 while let TyKind::Ref(_mutability, _lifetime, ty) = t.kind(&Interner) {
193 t = ty;
194 }
195
196 t
197 }
198
199 pub fn as_adt(&self) -> Option<(hir_def::AdtId, &Substitution)> {
200 match self.kind(&Interner) {
201 TyKind::Adt(AdtId(adt), parameters) => Some((*adt, parameters)),
202 _ => None,
203 }
204 }
205
206 pub fn as_tuple(&self) -> Option<&Substitution> {
207 match self.kind(&Interner) {
208 TyKind::Tuple(_, substs) => Some(substs),
209 _ => None,
210 }
211 }
212
213 pub fn as_generic_def(&self, db: &dyn HirDatabase) -> Option<GenericDefId> {
214 match *self.kind(&Interner) {
215 TyKind::Adt(AdtId(adt), ..) => Some(adt.into()),
216 TyKind::FnDef(callable, ..) => {
217 Some(db.lookup_intern_callable_def(callable.into()).into())
218 }
219 TyKind::AssociatedType(type_alias, ..) => Some(from_assoc_type_id(type_alias).into()),
220 TyKind::Foreign(type_alias, ..) => Some(from_foreign_def_id(type_alias).into()),
221 _ => None,
222 }
223 }
224
225 pub fn is_never(&self) -> bool {
226 matches!(self.kind(&Interner), TyKind::Never)
227 }
228
229 pub fn is_unknown(&self) -> bool {
230 matches!(self.kind(&Interner), TyKind::Error)
231 }
232
233 pub fn equals_ctor(&self, other: &Ty) -> bool { 172 pub fn equals_ctor(&self, other: &Ty) -> bool {
234 match (self.kind(&Interner), other.kind(&Interner)) { 173 match (self.kind(&Interner), other.kind(&Interner)) {
235 (TyKind::Adt(adt, ..), TyKind::Adt(adt2, ..)) => adt == adt2, 174 (TyKind::Adt(adt, ..), TyKind::Adt(adt2, ..)) => adt == adt2,
@@ -260,24 +199,6 @@ impl Ty {
260 } 199 }
261 } 200 }
262 201
263 /// If this is a `dyn Trait` type, this returns the `Trait` part.
264 fn dyn_trait_ref(&self) -> Option<&TraitRef> {
265 match self.kind(&Interner) {
266 TyKind::Dyn(dyn_ty) => dyn_ty.bounds.skip_binders().interned().get(0).and_then(|b| {
267 match b.skip_binders() {
268 WhereClause::Implemented(trait_ref) => Some(trait_ref),
269 _ => None,
270 }
271 }),
272 _ => None,
273 }
274 }
275
276 /// If this is a `dyn Trait`, returns that trait.
277 pub fn dyn_trait(&self) -> Option<TraitId> {
278 self.dyn_trait_ref().map(|it| it.trait_id).map(from_chalk_trait_id)
279 }
280
281 fn builtin_deref(&self) -> Option<Ty> { 202 fn builtin_deref(&self) -> Option<Ty> {
282 match self.kind(&Interner) { 203 match self.kind(&Interner) {
283 TyKind::Ref(.., ty) => Some(ty.clone()), 204 TyKind::Ref(.., ty) => Some(ty.clone()),
@@ -286,37 +207,6 @@ impl Ty {
286 } 207 }
287 } 208 }
288 209
289 pub fn callable_def(&self, db: &dyn HirDatabase) -> Option<CallableDefId> {
290 match self.kind(&Interner) {
291 &TyKind::FnDef(def, ..) => Some(db.lookup_intern_callable_def(def.into())),
292 _ => None,
293 }
294 }
295
296 pub fn as_fn_def(&self, db: &dyn HirDatabase) -> Option<FunctionId> {
297 if let Some(CallableDefId::FunctionId(func)) = self.callable_def(db) {
298 Some(func)
299 } else {
300 None
301 }
302 }
303
304 pub fn callable_sig(&self, db: &dyn HirDatabase) -> Option<CallableSig> {
305 match self.kind(&Interner) {
306 TyKind::Function(fn_ptr) => Some(CallableSig::from_fn_ptr(fn_ptr)),
307 TyKind::FnDef(def, parameters) => {
308 let callable_def = db.lookup_intern_callable_def((*def).into());
309 let sig = db.callable_item_signature(callable_def);
310 Some(sig.substitute(&Interner, &parameters))
311 }
312 TyKind::Closure(.., substs) => {
313 let sig_param = substs.at(&Interner, 0).assert_ty_ref(&Interner);
314 sig_param.callable_sig(db)
315 }
316 _ => None,
317 }
318 }
319
320 /// Returns the type parameters of this type if it has some (i.e. is an ADT 210 /// Returns the type parameters of this type if it has some (i.e. is an ADT
321 /// or function); so if `self` is `Option<u32>`, this returns the `u32`. 211 /// or function); so if `self` is `Option<u32>`, this returns the `u32`.
322 pub fn substs(&self) -> Option<&Substitution> { 212 pub fn substs(&self) -> Option<&Substitution> {
@@ -344,104 +234,6 @@ impl Ty {
344 _ => None, 234 _ => None,
345 } 235 }
346 } 236 }
347
348 pub fn impl_trait_bounds(&self, db: &dyn HirDatabase) -> Option<Vec<QuantifiedWhereClause>> {
349 match self.kind(&Interner) {
350 TyKind::OpaqueType(opaque_ty_id, ..) => {
351 match db.lookup_intern_impl_trait_id((*opaque_ty_id).into()) {
352 ImplTraitId::AsyncBlockTypeImplTrait(def, _expr) => {
353 let krate = def.module(db.upcast()).krate();
354 if let Some(future_trait) = db
355 .lang_item(krate, "future_trait".into())
356 .and_then(|item| item.as_trait())
357 {
358 // This is only used by type walking.
359 // Parameters will be walked outside, and projection predicate is not used.
360 // So just provide the Future trait.
361 let impl_bound = Binders::empty(
362 &Interner,
363 WhereClause::Implemented(TraitRef {
364 trait_id: to_chalk_trait_id(future_trait),
365 substitution: Substitution::empty(&Interner),
366 }),
367 );
368 Some(vec![impl_bound])
369 } else {
370 None
371 }
372 }
373 ImplTraitId::ReturnTypeImplTrait(..) => None,
374 }
375 }
376 TyKind::Alias(AliasTy::Opaque(opaque_ty)) => {
377 let predicates = match db.lookup_intern_impl_trait_id(opaque_ty.opaque_ty_id.into())
378 {
379 ImplTraitId::ReturnTypeImplTrait(func, idx) => {
380 db.return_type_impl_traits(func).map(|it| {
381 let data = (*it)
382 .as_ref()
383 .map(|rpit| rpit.impl_traits[idx as usize].bounds.clone());
384 data.substitute(&Interner, &opaque_ty.substitution)
385 })
386 }
387 // It always has an parameter for Future::Output type.
388 ImplTraitId::AsyncBlockTypeImplTrait(..) => unreachable!(),
389 };
390
391 predicates.map(|it| it.into_value_and_skipped_binders().0)
392 }
393 TyKind::Placeholder(idx) => {
394 let id = from_placeholder_idx(db, *idx);
395 let generic_params = db.generic_params(id.parent);
396 let param_data = &generic_params.types[id.local_id];
397 match param_data.provenance {
398 hir_def::generics::TypeParamProvenance::ArgumentImplTrait => {
399 let substs = TyBuilder::type_params_subst(db, id.parent);
400 let predicates = db
401 .generic_predicates(id.parent)
402 .into_iter()
403 .map(|pred| pred.clone().substitute(&Interner, &substs))
404 .filter(|wc| match &wc.skip_binders() {
405 WhereClause::Implemented(tr) => {
406 tr.self_type_parameter(&Interner) == self
407 }
408 WhereClause::AliasEq(AliasEq {
409 alias: AliasTy::Projection(proj),
410 ty: _,
411 }) => proj.self_type_parameter(&Interner) == self,
412 _ => false,
413 })
414 .collect_vec();
415
416 Some(predicates)
417 }
418 _ => None,
419 }
420 }
421 _ => None,
422 }
423 }
424
425 pub fn associated_type_parent_trait(&self, db: &dyn HirDatabase) -> Option<TraitId> {
426 match self.kind(&Interner) {
427 TyKind::AssociatedType(id, ..) => {
428 match from_assoc_type_id(*id).lookup(db.upcast()).container {
429 AssocContainerId::TraitId(trait_id) => Some(trait_id),
430 _ => None,
431 }
432 }
433 TyKind::Alias(AliasTy::Projection(projection_ty)) => {
434 match from_assoc_type_id(projection_ty.associated_ty_id)
435 .lookup(db.upcast())
436 .container
437 {
438 AssocContainerId::TraitId(trait_id) => Some(trait_id),
439 _ => None,
440 }
441 }
442 _ => None,
443 }
444 }
445} 237}
446 238
447#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)] 239#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)]
diff --git a/crates/hir_ty/src/lower.rs b/crates/hir_ty/src/lower.rs
index 8be1bcddb..4ca6aa538 100644
--- a/crates/hir_ty/src/lower.rs
+++ b/crates/hir_ty/src/lower.rs
@@ -30,8 +30,7 @@ use crate::{
30 dummy_usize_const, static_lifetime, to_assoc_type_id, to_chalk_trait_id, to_placeholder_idx, 30 dummy_usize_const, static_lifetime, to_assoc_type_id, to_chalk_trait_id, to_placeholder_idx,
31 traits::chalk::{Interner, ToChalk}, 31 traits::chalk::{Interner, ToChalk},
32 utils::{ 32 utils::{
33 all_super_trait_refs, associated_type_by_name_including_super_traits, generics, 33 all_super_trait_refs, associated_type_by_name_including_super_traits, generics, Generics,
34 variant_data, Generics,
35 }, 34 },
36 AliasEq, AliasTy, Binders, BoundVar, CallableSig, DebruijnIndex, DynTy, FnPointer, FnSig, 35 AliasEq, AliasTy, Binders, BoundVar, CallableSig, DebruijnIndex, DynTy, FnPointer, FnSig,
37 FnSubst, ImplTraitId, OpaqueTy, PolyFnSig, ProjectionTy, QuantifiedWhereClause, 36 FnSubst, ImplTraitId, OpaqueTy, PolyFnSig, ProjectionTy, QuantifiedWhereClause,
@@ -879,7 +878,7 @@ pub(crate) fn field_types_query(
879 db: &dyn HirDatabase, 878 db: &dyn HirDatabase,
880 variant_id: VariantId, 879 variant_id: VariantId,
881) -> Arc<ArenaMap<LocalFieldId, Binders<Ty>>> { 880) -> Arc<ArenaMap<LocalFieldId, Binders<Ty>>> {
882 let var_data = variant_data(db.upcast(), variant_id); 881 let var_data = variant_id.variant_data(db.upcast());
883 let (resolver, def): (_, GenericDefId) = match variant_id { 882 let (resolver, def): (_, GenericDefId) = match variant_id {
884 VariantId::StructId(it) => (it.resolver(db.upcast()), it.into()), 883 VariantId::StructId(it) => (it.resolver(db.upcast()), it.into()),
885 VariantId::UnionId(it) => (it.resolver(db.upcast()), it.into()), 884 VariantId::UnionId(it) => (it.resolver(db.upcast()), it.into()),
diff --git a/crates/hir_ty/src/method_resolution.rs b/crates/hir_ty/src/method_resolution.rs
index 5042bfbca..ee725fd46 100644
--- a/crates/hir_ty/src/method_resolution.rs
+++ b/crates/hir_ty/src/method_resolution.rs
@@ -22,7 +22,7 @@ use crate::{
22 static_lifetime, 22 static_lifetime,
23 utils::all_super_traits, 23 utils::all_super_traits,
24 AdtId, Canonical, CanonicalVarKinds, DebruijnIndex, FnPointer, FnSig, ForeignDefId, 24 AdtId, Canonical, CanonicalVarKinds, DebruijnIndex, FnPointer, FnSig, ForeignDefId,
25 InEnvironment, Interner, Scalar, Substitution, TraitEnvironment, Ty, TyBuilder, TyKind, 25 InEnvironment, Interner, Scalar, Substitution, TraitEnvironment, Ty, TyBuilder, TyExt, TyKind,
26 TypeWalk, 26 TypeWalk,
27}; 27};
28 28
diff --git a/crates/hir_ty/src/traits/chalk.rs b/crates/hir_ty/src/traits/chalk.rs
index 5a8b5cd86..f03b92422 100644
--- a/crates/hir_ty/src/traits/chalk.rs
+++ b/crates/hir_ty/src/traits/chalk.rs
@@ -22,7 +22,7 @@ use crate::{
22 to_assoc_type_id, to_chalk_trait_id, 22 to_assoc_type_id, to_chalk_trait_id,
23 utils::generics, 23 utils::generics,
24 AliasEq, AliasTy, BoundVar, CallableDefId, DebruijnIndex, FnDefId, ProjectionTy, Substitution, 24 AliasEq, AliasTy, BoundVar, CallableDefId, DebruijnIndex, FnDefId, ProjectionTy, Substitution,
25 TraitRef, Ty, TyBuilder, TyKind, WhereClause, 25 TraitRef, Ty, TyBuilder, TyExt, TyKind, WhereClause,
26}; 26};
27use mapping::{ 27use mapping::{
28 convert_where_clauses, generic_predicate_to_inline_bound, make_binders, TypeAliasAsValue, 28 convert_where_clauses, generic_predicate_to_inline_bound, make_binders, TypeAliasAsValue,
diff --git a/crates/hir_ty/src/utils.rs b/crates/hir_ty/src/utils.rs
index d11708299..0a424f607 100644
--- a/crates/hir_ty/src/utils.rs
+++ b/crates/hir_ty/src/utils.rs
@@ -4,7 +4,6 @@ use std::sync::Arc;
4 4
5use chalk_ir::{BoundVar, DebruijnIndex}; 5use chalk_ir::{BoundVar, DebruijnIndex};
6use hir_def::{ 6use hir_def::{
7 adt::VariantData,
8 db::DefDatabase, 7 db::DefDatabase,
9 generics::{ 8 generics::{
10 GenericParams, TypeParamData, TypeParamProvenance, WherePredicate, WherePredicateTypeTarget, 9 GenericParams, TypeParamData, TypeParamProvenance, WherePredicate, WherePredicateTypeTarget,
@@ -13,7 +12,7 @@ use hir_def::{
13 path::Path, 12 path::Path,
14 resolver::{HasResolver, TypeNs}, 13 resolver::{HasResolver, TypeNs},
15 type_ref::TypeRef, 14 type_ref::TypeRef,
16 AssocContainerId, GenericDefId, Lookup, TraitId, TypeAliasId, TypeParamId, VariantId, 15 AssocContainerId, GenericDefId, Lookup, TraitId, TypeAliasId, TypeParamId,
17}; 16};
18use hir_expand::name::{name, Name}; 17use hir_expand::name::{name, Name};
19 18
@@ -136,16 +135,6 @@ pub(super) fn associated_type_by_name_including_super_traits(
136 }) 135 })
137} 136}
138 137
139pub(super) fn variant_data(db: &dyn DefDatabase, var: VariantId) -> Arc<VariantData> {
140 match var {
141 VariantId::StructId(it) => db.struct_data(it).variant_data.clone(),
142 VariantId::UnionId(it) => db.union_data(it).variant_data.clone(),
143 VariantId::EnumVariantId(it) => {
144 db.enum_data(it.parent).variants[it.local_id].variant_data.clone()
145 }
146 }
147}
148
149/// Helper for mutating `Arc<[T]>` (i.e. `Arc::make_mut` for Arc slices). 138/// Helper for mutating `Arc<[T]>` (i.e. `Arc::make_mut` for Arc slices).
150/// The underlying values are cloned if there are other strong references. 139/// The underlying values are cloned if there are other strong references.
151pub(crate) fn make_mut_slice<T: Clone>(a: &mut Arc<[T]>) -> &mut [T] { 140pub(crate) fn make_mut_slice<T: Clone>(a: &mut Arc<[T]>) -> &mut [T] {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 14:24:44 +0000