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-rw-r--r--crates/hir_ty/src/chalk_cast.rs16
-rw-r--r--crates/hir_ty/src/chalk_db.rs (renamed from crates/hir_ty/src/traits/chalk.rs)150
-rw-r--r--crates/hir_ty/src/db.rs52
-rw-r--r--crates/hir_ty/src/diagnostics.rs2
-rw-r--r--crates/hir_ty/src/display.rs14
-rw-r--r--crates/hir_ty/src/infer/expr.rs3
-rw-r--r--crates/hir_ty/src/interner.rs (renamed from crates/hir_ty/src/traits/chalk/interner.rs)42
-rw-r--r--crates/hir_ty/src/lib.rs108
-rw-r--r--crates/hir_ty/src/lower.rs7
-rw-r--r--crates/hir_ty/src/mapping.rs154
-rw-r--r--crates/hir_ty/src/primitive.rs5
-rw-r--r--crates/hir_ty/src/tls.rs (renamed from crates/hir_ty/src/traits/chalk/tls.rs)14
-rw-r--r--crates/hir_ty/src/traits.rs18
-rw-r--r--crates/hir_ty/src/traits/chalk/mapping.rs131
14 files changed, 355 insertions, 361 deletions
diff --git a/crates/hir_ty/src/chalk_cast.rs b/crates/hir_ty/src/chalk_cast.rs
deleted file mode 100644
index f27dee3fd..000000000
--- a/crates/hir_ty/src/chalk_cast.rs
+++ /dev/null
@@ -1,16 +0,0 @@
1//! Implementations of the Chalk `Cast` trait for our types.
2
3use chalk_ir::interner::HasInterner;
4
5use crate::{CallableSig, ReturnTypeImplTraits};
6
7macro_rules! has_interner {
8 ($t:ty) => {
9 impl HasInterner for $t {
10 type Interner = crate::Interner;
11 }
12 };
13}
14
15has_interner!(CallableSig);
16has_interner!(ReturnTypeImplTraits);
diff --git a/crates/hir_ty/src/traits/chalk.rs b/crates/hir_ty/src/chalk_db.rs
index cd511477b..8f054d06b 100644
--- a/crates/hir_ty/src/traits/chalk.rs
+++ b/crates/hir_ty/src/chalk_db.rs
@@ -1,50 +1,47 @@
1//! Conversion code from/to Chalk. 1//! The implementation of `RustIrDatabase` for Chalk, which provides information
2//! about the code that Chalk needs.
2use std::sync::Arc; 3use std::sync::Arc;
3 4
4use log::debug; 5use log::debug;
5 6
6use chalk_ir::{fold::shift::Shift, CanonicalVarKinds}; 7use chalk_ir::{cast::Cast, fold::shift::Shift, CanonicalVarKinds};
7use chalk_solve::rust_ir::{self, OpaqueTyDatumBound, WellKnownTrait}; 8use chalk_solve::rust_ir::{self, OpaqueTyDatumBound, WellKnownTrait};
8 9
9use base_db::{salsa::InternKey, CrateId}; 10use base_db::CrateId;
10use hir_def::{ 11use hir_def::{
11 lang_item::{lang_attr, LangItemTarget}, 12 lang_item::{lang_attr, LangItemTarget},
12 AssocContainerId, AssocItemId, HasModule, Lookup, TypeAliasId, 13 AssocContainerId, AssocItemId, GenericDefId, HasModule, Lookup, TypeAliasId,
13}; 14};
14use hir_expand::name::name; 15use hir_expand::name::name;
15 16
16use super::ChalkContext;
17use crate::{ 17use crate::{
18 db::HirDatabase, 18 db::HirDatabase,
19 display::HirDisplay, 19 display::HirDisplay,
20 from_assoc_type_id, make_only_type_binders, 20 from_assoc_type_id, from_chalk_trait_id, make_only_type_binders,
21 mapping::{from_chalk, ToChalk, TypeAliasAsValue},
21 method_resolution::{TyFingerprint, ALL_FLOAT_FPS, ALL_INT_FPS}, 22 method_resolution::{TyFingerprint, ALL_FLOAT_FPS, ALL_INT_FPS},
22 to_assoc_type_id, to_chalk_trait_id, 23 to_assoc_type_id, to_chalk_trait_id,
24 traits::ChalkContext,
23 utils::generics, 25 utils::generics,
24 AliasEq, AliasTy, BoundVar, CallableDefId, DebruijnIndex, FnDefId, ProjectionTy, Substitution, 26 AliasEq, AliasTy, BoundVar, CallableDefId, DebruijnIndex, FnDefId, Interner, ProjectionTy,
25 TraitRef, TraitRefExt, Ty, TyBuilder, TyExt, TyKind, WhereClause, 27 ProjectionTyExt, QuantifiedWhereClause, Substitution, TraitRef, TraitRefExt, Ty, TyBuilder,
28 TyExt, TyKind, WhereClause,
26}; 29};
27use mapping::{convert_where_clauses, generic_predicate_to_inline_bound, TypeAliasAsValue};
28 30
29pub use self::interner::Interner; 31pub(crate) type AssociatedTyDatum = chalk_solve::rust_ir::AssociatedTyDatum<Interner>;
30pub(crate) use self::interner::*; 32pub(crate) type TraitDatum = chalk_solve::rust_ir::TraitDatum<Interner>;
31 33pub(crate) type StructDatum = chalk_solve::rust_ir::AdtDatum<Interner>;
32pub(super) mod tls; 34pub(crate) type ImplDatum = chalk_solve::rust_ir::ImplDatum<Interner>;
33mod interner; 35pub(crate) type OpaqueTyDatum = chalk_solve::rust_ir::OpaqueTyDatum<Interner>;
34mod mapping; 36
35 37pub(crate) type AssocTypeId = chalk_ir::AssocTypeId<Interner>;
36pub(crate) trait ToChalk { 38pub(crate) type TraitId = chalk_ir::TraitId<Interner>;
37 type Chalk; 39pub(crate) type AdtId = chalk_ir::AdtId<Interner>;
38 fn to_chalk(self, db: &dyn HirDatabase) -> Self::Chalk; 40pub(crate) type ImplId = chalk_ir::ImplId<Interner>;
39 fn from_chalk(db: &dyn HirDatabase, chalk: Self::Chalk) -> Self; 41pub(crate) type AssociatedTyValueId = chalk_solve::rust_ir::AssociatedTyValueId<Interner>;
40} 42pub(crate) type AssociatedTyValue = chalk_solve::rust_ir::AssociatedTyValue<Interner>;
41 43pub(crate) type FnDefDatum = chalk_solve::rust_ir::FnDefDatum<Interner>;
42pub(crate) fn from_chalk<T, ChalkT>(db: &dyn HirDatabase, chalk: ChalkT) -> T 44pub(crate) type Variances = chalk_ir::Variances<Interner>;
43where
44 T: ToChalk<Chalk = ChalkT>,
45{
46 T::from_chalk(db, chalk)
47}
48 45
49impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> { 46impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> {
50 fn associated_ty_data(&self, id: AssocTypeId) -> Arc<AssociatedTyDatum> { 47 fn associated_ty_data(&self, id: AssocTypeId) -> Arc<AssociatedTyDatum> {
@@ -82,7 +79,7 @@ impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> {
82 binders: &CanonicalVarKinds<Interner>, 79 binders: &CanonicalVarKinds<Interner>,
83 ) -> Vec<ImplId> { 80 ) -> Vec<ImplId> {
84 debug!("impls_for_trait {:?}", trait_id); 81 debug!("impls_for_trait {:?}", trait_id);
85 let trait_: hir_def::TraitId = from_chalk(self.db, trait_id); 82 let trait_: hir_def::TraitId = from_chalk_trait_id(trait_id);
86 83
87 let ty: Ty = parameters[0].assert_ty_ref(&Interner).clone(); 84 let ty: Ty = parameters[0].assert_ty_ref(&Interner).clone();
88 85
@@ -164,7 +161,7 @@ impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> {
164 Some(LangItemTarget::TraitId(trait_)) => trait_, 161 Some(LangItemTarget::TraitId(trait_)) => trait_,
165 _ => return None, 162 _ => return None,
166 }; 163 };
167 Some(trait_.to_chalk(self.db)) 164 Some(to_chalk_trait_id(trait_))
168 } 165 }
169 166
170 fn program_clauses_for_env( 167 fn program_clauses_for_env(
@@ -311,7 +308,7 @@ impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> {
311 } 308 }
312 309
313 fn trait_name(&self, trait_id: chalk_ir::TraitId<Interner>) -> String { 310 fn trait_name(&self, trait_id: chalk_ir::TraitId<Interner>) -> String {
314 let id = from_chalk(self.db, trait_id); 311 let id = from_chalk_trait_id(trait_id);
315 self.db.trait_data(id).name.to_string() 312 self.db.trait_data(id).name.to_string()
316 } 313 }
317 fn adt_name(&self, chalk_ir::AdtId(adt_id): AdtId) -> String { 314 fn adt_name(&self, chalk_ir::AdtId(adt_id): AdtId) -> String {
@@ -416,7 +413,7 @@ pub(crate) fn trait_datum_query(
416 trait_id: TraitId, 413 trait_id: TraitId,
417) -> Arc<TraitDatum> { 414) -> Arc<TraitDatum> {
418 debug!("trait_datum {:?}", trait_id); 415 debug!("trait_datum {:?}", trait_id);
419 let trait_: hir_def::TraitId = from_chalk(db, trait_id); 416 let trait_ = from_chalk_trait_id(trait_id);
420 let trait_data = db.trait_data(trait_); 417 let trait_data = db.trait_data(trait_);
421 debug!("trait {:?} = {:?}", trait_id, trait_data.name); 418 debug!("trait {:?} = {:?}", trait_id, trait_data.name);
422 let generic_params = generics(db.upcast(), trait_.into()); 419 let generic_params = generics(db.upcast(), trait_.into());
@@ -679,38 +676,65 @@ pub(crate) fn adt_variance_query(
679 ) 676 )
680} 677}
681 678
682impl From<FnDefId> for crate::db::InternedCallableDefId { 679pub(super) fn convert_where_clauses(
683 fn from(fn_def_id: FnDefId) -> Self { 680 db: &dyn HirDatabase,
684 InternKey::from_intern_id(fn_def_id.0) 681 def: GenericDefId,
685 } 682 substs: &Substitution,
686} 683) -> Vec<chalk_ir::QuantifiedWhereClause<Interner>> {
687 684 let generic_predicates = db.generic_predicates(def);
688impl From<crate::db::InternedCallableDefId> for FnDefId { 685 let mut result = Vec::with_capacity(generic_predicates.len());
689 fn from(callable_def_id: crate::db::InternedCallableDefId) -> Self { 686 for pred in generic_predicates.iter() {
690 chalk_ir::FnDefId(callable_def_id.as_intern_id()) 687 result.push(pred.clone().substitute(&Interner, substs));
691 } 688 }
692} 689 result
693
694impl From<OpaqueTyId> for crate::db::InternedOpaqueTyId {
695 fn from(id: OpaqueTyId) -> Self {
696 InternKey::from_intern_id(id.0)
697 }
698}
699
700impl From<crate::db::InternedOpaqueTyId> for OpaqueTyId {
701 fn from(id: crate::db::InternedOpaqueTyId) -> Self {
702 chalk_ir::OpaqueTyId(id.as_intern_id())
703 }
704}
705
706impl From<chalk_ir::ClosureId<Interner>> for crate::db::InternedClosureId {
707 fn from(id: chalk_ir::ClosureId<Interner>) -> Self {
708 Self::from_intern_id(id.0)
709 }
710} 690}
711 691
712impl From<crate::db::InternedClosureId> for chalk_ir::ClosureId<Interner> { 692pub(super) fn generic_predicate_to_inline_bound(
713 fn from(id: crate::db::InternedClosureId) -> Self { 693 db: &dyn HirDatabase,
714 chalk_ir::ClosureId(id.as_intern_id()) 694 pred: &QuantifiedWhereClause,
695 self_ty: &Ty,
696) -> Option<chalk_ir::Binders<rust_ir::InlineBound<Interner>>> {
697 // An InlineBound is like a GenericPredicate, except the self type is left out.
698 // We don't have a special type for this, but Chalk does.
699 let self_ty_shifted_in = self_ty.clone().shifted_in_from(&Interner, DebruijnIndex::ONE);
700 let (pred, binders) = pred.as_ref().into_value_and_skipped_binders();
701 match pred {
702 WhereClause::Implemented(trait_ref) => {
703 if trait_ref.self_type_parameter(&Interner) != self_ty_shifted_in {
704 // we can only convert predicates back to type bounds if they
705 // have the expected self type
706 return None;
707 }
708 let args_no_self = trait_ref.substitution.as_slice(&Interner)[1..]
709 .iter()
710 .map(|ty| ty.clone().cast(&Interner))
711 .collect();
712 let trait_bound = rust_ir::TraitBound { trait_id: trait_ref.trait_id, args_no_self };
713 Some(chalk_ir::Binders::new(binders, rust_ir::InlineBound::TraitBound(trait_bound)))
714 }
715 WhereClause::AliasEq(AliasEq { alias: AliasTy::Projection(projection_ty), ty }) => {
716 if projection_ty.self_type_parameter(&Interner) != self_ty_shifted_in {
717 return None;
718 }
719 let trait_ = projection_ty.trait_(db);
720 let args_no_self = projection_ty.substitution.as_slice(&Interner)[1..]
721 .iter()
722 .map(|ty| ty.clone().cast(&Interner))
723 .collect();
724 let alias_eq_bound = rust_ir::AliasEqBound {
725 value: ty.clone(),
726 trait_bound: rust_ir::TraitBound {
727 trait_id: to_chalk_trait_id(trait_),
728 args_no_self,
729 },
730 associated_ty_id: projection_ty.associated_ty_id,
731 parameters: Vec::new(), // FIXME we don't support generic associated types yet
732 };
733 Some(chalk_ir::Binders::new(
734 binders,
735 rust_ir::InlineBound::AliasEqBound(alias_eq_bound),
736 ))
737 }
738 _ => None,
715 } 739 }
716} 740}
diff --git a/crates/hir_ty/src/db.rs b/crates/hir_ty/src/db.rs
index 326c20240..1690926ad 100644
--- a/crates/hir_ty/src/db.rs
+++ b/crates/hir_ty/src/db.rs
@@ -1,4 +1,5 @@
1//! FIXME: write short doc here 1//! The home of `HirDatabase`, which is the Salsa database containing all the
2//! type inference-related queries.
2 3
3use std::sync::Arc; 4use std::sync::Arc;
4 5
@@ -10,9 +11,9 @@ use hir_def::{
10use la_arena::ArenaMap; 11use la_arena::ArenaMap;
11 12
12use crate::{ 13use crate::{
14 chalk_db,
13 method_resolution::{InherentImpls, TraitImpls}, 15 method_resolution::{InherentImpls, TraitImpls},
14 traits::chalk, 16 Binders, CallableDefId, FnDefId, ImplTraitId, InferenceResult, Interner, PolyFnSig,
15 Binders, CallableDefId, FnDefId, ImplTraitId, InferenceResult, PolyFnSig,
16 QuantifiedWhereClause, ReturnTypeImplTraits, TraitRef, Ty, TyDefId, ValueTyDefId, 17 QuantifiedWhereClause, ReturnTypeImplTraits, TraitRef, Ty, TyDefId, ValueTyDefId,
17}; 18};
18use hir_expand::name::Name; 19use hir_expand::name::Name;
@@ -94,33 +95,38 @@ pub trait HirDatabase: DefDatabase + Upcast<dyn DefDatabase> {
94 #[salsa::interned] 95 #[salsa::interned]
95 fn intern_closure(&self, id: (DefWithBodyId, ExprId)) -> InternedClosureId; 96 fn intern_closure(&self, id: (DefWithBodyId, ExprId)) -> InternedClosureId;
96 97
97 #[salsa::invoke(chalk::associated_ty_data_query)] 98 #[salsa::invoke(chalk_db::associated_ty_data_query)]
98 fn associated_ty_data(&self, id: chalk::AssocTypeId) -> Arc<chalk::AssociatedTyDatum>; 99 fn associated_ty_data(&self, id: chalk_db::AssocTypeId) -> Arc<chalk_db::AssociatedTyDatum>;
99 100
100 #[salsa::invoke(chalk::trait_datum_query)] 101 #[salsa::invoke(chalk_db::trait_datum_query)]
101 fn trait_datum(&self, krate: CrateId, trait_id: chalk::TraitId) -> Arc<chalk::TraitDatum>; 102 fn trait_datum(&self, krate: CrateId, trait_id: chalk_db::TraitId)
103 -> Arc<chalk_db::TraitDatum>;
102 104
103 #[salsa::invoke(chalk::struct_datum_query)] 105 #[salsa::invoke(chalk_db::struct_datum_query)]
104 fn struct_datum(&self, krate: CrateId, struct_id: chalk::AdtId) -> Arc<chalk::StructDatum>; 106 fn struct_datum(
107 &self,
108 krate: CrateId,
109 struct_id: chalk_db::AdtId,
110 ) -> Arc<chalk_db::StructDatum>;
105 111
106 #[salsa::invoke(crate::traits::chalk::impl_datum_query)] 112 #[salsa::invoke(chalk_db::impl_datum_query)]
107 fn impl_datum(&self, krate: CrateId, impl_id: chalk::ImplId) -> Arc<chalk::ImplDatum>; 113 fn impl_datum(&self, krate: CrateId, impl_id: chalk_db::ImplId) -> Arc<chalk_db::ImplDatum>;
108 114
109 #[salsa::invoke(crate::traits::chalk::fn_def_datum_query)] 115 #[salsa::invoke(chalk_db::fn_def_datum_query)]
110 fn fn_def_datum(&self, krate: CrateId, fn_def_id: FnDefId) -> Arc<chalk::FnDefDatum>; 116 fn fn_def_datum(&self, krate: CrateId, fn_def_id: FnDefId) -> Arc<chalk_db::FnDefDatum>;
111 117
112 #[salsa::invoke(crate::traits::chalk::fn_def_variance_query)] 118 #[salsa::invoke(chalk_db::fn_def_variance_query)]
113 fn fn_def_variance(&self, krate: CrateId, fn_def_id: FnDefId) -> chalk::Variances; 119 fn fn_def_variance(&self, krate: CrateId, fn_def_id: FnDefId) -> chalk_db::Variances;
114 120
115 #[salsa::invoke(crate::traits::chalk::adt_variance_query)] 121 #[salsa::invoke(chalk_db::adt_variance_query)]
116 fn adt_variance(&self, krate: CrateId, adt_id: chalk::AdtId) -> chalk::Variances; 122 fn adt_variance(&self, krate: CrateId, adt_id: chalk_db::AdtId) -> chalk_db::Variances;
117 123
118 #[salsa::invoke(crate::traits::chalk::associated_ty_value_query)] 124 #[salsa::invoke(chalk_db::associated_ty_value_query)]
119 fn associated_ty_value( 125 fn associated_ty_value(
120 &self, 126 &self,
121 krate: CrateId, 127 krate: CrateId,
122 id: chalk::AssociatedTyValueId, 128 id: chalk_db::AssociatedTyValueId,
123 ) -> Arc<chalk::AssociatedTyValue>; 129 ) -> Arc<chalk_db::AssociatedTyValue>;
124 130
125 #[salsa::invoke(crate::traits::trait_solve_query)] 131 #[salsa::invoke(crate::traits::trait_solve_query)]
126 fn trait_solve( 132 fn trait_solve(
@@ -129,12 +135,12 @@ pub trait HirDatabase: DefDatabase + Upcast<dyn DefDatabase> {
129 goal: crate::Canonical<crate::InEnvironment<crate::DomainGoal>>, 135 goal: crate::Canonical<crate::InEnvironment<crate::DomainGoal>>,
130 ) -> Option<crate::Solution>; 136 ) -> Option<crate::Solution>;
131 137
132 #[salsa::invoke(crate::traits::chalk::program_clauses_for_chalk_env_query)] 138 #[salsa::invoke(chalk_db::program_clauses_for_chalk_env_query)]
133 fn program_clauses_for_chalk_env( 139 fn program_clauses_for_chalk_env(
134 &self, 140 &self,
135 krate: CrateId, 141 krate: CrateId,
136 env: chalk_ir::Environment<chalk::Interner>, 142 env: chalk_ir::Environment<Interner>,
137 ) -> chalk_ir::ProgramClauses<chalk::Interner>; 143 ) -> chalk_ir::ProgramClauses<Interner>;
138} 144}
139 145
140fn infer_wait(db: &dyn HirDatabase, def: DefWithBodyId) -> Arc<InferenceResult> { 146fn infer_wait(db: &dyn HirDatabase, def: DefWithBodyId) -> Arc<InferenceResult> {
diff --git a/crates/hir_ty/src/diagnostics.rs b/crates/hir_ty/src/diagnostics.rs
index 86f937e1d..84fc8ce14 100644
--- a/crates/hir_ty/src/diagnostics.rs
+++ b/crates/hir_ty/src/diagnostics.rs
@@ -1,4 +1,4 @@
1//! FIXME: write short doc here 1//! Type inference-based diagnostics.
2mod expr; 2mod expr;
3mod match_check; 3mod match_check;
4mod unsafe_check; 4mod unsafe_check;
diff --git a/crates/hir_ty/src/display.rs b/crates/hir_ty/src/display.rs
index 92224b46b..e7c9dabc2 100644
--- a/crates/hir_ty/src/display.rs
+++ b/crates/hir_ty/src/display.rs
@@ -1,4 +1,6 @@
1//! FIXME: write short doc here 1//! The `HirDisplay` trait, which serves two purposes: Turning various bits from
2//! HIR back into source code, and just displaying them for debugging/testing
3//! purposes.
2 4
3use std::{ 5use std::{
4 array, 6 array,
@@ -20,11 +22,11 @@ use hir_expand::name::Name;
20 22
21use crate::{ 23use crate::{
22 const_from_placeholder_idx, db::HirDatabase, from_assoc_type_id, from_foreign_def_id, 24 const_from_placeholder_idx, db::HirDatabase, from_assoc_type_id, from_foreign_def_id,
23 from_placeholder_idx, lt_from_placeholder_idx, primitive, subst_prefix, to_assoc_type_id, 25 from_placeholder_idx, lt_from_placeholder_idx, mapping::from_chalk, primitive, subst_prefix,
24 traits::chalk::from_chalk, utils::generics, AdtId, AliasEq, AliasTy, CallableDefId, 26 to_assoc_type_id, utils::generics, AdtId, AliasEq, AliasTy, CallableDefId, CallableSig, Const,
25 CallableSig, Const, ConstValue, DomainGoal, GenericArg, ImplTraitId, Interner, Lifetime, 27 ConstValue, DomainGoal, GenericArg, ImplTraitId, Interner, Lifetime, LifetimeData,
26 LifetimeData, LifetimeOutlives, Mutability, OpaqueTy, ProjectionTy, ProjectionTyExt, 28 LifetimeOutlives, Mutability, OpaqueTy, ProjectionTy, ProjectionTyExt, QuantifiedWhereClause,
27 QuantifiedWhereClause, Scalar, TraitRef, TraitRefExt, Ty, TyExt, TyKind, WhereClause, 29 Scalar, TraitRef, TraitRefExt, Ty, TyExt, TyKind, WhereClause,
28}; 30};
29 31
30pub struct HirFormatter<'a> { 32pub struct HirFormatter<'a> {
diff --git a/crates/hir_ty/src/infer/expr.rs b/crates/hir_ty/src/infer/expr.rs
index 7961f4a52..50497eecb 100644
--- a/crates/hir_ty/src/infer/expr.rs
+++ b/crates/hir_ty/src/infer/expr.rs
@@ -17,10 +17,11 @@ use syntax::ast::RangeOp;
17use crate::{ 17use crate::{
18 autoderef, dummy_usize_const, 18 autoderef, dummy_usize_const,
19 lower::lower_to_chalk_mutability, 19 lower::lower_to_chalk_mutability,
20 mapping::from_chalk,
20 method_resolution, op, 21 method_resolution, op,
21 primitive::{self, UintTy}, 22 primitive::{self, UintTy},
22 static_lifetime, to_chalk_trait_id, 23 static_lifetime, to_chalk_trait_id,
23 traits::{chalk::from_chalk, FnTrait}, 24 traits::FnTrait,
24 utils::{generics, Generics}, 25 utils::{generics, Generics},
25 AdtId, Binders, CallableDefId, FnPointer, FnSig, FnSubst, InEnvironment, Interner, 26 AdtId, Binders, CallableDefId, FnPointer, FnSig, FnSubst, InEnvironment, Interner,
26 ProjectionTyExt, Rawness, Scalar, Substitution, TraitRef, Ty, TyBuilder, TyExt, TyKind, 27 ProjectionTyExt, Rawness, Scalar, Substitution, TraitRef, Ty, TyBuilder, TyExt, TyKind,
diff --git a/crates/hir_ty/src/traits/chalk/interner.rs b/crates/hir_ty/src/interner.rs
index b6a3cec6d..a1656115d 100644
--- a/crates/hir_ty/src/traits/chalk/interner.rs
+++ b/crates/hir_ty/src/interner.rs
@@ -1,8 +1,7 @@
1//! Implementation of the Chalk `Interner` trait, which allows customizing the 1//! Implementation of the Chalk `Interner` trait, which allows customizing the
2//! representation of the various objects Chalk deals with (types, goals etc.). 2//! representation of the various objects Chalk deals with (types, goals etc.).
3 3
4use super::tls; 4use crate::{chalk_db, tls, GenericArg};
5use crate::GenericArg;
6use base_db::salsa::InternId; 5use base_db::salsa::InternId;
7use chalk_ir::{Goal, GoalData}; 6use chalk_ir::{Goal, GoalData};
8use hir_def::{ 7use hir_def::{
@@ -15,21 +14,6 @@ use std::{fmt, sync::Arc};
15#[derive(Debug, Copy, Clone, Hash, PartialOrd, Ord, PartialEq, Eq)] 14#[derive(Debug, Copy, Clone, Hash, PartialOrd, Ord, PartialEq, Eq)]
16pub struct Interner; 15pub struct Interner;
17 16
18pub(crate) type AssocTypeId = chalk_ir::AssocTypeId<Interner>;
19pub(crate) type AssociatedTyDatum = chalk_solve::rust_ir::AssociatedTyDatum<Interner>;
20pub(crate) type TraitId = chalk_ir::TraitId<Interner>;
21pub(crate) type TraitDatum = chalk_solve::rust_ir::TraitDatum<Interner>;
22pub(crate) type AdtId = chalk_ir::AdtId<Interner>;
23pub(crate) type StructDatum = chalk_solve::rust_ir::AdtDatum<Interner>;
24pub(crate) type ImplId = chalk_ir::ImplId<Interner>;
25pub(crate) type ImplDatum = chalk_solve::rust_ir::ImplDatum<Interner>;
26pub(crate) type AssociatedTyValueId = chalk_solve::rust_ir::AssociatedTyValueId<Interner>;
27pub(crate) type AssociatedTyValue = chalk_solve::rust_ir::AssociatedTyValue<Interner>;
28pub(crate) type FnDefDatum = chalk_solve::rust_ir::FnDefDatum<Interner>;
29pub(crate) type OpaqueTyId = chalk_ir::OpaqueTyId<Interner>;
30pub(crate) type OpaqueTyDatum = chalk_solve::rust_ir::OpaqueTyDatum<Interner>;
31pub(crate) type Variances = chalk_ir::Variances<Interner>;
32
33#[derive(PartialEq, Eq, Hash, Debug)] 17#[derive(PartialEq, Eq, Hash, Debug)]
34pub struct InternedWrapper<T>(T); 18pub struct InternedWrapper<T>(T);
35 19
@@ -76,15 +60,24 @@ impl chalk_ir::interner::Interner for Interner {
76 type Identifier = TypeAliasId; 60 type Identifier = TypeAliasId;
77 type FnAbi = (); 61 type FnAbi = ();
78 62
79 fn debug_adt_id(type_kind_id: AdtId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> { 63 fn debug_adt_id(
64 type_kind_id: chalk_db::AdtId,
65 fmt: &mut fmt::Formatter<'_>,
66 ) -> Option<fmt::Result> {
80 tls::with_current_program(|prog| Some(prog?.debug_struct_id(type_kind_id, fmt))) 67 tls::with_current_program(|prog| Some(prog?.debug_struct_id(type_kind_id, fmt)))
81 } 68 }
82 69
83 fn debug_trait_id(type_kind_id: TraitId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> { 70 fn debug_trait_id(
71 type_kind_id: chalk_db::TraitId,
72 fmt: &mut fmt::Formatter<'_>,
73 ) -> Option<fmt::Result> {
84 tls::with_current_program(|prog| Some(prog?.debug_trait_id(type_kind_id, fmt))) 74 tls::with_current_program(|prog| Some(prog?.debug_trait_id(type_kind_id, fmt)))
85 } 75 }
86 76
87 fn debug_assoc_type_id(id: AssocTypeId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> { 77 fn debug_assoc_type_id(
78 id: chalk_db::AssocTypeId,
79 fmt: &mut fmt::Formatter<'_>,
80 ) -> Option<fmt::Result> {
88 tls::with_current_program(|prog| Some(prog?.debug_assoc_type_id(id, fmt))) 81 tls::with_current_program(|prog| Some(prog?.debug_assoc_type_id(id, fmt)))
89 } 82 }
90 83
@@ -419,3 +412,12 @@ impl chalk_ir::interner::Interner for Interner {
419impl chalk_ir::interner::HasInterner for Interner { 412impl chalk_ir::interner::HasInterner for Interner {
420 type Interner = Self; 413 type Interner = Self;
421} 414}
415
416#[macro_export]
417macro_rules! has_interner {
418 ($t:ty) => {
419 impl HasInterner for $t {
420 type Interner = crate::Interner;
421 }
422 };
423}
diff --git a/crates/hir_ty/src/lib.rs b/crates/hir_ty/src/lib.rs
index beb58d711..113234fa4 100644
--- a/crates/hir_ty/src/lib.rs
+++ b/crates/hir_ty/src/lib.rs
@@ -7,21 +7,23 @@ macro_rules! eprintln {
7} 7}
8 8
9mod autoderef; 9mod autoderef;
10pub mod primitive;
11pub mod traits;
12pub mod method_resolution;
13mod op;
14mod lower;
15pub(crate) mod infer;
16pub(crate) mod utils;
17mod chalk_cast;
18mod chalk_ext;
19mod builder; 10mod builder;
11mod chalk_db;
12mod chalk_ext;
13mod infer;
14mod interner;
15mod lower;
16mod mapping;
17mod op;
18mod tls;
19mod utils;
20mod walk; 20mod walk;
21
22pub mod display;
23pub mod db; 21pub mod db;
24pub mod diagnostics; 22pub mod diagnostics;
23pub mod display;
24pub mod method_resolution;
25pub mod primitive;
26pub mod traits;
25 27
26#[cfg(test)] 28#[cfg(test)]
27mod tests; 29mod tests;
@@ -30,16 +32,12 @@ mod test_db;
30 32
31use std::sync::Arc; 33use std::sync::Arc;
32 34
33use base_db::salsa;
34use chalk_ir::{ 35use chalk_ir::{
35 fold::{Fold, Shift}, 36 fold::{Fold, Shift},
36 interner::HasInterner, 37 interner::HasInterner,
37 UintTy, 38 UintTy,
38}; 39};
39use hir_def::{ 40use hir_def::{expr::ExprId, type_ref::Rawness, TypeParamId};
40 expr::ExprId, type_ref::Rawness, ConstParamId, LifetimeParamId, TraitId, TypeAliasId,
41 TypeParamId,
42};
43 41
44use crate::{db::HirDatabase, display::HirDisplay, utils::generics}; 42use crate::{db::HirDatabase, display::HirDisplay, utils::generics};
45 43
@@ -47,11 +45,17 @@ pub use autoderef::autoderef;
47pub use builder::TyBuilder; 45pub use builder::TyBuilder;
48pub use chalk_ext::*; 46pub use chalk_ext::*;
49pub use infer::{could_unify, InferenceResult}; 47pub use infer::{could_unify, InferenceResult};
48pub use interner::Interner;
50pub use lower::{ 49pub use lower::{
51 associated_type_shorthand_candidates, callable_item_sig, CallableDefId, ImplTraitLoweringMode, 50 associated_type_shorthand_candidates, callable_item_sig, CallableDefId, ImplTraitLoweringMode,
52 TyDefId, TyLoweringContext, ValueTyDefId, 51 TyDefId, TyLoweringContext, ValueTyDefId,
53}; 52};
54pub use traits::{chalk::Interner, TraitEnvironment}; 53pub use mapping::{
54 const_from_placeholder_idx, from_assoc_type_id, from_chalk_trait_id, from_foreign_def_id,
55 from_placeholder_idx, lt_from_placeholder_idx, to_assoc_type_id, to_chalk_trait_id,
56 to_foreign_def_id, to_placeholder_idx,
57};
58pub use traits::TraitEnvironment;
55pub use walk::TypeWalk; 59pub use walk::TypeWalk;
56 60
57pub use chalk_ir::{ 61pub use chalk_ir::{
@@ -94,6 +98,10 @@ pub type ConstValue = chalk_ir::ConstValue<Interner>;
94pub type ConcreteConst = chalk_ir::ConcreteConst<Interner>; 98pub type ConcreteConst = chalk_ir::ConcreteConst<Interner>;
95 99
96pub type ChalkTraitId = chalk_ir::TraitId<Interner>; 100pub type ChalkTraitId = chalk_ir::TraitId<Interner>;
101pub type TraitRef = chalk_ir::TraitRef<Interner>;
102pub type QuantifiedWhereClause = Binders<WhereClause>;
103pub type QuantifiedWhereClauses = chalk_ir::QuantifiedWhereClauses<Interner>;
104pub type Canonical<T> = chalk_ir::Canonical<T>;
97 105
98pub type FnSig = chalk_ir::FnSig<Interner>; 106pub type FnSig = chalk_ir::FnSig<Interner>;
99 107
@@ -118,14 +126,14 @@ pub fn param_idx(db: &dyn HirDatabase, id: TypeParamId) -> Option<usize> {
118 generics(db.upcast(), id.parent).param_idx(id) 126 generics(db.upcast(), id.parent).param_idx(id)
119} 127}
120 128
121pub fn wrap_empty_binders<T>(value: T) -> Binders<T> 129pub(crate) fn wrap_empty_binders<T>(value: T) -> Binders<T>
122where 130where
123 T: Fold<Interner, Result = T> + HasInterner<Interner = Interner>, 131 T: Fold<Interner, Result = T> + HasInterner<Interner = Interner>,
124{ 132{
125 Binders::empty(&Interner, value.shifted_in_from(&Interner, DebruijnIndex::ONE)) 133 Binders::empty(&Interner, value.shifted_in_from(&Interner, DebruijnIndex::ONE))
126} 134}
127 135
128pub fn make_only_type_binders<T: HasInterner<Interner = Interner>>( 136pub(crate) fn make_only_type_binders<T: HasInterner<Interner = Interner>>(
129 num_vars: usize, 137 num_vars: usize,
130 value: T, 138 value: T,
131) -> Binders<T> { 139) -> Binders<T> {
@@ -153,14 +161,6 @@ pub fn make_canonical<T: HasInterner<Interner = Interner>>(
153 Canonical { value, binders: chalk_ir::CanonicalVarKinds::from_iter(&Interner, kinds) } 161 Canonical { value, binders: chalk_ir::CanonicalVarKinds::from_iter(&Interner, kinds) }
154} 162}
155 163
156pub type TraitRef = chalk_ir::TraitRef<Interner>;
157
158pub type QuantifiedWhereClause = Binders<WhereClause>;
159
160pub type QuantifiedWhereClauses = chalk_ir::QuantifiedWhereClauses<Interner>;
161
162pub type Canonical<T> = chalk_ir::Canonical<T>;
163
164/// A function signature as seen by type inference: Several parameter types and 164/// A function signature as seen by type inference: Several parameter types and
165/// one return type. 165/// one return type.
166#[derive(Clone, PartialEq, Eq, Debug)] 166#[derive(Clone, PartialEq, Eq, Debug)]
@@ -169,6 +169,8 @@ pub struct CallableSig {
169 is_varargs: bool, 169 is_varargs: bool,
170} 170}
171 171
172has_interner!(CallableSig);
173
172/// A polymorphic function signature. 174/// A polymorphic function signature.
173pub type PolyFnSig = Binders<CallableSig>; 175pub type PolyFnSig = Binders<CallableSig>;
174 176
@@ -232,61 +234,13 @@ pub struct ReturnTypeImplTraits {
232 pub(crate) impl_traits: Vec<ReturnTypeImplTrait>, 234 pub(crate) impl_traits: Vec<ReturnTypeImplTrait>,
233} 235}
234 236
237has_interner!(ReturnTypeImplTraits);
238
235#[derive(Clone, PartialEq, Eq, Debug, Hash)] 239#[derive(Clone, PartialEq, Eq, Debug, Hash)]
236pub(crate) struct ReturnTypeImplTrait { 240pub(crate) struct ReturnTypeImplTrait {
237 pub(crate) bounds: Binders<Vec<QuantifiedWhereClause>>, 241 pub(crate) bounds: Binders<Vec<QuantifiedWhereClause>>,
238} 242}
239 243
240pub fn to_foreign_def_id(id: TypeAliasId) -> ForeignDefId {
241 chalk_ir::ForeignDefId(salsa::InternKey::as_intern_id(&id))
242}
243
244pub fn from_foreign_def_id(id: ForeignDefId) -> TypeAliasId {
245 salsa::InternKey::from_intern_id(id.0)
246}
247
248pub fn to_assoc_type_id(id: TypeAliasId) -> AssocTypeId {
249 chalk_ir::AssocTypeId(salsa::InternKey::as_intern_id(&id))
250}
251
252pub fn from_assoc_type_id(id: AssocTypeId) -> TypeAliasId {
253 salsa::InternKey::from_intern_id(id.0)
254}
255
256pub fn from_placeholder_idx(db: &dyn HirDatabase, idx: PlaceholderIndex) -> TypeParamId {
257 assert_eq!(idx.ui, chalk_ir::UniverseIndex::ROOT);
258 let interned_id = salsa::InternKey::from_intern_id(salsa::InternId::from(idx.idx));
259 db.lookup_intern_type_param_id(interned_id)
260}
261
262pub fn to_placeholder_idx(db: &dyn HirDatabase, id: TypeParamId) -> PlaceholderIndex {
263 let interned_id = db.intern_type_param_id(id);
264 PlaceholderIndex {
265 ui: chalk_ir::UniverseIndex::ROOT,
266 idx: salsa::InternKey::as_intern_id(&interned_id).as_usize(),
267 }
268}
269
270pub fn lt_from_placeholder_idx(db: &dyn HirDatabase, idx: PlaceholderIndex) -> LifetimeParamId {
271 assert_eq!(idx.ui, chalk_ir::UniverseIndex::ROOT);
272 let interned_id = salsa::InternKey::from_intern_id(salsa::InternId::from(idx.idx));
273 db.lookup_intern_lifetime_param_id(interned_id)
274}
275
276pub fn const_from_placeholder_idx(db: &dyn HirDatabase, idx: PlaceholderIndex) -> ConstParamId {
277 assert_eq!(idx.ui, chalk_ir::UniverseIndex::ROOT);
278 let interned_id = salsa::InternKey::from_intern_id(salsa::InternId::from(idx.idx));
279 db.lookup_intern_const_param_id(interned_id)
280}
281
282pub fn to_chalk_trait_id(id: TraitId) -> ChalkTraitId {
283 chalk_ir::TraitId(salsa::InternKey::as_intern_id(&id))
284}
285
286pub fn from_chalk_trait_id(id: ChalkTraitId) -> TraitId {
287 salsa::InternKey::from_intern_id(id.0)
288}
289
290pub fn static_lifetime() -> Lifetime { 244pub fn static_lifetime() -> Lifetime {
291 LifetimeData::Static.intern(&Interner) 245 LifetimeData::Static.intern(&Interner)
292} 246}
diff --git a/crates/hir_ty/src/lower.rs b/crates/hir_ty/src/lower.rs
index 8a22d9ea3..a035686bc 100644
--- a/crates/hir_ty/src/lower.rs
+++ b/crates/hir_ty/src/lower.rs
@@ -27,13 +27,14 @@ use stdx::impl_from;
27 27
28use crate::{ 28use crate::{
29 db::HirDatabase, 29 db::HirDatabase,
30 dummy_usize_const, static_lifetime, to_assoc_type_id, to_chalk_trait_id, to_placeholder_idx, 30 dummy_usize_const,
31 traits::chalk::{Interner, ToChalk}, 31 mapping::ToChalk,
32 static_lifetime, to_assoc_type_id, to_chalk_trait_id, to_placeholder_idx,
32 utils::{ 33 utils::{
33 all_super_trait_refs, associated_type_by_name_including_super_traits, generics, Generics, 34 all_super_trait_refs, associated_type_by_name_including_super_traits, generics, Generics,
34 }, 35 },
35 AliasEq, AliasTy, Binders, BoundVar, CallableSig, DebruijnIndex, DynTy, FnPointer, FnSig, 36 AliasEq, AliasTy, Binders, BoundVar, CallableSig, DebruijnIndex, DynTy, FnPointer, FnSig,
36 FnSubst, ImplTraitId, OpaqueTy, PolyFnSig, ProjectionTy, QuantifiedWhereClause, 37 FnSubst, ImplTraitId, Interner, OpaqueTy, PolyFnSig, ProjectionTy, QuantifiedWhereClause,
37 QuantifiedWhereClauses, ReturnTypeImplTrait, ReturnTypeImplTraits, Substitution, 38 QuantifiedWhereClauses, ReturnTypeImplTrait, ReturnTypeImplTraits, Substitution,
38 TraitEnvironment, TraitRef, TraitRefExt, Ty, TyBuilder, TyKind, WhereClause, 39 TraitEnvironment, TraitRef, TraitRefExt, Ty, TyBuilder, TyKind, WhereClause,
39}; 40};
diff --git a/crates/hir_ty/src/mapping.rs b/crates/hir_ty/src/mapping.rs
new file mode 100644
index 000000000..5e86fafe5
--- /dev/null
+++ b/crates/hir_ty/src/mapping.rs
@@ -0,0 +1,154 @@
1//! This module contains the implementations of the `ToChalk` trait, which
2//! handles conversion between our data types and their corresponding types in
3//! Chalk (in both directions); plus some helper functions for more specialized
4//! conversions.
5
6use chalk_solve::rust_ir;
7
8use base_db::salsa::{self, InternKey};
9use hir_def::{ConstParamId, LifetimeParamId, TraitId, TypeAliasId, TypeParamId};
10
11use crate::{
12 chalk_db, db::HirDatabase, AssocTypeId, CallableDefId, ChalkTraitId, FnDefId, ForeignDefId,
13 Interner, OpaqueTyId, PlaceholderIndex,
14};
15
16pub(crate) trait ToChalk {
17 type Chalk;
18 fn to_chalk(self, db: &dyn HirDatabase) -> Self::Chalk;
19 fn from_chalk(db: &dyn HirDatabase, chalk: Self::Chalk) -> Self;
20}
21
22pub(crate) fn from_chalk<T, ChalkT>(db: &dyn HirDatabase, chalk: ChalkT) -> T
23where
24 T: ToChalk<Chalk = ChalkT>,
25{
26 T::from_chalk(db, chalk)
27}
28
29impl ToChalk for hir_def::ImplId {
30 type Chalk = chalk_db::ImplId;
31
32 fn to_chalk(self, _db: &dyn HirDatabase) -> chalk_db::ImplId {
33 chalk_ir::ImplId(self.as_intern_id())
34 }
35
36 fn from_chalk(_db: &dyn HirDatabase, impl_id: chalk_db::ImplId) -> hir_def::ImplId {
37 InternKey::from_intern_id(impl_id.0)
38 }
39}
40
41impl ToChalk for CallableDefId {
42 type Chalk = FnDefId;
43
44 fn to_chalk(self, db: &dyn HirDatabase) -> FnDefId {
45 db.intern_callable_def(self).into()
46 }
47
48 fn from_chalk(db: &dyn HirDatabase, fn_def_id: FnDefId) -> CallableDefId {
49 db.lookup_intern_callable_def(fn_def_id.into())
50 }
51}
52
53pub(crate) struct TypeAliasAsValue(pub(crate) TypeAliasId);
54
55impl ToChalk for TypeAliasAsValue {
56 type Chalk = chalk_db::AssociatedTyValueId;
57
58 fn to_chalk(self, _db: &dyn HirDatabase) -> chalk_db::AssociatedTyValueId {
59 rust_ir::AssociatedTyValueId(self.0.as_intern_id())
60 }
61
62 fn from_chalk(
63 _db: &dyn HirDatabase,
64 assoc_ty_value_id: chalk_db::AssociatedTyValueId,
65 ) -> TypeAliasAsValue {
66 TypeAliasAsValue(TypeAliasId::from_intern_id(assoc_ty_value_id.0))
67 }
68}
69
70impl From<FnDefId> for crate::db::InternedCallableDefId {
71 fn from(fn_def_id: FnDefId) -> Self {
72 InternKey::from_intern_id(fn_def_id.0)
73 }
74}
75
76impl From<crate::db::InternedCallableDefId> for FnDefId {
77 fn from(callable_def_id: crate::db::InternedCallableDefId) -> Self {
78 chalk_ir::FnDefId(callable_def_id.as_intern_id())
79 }
80}
81
82impl From<OpaqueTyId> for crate::db::InternedOpaqueTyId {
83 fn from(id: OpaqueTyId) -> Self {
84 InternKey::from_intern_id(id.0)
85 }
86}
87
88impl From<crate::db::InternedOpaqueTyId> for OpaqueTyId {
89 fn from(id: crate::db::InternedOpaqueTyId) -> Self {
90 chalk_ir::OpaqueTyId(id.as_intern_id())
91 }
92}
93
94impl From<chalk_ir::ClosureId<Interner>> for crate::db::InternedClosureId {
95 fn from(id: chalk_ir::ClosureId<Interner>) -> Self {
96 Self::from_intern_id(id.0)
97 }
98}
99
100impl From<crate::db::InternedClosureId> for chalk_ir::ClosureId<Interner> {
101 fn from(id: crate::db::InternedClosureId) -> Self {
102 chalk_ir::ClosureId(id.as_intern_id())
103 }
104}
105
106pub fn to_foreign_def_id(id: TypeAliasId) -> ForeignDefId {
107 chalk_ir::ForeignDefId(salsa::InternKey::as_intern_id(&id))
108}
109
110pub fn from_foreign_def_id(id: ForeignDefId) -> TypeAliasId {
111 salsa::InternKey::from_intern_id(id.0)
112}
113
114pub fn to_assoc_type_id(id: TypeAliasId) -> AssocTypeId {
115 chalk_ir::AssocTypeId(salsa::InternKey::as_intern_id(&id))
116}
117
118pub fn from_assoc_type_id(id: AssocTypeId) -> TypeAliasId {
119 salsa::InternKey::from_intern_id(id.0)
120}
121
122pub fn from_placeholder_idx(db: &dyn HirDatabase, idx: PlaceholderIndex) -> TypeParamId {
123 assert_eq!(idx.ui, chalk_ir::UniverseIndex::ROOT);
124 let interned_id = salsa::InternKey::from_intern_id(salsa::InternId::from(idx.idx));
125 db.lookup_intern_type_param_id(interned_id)
126}
127
128pub fn to_placeholder_idx(db: &dyn HirDatabase, id: TypeParamId) -> PlaceholderIndex {
129 let interned_id = db.intern_type_param_id(id);
130 PlaceholderIndex {
131 ui: chalk_ir::UniverseIndex::ROOT,
132 idx: salsa::InternKey::as_intern_id(&interned_id).as_usize(),
133 }
134}
135
136pub fn lt_from_placeholder_idx(db: &dyn HirDatabase, idx: PlaceholderIndex) -> LifetimeParamId {
137 assert_eq!(idx.ui, chalk_ir::UniverseIndex::ROOT);
138 let interned_id = salsa::InternKey::from_intern_id(salsa::InternId::from(idx.idx));
139 db.lookup_intern_lifetime_param_id(interned_id)
140}
141
142pub fn const_from_placeholder_idx(db: &dyn HirDatabase, idx: PlaceholderIndex) -> ConstParamId {
143 assert_eq!(idx.ui, chalk_ir::UniverseIndex::ROOT);
144 let interned_id = salsa::InternKey::from_intern_id(salsa::InternId::from(idx.idx));
145 db.lookup_intern_const_param_id(interned_id)
146}
147
148pub fn to_chalk_trait_id(id: TraitId) -> ChalkTraitId {
149 chalk_ir::TraitId(salsa::InternKey::as_intern_id(&id))
150}
151
152pub fn from_chalk_trait_id(id: ChalkTraitId) -> TraitId {
153 salsa::InternKey::from_intern_id(id.0)
154}
diff --git a/crates/hir_ty/src/primitive.rs b/crates/hir_ty/src/primitive.rs
index 2449addfb..d7f48c69a 100644
--- a/crates/hir_ty/src/primitive.rs
+++ b/crates/hir_ty/src/primitive.rs
@@ -1,7 +1,4 @@
1//! Defines primitive types, which have a couple of peculiarities: 1//! A few helper functions for dealing with primitives.
2//!
3//! * during type inference, they can be uncertain (ie, `let x = 92;`)
4//! * they don't belong to any particular crate.
5 2
6pub use chalk_ir::{FloatTy, IntTy, UintTy}; 3pub use chalk_ir::{FloatTy, IntTy, UintTy};
7pub use hir_def::builtin_type::{BuiltinFloat, BuiltinInt, BuiltinUint}; 4pub use hir_def::builtin_type::{BuiltinFloat, BuiltinInt, BuiltinUint};
diff --git a/crates/hir_ty/src/traits/chalk/tls.rs b/crates/hir_ty/src/tls.rs
index 8892a63a9..87c671a42 100644
--- a/crates/hir_ty/src/traits/chalk/tls.rs
+++ b/crates/hir_ty/src/tls.rs
@@ -4,8 +4,10 @@ use std::fmt;
4use chalk_ir::{AliasTy, GenericArg, Goal, Goals, Lifetime, ProgramClauseImplication}; 4use chalk_ir::{AliasTy, GenericArg, Goal, Goals, Lifetime, ProgramClauseImplication};
5use itertools::Itertools; 5use itertools::Itertools;
6 6
7use super::{from_chalk, Interner}; 7use crate::{
8use crate::{db::HirDatabase, from_assoc_type_id, CallableDefId}; 8 chalk_db, db::HirDatabase, from_assoc_type_id, from_chalk_trait_id, mapping::from_chalk,
9 CallableDefId, Interner,
10};
9use hir_def::{AdtId, AssocContainerId, Lookup, TypeAliasId}; 11use hir_def::{AdtId, AssocContainerId, Lookup, TypeAliasId};
10 12
11pub(crate) use unsafe_tls::{set_current_program, with_current_program}; 13pub(crate) use unsafe_tls::{set_current_program, with_current_program};
@@ -15,7 +17,7 @@ pub(crate) struct DebugContext<'a>(&'a dyn HirDatabase);
15impl DebugContext<'_> { 17impl DebugContext<'_> {
16 pub(crate) fn debug_struct_id( 18 pub(crate) fn debug_struct_id(
17 &self, 19 &self,
18 id: super::AdtId, 20 id: chalk_db::AdtId,
19 f: &mut fmt::Formatter<'_>, 21 f: &mut fmt::Formatter<'_>,
20 ) -> Result<(), fmt::Error> { 22 ) -> Result<(), fmt::Error> {
21 let name = match id.0 { 23 let name = match id.0 {
@@ -28,17 +30,17 @@ impl DebugContext<'_> {
28 30
29 pub(crate) fn debug_trait_id( 31 pub(crate) fn debug_trait_id(
30 &self, 32 &self,
31 id: super::TraitId, 33 id: chalk_db::TraitId,
32 fmt: &mut fmt::Formatter<'_>, 34 fmt: &mut fmt::Formatter<'_>,
33 ) -> Result<(), fmt::Error> { 35 ) -> Result<(), fmt::Error> {
34 let trait_: hir_def::TraitId = from_chalk(self.0, id); 36 let trait_: hir_def::TraitId = from_chalk_trait_id(id);
35 let trait_data = self.0.trait_data(trait_); 37 let trait_data = self.0.trait_data(trait_);
36 write!(fmt, "{}", trait_data.name) 38 write!(fmt, "{}", trait_data.name)
37 } 39 }
38 40
39 pub(crate) fn debug_assoc_type_id( 41 pub(crate) fn debug_assoc_type_id(
40 &self, 42 &self,
41 id: super::AssocTypeId, 43 id: chalk_db::AssocTypeId,
42 fmt: &mut fmt::Formatter<'_>, 44 fmt: &mut fmt::Formatter<'_>,
43 ) -> Result<(), fmt::Error> { 45 ) -> Result<(), fmt::Error> {
44 let type_alias: TypeAliasId = from_assoc_type_id(id); 46 let type_alias: TypeAliasId = from_assoc_type_id(id);
diff --git a/crates/hir_ty/src/traits.rs b/crates/hir_ty/src/traits.rs
index 1cda72d22..9936d0803 100644
--- a/crates/hir_ty/src/traits.rs
+++ b/crates/hir_ty/src/traits.rs
@@ -1,28 +1,26 @@
1//! Trait solving using Chalk. 1//! Trait solving using Chalk.
2
2use std::env::var; 3use std::env::var;
3 4
4use base_db::CrateId;
5use chalk_ir::cast::Cast; 5use chalk_ir::cast::Cast;
6use chalk_solve::{logging_db::LoggingRustIrDatabase, Solver}; 6use chalk_solve::{logging_db::LoggingRustIrDatabase, Solver};
7
8use base_db::CrateId;
7use hir_def::{lang_item::LangItemTarget, TraitId}; 9use hir_def::{lang_item::LangItemTarget, TraitId};
8use stdx::panic_context; 10use stdx::panic_context;
9 11
10use crate::{ 12use crate::{
11 db::HirDatabase, AliasEq, AliasTy, Canonical, DomainGoal, Guidance, HirDisplay, InEnvironment, 13 db::HirDatabase, AliasEq, AliasTy, Canonical, DomainGoal, Guidance, HirDisplay, InEnvironment,
12 Solution, TraitRefExt, Ty, TyKind, WhereClause, 14 Interner, Solution, TraitRefExt, Ty, TyKind, WhereClause,
13}; 15};
14 16
15use self::chalk::Interner;
16
17pub(crate) mod chalk;
18
19/// This controls how much 'time' we give the Chalk solver before giving up. 17/// This controls how much 'time' we give the Chalk solver before giving up.
20const CHALK_SOLVER_FUEL: i32 = 100; 18const CHALK_SOLVER_FUEL: i32 = 100;
21 19
22#[derive(Debug, Copy, Clone)] 20#[derive(Debug, Copy, Clone)]
23struct ChalkContext<'a> { 21pub(crate) struct ChalkContext<'a> {
24 db: &'a dyn HirDatabase, 22 pub(crate) db: &'a dyn HirDatabase,
25 krate: CrateId, 23 pub(crate) krate: CrateId,
26} 24}
27 25
28fn create_chalk_solver() -> chalk_recursive::RecursiveSolver<Interner> { 26fn create_chalk_solver() -> chalk_recursive::RecursiveSolver<Interner> {
@@ -148,7 +146,7 @@ fn solve(
148 // don't set the TLS for Chalk unless Chalk debugging is active, to make 146 // don't set the TLS for Chalk unless Chalk debugging is active, to make
149 // extra sure we only use it for debugging 147 // extra sure we only use it for debugging
150 let solution = 148 let solution =
151 if is_chalk_debug() { chalk::tls::set_current_program(db, solve) } else { solve() }; 149 if is_chalk_debug() { crate::tls::set_current_program(db, solve) } else { solve() };
152 150
153 solution 151 solution
154} 152}
diff --git a/crates/hir_ty/src/traits/chalk/mapping.rs b/crates/hir_ty/src/traits/chalk/mapping.rs
deleted file mode 100644
index e78581ea5..000000000
--- a/crates/hir_ty/src/traits/chalk/mapping.rs
+++ /dev/null
@@ -1,131 +0,0 @@
1//! This module contains the implementations of the `ToChalk` trait, which
2//! handles conversion between our data types and their corresponding types in
3//! Chalk (in both directions); plus some helper functions for more specialized
4//! conversions.
5
6use chalk_ir::cast::Cast;
7use chalk_solve::rust_ir;
8
9use base_db::salsa::InternKey;
10use hir_def::{GenericDefId, TypeAliasId};
11
12use crate::{
13 db::HirDatabase, AliasTy, CallableDefId, ProjectionTyExt, QuantifiedWhereClause, Substitution,
14 Ty, WhereClause,
15};
16
17use super::interner::*;
18use super::*;
19
20impl ToChalk for hir_def::TraitId {
21 type Chalk = TraitId;
22
23 fn to_chalk(self, _db: &dyn HirDatabase) -> TraitId {
24 chalk_ir::TraitId(self.as_intern_id())
25 }
26
27 fn from_chalk(_db: &dyn HirDatabase, trait_id: TraitId) -> hir_def::TraitId {
28 InternKey::from_intern_id(trait_id.0)
29 }
30}
31
32impl ToChalk for hir_def::ImplId {
33 type Chalk = ImplId;
34
35 fn to_chalk(self, _db: &dyn HirDatabase) -> ImplId {
36 chalk_ir::ImplId(self.as_intern_id())
37 }
38
39 fn from_chalk(_db: &dyn HirDatabase, impl_id: ImplId) -> hir_def::ImplId {
40 InternKey::from_intern_id(impl_id.0)
41 }
42}
43
44impl ToChalk for CallableDefId {
45 type Chalk = FnDefId;
46
47 fn to_chalk(self, db: &dyn HirDatabase) -> FnDefId {
48 db.intern_callable_def(self).into()
49 }
50
51 fn from_chalk(db: &dyn HirDatabase, fn_def_id: FnDefId) -> CallableDefId {
52 db.lookup_intern_callable_def(fn_def_id.into())
53 }
54}
55
56pub(crate) struct TypeAliasAsValue(pub(crate) TypeAliasId);
57
58impl ToChalk for TypeAliasAsValue {
59 type Chalk = AssociatedTyValueId;
60
61 fn to_chalk(self, _db: &dyn HirDatabase) -> AssociatedTyValueId {
62 rust_ir::AssociatedTyValueId(self.0.as_intern_id())
63 }
64
65 fn from_chalk(
66 _db: &dyn HirDatabase,
67 assoc_ty_value_id: AssociatedTyValueId,
68 ) -> TypeAliasAsValue {
69 TypeAliasAsValue(TypeAliasId::from_intern_id(assoc_ty_value_id.0))
70 }
71}
72
73pub(super) fn convert_where_clauses(
74 db: &dyn HirDatabase,
75 def: GenericDefId,
76 substs: &Substitution,
77) -> Vec<chalk_ir::QuantifiedWhereClause<Interner>> {
78 let generic_predicates = db.generic_predicates(def);
79 let mut result = Vec::with_capacity(generic_predicates.len());
80 for pred in generic_predicates.iter() {
81 result.push(pred.clone().substitute(&Interner, substs));
82 }
83 result
84}
85
86pub(super) fn generic_predicate_to_inline_bound(
87 db: &dyn HirDatabase,
88 pred: &QuantifiedWhereClause,
89 self_ty: &Ty,
90) -> Option<chalk_ir::Binders<rust_ir::InlineBound<Interner>>> {
91 // An InlineBound is like a GenericPredicate, except the self type is left out.
92 // We don't have a special type for this, but Chalk does.
93 let self_ty_shifted_in = self_ty.clone().shifted_in_from(&Interner, DebruijnIndex::ONE);
94 let (pred, binders) = pred.as_ref().into_value_and_skipped_binders();
95 match pred {
96 WhereClause::Implemented(trait_ref) => {
97 if trait_ref.self_type_parameter(&Interner) != self_ty_shifted_in {
98 // we can only convert predicates back to type bounds if they
99 // have the expected self type
100 return None;
101 }
102 let args_no_self = trait_ref.substitution.as_slice(&Interner)[1..]
103 .iter()
104 .map(|ty| ty.clone().cast(&Interner))
105 .collect();
106 let trait_bound = rust_ir::TraitBound { trait_id: trait_ref.trait_id, args_no_self };
107 Some(chalk_ir::Binders::new(binders, rust_ir::InlineBound::TraitBound(trait_bound)))
108 }
109 WhereClause::AliasEq(AliasEq { alias: AliasTy::Projection(projection_ty), ty }) => {
110 if projection_ty.self_type_parameter(&Interner) != self_ty_shifted_in {
111 return None;
112 }
113 let trait_ = projection_ty.trait_(db);
114 let args_no_self = projection_ty.substitution.as_slice(&Interner)[1..]
115 .iter()
116 .map(|ty| ty.clone().cast(&Interner))
117 .collect();
118 let alias_eq_bound = rust_ir::AliasEqBound {
119 value: ty.clone(),
120 trait_bound: rust_ir::TraitBound { trait_id: trait_.to_chalk(db), args_no_self },
121 associated_ty_id: projection_ty.associated_ty_id,
122 parameters: Vec::new(), // FIXME we don't support generic associated types yet
123 };
124 Some(chalk_ir::Binders::new(
125 binders,
126 rust_ir::InlineBound::AliasEqBound(alias_eq_bound),
127 ))
128 }
129 _ => None,
130 }
131}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 13:04:27 +0000