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-rw-r--r--crates/hir_ty/src/traits/chalk/interner.rs421
-rw-r--r--crates/hir_ty/src/traits/chalk/mapping.rs131
-rw-r--r--crates/hir_ty/src/traits/chalk/tls.rs275
3 files changed, 0 insertions, 827 deletions
diff --git a/crates/hir_ty/src/traits/chalk/interner.rs b/crates/hir_ty/src/traits/chalk/interner.rs
deleted file mode 100644
index b6a3cec6d..000000000
--- a/crates/hir_ty/src/traits/chalk/interner.rs
+++ /dev/null
@@ -1,421 +0,0 @@
1//! Implementation of the Chalk `Interner` trait, which allows customizing the
2//! representation of the various objects Chalk deals with (types, goals etc.).
3
4use super::tls;
5use crate::GenericArg;
6use base_db::salsa::InternId;
7use chalk_ir::{Goal, GoalData};
8use hir_def::{
9 intern::{impl_internable, InternStorage, Internable, Interned},
10 TypeAliasId,
11};
12use smallvec::SmallVec;
13use std::{fmt, sync::Arc};
14
15#[derive(Debug, Copy, Clone, Hash, PartialOrd, Ord, PartialEq, Eq)]
16pub struct Interner;
17
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)]
34pub struct InternedWrapper<T>(T);
35
36impl<T> std::ops::Deref for InternedWrapper<T> {
37 type Target = T;
38
39 fn deref(&self) -> &Self::Target {
40 &self.0
41 }
42}
43
44impl_internable!(
45 InternedWrapper<Vec<chalk_ir::VariableKind<Interner>>>,
46 InternedWrapper<SmallVec<[GenericArg; 2]>>,
47 InternedWrapper<chalk_ir::TyData<Interner>>,
48 InternedWrapper<chalk_ir::LifetimeData<Interner>>,
49 InternedWrapper<chalk_ir::ConstData<Interner>>,
50 InternedWrapper<Vec<chalk_ir::CanonicalVarKind<Interner>>>,
51 InternedWrapper<Vec<chalk_ir::ProgramClause<Interner>>>,
52 InternedWrapper<Vec<chalk_ir::QuantifiedWhereClause<Interner>>>,
53 InternedWrapper<Vec<chalk_ir::Variance>>,
54);
55
56impl chalk_ir::interner::Interner for Interner {
57 type InternedType = Interned<InternedWrapper<chalk_ir::TyData<Interner>>>;
58 type InternedLifetime = Interned<InternedWrapper<chalk_ir::LifetimeData<Self>>>;
59 type InternedConst = Interned<InternedWrapper<chalk_ir::ConstData<Self>>>;
60 type InternedConcreteConst = ();
61 type InternedGenericArg = chalk_ir::GenericArgData<Self>;
62 type InternedGoal = Arc<GoalData<Self>>;
63 type InternedGoals = Vec<Goal<Self>>;
64 type InternedSubstitution = Interned<InternedWrapper<SmallVec<[GenericArg; 2]>>>;
65 type InternedProgramClause = chalk_ir::ProgramClauseData<Self>;
66 type InternedProgramClauses = Interned<InternedWrapper<Vec<chalk_ir::ProgramClause<Self>>>>;
67 type InternedQuantifiedWhereClauses =
68 Interned<InternedWrapper<Vec<chalk_ir::QuantifiedWhereClause<Self>>>>;
69 type InternedVariableKinds = Interned<InternedWrapper<Vec<chalk_ir::VariableKind<Interner>>>>;
70 type InternedCanonicalVarKinds =
71 Interned<InternedWrapper<Vec<chalk_ir::CanonicalVarKind<Self>>>>;
72 type InternedConstraints = Vec<chalk_ir::InEnvironment<chalk_ir::Constraint<Self>>>;
73 type InternedVariances = Interned<InternedWrapper<Vec<chalk_ir::Variance>>>;
74 type DefId = InternId;
75 type InternedAdtId = hir_def::AdtId;
76 type Identifier = TypeAliasId;
77 type FnAbi = ();
78
79 fn debug_adt_id(type_kind_id: AdtId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
80 tls::with_current_program(|prog| Some(prog?.debug_struct_id(type_kind_id, fmt)))
81 }
82
83 fn debug_trait_id(type_kind_id: TraitId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
84 tls::with_current_program(|prog| Some(prog?.debug_trait_id(type_kind_id, fmt)))
85 }
86
87 fn debug_assoc_type_id(id: AssocTypeId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
88 tls::with_current_program(|prog| Some(prog?.debug_assoc_type_id(id, fmt)))
89 }
90
91 fn debug_alias(
92 alias: &chalk_ir::AliasTy<Interner>,
93 fmt: &mut fmt::Formatter<'_>,
94 ) -> Option<fmt::Result> {
95 tls::with_current_program(|prog| Some(prog?.debug_alias(alias, fmt)))
96 }
97
98 fn debug_projection_ty(
99 proj: &chalk_ir::ProjectionTy<Interner>,
100 fmt: &mut fmt::Formatter<'_>,
101 ) -> Option<fmt::Result> {
102 tls::with_current_program(|prog| Some(prog?.debug_projection_ty(proj, fmt)))
103 }
104
105 fn debug_opaque_ty(
106 opaque_ty: &chalk_ir::OpaqueTy<Interner>,
107 fmt: &mut fmt::Formatter<'_>,
108 ) -> Option<fmt::Result> {
109 tls::with_current_program(|prog| Some(prog?.debug_opaque_ty(opaque_ty, fmt)))
110 }
111
112 fn debug_opaque_ty_id(
113 opaque_ty_id: chalk_ir::OpaqueTyId<Self>,
114 fmt: &mut fmt::Formatter<'_>,
115 ) -> Option<fmt::Result> {
116 tls::with_current_program(|prog| Some(prog?.debug_opaque_ty_id(opaque_ty_id, fmt)))
117 }
118
119 fn debug_ty(ty: &chalk_ir::Ty<Interner>, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
120 tls::with_current_program(|prog| Some(prog?.debug_ty(ty, fmt)))
121 }
122
123 fn debug_lifetime(
124 lifetime: &chalk_ir::Lifetime<Interner>,
125 fmt: &mut fmt::Formatter<'_>,
126 ) -> Option<fmt::Result> {
127 tls::with_current_program(|prog| Some(prog?.debug_lifetime(lifetime, fmt)))
128 }
129
130 fn debug_generic_arg(
131 parameter: &GenericArg,
132 fmt: &mut fmt::Formatter<'_>,
133 ) -> Option<fmt::Result> {
134 tls::with_current_program(|prog| Some(prog?.debug_generic_arg(parameter, fmt)))
135 }
136
137 fn debug_goal(goal: &Goal<Interner>, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
138 tls::with_current_program(|prog| Some(prog?.debug_goal(goal, fmt)))
139 }
140
141 fn debug_goals(
142 goals: &chalk_ir::Goals<Interner>,
143 fmt: &mut fmt::Formatter<'_>,
144 ) -> Option<fmt::Result> {
145 tls::with_current_program(|prog| Some(prog?.debug_goals(goals, fmt)))
146 }
147
148 fn debug_program_clause_implication(
149 pci: &chalk_ir::ProgramClauseImplication<Interner>,
150 fmt: &mut fmt::Formatter<'_>,
151 ) -> Option<fmt::Result> {
152 tls::with_current_program(|prog| Some(prog?.debug_program_clause_implication(pci, fmt)))
153 }
154
155 fn debug_substitution(
156 substitution: &chalk_ir::Substitution<Interner>,
157 fmt: &mut fmt::Formatter<'_>,
158 ) -> Option<fmt::Result> {
159 tls::with_current_program(|prog| Some(prog?.debug_substitution(substitution, fmt)))
160 }
161
162 fn debug_separator_trait_ref(
163 separator_trait_ref: &chalk_ir::SeparatorTraitRef<Interner>,
164 fmt: &mut fmt::Formatter<'_>,
165 ) -> Option<fmt::Result> {
166 tls::with_current_program(|prog| {
167 Some(prog?.debug_separator_trait_ref(separator_trait_ref, fmt))
168 })
169 }
170
171 fn debug_fn_def_id(
172 fn_def_id: chalk_ir::FnDefId<Self>,
173 fmt: &mut fmt::Formatter<'_>,
174 ) -> Option<fmt::Result> {
175 tls::with_current_program(|prog| Some(prog?.debug_fn_def_id(fn_def_id, fmt)))
176 }
177 fn debug_const(
178 constant: &chalk_ir::Const<Self>,
179 fmt: &mut fmt::Formatter<'_>,
180 ) -> Option<fmt::Result> {
181 tls::with_current_program(|prog| Some(prog?.debug_const(constant, fmt)))
182 }
183 fn debug_variable_kinds(
184 variable_kinds: &chalk_ir::VariableKinds<Self>,
185 fmt: &mut fmt::Formatter<'_>,
186 ) -> Option<fmt::Result> {
187 tls::with_current_program(|prog| Some(prog?.debug_variable_kinds(variable_kinds, fmt)))
188 }
189 fn debug_variable_kinds_with_angles(
190 variable_kinds: &chalk_ir::VariableKinds<Self>,
191 fmt: &mut fmt::Formatter<'_>,
192 ) -> Option<fmt::Result> {
193 tls::with_current_program(|prog| {
194 Some(prog?.debug_variable_kinds_with_angles(variable_kinds, fmt))
195 })
196 }
197 fn debug_canonical_var_kinds(
198 canonical_var_kinds: &chalk_ir::CanonicalVarKinds<Self>,
199 fmt: &mut fmt::Formatter<'_>,
200 ) -> Option<fmt::Result> {
201 tls::with_current_program(|prog| {
202 Some(prog?.debug_canonical_var_kinds(canonical_var_kinds, fmt))
203 })
204 }
205 fn debug_program_clause(
206 clause: &chalk_ir::ProgramClause<Self>,
207 fmt: &mut fmt::Formatter<'_>,
208 ) -> Option<fmt::Result> {
209 tls::with_current_program(|prog| Some(prog?.debug_program_clause(clause, fmt)))
210 }
211 fn debug_program_clauses(
212 clauses: &chalk_ir::ProgramClauses<Self>,
213 fmt: &mut fmt::Formatter<'_>,
214 ) -> Option<fmt::Result> {
215 tls::with_current_program(|prog| Some(prog?.debug_program_clauses(clauses, fmt)))
216 }
217 fn debug_quantified_where_clauses(
218 clauses: &chalk_ir::QuantifiedWhereClauses<Self>,
219 fmt: &mut fmt::Formatter<'_>,
220 ) -> Option<fmt::Result> {
221 tls::with_current_program(|prog| Some(prog?.debug_quantified_where_clauses(clauses, fmt)))
222 }
223
224 fn intern_ty(&self, kind: chalk_ir::TyKind<Self>) -> Self::InternedType {
225 let flags = kind.compute_flags(self);
226 Interned::new(InternedWrapper(chalk_ir::TyData { kind, flags }))
227 }
228
229 fn ty_data<'a>(&self, ty: &'a Self::InternedType) -> &'a chalk_ir::TyData<Self> {
230 &ty.0
231 }
232
233 fn intern_lifetime(&self, lifetime: chalk_ir::LifetimeData<Self>) -> Self::InternedLifetime {
234 Interned::new(InternedWrapper(lifetime))
235 }
236
237 fn lifetime_data<'a>(
238 &self,
239 lifetime: &'a Self::InternedLifetime,
240 ) -> &'a chalk_ir::LifetimeData<Self> {
241 &lifetime.0
242 }
243
244 fn intern_const(&self, constant: chalk_ir::ConstData<Self>) -> Self::InternedConst {
245 Interned::new(InternedWrapper(constant))
246 }
247
248 fn const_data<'a>(&self, constant: &'a Self::InternedConst) -> &'a chalk_ir::ConstData<Self> {
249 &constant.0
250 }
251
252 fn const_eq(
253 &self,
254 _ty: &Self::InternedType,
255 _c1: &Self::InternedConcreteConst,
256 _c2: &Self::InternedConcreteConst,
257 ) -> bool {
258 true
259 }
260
261 fn intern_generic_arg(
262 &self,
263 parameter: chalk_ir::GenericArgData<Self>,
264 ) -> Self::InternedGenericArg {
265 parameter
266 }
267
268 fn generic_arg_data<'a>(
269 &self,
270 parameter: &'a Self::InternedGenericArg,
271 ) -> &'a chalk_ir::GenericArgData<Self> {
272 parameter
273 }
274
275 fn intern_goal(&self, goal: GoalData<Self>) -> Self::InternedGoal {
276 Arc::new(goal)
277 }
278
279 fn intern_goals<E>(
280 &self,
281 data: impl IntoIterator<Item = Result<Goal<Self>, E>>,
282 ) -> Result<Self::InternedGoals, E> {
283 data.into_iter().collect()
284 }
285
286 fn goal_data<'a>(&self, goal: &'a Self::InternedGoal) -> &'a GoalData<Self> {
287 goal
288 }
289
290 fn goals_data<'a>(&self, goals: &'a Self::InternedGoals) -> &'a [Goal<Interner>] {
291 goals
292 }
293
294 fn intern_substitution<E>(
295 &self,
296 data: impl IntoIterator<Item = Result<GenericArg, E>>,
297 ) -> Result<Self::InternedSubstitution, E> {
298 Ok(Interned::new(InternedWrapper(data.into_iter().collect::<Result<_, _>>()?)))
299 }
300
301 fn substitution_data<'a>(
302 &self,
303 substitution: &'a Self::InternedSubstitution,
304 ) -> &'a [GenericArg] {
305 &substitution.as_ref().0
306 }
307
308 fn intern_program_clause(
309 &self,
310 data: chalk_ir::ProgramClauseData<Self>,
311 ) -> Self::InternedProgramClause {
312 data
313 }
314
315 fn program_clause_data<'a>(
316 &self,
317 clause: &'a Self::InternedProgramClause,
318 ) -> &'a chalk_ir::ProgramClauseData<Self> {
319 clause
320 }
321
322 fn intern_program_clauses<E>(
323 &self,
324 data: impl IntoIterator<Item = Result<chalk_ir::ProgramClause<Self>, E>>,
325 ) -> Result<Self::InternedProgramClauses, E> {
326 Ok(Interned::new(InternedWrapper(data.into_iter().collect::<Result<_, _>>()?)))
327 }
328
329 fn program_clauses_data<'a>(
330 &self,
331 clauses: &'a Self::InternedProgramClauses,
332 ) -> &'a [chalk_ir::ProgramClause<Self>] {
333 &clauses
334 }
335
336 fn intern_quantified_where_clauses<E>(
337 &self,
338 data: impl IntoIterator<Item = Result<chalk_ir::QuantifiedWhereClause<Self>, E>>,
339 ) -> Result<Self::InternedQuantifiedWhereClauses, E> {
340 Ok(Interned::new(InternedWrapper(data.into_iter().collect::<Result<_, _>>()?)))
341 }
342
343 fn quantified_where_clauses_data<'a>(
344 &self,
345 clauses: &'a Self::InternedQuantifiedWhereClauses,
346 ) -> &'a [chalk_ir::QuantifiedWhereClause<Self>] {
347 clauses
348 }
349
350 fn intern_generic_arg_kinds<E>(
351 &self,
352 data: impl IntoIterator<Item = Result<chalk_ir::VariableKind<Self>, E>>,
353 ) -> Result<Self::InternedVariableKinds, E> {
354 Ok(Interned::new(InternedWrapper(data.into_iter().collect::<Result<_, _>>()?)))
355 }
356
357 fn variable_kinds_data<'a>(
358 &self,
359 parameter_kinds: &'a Self::InternedVariableKinds,
360 ) -> &'a [chalk_ir::VariableKind<Self>] {
361 &parameter_kinds.as_ref().0
362 }
363
364 fn intern_canonical_var_kinds<E>(
365 &self,
366 data: impl IntoIterator<Item = Result<chalk_ir::CanonicalVarKind<Self>, E>>,
367 ) -> Result<Self::InternedCanonicalVarKinds, E> {
368 Ok(Interned::new(InternedWrapper(data.into_iter().collect::<Result<_, _>>()?)))
369 }
370
371 fn canonical_var_kinds_data<'a>(
372 &self,
373 canonical_var_kinds: &'a Self::InternedCanonicalVarKinds,
374 ) -> &'a [chalk_ir::CanonicalVarKind<Self>] {
375 &canonical_var_kinds
376 }
377
378 fn intern_constraints<E>(
379 &self,
380 data: impl IntoIterator<Item = Result<chalk_ir::InEnvironment<chalk_ir::Constraint<Self>>, E>>,
381 ) -> Result<Self::InternedConstraints, E> {
382 data.into_iter().collect()
383 }
384
385 fn constraints_data<'a>(
386 &self,
387 constraints: &'a Self::InternedConstraints,
388 ) -> &'a [chalk_ir::InEnvironment<chalk_ir::Constraint<Self>>] {
389 constraints
390 }
391 fn debug_closure_id(
392 _fn_def_id: chalk_ir::ClosureId<Self>,
393 _fmt: &mut fmt::Formatter<'_>,
394 ) -> Option<fmt::Result> {
395 None
396 }
397 fn debug_constraints(
398 _clauses: &chalk_ir::Constraints<Self>,
399 _fmt: &mut fmt::Formatter<'_>,
400 ) -> Option<fmt::Result> {
401 None
402 }
403
404 fn intern_variances<E>(
405 &self,
406 data: impl IntoIterator<Item = Result<chalk_ir::Variance, E>>,
407 ) -> Result<Self::InternedVariances, E> {
408 Ok(Interned::new(InternedWrapper(data.into_iter().collect::<Result<_, _>>()?)))
409 }
410
411 fn variances_data<'a>(
412 &self,
413 variances: &'a Self::InternedVariances,
414 ) -> &'a [chalk_ir::Variance] {
415 &variances
416 }
417}
418
419impl chalk_ir::interner::HasInterner for Interner {
420 type Interner = Self;
421}
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}
diff --git a/crates/hir_ty/src/traits/chalk/tls.rs b/crates/hir_ty/src/traits/chalk/tls.rs
deleted file mode 100644
index 8892a63a9..000000000
--- a/crates/hir_ty/src/traits/chalk/tls.rs
+++ /dev/null
@@ -1,275 +0,0 @@
1//! Implementation of Chalk debug helper functions using TLS.
2use std::fmt;
3
4use chalk_ir::{AliasTy, GenericArg, Goal, Goals, Lifetime, ProgramClauseImplication};
5use itertools::Itertools;
6
7use super::{from_chalk, Interner};
8use crate::{db::HirDatabase, from_assoc_type_id, CallableDefId};
9use hir_def::{AdtId, AssocContainerId, Lookup, TypeAliasId};
10
11pub(crate) use unsafe_tls::{set_current_program, with_current_program};
12
13pub(crate) struct DebugContext<'a>(&'a dyn HirDatabase);
14
15impl DebugContext<'_> {
16 pub(crate) fn debug_struct_id(
17 &self,
18 id: super::AdtId,
19 f: &mut fmt::Formatter<'_>,
20 ) -> Result<(), fmt::Error> {
21 let name = match id.0 {
22 AdtId::StructId(it) => self.0.struct_data(it).name.clone(),
23 AdtId::UnionId(it) => self.0.union_data(it).name.clone(),
24 AdtId::EnumId(it) => self.0.enum_data(it).name.clone(),
25 };
26 write!(f, "{}", name)
27 }
28
29 pub(crate) fn debug_trait_id(
30 &self,
31 id: super::TraitId,
32 fmt: &mut fmt::Formatter<'_>,
33 ) -> Result<(), fmt::Error> {
34 let trait_: hir_def::TraitId = from_chalk(self.0, id);
35 let trait_data = self.0.trait_data(trait_);
36 write!(fmt, "{}", trait_data.name)
37 }
38
39 pub(crate) fn debug_assoc_type_id(
40 &self,
41 id: super::AssocTypeId,
42 fmt: &mut fmt::Formatter<'_>,
43 ) -> Result<(), fmt::Error> {
44 let type_alias: TypeAliasId = from_assoc_type_id(id);
45 let type_alias_data = self.0.type_alias_data(type_alias);
46 let trait_ = match type_alias.lookup(self.0.upcast()).container {
47 AssocContainerId::TraitId(t) => t,
48 _ => panic!("associated type not in trait"),
49 };
50 let trait_data = self.0.trait_data(trait_);
51 write!(fmt, "{}::{}", trait_data.name, type_alias_data.name)
52 }
53
54 pub(crate) fn debug_opaque_ty_id(
55 &self,
56 opaque_ty_id: chalk_ir::OpaqueTyId<Interner>,
57 fmt: &mut fmt::Formatter<'_>,
58 ) -> Result<(), fmt::Error> {
59 fmt.debug_struct("OpaqueTyId").field("index", &opaque_ty_id.0).finish()
60 }
61
62 pub(crate) fn debug_alias(
63 &self,
64 alias_ty: &AliasTy<Interner>,
65 fmt: &mut fmt::Formatter<'_>,
66 ) -> Result<(), fmt::Error> {
67 match alias_ty {
68 AliasTy::Projection(projection_ty) => self.debug_projection_ty(projection_ty, fmt),
69 AliasTy::Opaque(opaque_ty) => self.debug_opaque_ty(opaque_ty, fmt),
70 }
71 }
72
73 pub(crate) fn debug_projection_ty(
74 &self,
75 projection_ty: &chalk_ir::ProjectionTy<Interner>,
76 fmt: &mut fmt::Formatter<'_>,
77 ) -> Result<(), fmt::Error> {
78 let type_alias = from_assoc_type_id(projection_ty.associated_ty_id);
79 let type_alias_data = self.0.type_alias_data(type_alias);
80 let trait_ = match type_alias.lookup(self.0.upcast()).container {
81 AssocContainerId::TraitId(t) => t,
82 _ => panic!("associated type not in trait"),
83 };
84 let trait_data = self.0.trait_data(trait_);
85 let params = projection_ty.substitution.as_slice(&Interner);
86 write!(fmt, "<{:?} as {}", &params[0], trait_data.name,)?;
87 if params.len() > 1 {
88 write!(
89 fmt,
90 "<{}>",
91 &params[1..].iter().format_with(", ", |x, f| f(&format_args!("{:?}", x))),
92 )?;
93 }
94 write!(fmt, ">::{}", type_alias_data.name)
95 }
96
97 pub(crate) fn debug_opaque_ty(
98 &self,
99 opaque_ty: &chalk_ir::OpaqueTy<Interner>,
100 fmt: &mut fmt::Formatter<'_>,
101 ) -> Result<(), fmt::Error> {
102 write!(fmt, "{:?}", opaque_ty.opaque_ty_id)
103 }
104
105 pub(crate) fn debug_ty(
106 &self,
107 ty: &chalk_ir::Ty<Interner>,
108 fmt: &mut fmt::Formatter<'_>,
109 ) -> Result<(), fmt::Error> {
110 write!(fmt, "{:?}", ty.data(&Interner))
111 }
112
113 pub(crate) fn debug_lifetime(
114 &self,
115 lifetime: &Lifetime<Interner>,
116 fmt: &mut fmt::Formatter<'_>,
117 ) -> Result<(), fmt::Error> {
118 write!(fmt, "{:?}", lifetime.data(&Interner))
119 }
120
121 pub(crate) fn debug_generic_arg(
122 &self,
123 parameter: &GenericArg<Interner>,
124 fmt: &mut fmt::Formatter<'_>,
125 ) -> Result<(), fmt::Error> {
126 write!(fmt, "{:?}", parameter.data(&Interner).inner_debug())
127 }
128
129 pub(crate) fn debug_goal(
130 &self,
131 goal: &Goal<Interner>,
132 fmt: &mut fmt::Formatter<'_>,
133 ) -> Result<(), fmt::Error> {
134 let goal_data = goal.data(&Interner);
135 write!(fmt, "{:?}", goal_data)
136 }
137
138 pub(crate) fn debug_goals(
139 &self,
140 goals: &Goals<Interner>,
141 fmt: &mut fmt::Formatter<'_>,
142 ) -> Result<(), fmt::Error> {
143 write!(fmt, "{:?}", goals.debug(&Interner))
144 }
145
146 pub(crate) fn debug_program_clause_implication(
147 &self,
148 pci: &ProgramClauseImplication<Interner>,
149 fmt: &mut fmt::Formatter<'_>,
150 ) -> Result<(), fmt::Error> {
151 write!(fmt, "{:?}", pci.debug(&Interner))
152 }
153
154 pub(crate) fn debug_substitution(
155 &self,
156 substitution: &chalk_ir::Substitution<Interner>,
157 fmt: &mut fmt::Formatter<'_>,
158 ) -> Result<(), fmt::Error> {
159 write!(fmt, "{:?}", substitution.debug(&Interner))
160 }
161
162 pub(crate) fn debug_separator_trait_ref(
163 &self,
164 separator_trait_ref: &chalk_ir::SeparatorTraitRef<Interner>,
165 fmt: &mut fmt::Formatter<'_>,
166 ) -> Result<(), fmt::Error> {
167 write!(fmt, "{:?}", separator_trait_ref.debug(&Interner))
168 }
169
170 pub(crate) fn debug_fn_def_id(
171 &self,
172 fn_def_id: chalk_ir::FnDefId<Interner>,
173 fmt: &mut fmt::Formatter<'_>,
174 ) -> Result<(), fmt::Error> {
175 let def: CallableDefId = from_chalk(self.0, fn_def_id);
176 let name = match def {
177 CallableDefId::FunctionId(ff) => self.0.function_data(ff).name.clone(),
178 CallableDefId::StructId(s) => self.0.struct_data(s).name.clone(),
179 CallableDefId::EnumVariantId(e) => {
180 let enum_data = self.0.enum_data(e.parent);
181 enum_data.variants[e.local_id].name.clone()
182 }
183 };
184 match def {
185 CallableDefId::FunctionId(_) => write!(fmt, "{{fn {}}}", name),
186 CallableDefId::StructId(_) | CallableDefId::EnumVariantId(_) => {
187 write!(fmt, "{{ctor {}}}", name)
188 }
189 }
190 }
191
192 pub(crate) fn debug_const(
193 &self,
194 _constant: &chalk_ir::Const<Interner>,
195 fmt: &mut fmt::Formatter<'_>,
196 ) -> fmt::Result {
197 write!(fmt, "const")
198 }
199
200 pub(crate) fn debug_variable_kinds(
201 &self,
202 variable_kinds: &chalk_ir::VariableKinds<Interner>,
203 fmt: &mut fmt::Formatter<'_>,
204 ) -> fmt::Result {
205 write!(fmt, "{:?}", variable_kinds.as_slice(&Interner))
206 }
207 pub(crate) fn debug_variable_kinds_with_angles(
208 &self,
209 variable_kinds: &chalk_ir::VariableKinds<Interner>,
210 fmt: &mut fmt::Formatter<'_>,
211 ) -> fmt::Result {
212 write!(fmt, "{:?}", variable_kinds.inner_debug(&Interner))
213 }
214 pub(crate) fn debug_canonical_var_kinds(
215 &self,
216 canonical_var_kinds: &chalk_ir::CanonicalVarKinds<Interner>,
217 fmt: &mut fmt::Formatter<'_>,
218 ) -> fmt::Result {
219 write!(fmt, "{:?}", canonical_var_kinds.as_slice(&Interner))
220 }
221 pub(crate) fn debug_program_clause(
222 &self,
223 clause: &chalk_ir::ProgramClause<Interner>,
224 fmt: &mut fmt::Formatter<'_>,
225 ) -> fmt::Result {
226 write!(fmt, "{:?}", clause.data(&Interner))
227 }
228 pub(crate) fn debug_program_clauses(
229 &self,
230 clauses: &chalk_ir::ProgramClauses<Interner>,
231 fmt: &mut fmt::Formatter<'_>,
232 ) -> fmt::Result {
233 write!(fmt, "{:?}", clauses.as_slice(&Interner))
234 }
235 pub(crate) fn debug_quantified_where_clauses(
236 &self,
237 clauses: &chalk_ir::QuantifiedWhereClauses<Interner>,
238 fmt: &mut fmt::Formatter<'_>,
239 ) -> fmt::Result {
240 write!(fmt, "{:?}", clauses.as_slice(&Interner))
241 }
242}
243
244mod unsafe_tls {
245 use super::DebugContext;
246 use crate::db::HirDatabase;
247 use scoped_tls::scoped_thread_local;
248
249 scoped_thread_local!(static PROGRAM: DebugContext);
250
251 pub(crate) fn with_current_program<R>(
252 op: impl for<'a> FnOnce(Option<&'a DebugContext<'a>>) -> R,
253 ) -> R {
254 if PROGRAM.is_set() {
255 PROGRAM.with(|prog| op(Some(prog)))
256 } else {
257 op(None)
258 }
259 }
260
261 pub(crate) fn set_current_program<OP, R>(p: &dyn HirDatabase, op: OP) -> R
262 where
263 OP: FnOnce() -> R,
264 {
265 let ctx = DebugContext(p);
266 // we're transmuting the lifetime in the DebugContext to static. This is
267 // fine because we only keep the reference for the lifetime of this
268 // function, *and* the only way to access the context is through
269 // `with_current_program`, which hides the lifetime through the `for`
270 // type.
271 let static_p: &DebugContext<'static> =
272 unsafe { std::mem::transmute::<&DebugContext, &DebugContext<'static>>(&ctx) };
273 PROGRAM.set(static_p, || op())
274 }
275}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-09 18:29:21 +0100