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-rw-r--r--crates/hir_ty/src/traits/chalk/interner.rs392
-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, 798 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 bd9395b7e..000000000
--- a/crates/hir_ty/src/traits/chalk/interner.rs
+++ /dev/null
@@ -1,392 +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 base_db::salsa::InternId;
6use chalk_ir::{GenericArg, Goal, GoalData};
7use hir_def::TypeAliasId;
8use smallvec::SmallVec;
9use std::{fmt, sync::Arc};
10
11#[derive(Debug, Copy, Clone, Hash, PartialOrd, Ord, PartialEq, Eq)]
12pub struct Interner;
13
14pub(crate) type AssocTypeId = chalk_ir::AssocTypeId<Interner>;
15pub(crate) type AssociatedTyDatum = chalk_solve::rust_ir::AssociatedTyDatum<Interner>;
16pub(crate) type TraitId = chalk_ir::TraitId<Interner>;
17pub(crate) type TraitDatum = chalk_solve::rust_ir::TraitDatum<Interner>;
18pub(crate) type AdtId = chalk_ir::AdtId<Interner>;
19pub(crate) type StructDatum = chalk_solve::rust_ir::AdtDatum<Interner>;
20pub(crate) type ImplId = chalk_ir::ImplId<Interner>;
21pub(crate) type ImplDatum = chalk_solve::rust_ir::ImplDatum<Interner>;
22pub(crate) type AssociatedTyValueId = chalk_solve::rust_ir::AssociatedTyValueId<Interner>;
23pub(crate) type AssociatedTyValue = chalk_solve::rust_ir::AssociatedTyValue<Interner>;
24pub(crate) type FnDefDatum = chalk_solve::rust_ir::FnDefDatum<Interner>;
25pub(crate) type OpaqueTyId = chalk_ir::OpaqueTyId<Interner>;
26pub(crate) type OpaqueTyDatum = chalk_solve::rust_ir::OpaqueTyDatum<Interner>;
27pub(crate) type Variances = chalk_ir::Variances<Interner>;
28
29impl chalk_ir::interner::Interner for Interner {
30 type InternedType = Arc<chalk_ir::TyData<Self>>;
31 type InternedLifetime = chalk_ir::LifetimeData<Self>;
32 type InternedConst = Arc<chalk_ir::ConstData<Self>>;
33 type InternedConcreteConst = ();
34 type InternedGenericArg = chalk_ir::GenericArgData<Self>;
35 type InternedGoal = Arc<GoalData<Self>>;
36 type InternedGoals = Vec<Goal<Self>>;
37 type InternedSubstitution = SmallVec<[GenericArg<Self>; 2]>;
38 type InternedProgramClause = Arc<chalk_ir::ProgramClauseData<Self>>;
39 type InternedProgramClauses = Arc<[chalk_ir::ProgramClause<Self>]>;
40 type InternedQuantifiedWhereClauses = Vec<chalk_ir::QuantifiedWhereClause<Self>>;
41 type InternedVariableKinds = Vec<chalk_ir::VariableKind<Self>>;
42 type InternedCanonicalVarKinds = Vec<chalk_ir::CanonicalVarKind<Self>>;
43 type InternedConstraints = Vec<chalk_ir::InEnvironment<chalk_ir::Constraint<Self>>>;
44 type InternedVariances = Arc<[chalk_ir::Variance]>;
45 type DefId = InternId;
46 type InternedAdtId = hir_def::AdtId;
47 type Identifier = TypeAliasId;
48 type FnAbi = ();
49
50 fn debug_adt_id(type_kind_id: AdtId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
51 tls::with_current_program(|prog| Some(prog?.debug_struct_id(type_kind_id, fmt)))
52 }
53
54 fn debug_trait_id(type_kind_id: TraitId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
55 tls::with_current_program(|prog| Some(prog?.debug_trait_id(type_kind_id, fmt)))
56 }
57
58 fn debug_assoc_type_id(id: AssocTypeId, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
59 tls::with_current_program(|prog| Some(prog?.debug_assoc_type_id(id, fmt)))
60 }
61
62 fn debug_alias(
63 alias: &chalk_ir::AliasTy<Interner>,
64 fmt: &mut fmt::Formatter<'_>,
65 ) -> Option<fmt::Result> {
66 tls::with_current_program(|prog| Some(prog?.debug_alias(alias, fmt)))
67 }
68
69 fn debug_projection_ty(
70 proj: &chalk_ir::ProjectionTy<Interner>,
71 fmt: &mut fmt::Formatter<'_>,
72 ) -> Option<fmt::Result> {
73 tls::with_current_program(|prog| Some(prog?.debug_projection_ty(proj, fmt)))
74 }
75
76 fn debug_opaque_ty(
77 opaque_ty: &chalk_ir::OpaqueTy<Interner>,
78 fmt: &mut fmt::Formatter<'_>,
79 ) -> Option<fmt::Result> {
80 tls::with_current_program(|prog| Some(prog?.debug_opaque_ty(opaque_ty, fmt)))
81 }
82
83 fn debug_opaque_ty_id(
84 opaque_ty_id: chalk_ir::OpaqueTyId<Self>,
85 fmt: &mut fmt::Formatter<'_>,
86 ) -> Option<fmt::Result> {
87 tls::with_current_program(|prog| Some(prog?.debug_opaque_ty_id(opaque_ty_id, fmt)))
88 }
89
90 fn debug_ty(ty: &chalk_ir::Ty<Interner>, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
91 tls::with_current_program(|prog| Some(prog?.debug_ty(ty, fmt)))
92 }
93
94 fn debug_lifetime(
95 lifetime: &chalk_ir::Lifetime<Interner>,
96 fmt: &mut fmt::Formatter<'_>,
97 ) -> Option<fmt::Result> {
98 tls::with_current_program(|prog| Some(prog?.debug_lifetime(lifetime, fmt)))
99 }
100
101 fn debug_generic_arg(
102 parameter: &GenericArg<Interner>,
103 fmt: &mut fmt::Formatter<'_>,
104 ) -> Option<fmt::Result> {
105 tls::with_current_program(|prog| Some(prog?.debug_generic_arg(parameter, fmt)))
106 }
107
108 fn debug_goal(goal: &Goal<Interner>, fmt: &mut fmt::Formatter<'_>) -> Option<fmt::Result> {
109 tls::with_current_program(|prog| Some(prog?.debug_goal(goal, fmt)))
110 }
111
112 fn debug_goals(
113 goals: &chalk_ir::Goals<Interner>,
114 fmt: &mut fmt::Formatter<'_>,
115 ) -> Option<fmt::Result> {
116 tls::with_current_program(|prog| Some(prog?.debug_goals(goals, fmt)))
117 }
118
119 fn debug_program_clause_implication(
120 pci: &chalk_ir::ProgramClauseImplication<Interner>,
121 fmt: &mut fmt::Formatter<'_>,
122 ) -> Option<fmt::Result> {
123 tls::with_current_program(|prog| Some(prog?.debug_program_clause_implication(pci, fmt)))
124 }
125
126 fn debug_substitution(
127 substitution: &chalk_ir::Substitution<Interner>,
128 fmt: &mut fmt::Formatter<'_>,
129 ) -> Option<fmt::Result> {
130 tls::with_current_program(|prog| Some(prog?.debug_substitution(substitution, fmt)))
131 }
132
133 fn debug_separator_trait_ref(
134 separator_trait_ref: &chalk_ir::SeparatorTraitRef<Interner>,
135 fmt: &mut fmt::Formatter<'_>,
136 ) -> Option<fmt::Result> {
137 tls::with_current_program(|prog| {
138 Some(prog?.debug_separator_trait_ref(separator_trait_ref, fmt))
139 })
140 }
141
142 fn debug_fn_def_id(
143 fn_def_id: chalk_ir::FnDefId<Self>,
144 fmt: &mut fmt::Formatter<'_>,
145 ) -> Option<fmt::Result> {
146 tls::with_current_program(|prog| Some(prog?.debug_fn_def_id(fn_def_id, fmt)))
147 }
148 fn debug_const(
149 constant: &chalk_ir::Const<Self>,
150 fmt: &mut fmt::Formatter<'_>,
151 ) -> Option<fmt::Result> {
152 tls::with_current_program(|prog| Some(prog?.debug_const(constant, fmt)))
153 }
154 fn debug_variable_kinds(
155 variable_kinds: &chalk_ir::VariableKinds<Self>,
156 fmt: &mut fmt::Formatter<'_>,
157 ) -> Option<fmt::Result> {
158 tls::with_current_program(|prog| Some(prog?.debug_variable_kinds(variable_kinds, fmt)))
159 }
160 fn debug_variable_kinds_with_angles(
161 variable_kinds: &chalk_ir::VariableKinds<Self>,
162 fmt: &mut fmt::Formatter<'_>,
163 ) -> Option<fmt::Result> {
164 tls::with_current_program(|prog| {
165 Some(prog?.debug_variable_kinds_with_angles(variable_kinds, fmt))
166 })
167 }
168 fn debug_canonical_var_kinds(
169 canonical_var_kinds: &chalk_ir::CanonicalVarKinds<Self>,
170 fmt: &mut fmt::Formatter<'_>,
171 ) -> Option<fmt::Result> {
172 tls::with_current_program(|prog| {
173 Some(prog?.debug_canonical_var_kinds(canonical_var_kinds, fmt))
174 })
175 }
176 fn debug_program_clause(
177 clause: &chalk_ir::ProgramClause<Self>,
178 fmt: &mut fmt::Formatter<'_>,
179 ) -> Option<fmt::Result> {
180 tls::with_current_program(|prog| Some(prog?.debug_program_clause(clause, fmt)))
181 }
182 fn debug_program_clauses(
183 clauses: &chalk_ir::ProgramClauses<Self>,
184 fmt: &mut fmt::Formatter<'_>,
185 ) -> Option<fmt::Result> {
186 tls::with_current_program(|prog| Some(prog?.debug_program_clauses(clauses, fmt)))
187 }
188 fn debug_quantified_where_clauses(
189 clauses: &chalk_ir::QuantifiedWhereClauses<Self>,
190 fmt: &mut fmt::Formatter<'_>,
191 ) -> Option<fmt::Result> {
192 tls::with_current_program(|prog| Some(prog?.debug_quantified_where_clauses(clauses, fmt)))
193 }
194
195 fn intern_ty(&self, kind: chalk_ir::TyKind<Self>) -> Self::InternedType {
196 let flags = kind.compute_flags(self);
197 Arc::new(chalk_ir::TyData { kind, flags })
198 }
199
200 fn ty_data<'a>(&self, ty: &'a Self::InternedType) -> &'a chalk_ir::TyData<Self> {
201 ty
202 }
203
204 fn intern_lifetime(&self, lifetime: chalk_ir::LifetimeData<Self>) -> Self::InternedLifetime {
205 lifetime
206 }
207
208 fn lifetime_data<'a>(
209 &self,
210 lifetime: &'a Self::InternedLifetime,
211 ) -> &'a chalk_ir::LifetimeData<Self> {
212 lifetime
213 }
214
215 fn intern_const(&self, constant: chalk_ir::ConstData<Self>) -> Self::InternedConst {
216 Arc::new(constant)
217 }
218
219 fn const_data<'a>(&self, constant: &'a Self::InternedConst) -> &'a chalk_ir::ConstData<Self> {
220 constant
221 }
222
223 fn const_eq(
224 &self,
225 _ty: &Self::InternedType,
226 _c1: &Self::InternedConcreteConst,
227 _c2: &Self::InternedConcreteConst,
228 ) -> bool {
229 true
230 }
231
232 fn intern_generic_arg(
233 &self,
234 parameter: chalk_ir::GenericArgData<Self>,
235 ) -> Self::InternedGenericArg {
236 parameter
237 }
238
239 fn generic_arg_data<'a>(
240 &self,
241 parameter: &'a Self::InternedGenericArg,
242 ) -> &'a chalk_ir::GenericArgData<Self> {
243 parameter
244 }
245
246 fn intern_goal(&self, goal: GoalData<Self>) -> Self::InternedGoal {
247 Arc::new(goal)
248 }
249
250 fn intern_goals<E>(
251 &self,
252 data: impl IntoIterator<Item = Result<Goal<Self>, E>>,
253 ) -> Result<Self::InternedGoals, E> {
254 data.into_iter().collect()
255 }
256
257 fn goal_data<'a>(&self, goal: &'a Self::InternedGoal) -> &'a GoalData<Self> {
258 goal
259 }
260
261 fn goals_data<'a>(&self, goals: &'a Self::InternedGoals) -> &'a [Goal<Interner>] {
262 goals
263 }
264
265 fn intern_substitution<E>(
266 &self,
267 data: impl IntoIterator<Item = Result<GenericArg<Self>, E>>,
268 ) -> Result<Self::InternedSubstitution, E> {
269 data.into_iter().collect()
270 }
271
272 fn substitution_data<'a>(
273 &self,
274 substitution: &'a Self::InternedSubstitution,
275 ) -> &'a [GenericArg<Self>] {
276 substitution
277 }
278
279 fn intern_program_clause(
280 &self,
281 data: chalk_ir::ProgramClauseData<Self>,
282 ) -> Self::InternedProgramClause {
283 Arc::new(data)
284 }
285
286 fn program_clause_data<'a>(
287 &self,
288 clause: &'a Self::InternedProgramClause,
289 ) -> &'a chalk_ir::ProgramClauseData<Self> {
290 clause
291 }
292
293 fn intern_program_clauses<E>(
294 &self,
295 data: impl IntoIterator<Item = Result<chalk_ir::ProgramClause<Self>, E>>,
296 ) -> Result<Self::InternedProgramClauses, E> {
297 data.into_iter().collect()
298 }
299
300 fn program_clauses_data<'a>(
301 &self,
302 clauses: &'a Self::InternedProgramClauses,
303 ) -> &'a [chalk_ir::ProgramClause<Self>] {
304 &clauses
305 }
306
307 fn intern_quantified_where_clauses<E>(
308 &self,
309 data: impl IntoIterator<Item = Result<chalk_ir::QuantifiedWhereClause<Self>, E>>,
310 ) -> Result<Self::InternedQuantifiedWhereClauses, E> {
311 data.into_iter().collect()
312 }
313
314 fn quantified_where_clauses_data<'a>(
315 &self,
316 clauses: &'a Self::InternedQuantifiedWhereClauses,
317 ) -> &'a [chalk_ir::QuantifiedWhereClause<Self>] {
318 clauses
319 }
320
321 fn intern_generic_arg_kinds<E>(
322 &self,
323 data: impl IntoIterator<Item = Result<chalk_ir::VariableKind<Self>, E>>,
324 ) -> Result<Self::InternedVariableKinds, E> {
325 data.into_iter().collect()
326 }
327
328 fn variable_kinds_data<'a>(
329 &self,
330 parameter_kinds: &'a Self::InternedVariableKinds,
331 ) -> &'a [chalk_ir::VariableKind<Self>] {
332 &parameter_kinds
333 }
334
335 fn intern_canonical_var_kinds<E>(
336 &self,
337 data: impl IntoIterator<Item = Result<chalk_ir::CanonicalVarKind<Self>, E>>,
338 ) -> Result<Self::InternedCanonicalVarKinds, E> {
339 data.into_iter().collect()
340 }
341
342 fn canonical_var_kinds_data<'a>(
343 &self,
344 canonical_var_kinds: &'a Self::InternedCanonicalVarKinds,
345 ) -> &'a [chalk_ir::CanonicalVarKind<Self>] {
346 &canonical_var_kinds
347 }
348
349 fn intern_constraints<E>(
350 &self,
351 data: impl IntoIterator<Item = Result<chalk_ir::InEnvironment<chalk_ir::Constraint<Self>>, E>>,
352 ) -> Result<Self::InternedConstraints, E> {
353 data.into_iter().collect()
354 }
355
356 fn constraints_data<'a>(
357 &self,
358 constraints: &'a Self::InternedConstraints,
359 ) -> &'a [chalk_ir::InEnvironment<chalk_ir::Constraint<Self>>] {
360 constraints
361 }
362 fn debug_closure_id(
363 _fn_def_id: chalk_ir::ClosureId<Self>,
364 _fmt: &mut fmt::Formatter<'_>,
365 ) -> Option<fmt::Result> {
366 None
367 }
368 fn debug_constraints(
369 _clauses: &chalk_ir::Constraints<Self>,
370 _fmt: &mut fmt::Formatter<'_>,
371 ) -> Option<fmt::Result> {
372 None
373 }
374
375 fn intern_variances<E>(
376 &self,
377 data: impl IntoIterator<Item = Result<chalk_ir::Variance, E>>,
378 ) -> Result<Self::InternedVariances, E> {
379 data.into_iter().collect()
380 }
381
382 fn variances_data<'a>(
383 &self,
384 variances: &'a Self::InternedVariances,
385 ) -> &'a [chalk_ir::Variance] {
386 &variances
387 }
388}
389
390impl chalk_ir::interner::HasInterner for Interner {
391 type Interner = Self;
392}
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 7818f6387..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.interned()[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.interned()[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 2024-11-19 13:29:10 +0000