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|
//! Conversion code from/to Chalk.
use std::sync::Arc;
use log::debug;
use chalk_ir::{
cast::Cast, Identifier, ImplId, Parameter, PlaceholderIndex, TypeId, TypeKindId, TypeName,
UniverseIndex,
};
use chalk_rust_ir::{AssociatedTyDatum, ImplDatum, StructDatum, TraitDatum};
use ra_db::salsa::{InternId, InternKey};
use test_utils::tested_by;
use super::{Canonical, ChalkContext, Obligation};
use crate::{
db::HirDatabase,
generics::GenericDef,
ty::display::HirDisplay,
ty::{
ApplicationTy, CallableDef, GenericPredicate, ProjectionTy, Substs, TraitRef, Ty, TypeCtor,
TypeWalk,
},
AssocItem, Crate, HasGenericParams, ImplBlock, Trait, TypeAlias,
};
/// This represents a trait whose name we could not resolve.
const UNKNOWN_TRAIT: chalk_ir::TraitId =
chalk_ir::TraitId(chalk_ir::RawId { index: u32::max_value() });
pub(super) trait ToChalk {
type Chalk;
fn to_chalk(self, db: &impl HirDatabase) -> Self::Chalk;
fn from_chalk(db: &impl HirDatabase, chalk: Self::Chalk) -> Self;
}
pub(super) fn from_chalk<T, ChalkT>(db: &impl HirDatabase, chalk: ChalkT) -> T
where
T: ToChalk<Chalk = ChalkT>,
{
T::from_chalk(db, chalk)
}
impl ToChalk for Ty {
type Chalk = chalk_ir::Ty;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::Ty {
match self {
Ty::Apply(apply_ty) => {
let name = match apply_ty.ctor {
TypeCtor::AssociatedType(type_alias) => {
let type_id = type_alias.to_chalk(db);
TypeName::AssociatedType(type_id)
}
_ => {
// other TypeCtors get interned and turned into a chalk StructId
let struct_id = apply_ty.ctor.to_chalk(db);
TypeName::TypeKindId(struct_id.into())
}
};
let parameters = apply_ty.parameters.to_chalk(db);
chalk_ir::ApplicationTy { name, parameters }.cast()
}
Ty::Projection(proj_ty) => {
let associated_ty_id = proj_ty.associated_ty.to_chalk(db);
let parameters = proj_ty.parameters.to_chalk(db);
chalk_ir::ProjectionTy { associated_ty_id, parameters }.cast()
}
Ty::Param { idx, .. } => {
PlaceholderIndex { ui: UniverseIndex::ROOT, idx: idx as usize }.to_ty()
}
Ty::Bound(idx) => chalk_ir::Ty::BoundVar(idx as usize),
Ty::Infer(_infer_ty) => panic!("uncanonicalized infer ty"),
// FIXME this is clearly incorrect, but probably not too incorrect
// and I'm not sure what to actually do with Ty::Unknown
// maybe an alternative would be `for<T> T`? (meaningless in rust, but expressible in chalk's Ty)
//
// FIXME also dyn and impl Trait are currently handled like Unknown because Chalk doesn't have them yet
Ty::Unknown | Ty::Dyn(_) | Ty::Opaque(_) => {
PlaceholderIndex { ui: UniverseIndex::ROOT, idx: usize::max_value() }.to_ty()
}
}
}
fn from_chalk(db: &impl HirDatabase, chalk: chalk_ir::Ty) -> Self {
match chalk {
chalk_ir::Ty::Apply(apply_ty) => {
// FIXME this is kind of hacky due to the fact that
// TypeName::Placeholder is a Ty::Param on our side
match apply_ty.name {
TypeName::TypeKindId(TypeKindId::StructId(struct_id)) => {
let ctor = from_chalk(db, struct_id);
let parameters = from_chalk(db, apply_ty.parameters);
Ty::Apply(ApplicationTy { ctor, parameters })
}
TypeName::AssociatedType(type_id) => {
let ctor = TypeCtor::AssociatedType(from_chalk(db, type_id));
let parameters = from_chalk(db, apply_ty.parameters);
Ty::Apply(ApplicationTy { ctor, parameters })
}
// FIXME handle TypeKindId::Trait/Type here
TypeName::TypeKindId(_) => unimplemented!(),
TypeName::Placeholder(idx) => {
assert_eq!(idx.ui, UniverseIndex::ROOT);
Ty::Param { idx: idx.idx as u32, name: crate::Name::missing() }
}
}
}
chalk_ir::Ty::Projection(proj) => {
let associated_ty = from_chalk(db, proj.associated_ty_id);
let parameters = from_chalk(db, proj.parameters);
Ty::Projection(ProjectionTy { associated_ty, parameters })
}
chalk_ir::Ty::ForAll(_) => unimplemented!(),
chalk_ir::Ty::BoundVar(idx) => Ty::Bound(idx as u32),
chalk_ir::Ty::InferenceVar(_iv) => panic!("unexpected chalk infer ty"),
}
}
}
impl ToChalk for Substs {
type Chalk = Vec<chalk_ir::Parameter>;
fn to_chalk(self, db: &impl HirDatabase) -> Vec<Parameter> {
self.iter().map(|ty| ty.clone().to_chalk(db).cast()).collect()
}
fn from_chalk(db: &impl HirDatabase, parameters: Vec<chalk_ir::Parameter>) -> Substs {
parameters
.into_iter()
.map(|p| match p {
chalk_ir::Parameter(chalk_ir::ParameterKind::Ty(ty)) => from_chalk(db, ty),
chalk_ir::Parameter(chalk_ir::ParameterKind::Lifetime(_)) => unimplemented!(),
})
.collect::<Vec<_>>()
.into()
}
}
impl ToChalk for TraitRef {
type Chalk = chalk_ir::TraitRef;
fn to_chalk(self: TraitRef, db: &impl HirDatabase) -> chalk_ir::TraitRef {
let trait_id = self.trait_.to_chalk(db);
let parameters = self.substs.to_chalk(db);
chalk_ir::TraitRef { trait_id, parameters }
}
fn from_chalk(db: &impl HirDatabase, trait_ref: chalk_ir::TraitRef) -> Self {
let trait_ = from_chalk(db, trait_ref.trait_id);
let substs = from_chalk(db, trait_ref.parameters);
TraitRef { trait_, substs }
}
}
impl ToChalk for Trait {
type Chalk = chalk_ir::TraitId;
fn to_chalk(self, _db: &impl HirDatabase) -> chalk_ir::TraitId {
self.id.into()
}
fn from_chalk(_db: &impl HirDatabase, trait_id: chalk_ir::TraitId) -> Trait {
Trait { id: trait_id.into() }
}
}
impl ToChalk for TypeCtor {
type Chalk = chalk_ir::StructId;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::StructId {
db.intern_type_ctor(self).into()
}
fn from_chalk(db: &impl HirDatabase, struct_id: chalk_ir::StructId) -> TypeCtor {
db.lookup_intern_type_ctor(struct_id.into())
}
}
impl ToChalk for ImplBlock {
type Chalk = chalk_ir::ImplId;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::ImplId {
db.intern_impl_block(self).into()
}
fn from_chalk(db: &impl HirDatabase, impl_id: chalk_ir::ImplId) -> ImplBlock {
db.lookup_intern_impl_block(impl_id.into())
}
}
impl ToChalk for TypeAlias {
type Chalk = chalk_ir::TypeId;
fn to_chalk(self, _db: &impl HirDatabase) -> chalk_ir::TypeId {
self.id.into()
}
fn from_chalk(_db: &impl HirDatabase, impl_id: chalk_ir::TypeId) -> TypeAlias {
TypeAlias { id: impl_id.into() }
}
}
impl ToChalk for GenericPredicate {
type Chalk = chalk_ir::QuantifiedWhereClause;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::QuantifiedWhereClause {
match self {
GenericPredicate::Implemented(trait_ref) => {
make_binders(chalk_ir::WhereClause::Implemented(trait_ref.to_chalk(db)), 0)
}
GenericPredicate::Projection(projection_pred) => make_binders(
chalk_ir::WhereClause::ProjectionEq(chalk_ir::ProjectionEq {
projection: projection_pred.projection_ty.to_chalk(db),
ty: projection_pred.ty.to_chalk(db),
}),
0,
),
GenericPredicate::Error => {
let impossible_trait_ref = chalk_ir::TraitRef {
trait_id: UNKNOWN_TRAIT,
parameters: vec![Ty::Unknown.to_chalk(db).cast()],
};
make_binders(chalk_ir::WhereClause::Implemented(impossible_trait_ref), 0)
}
}
}
fn from_chalk(
_db: &impl HirDatabase,
_where_clause: chalk_ir::QuantifiedWhereClause,
) -> GenericPredicate {
// This should never need to be called
unimplemented!()
}
}
impl ToChalk for ProjectionTy {
type Chalk = chalk_ir::ProjectionTy;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::ProjectionTy {
chalk_ir::ProjectionTy {
associated_ty_id: self.associated_ty.to_chalk(db),
parameters: self.parameters.to_chalk(db),
}
}
fn from_chalk(db: &impl HirDatabase, projection_ty: chalk_ir::ProjectionTy) -> ProjectionTy {
ProjectionTy {
associated_ty: from_chalk(db, projection_ty.associated_ty_id),
parameters: from_chalk(db, projection_ty.parameters),
}
}
}
impl ToChalk for super::ProjectionPredicate {
type Chalk = chalk_ir::Normalize;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::Normalize {
chalk_ir::Normalize {
projection: self.projection_ty.to_chalk(db),
ty: self.ty.to_chalk(db),
}
}
fn from_chalk(_db: &impl HirDatabase, _normalize: chalk_ir::Normalize) -> Self {
unimplemented!()
}
}
impl ToChalk for Obligation {
type Chalk = chalk_ir::DomainGoal;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::DomainGoal {
match self {
Obligation::Trait(tr) => tr.to_chalk(db).cast(),
Obligation::Projection(pr) => pr.to_chalk(db).cast(),
}
}
fn from_chalk(_db: &impl HirDatabase, _goal: chalk_ir::DomainGoal) -> Self {
unimplemented!()
}
}
impl<T> ToChalk for Canonical<T>
where
T: ToChalk,
{
type Chalk = chalk_ir::Canonical<T::Chalk>;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::Canonical<T::Chalk> {
let parameter = chalk_ir::ParameterKind::Ty(chalk_ir::UniverseIndex::ROOT);
let value = self.value.to_chalk(db);
let canonical = chalk_ir::Canonical { value, binders: vec![parameter; self.num_vars] };
canonical
}
fn from_chalk(db: &impl HirDatabase, canonical: chalk_ir::Canonical<T::Chalk>) -> Canonical<T> {
Canonical { num_vars: canonical.binders.len(), value: from_chalk(db, canonical.value) }
}
}
impl ToChalk for Arc<super::TraitEnvironment> {
type Chalk = Arc<chalk_ir::Environment>;
fn to_chalk(self, db: &impl HirDatabase) -> Arc<chalk_ir::Environment> {
let mut clauses = Vec::new();
for pred in &self.predicates {
if pred.is_error() {
// for env, we just ignore errors
continue;
}
let program_clause: chalk_ir::ProgramClause = pred.clone().to_chalk(db).cast();
clauses.push(program_clause.into_from_env_clause());
}
chalk_ir::Environment::new().add_clauses(clauses)
}
fn from_chalk(
_db: &impl HirDatabase,
_env: Arc<chalk_ir::Environment>,
) -> Arc<super::TraitEnvironment> {
unimplemented!()
}
}
impl<T: ToChalk> ToChalk for super::InEnvironment<T> {
type Chalk = chalk_ir::InEnvironment<T::Chalk>;
fn to_chalk(self, db: &impl HirDatabase) -> chalk_ir::InEnvironment<T::Chalk> {
chalk_ir::InEnvironment {
environment: self.environment.to_chalk(db),
goal: self.value.to_chalk(db),
}
}
fn from_chalk(
db: &impl HirDatabase,
in_env: chalk_ir::InEnvironment<T::Chalk>,
) -> super::InEnvironment<T> {
super::InEnvironment {
environment: from_chalk(db, in_env.environment),
value: from_chalk(db, in_env.goal),
}
}
}
fn make_binders<T>(value: T, num_vars: usize) -> chalk_ir::Binders<T> {
chalk_ir::Binders {
value,
binders: std::iter::repeat(chalk_ir::ParameterKind::Ty(())).take(num_vars).collect(),
}
}
fn convert_where_clauses(
db: &impl HirDatabase,
def: GenericDef,
substs: &Substs,
) -> Vec<chalk_ir::QuantifiedWhereClause> {
let generic_predicates = db.generic_predicates(def);
let mut result = Vec::with_capacity(generic_predicates.len());
for pred in generic_predicates.iter() {
if pred.is_error() {
// HACK: Return just the single predicate (which is always false
// anyway), otherwise Chalk can easily get into slow situations
return vec![pred.clone().subst(substs).to_chalk(db)];
}
result.push(pred.clone().subst(substs).to_chalk(db));
}
result
}
impl<'a, DB> chalk_solve::RustIrDatabase for ChalkContext<'a, DB>
where
DB: HirDatabase,
{
fn associated_ty_data(&self, id: TypeId) -> Arc<AssociatedTyDatum> {
self.db.associated_ty_data(id)
}
fn trait_datum(&self, trait_id: chalk_ir::TraitId) -> Arc<TraitDatum> {
self.db.trait_datum(self.krate, trait_id)
}
fn struct_datum(&self, struct_id: chalk_ir::StructId) -> Arc<StructDatum> {
self.db.struct_datum(self.krate, struct_id)
}
fn impl_datum(&self, impl_id: ImplId) -> Arc<ImplDatum> {
self.db.impl_datum(self.krate, impl_id)
}
fn impls_for_trait(
&self,
trait_id: chalk_ir::TraitId,
_parameters: &[Parameter],
) -> Vec<ImplId> {
debug!("impls_for_trait {:?}", trait_id);
if trait_id == UNKNOWN_TRAIT {
return Vec::new();
}
let trait_: Trait = from_chalk(self.db, trait_id);
let result: Vec<_> = self
.db
.impls_for_trait(self.krate, trait_)
.iter()
.map(|impl_block| impl_block.to_chalk(self.db))
.collect();
debug!("impls_for_trait returned {} impls", result.len());
result
}
fn impl_provided_for(
&self,
auto_trait_id: chalk_ir::TraitId,
struct_id: chalk_ir::StructId,
) -> bool {
debug!("impl_provided_for {:?}, {:?}", auto_trait_id, struct_id);
false // FIXME
}
fn type_name(&self, _id: TypeKindId) -> Identifier {
unimplemented!()
}
fn split_projection<'p>(
&self,
projection: &'p chalk_ir::ProjectionTy,
) -> (Arc<AssociatedTyDatum>, &'p [Parameter], &'p [Parameter]) {
debug!("split_projection {:?}", projection);
// we don't support GATs, so I think this should always be correct currently
(self.db.associated_ty_data(projection.associated_ty_id), &projection.parameters, &[])
}
fn custom_clauses(&self) -> Vec<chalk_ir::ProgramClause> {
vec![]
}
fn local_impls_to_coherence_check(
&self,
_trait_id: chalk_ir::TraitId,
) -> Vec<chalk_ir::ImplId> {
// We don't do coherence checking (yet)
unimplemented!()
}
}
pub(crate) fn associated_ty_data_query(
db: &impl HirDatabase,
id: TypeId,
) -> Arc<AssociatedTyDatum> {
debug!("associated_ty_data {:?}", id);
let type_alias: TypeAlias = from_chalk(db, id);
let trait_ = match type_alias.container(db) {
Some(crate::Container::Trait(t)) => t,
_ => panic!("associated type not in trait"),
};
let generic_params = type_alias.generic_params(db);
let parameter_kinds = generic_params
.params_including_parent()
.into_iter()
.map(|p| chalk_ir::ParameterKind::Ty(lalrpop_intern::intern(&p.name.to_string())))
.collect();
let datum = AssociatedTyDatum {
trait_id: trait_.to_chalk(db),
id,
name: lalrpop_intern::intern(&type_alias.name(db).to_string()),
parameter_kinds,
// FIXME add bounds and where clauses
bounds: vec![],
where_clauses: vec![],
};
Arc::new(datum)
}
pub(crate) fn trait_datum_query(
db: &impl HirDatabase,
krate: Crate,
trait_id: chalk_ir::TraitId,
) -> Arc<TraitDatum> {
debug!("trait_datum {:?}", trait_id);
if trait_id == UNKNOWN_TRAIT {
let trait_datum_bound = chalk_rust_ir::TraitDatumBound {
trait_ref: chalk_ir::TraitRef {
trait_id: UNKNOWN_TRAIT,
parameters: vec![chalk_ir::Ty::BoundVar(0).cast()],
},
associated_ty_ids: Vec::new(),
where_clauses: Vec::new(),
flags: chalk_rust_ir::TraitFlags {
non_enumerable: true,
auto: false,
marker: false,
upstream: true,
fundamental: false,
},
};
return Arc::new(TraitDatum { binders: make_binders(trait_datum_bound, 1) });
}
let trait_: Trait = from_chalk(db, trait_id);
debug!("trait {:?} = {:?}", trait_id, trait_.name(db));
let generic_params = trait_.generic_params(db);
let bound_vars = Substs::bound_vars(&generic_params);
let trait_ref = trait_.trait_ref(db).subst(&bound_vars).to_chalk(db);
let flags = chalk_rust_ir::TraitFlags {
auto: trait_.is_auto(db),
upstream: trait_.module(db).krate(db) != Some(krate),
non_enumerable: true,
// FIXME set these flags correctly
marker: false,
fundamental: false,
};
let where_clauses = convert_where_clauses(db, trait_.into(), &bound_vars);
let associated_ty_ids = trait_
.items(db)
.into_iter()
.filter_map(|trait_item| match trait_item {
crate::AssocItem::TypeAlias(type_alias) => Some(type_alias),
_ => None,
})
.map(|type_alias| type_alias.to_chalk(db))
.collect();
let trait_datum_bound =
chalk_rust_ir::TraitDatumBound { trait_ref, where_clauses, flags, associated_ty_ids };
let trait_datum = TraitDatum { binders: make_binders(trait_datum_bound, bound_vars.len()) };
Arc::new(trait_datum)
}
pub(crate) fn struct_datum_query(
db: &impl HirDatabase,
krate: Crate,
struct_id: chalk_ir::StructId,
) -> Arc<StructDatum> {
debug!("struct_datum {:?}", struct_id);
let type_ctor = from_chalk(db, struct_id);
debug!("struct {:?} = {:?}", struct_id, type_ctor);
// FIXME might be nicer if we can create a fake GenericParams for the TypeCtor
// FIXME extract this to a method on Ty
let (num_params, where_clauses, upstream) = match type_ctor {
TypeCtor::Bool
| TypeCtor::Char
| TypeCtor::Int(_)
| TypeCtor::Float(_)
| TypeCtor::Never
| TypeCtor::Str => (0, vec![], true),
TypeCtor::Slice | TypeCtor::Array | TypeCtor::RawPtr(_) | TypeCtor::Ref(_) => {
(1, vec![], true)
}
TypeCtor::FnPtr { num_args } => (num_args as usize + 1, vec![], true),
TypeCtor::Tuple { cardinality } => (cardinality as usize, vec![], true),
TypeCtor::FnDef(callable) => {
tested_by!(trait_resolution_on_fn_type);
let upstream = match callable {
CallableDef::Function(f) => f.module(db).krate(db),
CallableDef::Struct(s) => s.module(db).krate(db),
CallableDef::EnumVariant(v) => v.parent_enum(db).module(db).krate(db),
} != Some(krate);
let generic_def: GenericDef = callable.into();
let generic_params = generic_def.generic_params(db);
let bound_vars = Substs::bound_vars(&generic_params);
let where_clauses = convert_where_clauses(db, generic_def, &bound_vars);
(generic_params.count_params_including_parent(), where_clauses, upstream)
}
TypeCtor::Adt(adt) => {
let generic_params = adt.generic_params(db);
let bound_vars = Substs::bound_vars(&generic_params);
let where_clauses = convert_where_clauses(db, adt.into(), &bound_vars);
(
generic_params.count_params_including_parent(),
where_clauses,
adt.krate(db) != Some(krate),
)
}
TypeCtor::AssociatedType(type_alias) => {
let generic_params = type_alias.generic_params(db);
let bound_vars = Substs::bound_vars(&generic_params);
let where_clauses = convert_where_clauses(db, type_alias.into(), &bound_vars);
(
generic_params.count_params_including_parent(),
where_clauses,
type_alias.krate(db) != Some(krate),
)
}
};
let flags = chalk_rust_ir::StructFlags {
upstream,
// FIXME set fundamental flag correctly
fundamental: false,
};
let self_ty = chalk_ir::ApplicationTy {
name: TypeName::TypeKindId(type_ctor.to_chalk(db).into()),
parameters: (0..num_params).map(|i| chalk_ir::Ty::BoundVar(i).cast()).collect(),
};
let struct_datum_bound = chalk_rust_ir::StructDatumBound {
self_ty,
fields: Vec::new(), // FIXME add fields (only relevant for auto traits)
where_clauses,
flags,
};
let struct_datum = StructDatum { binders: make_binders(struct_datum_bound, num_params) };
Arc::new(struct_datum)
}
pub(crate) fn impl_datum_query(
db: &impl HirDatabase,
krate: Crate,
impl_id: ImplId,
) -> Arc<ImplDatum> {
let _p = ra_prof::profile("impl_datum");
debug!("impl_datum {:?}", impl_id);
let impl_block: ImplBlock = from_chalk(db, impl_id);
let generic_params = impl_block.generic_params(db);
let bound_vars = Substs::bound_vars(&generic_params);
let trait_ref = impl_block
.target_trait_ref(db)
.expect("FIXME handle unresolved impl block trait ref")
.subst(&bound_vars);
let impl_type = if impl_block.module().krate(db) == Some(krate) {
chalk_rust_ir::ImplType::Local
} else {
chalk_rust_ir::ImplType::External
};
let where_clauses = convert_where_clauses(db, impl_block.into(), &bound_vars);
let negative = impl_block.is_negative(db);
debug!(
"impl {:?}: {}{} where {:?}",
impl_id,
if negative { "!" } else { "" },
trait_ref.display(db),
where_clauses
);
let trait_ = trait_ref.trait_;
let trait_ref = trait_ref.to_chalk(db);
let associated_ty_values = impl_block
.items(db)
.into_iter()
.filter_map(|item| match item {
AssocItem::TypeAlias(t) => Some(t),
_ => None,
})
.filter_map(|t| {
let assoc_ty = trait_.associated_type_by_name(db, &t.name(db))?;
let ty = db.type_for_def(t.into(), crate::Namespace::Types).subst(&bound_vars);
Some(chalk_rust_ir::AssociatedTyValue {
impl_id,
associated_ty_id: assoc_ty.to_chalk(db),
value: chalk_ir::Binders {
value: chalk_rust_ir::AssociatedTyValueBound { ty: ty.to_chalk(db) },
binders: vec![], // we don't support GATs yet
},
})
})
.collect();
let impl_datum_bound = chalk_rust_ir::ImplDatumBound {
trait_ref: if negative {
chalk_rust_ir::PolarizedTraitRef::Negative(trait_ref)
} else {
chalk_rust_ir::PolarizedTraitRef::Positive(trait_ref)
},
where_clauses,
associated_ty_values,
impl_type,
};
debug!("impl_datum: {:?}", impl_datum_bound);
let impl_datum = ImplDatum { binders: make_binders(impl_datum_bound, bound_vars.len()) };
Arc::new(impl_datum)
}
fn id_from_chalk<T: InternKey>(chalk_id: chalk_ir::RawId) -> T {
T::from_intern_id(InternId::from(chalk_id.index))
}
fn id_to_chalk<T: InternKey>(salsa_id: T) -> chalk_ir::RawId {
chalk_ir::RawId { index: salsa_id.as_intern_id().as_u32() }
}
impl From<chalk_ir::TraitId> for crate::ids::TraitId {
fn from(trait_id: chalk_ir::TraitId) -> Self {
id_from_chalk(trait_id.0)
}
}
impl From<crate::ids::TraitId> for chalk_ir::TraitId {
fn from(trait_id: crate::ids::TraitId) -> Self {
chalk_ir::TraitId(id_to_chalk(trait_id))
}
}
impl From<chalk_ir::TypeId> for crate::ids::TypeAliasId {
fn from(type_id: chalk_ir::TypeId) -> Self {
id_from_chalk(type_id.0)
}
}
impl From<crate::ids::TypeAliasId> for chalk_ir::TypeId {
fn from(type_id: crate::ids::TypeAliasId) -> Self {
chalk_ir::TypeId(id_to_chalk(type_id))
}
}
impl From<chalk_ir::StructId> for crate::ids::TypeCtorId {
fn from(struct_id: chalk_ir::StructId) -> Self {
id_from_chalk(struct_id.0)
}
}
impl From<crate::ids::TypeCtorId> for chalk_ir::StructId {
fn from(type_ctor_id: crate::ids::TypeCtorId) -> Self {
chalk_ir::StructId(id_to_chalk(type_ctor_id))
}
}
impl From<chalk_ir::ImplId> for crate::ids::GlobalImplId {
fn from(impl_id: chalk_ir::ImplId) -> Self {
id_from_chalk(impl_id.0)
}
}
impl From<crate::ids::GlobalImplId> for chalk_ir::ImplId {
fn from(impl_id: crate::ids::GlobalImplId) -> Self {
chalk_ir::ImplId(id_to_chalk(impl_id))
}
}
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