Binders::subst -> substitute
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ad20f00844
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05eba0db3d
@ -235,7 +235,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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write!(f, "{}", self.name(f.db))?;
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let bounds = f.db.generic_predicates_for_param(self.id);
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let substs = TyBuilder::type_params_subst(f.db, self.id.parent);
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let predicates = bounds.iter().cloned().map(|b| b.subst(&substs)).collect::<Vec<_>>();
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let predicates = bounds.iter().cloned().map(|b| b.substitute(&substs)).collect::<Vec<_>>();
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if !(predicates.is_empty() || f.omit_verbose_types()) {
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write_bounds_like_dyn_trait_with_prefix(":", &predicates, f)?;
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}
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@ -516,7 +516,7 @@ pub fn signature_ty(&self, db: &dyn HirDatabase) -> Type {
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VariantDef::Variant(it) => it.parent.id.into(),
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};
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let substs = TyBuilder::type_params_subst(db, generic_def_id);
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let ty = db.field_types(var_id)[self.id].clone().subst(&substs);
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let ty = db.field_types(var_id)[self.id].clone().substitute(&substs);
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Type::new(db, self.parent.module(db).id.krate(), var_id, ty)
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}
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@ -1503,7 +1503,7 @@ pub fn default(self, db: &dyn HirDatabase) -> Option<Type> {
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let krate = self.id.parent.module(db.upcast()).krate();
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let ty = params.get(local_idx)?.clone();
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let subst = TyBuilder::type_params_subst(db, self.id.parent);
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let ty = ty.subst(&subst.prefix(local_idx));
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let ty = ty.substitute(&subst.prefix(local_idx));
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Some(Type::new_with_resolver_inner(db, krate, &resolver, ty))
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}
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}
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@ -1916,7 +1916,7 @@ pub fn fields(&self, db: &dyn HirDatabase) -> Vec<(Field, Type)> {
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.iter()
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.map(|(local_id, ty)| {
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let def = Field { parent: variant_id.into(), id: local_id };
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let ty = ty.clone().subst(substs);
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let ty = ty.clone().substitute(substs);
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(def, self.derived(ty))
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})
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.collect()
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@ -339,7 +339,7 @@ fn missing_fields(
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.into_iter()
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.map(|local_id| {
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let field = FieldId { parent: variant, local_id };
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let ty = field_types[local_id].clone().subst(substs);
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let ty = field_types[local_id].clone().substitute(substs);
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(field.into(), Type::new_with_resolver_inner(db, krate, &self.resolver, ty))
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})
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.collect()
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@ -139,7 +139,7 @@ pub fn fill_with_defaults(
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} else {
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// each default can depend on the previous parameters
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let subst_so_far = Substitution::intern(self.vec.clone());
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self.vec.push(default_ty.clone().subst(&subst_so_far).cast(&Interner));
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self.vec.push(default_ty.clone().substitute(&subst_so_far).cast(&Interner));
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}
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}
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self
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@ -200,7 +200,7 @@ fn subst_binders(b: Binders<T>) -> Self {
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pub fn build(self) -> T {
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let (b, subst) = self.build_internal();
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b.subst(&subst)
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b.substitute(&subst)
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}
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}
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@ -352,7 +352,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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let data = (*datas)
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.as_ref()
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.map(|rpit| rpit.impl_traits[idx as usize].bounds.clone());
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let bounds = data.subst(parameters);
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let bounds = data.substitute(parameters);
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bounds.into_value_and_skipped_binders().0
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} else {
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Vec::new()
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@ -397,7 +397,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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}
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TyKind::FnDef(def, parameters) => {
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let def = from_chalk(f.db, *def);
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let sig = f.db.callable_item_signature(def).subst(parameters);
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let sig = f.db.callable_item_signature(def).substitute(parameters);
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match def {
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CallableDefId::FunctionId(ff) => {
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write!(f, "fn {}", f.db.function_data(ff).name)?
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@ -482,7 +482,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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(_, Some(default_parameter)) => {
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let actual_default = default_parameter
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.clone()
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.subst(¶meters.prefix(i));
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.substitute(¶meters.prefix(i));
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if parameter.assert_ty_ref(&Interner) != &actual_default
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{
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default_from = i + 1;
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@ -542,7 +542,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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let data = (*datas)
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.as_ref()
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.map(|rpit| rpit.impl_traits[idx as usize].bounds.clone());
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let bounds = data.subst(¶meters);
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let bounds = data.substitute(¶meters);
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write_bounds_like_dyn_trait_with_prefix("impl", bounds.skip_binders(), f)?;
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// FIXME: it would maybe be good to distinguish this from the alias type (when debug printing), and to show the substitution
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}
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@ -595,7 +595,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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let bounds =
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f.db.generic_predicates(id.parent)
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.into_iter()
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.map(|pred| pred.clone().subst(&substs))
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.map(|pred| pred.clone().substitute(&substs))
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.filter(|wc| match &wc.skip_binders() {
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WhereClause::Implemented(tr) => {
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tr.self_type_parameter(&Interner) == self
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@ -629,7 +629,7 @@ fn hir_fmt(&self, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
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let data = (*datas)
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.as_ref()
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.map(|rpit| rpit.impl_traits[idx as usize].bounds.clone());
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let bounds = data.subst(&opaque_ty.substitution);
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let bounds = data.substitute(&opaque_ty.substitution);
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write_bounds_like_dyn_trait_with_prefix("impl", bounds.skip_binders(), f)?;
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}
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ImplTraitId::AsyncBlockTypeImplTrait(..) => {
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@ -470,25 +470,25 @@ fn resolve_variant(&mut self, path: Option<&Path>) -> (Ty, Option<VariantId>) {
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TypeNs::AdtId(AdtId::StructId(strukt)) => {
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let substs = ctx.substs_from_path(path, strukt.into(), true);
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let ty = self.db.ty(strukt.into());
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let ty = self.insert_type_vars(ty.subst(&substs));
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let ty = self.insert_type_vars(ty.substitute(&substs));
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forbid_unresolved_segments((ty, Some(strukt.into())), unresolved)
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}
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TypeNs::AdtId(AdtId::UnionId(u)) => {
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let substs = ctx.substs_from_path(path, u.into(), true);
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let ty = self.db.ty(u.into());
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let ty = self.insert_type_vars(ty.subst(&substs));
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let ty = self.insert_type_vars(ty.substitute(&substs));
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forbid_unresolved_segments((ty, Some(u.into())), unresolved)
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}
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TypeNs::EnumVariantId(var) => {
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let substs = ctx.substs_from_path(path, var.into(), true);
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let ty = self.db.ty(var.parent.into());
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let ty = self.insert_type_vars(ty.subst(&substs));
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let ty = self.insert_type_vars(ty.substitute(&substs));
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forbid_unresolved_segments((ty, Some(var.into())), unresolved)
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}
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TypeNs::SelfType(impl_id) => {
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let generics = crate::utils::generics(self.db.upcast(), impl_id.into());
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let substs = generics.type_params_subst(self.db);
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let ty = self.db.impl_self_ty(impl_id).subst(&substs);
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let ty = self.db.impl_self_ty(impl_id).substitute(&substs);
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match unresolved {
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None => {
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let variant = ty_variant(&ty);
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@ -419,7 +419,7 @@ fn infer_expr_inner(&mut self, tgt_expr: ExprId, expected: &Expectation) -> Ty {
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self.result.record_field_resolutions.insert(field.expr, field_def);
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}
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let field_ty = field_def.map_or(self.err_ty(), |it| {
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field_types[it.local_id].clone().subst(&substs)
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field_types[it.local_id].clone().substitute(&substs)
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});
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self.infer_expr_coerce(field.expr, &Expectation::has_type(field_ty));
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}
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@ -462,7 +462,7 @@ fn infer_expr_inner(&mut self, tgt_expr: ExprId, expected: &Expectation) -> Ty {
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Some(
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self.db.field_types((*s).into())[field.local_id]
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.clone()
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.subst(¶meters),
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.substitute(¶meters),
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)
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} else {
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None
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@ -476,7 +476,7 @@ fn infer_expr_inner(&mut self, tgt_expr: ExprId, expected: &Expectation) -> Ty {
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Some(
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self.db.field_types((*u).into())[field.local_id]
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.clone()
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.subst(¶meters),
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.substitute(¶meters),
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)
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} else {
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None
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@ -852,7 +852,7 @@ fn infer_method_call(
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None => (receiver_ty, Binders::empty(&Interner, self.err_ty()), None),
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};
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let substs = self.substs_for_method_call(def_generics, generic_args, &derefed_receiver_ty);
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let method_ty = method_ty.subst(&substs);
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let method_ty = method_ty.substitute(&substs);
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let method_ty = self.insert_type_vars(method_ty);
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self.register_obligations_for_call(&method_ty);
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let (expected_receiver_ty, param_tys, ret_ty) = match method_ty.callable_sig(self.db) {
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@ -950,7 +950,7 @@ fn register_obligations_for_call(&mut self, callable_ty: &Ty) {
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let generic_predicates = self.db.generic_predicates(def.into());
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for predicate in generic_predicates.iter() {
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let (predicate, binders) =
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predicate.clone().subst(parameters).into_value_and_skipped_binders();
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predicate.clone().substitute(parameters).into_value_and_skipped_binders();
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always!(binders.len(&Interner) == 0); // quantified where clauses not yet handled
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self.push_obligation(predicate.cast(&Interner));
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}
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@ -49,7 +49,7 @@ fn infer_tuple_struct_pat(
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let expected_ty = var_data
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.as_ref()
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.and_then(|d| d.field(&Name::new_tuple_field(i)))
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.map_or(self.err_ty(), |field| field_tys[field].clone().subst(&substs));
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.map_or(self.err_ty(), |field| field_tys[field].clone().substitute(&substs));
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let expected_ty = self.normalize_associated_types_in(expected_ty);
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self.infer_pat(subpat, &expected_ty, default_bm);
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}
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@ -84,7 +84,7 @@ fn infer_record_pat(
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}
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let expected_ty = matching_field
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.map_or(self.err_ty(), |field| field_tys[field].clone().subst(&substs));
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.map_or(self.err_ty(), |field| field_tys[field].clone().substitute(&substs));
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let expected_ty = self.normalize_associated_types_in(expected_ty);
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self.infer_pat(subpat.pat, &expected_ty, default_bm);
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}
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@ -81,9 +81,9 @@ fn resolve_value_path(
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ValueNs::ImplSelf(impl_id) => {
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let generics = crate::utils::generics(self.db.upcast(), impl_id.into());
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let substs = generics.type_params_subst(self.db);
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let ty = self.db.impl_self_ty(impl_id).subst(&substs);
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let ty = self.db.impl_self_ty(impl_id).substitute(&substs);
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if let Some((AdtId::StructId(struct_id), substs)) = ty.as_adt() {
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let ty = self.db.value_ty(struct_id.into()).subst(&substs);
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let ty = self.db.value_ty(struct_id.into()).substitute(&substs);
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return Some(ty);
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} else {
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// FIXME: diagnostic, invalid Self reference
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@ -243,7 +243,7 @@ fn resolve_ty_assoc_item(
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let impl_substs = TyBuilder::subst_for_def(self.db, impl_id)
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.fill(iter::repeat_with(|| self.table.new_type_var()))
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.build();
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let impl_self_ty = self.db.impl_self_ty(impl_id).subst(&impl_substs);
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let impl_self_ty = self.db.impl_self_ty(impl_id).substitute(&impl_substs);
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self.unify(&impl_self_ty, &ty);
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Some(impl_substs)
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}
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@ -130,7 +130,7 @@ pub fn wrap_empty(value: T) -> Self
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impl<T: TypeWalk> Binders<T> {
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/// Substitutes all variables.
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pub fn subst(self, subst: &Substitution) -> T {
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pub fn substitute(self, subst: &Substitution) -> T {
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let (value, binders) = self.into_value_and_skipped_binders();
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assert_eq!(subst.len(&Interner), binders.len(&Interner));
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value.subst_bound_vars(subst)
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@ -362,7 +362,7 @@ pub fn callable_sig(&self, db: &dyn HirDatabase) -> Option<CallableSig> {
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TyKind::FnDef(def, parameters) => {
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let callable_def = db.lookup_intern_callable_def((*def).into());
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let sig = db.callable_item_signature(callable_def);
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Some(sig.subst(¶meters))
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Some(sig.substitute(¶meters))
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}
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TyKind::Closure(.., substs) => {
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let sig_param = substs.at(&Interner, 0).assert_ty_ref(&Interner);
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@ -436,7 +436,7 @@ pub fn impl_trait_bounds(&self, db: &dyn HirDatabase) -> Option<Vec<QuantifiedWh
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let data = (*it)
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.as_ref()
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.map(|rpit| rpit.impl_traits[idx as usize].bounds.clone());
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data.subst(&opaque_ty.substitution)
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data.substitute(&opaque_ty.substitution)
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})
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}
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// It always has an parameter for Future::Output type.
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@ -455,7 +455,7 @@ pub fn impl_trait_bounds(&self, db: &dyn HirDatabase) -> Option<Vec<QuantifiedWh
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let predicates = db
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.generic_predicates(id.parent)
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.into_iter()
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.map(|pred| pred.clone().subst(&substs))
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.map(|pred| pred.clone().substitute(&substs))
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.filter(|wc| match &wc.skip_binders() {
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WhereClause::Implemented(tr) => {
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tr.self_type_parameter(&Interner) == self
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@ -414,7 +414,7 @@ pub(crate) fn lower_partly_resolved_path(
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TypeParamLoweringMode::Placeholder => generics.type_params_subst(self.db),
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TypeParamLoweringMode::Variable => generics.bound_vars_subst(self.in_binders),
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};
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self.db.impl_self_ty(impl_id).subst(&substs)
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self.db.impl_self_ty(impl_id).substitute(&substs)
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}
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TypeNs::AdtSelfType(adt) => {
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let generics = generics(self.db.upcast(), adt.into());
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@ -422,7 +422,7 @@ pub(crate) fn lower_partly_resolved_path(
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TypeParamLoweringMode::Placeholder => generics.type_params_subst(self.db),
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TypeParamLoweringMode::Variable => generics.bound_vars_subst(self.in_binders),
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};
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self.db.ty(adt.into()).subst(&substs)
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self.db.ty(adt.into()).substitute(&substs)
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}
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TypeNs::AdtId(it) => self.lower_path_inner(resolved_segment, it.into(), infer_args),
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@ -516,7 +516,7 @@ fn lower_path_inner(
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TyDefId::TypeAliasId(it) => Some(it.into()),
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};
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let substs = self.substs_from_path_segment(segment, generic_def, infer_args, None);
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self.db.ty(typeable).subst(&substs)
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self.db.ty(typeable).substitute(&substs)
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}
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/// Collect generic arguments from a path into a `Substs`. See also
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@ -620,7 +620,7 @@ fn substs_from_path_segment(
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for default_ty in defaults.iter().skip(substs.len()) {
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// each default can depend on the previous parameters
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let substs_so_far = Substitution::from_iter(&Interner, substs.clone());
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substs.push(default_ty.clone().subst(&substs_so_far));
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substs.push(default_ty.clone().substitute(&substs_so_far));
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}
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}
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}
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@ -712,7 +712,7 @@ pub(crate) fn inherent_impl_substs(
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let vars = TyBuilder::subst_for_def(db, impl_id)
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.fill_with_bound_vars(DebruijnIndex::INNERMOST, self_ty.binders.len(&Interner))
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.build();
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let self_ty_with_vars = db.impl_self_ty(impl_id).subst(&vars);
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let self_ty_with_vars = db.impl_self_ty(impl_id).substitute(&vars);
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let mut kinds = self_ty.binders.interned().to_vec();
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kinds.extend(
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iter::repeat(chalk_ir::WithKind::new(
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@ -774,7 +774,7 @@ fn transform_receiver_ty(
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AssocContainerId::ModuleId(_) => unreachable!(),
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};
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let sig = db.callable_item_signature(function_id.into());
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Some(sig.map(|s| s.params()[0].clone()).subst(&substs))
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Some(sig.map(|s| s.params()[0].clone()).substitute(&substs))
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}
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pub fn implements_trait(
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@ -519,7 +519,7 @@ pub(super) fn convert_where_clauses(
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let generic_predicates = db.generic_predicates(def);
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let mut result = Vec::with_capacity(generic_predicates.len());
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for pred in generic_predicates.iter() {
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result.push(pred.clone().subst(substs).to_chalk(db));
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result.push(pred.clone().substitute(substs).to_chalk(db));
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}
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result
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}
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@ -72,7 +72,7 @@ fn direct_super_trait_refs(db: &dyn HirDatabase, trait_ref: &TraitRef) -> Vec<Tr
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_ => None,
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})
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})
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.map(|pred| pred.subst(&trait_ref.substitution))
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.map(|pred| pred.substitute(&trait_ref.substitution))
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.collect()
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}
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