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Use TypeAliasId in Ty, pt 1

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This commit is contained in:
Aleksey Kladov 2019-11-25 18:44:36 +03:00
parent 3e32ac4f86
commit 6d2ec8765d
2 changed files with 29 additions and 11 deletions
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26
crates/ra_hir/src/ty.rs
View File

@ -17,7 +17,10 @@ use std::ops::Deref;
use std::sync::Arc;
use std::{fmt, iter, mem};
use hir_def::{generics::GenericParams, AdtId, DefWithBodyId, GenericDefId};
use hir_def::{
generics::GenericParams, AdtId, ContainerId, DefWithBodyId, GenericDefId, HasModule, Lookup,
TypeAliasId,
};
use ra_db::{impl_intern_key, salsa};
use crate::{
@ -107,7 +110,7 @@ pub enum TypeCtor {
/// when we have tried to normalize a projection like `T::Item` but
/// couldn't find a better representation. In that case, we generate
/// an **application type** like `(Iterator::Item)<T>`.
AssociatedType(TypeAlias),
AssociatedType(TypeAliasId),
/// The type of a specific closure.
///
@ -147,7 +150,7 @@ impl TypeCtor {
generic_params.count_params_including_parent()
}
TypeCtor::AssociatedType(type_alias) => {
let generic_params = db.generic_params(type_alias.id.into());
let generic_params = db.generic_params(type_alias.into());
generic_params.count_params_including_parent()
}
TypeCtor::FnPtr { num_args } => num_args as usize + 1,
@ -173,7 +176,9 @@ impl TypeCtor {
TypeCtor::Closure { .. } => None,
TypeCtor::Adt(adt) => adt.krate(db),
TypeCtor::FnDef(callable) => Some(callable.krate(db).into()),
TypeCtor::AssociatedType(type_alias) => type_alias.krate(db),
TypeCtor::AssociatedType(type_alias) => {
Some(type_alias.lookup(db).module(db).krate.into())
}
}
}
@ -194,7 +199,7 @@ impl TypeCtor {
| TypeCtor::Closure { .. } => None,
TypeCtor::Adt(adt) => Some(adt.into()),
TypeCtor::FnDef(callable) => Some(callable.into()),
TypeCtor::AssociatedType(type_alias) => Some(type_alias.id.into()),
TypeCtor::AssociatedType(type_alias) => Some(type_alias.into()),
}
}
}
@ -896,11 +901,12 @@ impl HirDisplay for ApplicationTy {
}
}
TypeCtor::AssociatedType(type_alias) => {
let trait_name = type_alias
.parent_trait(f.db)
.and_then(|t| t.name(f.db))
.unwrap_or_else(Name::missing);
let name = type_alias.name(f.db);
let trait_ = match type_alias.lookup(f.db).container {
ContainerId::TraitId(it) => it,
_ => panic!("not an associated type"),
};
let trait_name = f.db.trait_data(trait_).name.clone().unwrap_or_else(Name::missing);
let name = f.db.type_alias_data(type_alias).name.clone();
write!(f, "{}::{}", trait_name, name)?;
if self.parameters.len() > 0 {
write!(f, "<")?;

14
crates/ra_hir/src/ty/traits/chalk.rs
View File

@ -9,7 +9,7 @@ use chalk_ir::{
};
use chalk_rust_ir::{AssociatedTyDatum, AssociatedTyValue, ImplDatum, StructDatum, TraitDatum};
use hir_def::{lang_item::LangItemTarget, GenericDefId};
use hir_def::{lang_item::LangItemTarget, GenericDefId, TypeAliasId};
use hir_expand::name;
use ra_db::salsa::{InternId, InternKey};
@ -215,6 +215,18 @@ impl ToChalk for TypeAlias {
}
}
impl ToChalk for TypeAliasId {
type Chalk = chalk_ir::TypeId;
fn to_chalk(self, _db: &impl HirDatabase) -> chalk_ir::TypeId {
chalk_ir::TypeId(id_to_chalk(self))
}
fn from_chalk(_db: &impl HirDatabase, type_alias_id: chalk_ir::TypeId) -> TypeAliasId {
id_from_chalk(type_alias_id.0)
}
}
impl ToChalk for AssocTyValue {
type Chalk = chalk_rust_ir::AssociatedTyValueId;