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Remove GenericParams::new

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This commit is contained in:
Giacomo Stevanato 2021-09-25 18:57:57 +02:00
parent 6e4bf22724
commit fe2b1615de
1 changed files with 1 additions and 80 deletions
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81
crates/hir_def/src/generics.rs
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@ -6,7 +6,7 @@
use base_db::FileId;
use either::Either;
use hir_expand::{
name::{name, AsName, Name},
name::{AsName, Name},
HirFileId, InFile,
};
use la_arena::{Arena, ArenaMap};
@ -153,85 +153,6 @@ impl GenericParams {
}
}
fn new(db: &dyn DefDatabase, def: GenericDefId) -> (GenericParams, InFile<SourceMap>) {
let mut generics = GenericParams::default();
let mut sm = SourceMap::default();
// FIXME: add `: Sized` bound for everything except for `Self` in traits
let file_id = match def {
GenericDefId::FunctionId(it) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
generics.fill(&lower_ctx, &mut sm, &src.value);
// lower `impl Trait` in arguments
let data = db.function_data(it);
for param in &data.params {
generics.fill_implicit_impl_trait_args(param);
}
src.file_id
}
GenericDefId::AdtId(AdtId::StructId(it)) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
generics.fill(&lower_ctx, &mut sm, &src.value);
src.file_id
}
GenericDefId::AdtId(AdtId::UnionId(it)) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
generics.fill(&lower_ctx, &mut sm, &src.value);
src.file_id
}
GenericDefId::AdtId(AdtId::EnumId(it)) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
generics.fill(&lower_ctx, &mut sm, &src.value);
src.file_id
}
GenericDefId::TraitId(it) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
// traits get the Self type as an implicit first type parameter
let self_param_id = generics.types.alloc(TypeParamData {
name: Some(name![Self]),
default: None,
provenance: TypeParamProvenance::TraitSelf,
});
sm.type_params.insert(self_param_id, Either::Right(src.value.clone()));
// add super traits as bounds on Self
// i.e., trait Foo: Bar is equivalent to trait Foo where Self: Bar
let self_param = TypeRef::Path(name![Self].into());
generics.fill_bounds(&lower_ctx, &src.value, Either::Left(self_param));
generics.fill(&lower_ctx, &mut sm, &src.value);
src.file_id
}
GenericDefId::TypeAliasId(it) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
generics.fill(&lower_ctx, &mut sm, &src.value);
src.file_id
}
// Note that we don't add `Self` here: in `impl`s, `Self` is not a
// type-parameter, but rather is a type-alias for impl's target
// type, so this is handled by the resolver.
GenericDefId::ImplId(it) => {
let src = it.lookup(db).source(db);
let lower_ctx = LowerCtx::new(db, src.file_id);
generics.fill(&lower_ctx, &mut sm, &src.value);
src.file_id
}
// We won't be using this ID anyway
GenericDefId::EnumVariantId(_) | GenericDefId::ConstId(_) => FileId(!0).into(),
};
generics.shrink_to_fit();
(generics, InFile::new(file_id, sm))
}
pub(crate) fn fill(
&mut self,
lower_ctx: &LowerCtx,