Minimize API

crates/ra_hir/src/code_model.rs

@@ -29,10 +29,7 @@ use ra_syntax::{ast, AstNode, SyntaxNode};
 use crate::{
     db::{DefDatabase, HirDatabase},
     ty::display::HirFormatter,
-    ty::{
-        self, InEnvironment, InferenceResult, TraitEnvironment, TraitRef, Ty, TyDefId, TypeCtor,
-        TypeWalk,
-    },
+    ty::{self, InEnvironment, InferenceResult, TraitEnvironment, Ty, TyDefId, TypeCtor, TypeWalk},
     CallableDef, Either, HirDisplay, Name, Source,
 };
 
@@ -731,10 +728,6 @@ impl Trait {
         db.trait_data(self.id).items.iter().map(|(_name, it)| (*it).into()).collect()
     }
 
-    pub fn trait_ref(self, db: &impl HirDatabase) -> TraitRef {
-        TraitRef::for_trait(db, self.id)
-    }
-
     pub fn is_auto(self, db: &impl DefDatabase) -> bool {
         db.trait_data(self.id).auto
     }

crates/ra_hir_ty/src/lower.rs

@@ -363,7 +363,7 @@ pub(super) fn substs_from_path_segment(
 }
 
 impl TraitRef {
-    pub(crate) fn from_path(
+    fn from_path(
         db: &impl HirDatabase,
         resolver: &Resolver,
         path: &Path,
@@ -377,7 +377,7 @@ impl TraitRef {
         Some(TraitRef::from_resolved_path(db, resolver, resolved.into(), segment, explicit_self_ty))
     }
 
-    pub(super) fn from_resolved_path(
+    pub(crate) fn from_resolved_path(
         db: &impl HirDatabase,
         resolver: &Resolver,
         resolved: TraitId,
@@ -391,7 +391,7 @@ impl TraitRef {
         TraitRef { trait_: resolved, substs }
     }
 
-    pub(crate) fn from_hir(
+    fn from_hir(
         db: &impl HirDatabase,
         resolver: &Resolver,
         type_ref: &TypeRef,
@@ -415,11 +415,6 @@ impl TraitRef {
         substs_from_path_segment(db, resolver, segment, Some(resolved.into()), !has_self_param)
     }
 
-    pub fn for_trait(db: &impl HirDatabase, trait_: TraitId) -> TraitRef {
-        let substs = Substs::identity(&db.generic_params(trait_.into()));
-        TraitRef { trait_, substs }
-    }
-
     pub(crate) fn from_type_bound(
         db: &impl HirDatabase,
         resolver: &Resolver,