Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir/src/source_analyzer.rs')
| -rw-r--r-- | crates/hir/src/source_analyzer.rs | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/crates/hir/src/source_analyzer.rs b/crates/hir/src/source_analyzer.rs index 6b78d7a363..b699ccde41 100644 --- a/crates/hir/src/source_analyzer.rs +++ b/crates/hir/src/source_analyzer.rs @@ -322,68 +322,6 @@ impl SourceAnalyzer { } } - // If the method is into(), try_into(), parse(), resolve it to from, try_from, from_str. - pub(crate) fn resolve_known_blanket_dual_impls( - &self, - db: &dyn HirDatabase, - call: &ast::MethodCallExpr, - ) -> Option<Function> { - // e.g. if the method call is let b = a.into(), - // - receiver_type is A (type of a) - // - return_type is B (type of b) - // We will find the definition of B::from(a: A). - let callable = self.resolve_method_call_as_callable(db, call)?; - let (_, receiver_type) = callable.receiver_param(db)?; - let return_type = callable.return_type(); - let (search_method, substs) = match call.name_ref()?.text().as_str() { - "into" => { - let trait_ = - self.resolver.resolve_known_trait(db.upcast(), &path![core::convert::From])?; - ( - self.trait_fn(db, trait_, "from")?, - hir_ty::TyBuilder::subst_for_def(db, trait_, None) - .push(return_type.ty) - .push(receiver_type.ty) - .build(), - ) - } - "try_into" => { - let trait_ = self - .resolver - .resolve_known_trait(db.upcast(), &path![core::convert::TryFrom])?; - ( - self.trait_fn(db, trait_, "try_from")?, - hir_ty::TyBuilder::subst_for_def(db, trait_, None) - // If the method is try_into() or parse(), return_type is Result<T, Error>. - // Get T from type arguments of Result<T, Error>. - .push(return_type.type_arguments().next()?.ty) - .push(receiver_type.ty) - .build(), - ) - } - "parse" => { - let trait_ = - self.resolver.resolve_known_trait(db.upcast(), &path![core::str::FromStr])?; - ( - self.trait_fn(db, trait_, "from_str")?, - hir_ty::TyBuilder::subst_for_def(db, trait_, None) - .push(return_type.type_arguments().next()?.ty) - .build(), - ) - } - _ => return None, - }; - - let found_method = self.resolve_impl_method_or_trait_def(db, search_method, substs); - // If found_method == search_method, the method in trait itself is resolved. - // It means the blanket dual impl is not found. - if found_method == search_method { - None - } else { - Some(found_method.into()) - } - } - pub(crate) fn resolve_expr_as_callable( &self, db: &dyn HirDatabase, @@ -1309,18 +1247,6 @@ impl SourceAnalyzer { Some((trait_id, fn_id)) } - fn trait_fn( - &self, - db: &dyn HirDatabase, - trait_id: TraitId, - method_name: &str, - ) -> Option<FunctionId> { - db.trait_data(trait_id).items.iter().find_map(|(item_name, item)| match item { - AssocItemId::FunctionId(t) if item_name.as_str() == method_name => Some(*t), - _ => None, - }) - } - fn ty_of_expr(&self, db: &dyn HirDatabase, expr: &ast::Expr) -> Option<&Ty> { self.infer.as_ref()?.type_of_expr_or_pat(self.expr_id(db, expr)?) } |