use clippy_utils::diagnostics::{multispan_sugg, span_lint_and_then};
use clippy_utils::ptr::get_spans;
use clippy_utils::source::{snippet, snippet_opt};
-use clippy_utils::ty::{implements_trait, is_copy, is_type_diagnostic_item};
+use clippy_utils::ty::{
+ implements_trait, implements_trait_with_env, is_copy, is_type_diagnostic_item, is_type_lang_item,
+};
use clippy_utils::{get_trait_def_id, is_self, paths};
use if_chain::if_chain;
use rustc_ast::ast::Attribute;
use rustc_hir::{
BindingAnnotation, Body, FnDecl, GenericArg, HirId, Impl, ItemKind, Mutability, Node, PatKind, QPath, TyKind,
};
-use rustc_hir::{HirIdMap, HirIdSet};
+use rustc_hir::{HirIdMap, HirIdSet, LangItem};
use rustc_hir_typeck::expr_use_visitor as euv;
use rustc_infer::infer::TyCtxtInferExt;
use rustc_lint::{LateContext, LateLintPass};
use rustc_span::{sym, Span};
use rustc_target::spec::abi::Abi;
use rustc_trait_selection::traits;
-use rustc_trait_selection::traits::misc::can_type_implement_copy;
+use rustc_trait_selection::traits::misc::type_allowed_to_implement_copy;
use std::borrow::Cow;
declare_clippy_lint! {
}
// Exclude non-inherent impls
- if let Some(Node::Item(item)) = cx.tcx.hir().find(cx.tcx.hir().get_parent_node(hir_id)) {
+ if let Some(Node::Item(item)) = cx.tcx.hir().find_parent(hir_id) {
if matches!(
item.kind,
ItemKind::Impl(Impl { of_trait: Some(_), .. }) | ItemKind::Trait(..)
.filter_map(|obligation| {
// Note that we do not want to deal with qualified predicates here.
match obligation.predicate.kind().no_bound_vars() {
- Some(ty::PredicateKind::Trait(pred)) if pred.def_id() != sized_trait => Some(pred),
+ Some(ty::PredicateKind::Clause(ty::Clause::Trait(pred))) if pred.def_id() != sized_trait => {
+ Some(pred)
+ },
_ => None,
}
})
if !ty.is_mutable_ptr();
if !is_copy(cx, ty);
if ty.is_sized(cx.tcx, cx.param_env);
- if !allowed_traits.iter().any(|&t| implements_trait(cx, ty, t, &[]));
+ if !allowed_traits.iter().any(|&t| implements_trait_with_env(cx.tcx, cx.param_env, ty, t, [None]));
if !implements_borrow_trait;
if !all_borrowable_trait;
let sugg = |diag: &mut Diagnostic| {
if let ty::Adt(def, ..) = ty.kind() {
if let Some(span) = cx.tcx.hir().span_if_local(def.did()) {
- if can_type_implement_copy(
+ if type_allowed_to_implement_copy(
cx.tcx,
cx.param_env,
ty,
}
}
- if is_type_diagnostic_item(cx, ty, sym::String) {
+ if is_type_lang_item(cx, ty, LangItem::String) {
if let Some(clone_spans) =
get_spans(cx, Some(body.id()), idx, &[("clone", ".to_string()"), ("as_str", "")]) {
diag.span_suggestion(
fn mutate(&mut self, _: &euv::PlaceWithHirId<'tcx>, _: HirId) {}
- fn fake_read(
- &mut self,
- _: &rustc_hir_typeck::expr_use_visitor::PlaceWithHirId<'tcx>,
- _: FakeReadCause,
- _: HirId,
- ) {
- }
+ fn fake_read(&mut self, _: &rustc_hir_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
}