use rustc_hir::intravisit::FnKind;
use rustc_hir::{Body, FnDecl, HirId};
use rustc_infer::infer::TyCtxtInferExt;
use rustc_lint::{LateContext, LateLintPass};
use rustc_hir::intravisit::FnKind;
use rustc_hir::{Body, FnDecl, HirId};
use rustc_infer::infer::TyCtxtInferExt;
use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::{Opaque, PredicateKind::Trait, ToPolyTraitRef};
+use rustc_middle::ty::subst::Subst;
+use rustc_middle::ty::{Opaque, PredicateKind::Trait};
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::{sym, Span};
use rustc_trait_selection::traits::error_reporting::suggestions::InferCtxtExt;
use rustc_trait_selection::traits::{self, FulfillmentError, TraitEngine};
declare_clippy_lint! {
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::{sym, Span};
use rustc_trait_selection::traits::error_reporting::suggestions::InferCtxtExt;
use rustc_trait_selection::traits::{self, FulfillmentError, TraitEngine};
declare_clippy_lint! {
/// functions and methods to implement the `Send` marker trait. It is mostly
/// used by library authors (public and internal) that target an audience where
/// multithreaded executors are likely to be used for running these Futures.
///
/// functions and methods to implement the `Send` marker trait. It is mostly
/// used by library authors (public and internal) that target an audience where
/// multithreaded executors are likely to be used for running these Futures.
///
/// needs to eventually produce its final value. When targeting a multithreaded
/// executor (which is the norm on non-embedded devices) this means that this
/// state may need to be transported to other threads, in other words the
/// needs to eventually produce its final value. When targeting a multithreaded
/// executor (which is the norm on non-embedded devices) this means that this
/// state may need to be transported to other threads, in other words the
- let ret_ty = utils::return_ty(cx, hir_id);
- if let Opaque(id, subst) = ret_ty.kind {
- let preds = cx.tcx.predicates_of(id).instantiate(cx.tcx, subst);
+ let ret_ty = return_ty(cx, hir_id);
+ if let Opaque(id, subst) = *ret_ty.kind() {
+ let preds = cx.tcx.explicit_item_bounds(id);
cx.tcx.infer_ctxt().enter(|infcx| {
for FulfillmentError { obligation, .. } in send_errors {
infcx.maybe_note_obligation_cause_for_async_await(db, &obligation);
cx.tcx.infer_ctxt().enter(|infcx| {
for FulfillmentError { obligation, .. } in send_errors {
infcx.maybe_note_obligation_cause_for_async_await(db, &obligation);