Port `#[automatically_derived]` to the new attribute parsing infrastructure

Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
index 6d617d43c2a..91fcbb9390f 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
@@ -2,6 +2,7 @@ use core::ops::ControlFlow;
 
 use rustc_abi::{FieldIdx, VariantIdx};
 use rustc_apfloat::Float;
+use rustc_attr_data_structures::{AttributeKind, find_attr};
 use rustc_data_structures::fx::FxHashSet;
 use rustc_errors::Diag;
 use rustc_hir as hir;
@@ -15,7 +16,7 @@ use rustc_middle::ty::{
 };
 use rustc_middle::{mir, span_bug};
 use rustc_span::def_id::DefId;
-use rustc_span::{DUMMY_SP, Span, sym};
+use rustc_span::{DUMMY_SP, Span};
 use rustc_trait_selection::traits::ObligationCause;
 use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt;
 use tracing::{debug, instrument, trace};
@@ -495,7 +496,8 @@ fn type_has_partial_eq_impl<'tcx>(
     let mut structural_peq = false;
     let mut impl_def_id = None;
     for def_id in tcx.non_blanket_impls_for_ty(partial_eq_trait_id, ty) {
-        automatically_derived = tcx.has_attr(def_id, sym::automatically_derived);
+        automatically_derived =
+            find_attr!(tcx.get_all_attrs(def_id), AttributeKind::AutomaticallyDerived(..));
         impl_def_id = Some(def_id);
     }
     for _ in tcx.non_blanket_impls_for_ty(structural_partial_eq_trait_id, ty) {