Fix invalid jump to def link generated on derive attributes

Author: GuillaumeGomez

src/librustdoc/html/render/span_map.rs

@@ -7,7 +7,6 @@ use rustc_hir::intravisit::{self, Visitor, VisitorExt};
 use rustc_hir::{ExprKind, HirId, Item, ItemKind, Mod, Node, QPath};
 use rustc_middle::hir::nested_filter;
 use rustc_middle::ty::TyCtxt;
-use rustc_span::hygiene::MacroKind;
 use rustc_span::{BytePos, ExpnKind};
 
 use crate::clean::{self, PrimitiveType, rustc_span};
@@ -194,7 +193,7 @@ impl SpanMapVisitor<'_> {
         }
 
         let macro_name = match data.kind {
-            ExpnKind::Macro(MacroKind::Bang, macro_name) => macro_name,
+            ExpnKind::Macro(_, macro_name) => macro_name,
             // Even though we don't handle this kind of macro, this `data` still comes from
             // expansion so we return `true` so we don't go any deeper in this code.
             _ => return true,

tests/rustdoc/jump-to-def-assoc-items.rs

@@ -26,6 +26,9 @@ impl C {
     pub fn wat() {}
 }
 
+//@ has - '//a[@href="{{channel}}/core/fmt/macros/macro.Debug.html"]' 'Debug'
+//@ has - '//a[@href="{{channel}}/core/cmp/macro.PartialEq.html"]' 'PartialEq'
+#[derive(Debug, PartialEq)]
 pub struct Bar;
 impl Trait for Bar {
     type T = Foo;