Replace some std::iter::repeat with str::repeat

[rust.git] / clippy_lints / src / missing_doc.rs

diff --git a/clippy_lints/src/missing_doc.rs b/clippy_lints/src/missing_doc.rs
index 5fce322933e98813ffdabe503a45b1e1c7d4e911..dfab3e8a93112b447bed16a486dce483a2031333 100644 (file)
--- a/clippy_lints/src/missing_doc.rs
+++ b/clippy_lints/src/missing_doc.rs
@@ -5,10 +5,10 @@
 // [`missing_doc`]: https://github.com/rust-lang/rust/blob/cf9cf7c923eb01146971429044f216a3ca905e06/compiler/rustc_lint/src/builtin.rs#L415
 //
 
-use crate::utils::span_lint;
+use clippy_utils::attrs::is_doc_hidden;
+use clippy_utils::diagnostics::span_lint;
 use if_chain::if_chain;
 use rustc_ast::ast::{self, MetaItem, MetaItemKind};
-use rustc_ast::attr;
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::ty;
@@ -93,9 +93,9 @@ fn check_missing_docs_attrs(
             return;
         }
 
-        let has_doc = attrs
-            .iter()
-            .any(|a| a.is_doc_comment() || a.doc_str().is_some() || a.is_value_str() || Self::has_include(a.meta()));
+        let has_doc = attrs.iter().any(|a| {
+            a.is_doc_comment() || a.doc_str().is_some() || a.value_str().is_some() || Self::has_include(a.meta())
+        });
         if !has_doc {
             span_lint(
                 cx,
@@ -111,14 +111,7 @@ fn check_missing_docs_attrs(
 
 impl<'tcx> LateLintPass<'tcx> for MissingDoc {
     fn enter_lint_attrs(&mut self, _: &LateContext<'tcx>, attrs: &'tcx [ast::Attribute]) {
-        let doc_hidden = self.doc_hidden()
-            || attrs.iter().any(|attr| {
-                attr.has_name(sym::doc)
-                    && match attr.meta_item_list() {
-                        None => false,
-                        Some(l) => attr::list_contains_name(&l[..], sym::hidden),
-                    }
-            });
+        let doc_hidden = self.doc_hidden() || is_doc_hidden(attrs);
         self.doc_hidden_stack.push(doc_hidden);
     }
 
@@ -127,7 +120,8 @@ fn exit_lint_attrs(&mut self, _: &LateContext<'tcx>, _: &'tcx [ast::Attribute])
     }
 
     fn check_crate(&mut self, cx: &LateContext<'tcx>, krate: &'tcx hir::Crate<'_>) {
-        self.check_missing_docs_attrs(cx, &krate.item.attrs, krate.item.span, "the", "crate");
+        let attrs = cx.tcx.hir().attrs(hir::CRATE_HIR_ID);
+        self.check_missing_docs_attrs(cx, attrs, krate.item.inner, "the", "crate");
     }
 
     fn check_item(&mut self, cx: &LateContext<'tcx>, it: &'tcx hir::Item<'_>) {
@@ -160,19 +154,20 @@ fn check_item(&mut self, cx: &LateContext<'tcx>, it: &'tcx hir::Item<'_>) {
 
         let (article, desc) = cx.tcx.article_and_description(it.def_id.to_def_id());
 
-        self.check_missing_docs_attrs(cx, &it.attrs, it.span, article, desc);
+        let attrs = cx.tcx.hir().attrs(it.hir_id());
+        self.check_missing_docs_attrs(cx, attrs, it.span, article, desc);
     }
 
     fn check_trait_item(&mut self, cx: &LateContext<'tcx>, trait_item: &'tcx hir::TraitItem<'_>) {
         let (article, desc) = cx.tcx.article_and_description(trait_item.def_id.to_def_id());
 
-        self.check_missing_docs_attrs(cx, &trait_item.attrs, trait_item.span, article, desc);
+        let attrs = cx.tcx.hir().attrs(trait_item.hir_id());
+        self.check_missing_docs_attrs(cx, attrs, trait_item.span, article, desc);
     }
 
     fn check_impl_item(&mut self, cx: &LateContext<'tcx>, impl_item: &'tcx hir::ImplItem<'_>) {
         // If the method is an impl for a trait, don't doc.
-        let def_id = cx.tcx.hir().local_def_id(impl_item.hir_id);
-        match cx.tcx.associated_item(def_id).container {
+        match cx.tcx.associated_item(impl_item.def_id).container {
             ty::TraitContainer(_) => return,
             ty::ImplContainer(cid) => {
                 if cx.tcx.impl_trait_ref(cid).is_some() {
@@ -181,17 +176,20 @@ fn check_impl_item(&mut self, cx: &LateContext<'tcx>, impl_item: &'tcx hir::Impl
             },
         }
 
-        let (article, desc) = cx.tcx.article_and_description(def_id.to_def_id());
-        self.check_missing_docs_attrs(cx, &impl_item.attrs, impl_item.span, article, desc);
+        let (article, desc) = cx.tcx.article_and_description(impl_item.def_id.to_def_id());
+        let attrs = cx.tcx.hir().attrs(impl_item.hir_id());
+        self.check_missing_docs_attrs(cx, attrs, impl_item.span, article, desc);
     }
 
-    fn check_struct_field(&mut self, cx: &LateContext<'tcx>, sf: &'tcx hir::StructField<'_>) {
+    fn check_field_def(&mut self, cx: &LateContext<'tcx>, sf: &'tcx hir::FieldDef<'_>) {
         if !sf.is_positional() {
-            self.check_missing_docs_attrs(cx, &sf.attrs, sf.span, "a", "struct field");
+            let attrs = cx.tcx.hir().attrs(sf.hir_id);
+            self.check_missing_docs_attrs(cx, attrs, sf.span, "a", "struct field");
         }
     }
 
     fn check_variant(&mut self, cx: &LateContext<'tcx>, v: &'tcx hir::Variant<'_>) {
-        self.check_missing_docs_attrs(cx, &v.attrs, v.span, "a", "variant");
+        let attrs = cx.tcx.hir().attrs(v.id);
+        self.check_missing_docs_attrs(cx, attrs, v.span, "a", "variant");
     }
 }