Auto merge of #9148 - arieluy:then_some_unwrap_or, r=Jarcho

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

diff --git a/clippy_lints/src/inherent_impl.rs b/clippy_lints/src/inherent_impl.rs
index ee41c4aea2f7ec12366e016fc574f228c9f12b71..c5abcc462545c935fb8a6b37e678685ce7bf639b 100644 (file)
--- a/clippy_lints/src/inherent_impl.rs
+++ b/clippy_lints/src/inherent_impl.rs
@@ -1,22 +1,22 @@
 //! lint on inherent implementations
 
 use clippy_utils::diagnostics::span_lint_and_note;
-use clippy_utils::{in_macro, is_allowed};
+use clippy_utils::is_lint_allowed;
 use rustc_data_structures::fx::FxHashMap;
-use rustc_hir::{def_id::LocalDefId, Crate, Item, ItemKind, Node};
+use rustc_hir::{def_id::LocalDefId, Item, ItemKind, Node};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::Span;
 use std::collections::hash_map::Entry;
 
 declare_clippy_lint! {
-    /// **What it does:** Checks for multiple inherent implementations of a struct
+    /// ### What it does
+    /// Checks for multiple inherent implementations of a struct
     ///
-    /// **Why is this bad?** Splitting the implementation of a type makes the code harder to navigate.
+    /// ### Why is this bad?
+    /// Splitting the implementation of a type makes the code harder to navigate.
     ///
-    /// **Known problems:** None.
-    ///
-    /// **Example:**
+    /// ### Example
     /// ```rust
     /// struct X;
     /// impl X {
@@ -36,6 +36,7 @@
     ///     fn other() {}
     /// }
     /// ```
+    #[clippy::version = "pre 1.29.0"]
     pub MULTIPLE_INHERENT_IMPL,
     restriction,
     "Multiple inherent impl that could be grouped"
@@ -44,7 +45,7 @@
 declare_lint_pass!(MultipleInherentImpl => [MULTIPLE_INHERENT_IMPL]);
 
 impl<'tcx> LateLintPass<'tcx> for MultipleInherentImpl {
-    fn check_crate_post(&mut self, cx: &LateContext<'tcx>, _: &'tcx Crate<'_>) {
+    fn check_crate_post(&mut self, cx: &LateContext<'tcx>) {
         // Map from a type to it's first impl block. Needed to distinguish generic arguments.
         // e.g. `Foo<Bar>` and `Foo<Baz>`
         let mut type_map = FxHashMap::default();
@@ -59,7 +60,7 @@ fn check_crate_post(&mut self, cx: &LateContext<'tcx>, _: &'tcx Crate<'_>) {
             .filter(|(&id, impls)| {
                 impls.len() > 1
                     // Check for `#[allow]` on the type definition
-                    && !is_allowed(
+                    && !is_lint_allowed(
                         cx,
                         MULTIPLE_INHERENT_IMPL,
                         cx.tcx.hir().local_def_id_to_hir_id(id),
@@ -118,13 +119,15 @@ fn check_crate_post(&mut self, cx: &LateContext<'tcx>, _: &'tcx Crate<'_>) {
 fn get_impl_span(cx: &LateContext<'_>, id: LocalDefId) -> Option<Span> {
     let id = cx.tcx.hir().local_def_id_to_hir_id(id);
     if let Node::Item(&Item {
-        kind: ItemKind::Impl(ref impl_item),
+        kind: ItemKind::Impl(impl_item),
         span,
         ..
     }) = cx.tcx.hir().get(id)
     {
-        (!in_macro(span) && impl_item.generics.params.is_empty() && !is_allowed(cx, MULTIPLE_INHERENT_IMPL, id))
-            .then(|| span)
+        (!span.from_expansion()
+            && impl_item.generics.params.is_empty()
+            && !is_lint_allowed(cx, MULTIPLE_INHERENT_IMPL, id))
+        .then_some(span)
     } else {
         None
     }