[clang-tools-extra] [clang-tidy] New bugprone-derived-method-shadowing-base-method (PR #154746)

[Julian Schmidt via cfe-commits]

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@@ -0,0 +1,132 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "DerivedMethodShadowingBaseMethodCheck.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include <stack>
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::bugprone {
+
+namespace {
+
+bool sameBasicType(const ParmVarDecl *Lhs, const ParmVarDecl *Rhs) {
+  if (Lhs && Rhs) {
+    return Lhs->getType()
+               .getCanonicalType()
+               .getNonReferenceType()
+               .getUnqualifiedType() == Rhs->getType()
+                                            .getCanonicalType()
+                                            .getNonReferenceType()
+                                            .getUnqualifiedType();
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5chmidti wrote:

Interesting that the clang-format CI check is not complaining about this one.

Nit: you can fold the nullptr check into the return: `return Lhs && Rhs && ...;`

https://github.com/llvm/llvm-project/pull/154746