[clang] [clang-tools-extra] [clang-tidy] Added new check to detect redundant inline keyword (PR #73069)

[Piotr Zegar via cfe-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/73069 at github.com>


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@@ -0,0 +1,113 @@
+//===--- RedundantInlineSpecifierCheck.cpp - clang-tidy--------------------===//
+//
+// 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 "RedundantInlineSpecifierCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/ExprCXX.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Lex/Token.h"
+
+#include "../utils/LexerUtils.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::readability {
+
+AST_POLYMORPHIC_MATCHER(isInlineSpecified,
+                        AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl,
+                                                        VarDecl)) {
+  if (const auto *FD = dyn_cast<FunctionDecl>(&Node))
+    return FD->isInlineSpecified();
+  if (const auto *VD = dyn_cast<VarDecl>(&Node))
+    return VD->isInlineSpecified();
+  llvm_unreachable("Not a valid polymorphic type");
+}
+
+static std::optional<SourceLocation>
----------------
PiotrZSL wrote:

You don't need std::optional for SourceLocation, SourceLocation got method isValid/isInvalid use them for checking.

https://github.com/llvm/llvm-project/pull/73069