================
@@ -0,0 +1,119 @@
+//===--- ReplaceMemcpyWithStdCopy.cpp - clang-tidy----------------*-
C++-*-===//
+//
+// 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 "ReplaceMemcpyWithStdCopy.h"
+#include "../utils/OptionsUtils.h"
+#include <array>
+
+using namespace clang;
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+namespace modernize {
+
+ReplaceMemcpyWithStdCopy::ReplaceMemcpyWithStdCopy(StringRef Name,
+ ClangTidyContext *Context)
+ : ClangTidyCheck(Name, Context),
+ IncludeInserter(Options.getLocalOrGlobal("IncludeStyle",
+ utils::IncludeSorter::IS_LLVM))
{
+}
+
+void ReplaceMemcpyWithStdCopy::registerMatchers(MatchFinder *Finder) {
+ assert(Finder != nullptr);
+
+ if (!getLangOpts().CPlusPlus)
+ return;
+
+ auto MemcpyMatcher =
+ callExpr(hasDeclaration(functionDecl(hasName("memcpy"),
+ isExpansionInSystemHeader())),
+ isExpansionInMainFile())
+ .bind("memcpy_function");
+
+ Finder->addMatcher(MemcpyMatcher, this);
+}
+
+void ReplaceMemcpyWithStdCopy::registerPPCallbacks(
+ const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP)
{
+ if (!getLangOpts().CPlusPlus)
+ return;
+
+ Inserter =
+ std::make_unique<utils::IncludeInserter>(SM, getLangOpts(),
+ IncludeStyle);
+ PP->addPPCallbacks(Inserter->CreatePPCallbacks());
+}
+
+void ReplaceMemcpyWithStdCopy::check(const MatchFinder::MatchResult &Result) {
+ const auto *MemcpyNode = Result.Nodes.getNodeAs<CallExpr>("memcpy_function");
+ assert(MemcpyNode != nullptr);
+
+ DiagnosticBuilder Diag =
+ diag(MemcpyNode->getExprLoc(), "use std::copy instead of memcpy");
+
+ renameFunction(Diag, MemcpyNode);
+ reorderArgs(Diag, MemcpyNode);
+ insertHeader(Diag, MemcpyNode, Result.SourceManager);
+}
+
+void ReplaceMemcpyWithStdCopy::storeOptions(ClangTidyOptions::OptionMap &Opts)
{
+ Options.store(Opts, "IncludeStyle",
+ utils::IncludeSorter::toString(IncludeStyle));
+}
+
+void ReplaceMemcpyWithStdCopy::renameFunction(DiagnosticBuilder &Diag,
+ const CallExpr *MemcpyNode) {
+ const CharSourceRange FunctionNameSourceRange =
CharSourceRange::getCharRange(
+ MemcpyNode->getBeginLoc(), MemcpyNode->getArg(0)->getBeginLoc());
----------------
PiotrZSL wrote:
wrong, use MemcpyNode->getCallee()->getSourceRange(), and remove additional "("
https://github.com/llvm/llvm-project/pull/74663
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