[clang-tools-extra] [clang-tidy] Add `modernize-use-uniform-initializer` check (PR #91124)
Piotr Zegar via cfe-commits
cfe-commits at lists.llvm.org
Sun May 5 09:14:29 PDT 2024
================
@@ -0,0 +1,320 @@
+//===--- UseUniformInitializerCheck.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 "UseUniformInitializerCheck.h"
+#include "../utils/LexerUtils.h"
+#include "clang/Tooling/FixIt.h"
+
+AST_MATCHER(clang::VarDecl, isVarOldStyleInitializer) {
+ // If it doesn't have any initializer the initializer style is not defined.
+ if (!Node.hasInit())
+ return false;
+
+ const clang::VarDecl::InitializationStyle InitStyle = Node.getInitStyle();
+
+ return InitStyle == clang::VarDecl::InitializationStyle::CInit ||
+ InitStyle == clang::VarDecl::InitializationStyle::CallInit;
+}
+
+AST_MATCHER(clang::FieldDecl, isFieldOldStyleInitializer) {
+ // If it doesn't have any initializer the initializer style is not defined.
+ if (!Node.hasInClassInitializer() || Node.getInClassInitializer() == nullptr)
+ return false;
+
+ const clang::InClassInitStyle InitStyle = Node.getInClassInitStyle();
+
+ return InitStyle == clang::InClassInitStyle::ICIS_CopyInit;
+}
+
+AST_MATCHER(clang::CXXCtorInitializer, isCStyleInitializer) {
+ const clang::Expr *Init = Node.getInit();
+ if (Init == nullptr)
+ return false;
+
+ return !llvm::isa<clang::InitListExpr>(Init);
+}
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::modernize {
+
+namespace {
+
+constexpr const StringRef VarDeclID = "VarDecl";
+constexpr const StringRef FieldDeclId = "FieldDecl";
+constexpr const StringRef CtorInitID = "CtorInit";
+
+constexpr const StringRef CStyleWarningMessage =
+ "Use uniform initializer instead of C-style initializer";
+
+constexpr StringRef
+getInitializerStyleName(VarDecl::InitializationStyle InitStyle) {
+ switch (InitStyle) {
+ case VarDecl::InitializationStyle::CInit:
+ return "C";
+
+ case VarDecl::InitializationStyle::CallInit:
+ return "call";
+
+ default:
+ llvm_unreachable("Invalid initializer style!");
+ }
+}
+
+SourceRange getParenLocationsForCallInit(const Expr *InitExpr,
+ const SourceManager &SM,
+ const LangOptions &LangOpts) {
+ // We need to handle 'CXXConstructExpr' differently
+ if (isa<CXXConstructExpr>(InitExpr))
+ return cast<CXXConstructExpr>(InitExpr)->getParenOrBraceRange();
----------------
PiotrZSL wrote:
use dyn_cast
https://github.com/llvm/llvm-project/pull/91124
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