clang-tools 20.0.0git
NoexceptMoveConstructorCheck.cpp
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1//===--- NoexceptMoveConstructorCheck.cpp - clang-tidy---------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
10#include "clang/ASTMatchers/ASTMatchFinder.h"
11
12using namespace clang::ast_matchers;
13
14// FixItHint - comment added to fix list.rst generation in add_new_check.py.
15// Do not remove. Fixes are generated in base class.
16
18
20 Finder->addMatcher(
21 cxxMethodDecl(unless(isDeleted()),
22 anyOf(cxxConstructorDecl(isMoveConstructor()),
23 isMoveAssignmentOperator()))
24 .bind(BindFuncDeclName),
25 this);
26}
27
28DiagnosticBuilder NoexceptMoveConstructorCheck::reportMissingNoexcept(
29 const FunctionDecl *FuncDecl) {
30 return diag(FuncDecl->getLocation(),
31 "move %select{assignment operator|constructor}0s should "
32 "be marked noexcept")
33 << CXXConstructorDecl::classof(FuncDecl);
34}
35
36void NoexceptMoveConstructorCheck::reportNoexceptEvaluatedToFalse(
37 const FunctionDecl *FuncDecl, const Expr *NoexceptExpr) {
38 diag(NoexceptExpr->getExprLoc(),
39 "noexcept specifier on the move %select{assignment "
40 "operator|constructor}0 evaluates to 'false'")
41 << CXXConstructorDecl::classof(FuncDecl);
42}
43
44} // namespace clang::tidy::performance
DiagnosticBuilder diag(SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning)
Add a diagnostic with the check's name.
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
static constexpr const char FuncDecl[]