49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
//===--- NoexceptFunctionCheck.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 "NoexceptFunctionBaseCheck.h"
|
|
#include "../utils/LexerUtils.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/Decl.h"
|
|
#include "clang/ASTMatchers/ASTMatchFinder.h"
|
|
|
|
using namespace clang::ast_matchers;
|
|
|
|
namespace clang::tidy::performance {
|
|
|
|
void NoexceptFunctionBaseCheck::check(const MatchFinder::MatchResult &Result) {
|
|
const auto *FuncDecl = Result.Nodes.getNodeAs<FunctionDecl>(BindFuncDeclName);
|
|
assert(FuncDecl);
|
|
|
|
if (SpecAnalyzer.analyze(FuncDecl) !=
|
|
utils::ExceptionSpecAnalyzer::State::Throwing)
|
|
return;
|
|
|
|
// Don't complain about nothrow(false), but complain on nothrow(expr)
|
|
// where expr evaluates to false.
|
|
const auto *ProtoType = FuncDecl->getType()->castAs<FunctionProtoType>();
|
|
const Expr *NoexceptExpr = ProtoType->getNoexceptExpr();
|
|
if (NoexceptExpr) {
|
|
NoexceptExpr = NoexceptExpr->IgnoreImplicit();
|
|
if (!isa<CXXBoolLiteralExpr>(NoexceptExpr))
|
|
reportNoexceptEvaluatedToFalse(FuncDecl, NoexceptExpr);
|
|
return;
|
|
}
|
|
|
|
auto Diag = reportMissingNoexcept(FuncDecl);
|
|
|
|
// Add FixIt hints.
|
|
const SourceManager &SM = *Result.SourceManager;
|
|
|
|
const SourceLocation NoexceptLoc =
|
|
utils::lexer::getLocationForNoexceptSpecifier(FuncDecl, SM);
|
|
if (NoexceptLoc.isValid())
|
|
Diag << FixItHint::CreateInsertion(NoexceptLoc, " noexcept ");
|
|
}
|
|
|
|
} // namespace clang::tidy::performance
|