blob: 911cd1b533367a1ec14bb2a0e9b62aa0fd3ebc64 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
//===--- 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
|
