llvm/clang/lib/AST/ScanfFormatString.cpp

//= ScanfFormatString.cpp - Analysis of printf format strings --*- 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
//
//===----------------------------------------------------------------------===//
//
// Handling of format string in scanf and friends.  The structure of format
// strings for fscanf() are described in C99 7.19.6.2.
//
//===----------------------------------------------------------------------===//

#include "clang/AST/FormatString.h"
#include "FormatStringParsing.h"
#include "clang/Basic/TargetInfo.h"

ArgType;
FormatStringHandler;
LengthModifier;
OptionalAmount;
ConversionSpecifier;
ScanfConversionSpecifier;
ScanfSpecifier;
UpdateOnReturn;
usingnamespaceclang;

ScanfSpecifierResult;

static bool ParseScanList(FormatStringHandler &H,
                          ScanfConversionSpecifier &CS,
                          const char *&Beg, const char *E) { … }

// FIXME: Much of this is copy-paste from ParsePrintfSpecifier.
// We can possibly refactor.
static ScanfSpecifierResult ParseScanfSpecifier(FormatStringHandler &H,
                                                const char *&Beg,
                                                const char *E,
                                                unsigned &argIndex,
                                                const LangOptions &LO,
                                                const TargetInfo &Target) { … }

ArgType ScanfSpecifier::getArgType(ASTContext &Ctx) const { … }

bool ScanfSpecifier::fixType(QualType QT, QualType RawQT,
                             const LangOptions &LangOpt,
                             ASTContext &Ctx) { … }

void ScanfSpecifier::toString(raw_ostream &os) const { … }

bool clang::analyze_format_string::ParseScanfString(FormatStringHandler &H,
                                                    const char *I,
                                                    const char *E,
                                                    const LangOptions &LO,
                                                    const TargetInfo &Target) { … }