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// Copyright 2016-2024 Vector 35 Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <stdexcept>
#include <exception>
// XXX: Compiled directly into the core for performance reasons
// Will still work fine compiled independently, just at about a
// 50-100% performance penalty due to FFI overhead
#ifdef BINARYNINJACORE_LIBRARY
#include "qualifiedname.h"
#include "type.h"
#include "architecture.h"
#include "binaryview.h"
#include "demangle.h"
#define BN BinaryNinjaCore
#define _STD_STRING BinaryNinjaCore::string
#define _STD_VECTOR BinaryNinjaCore::vector
#else
#include "binaryninjaapi.h"
#define BN BinaryNinja
#define _STD_STRING std::string
#define _STD_VECTOR std::vector
#endif
class DemangleException: public std::exception
{
_STD_STRING m_message;
public:
DemangleException(_STD_STRING msg="Attempt to read beyond bounds or missing expected character"): m_message(msg){}
virtual const char* what() const noexcept { return m_message.c_str(); }
};
class DemangleGNU3
{
class Reader
{
public:
Reader(const _STD_STRING& data);
_STD_STRING PeekString(size_t count=1);
char Peek();
bool NextIsOneOf(const _STD_STRING& list);
_STD_STRING GetRaw();
char Read();
_STD_STRING ReadString(size_t count=1);
_STD_STRING ReadUntil(char sentinal);
void Consume(size_t count=1);
size_t Length() const;
void UnRead(size_t count=1);
private:
_STD_STRING m_data;
size_t m_offset;
};
class SubstitutionList
{
_STD_VECTOR<BN::TypeBuilder> m_typeList;
public:
SubstitutionList();
~SubstitutionList();
void PushType(BN::TypeBuilder t);
void PopType();
const BN::TypeBuilder& GetType(size_t reference) const;
void PrintSubstitutionTable() const;
size_t Size() const { return m_typeList.size(); }
void Clear() { m_typeList.clear(); }
};
BN::QualifiedName m_varName;
Reader m_reader;
BN::Architecture* m_arch;
_STD_VECTOR<BN::TypeBuilder> m_substitute;
_STD_VECTOR<BN::TypeBuilder> m_templateSubstitute;
_STD_VECTOR<_STD_VECTOR<BN::TypeBuilder>> m_functionSubstitute;
_STD_STRING m_lastName;
BNNameType m_nameType;
bool m_localType;
bool m_hasReturnType;
bool m_isParameter;
bool m_shouldDeleteReader;
bool m_topLevel;
bool m_isOperatorOverload;
enum SymbolType { Function, FunctionWithReturn, Data, VTable, Rtti, Name};
BN::QualifiedName DemangleBaseUnresolvedName();
BN::TypeBuilder DemangleUnresolvedType();
_STD_STRING DemangleUnarySuffixExpression(const _STD_STRING& op);
_STD_STRING DemangleUnaryPrefixExpression(const _STD_STRING& op);
_STD_STRING DemangleBinaryExpression(const _STD_STRING& op);
_STD_STRING DemangleUnaryPrefixType(const _STD_STRING& op);
_STD_STRING DemangleTypeString();
_STD_STRING DemangleExpressionList();
BN::TypeBuilder DemangleUnqualifiedName();
_STD_STRING DemangleSourceName();
_STD_STRING DemangleNumberAsString();
_STD_STRING DemangleInitializer();
_STD_STRING DemangleExpression();
_STD_STRING DemanglePrimaryExpression();
BN::TypeBuilder DemangleName();
BN::TypeBuilder DemangleLocalName();
void DemangleCVQualifiers(bool& cnst, bool& vltl, bool& rstrct);
BN::TypeBuilder DemangleSubstitution();
const BN::TypeBuilder& DemangleTemplateSubstitution();
void DemangleTemplateArgs(_STD_VECTOR<BN::FunctionParameter>& args);
bool DemangleEncoding(BN::Type** type, BN::QualifiedName& outName);
BN::TypeBuilder DemangleFunction(bool cnst, bool vltl);
BN::TypeBuilder DemangleType();
int64_t DemangleNumber();
BN::TypeBuilder DemangleNestedName();
void PushTemplateType(BN::TypeBuilder type);
const BN::TypeBuilder& GetTemplateType(size_t ref);
void PushType(BN::TypeBuilder type);
const BN::TypeBuilder& GetType(size_t ref);
static bool DemangleGlobalHeader(_STD_STRING& name, _STD_STRING& header);
public:
DemangleGNU3(BN::Architecture* arch, const _STD_STRING& mangledName);
BN::TypeBuilder DemangleSymbol(BN::QualifiedName& varName);
BN::QualifiedName GetVarName() const { return m_varName; }
static bool IsGNU3MangledString(const _STD_STRING& name);
// Tread lightly on this landmine; a BinaryView* will be converted to a bool; use an explicit (BN::Ref<BN::BinaryView>)view cast
static bool DemangleStringGNU3(BN::Architecture* arch, const _STD_STRING& name, BN::Ref<BN::Type>& outType, BN::QualifiedName& outVarName, const BN::Ref<BN::BinaryView>& view);
static bool DemangleStringGNU3(BN::Architecture* arch, const _STD_STRING& name, BN::Ref<BN::Type>& outType, BN::QualifiedName& outVarName, BN::BinaryView* view);
static bool DemangleStringGNU3(BN::Architecture* arch, const _STD_STRING& name, BN::Ref<BN::Type>& outType, BN::QualifiedName& outVarName);
void PrintTables();
};
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