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Diffstat (limited to '')
| -rw-r--r-- | codemaker/source/javamaker/classfile.hxx | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/codemaker/source/javamaker/classfile.hxx b/codemaker/source/javamaker/classfile.hxx new file mode 100644 index 000000000..ebfef0782 --- /dev/null +++ b/codemaker/source/javamaker/classfile.hxx @@ -0,0 +1,239 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you 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 . + */ + +#pragma once + +#include <codemaker/unotype.hxx> +#include <sal/types.h> + +#include <map> +#include <memory> +#include <utility> +#include <vector> + +class FileStream; + +namespace codemaker::javamaker { + +class ClassFile { +public: + enum AccessFlags { + ACC_PUBLIC = 0x0001, + ACC_PRIVATE = 0x0002, + ACC_STATIC = 0x0008, + ACC_FINAL = 0x0010, + ACC_SUPER = 0x0020, + ACC_VARARGS = 0x0080, + ACC_INTERFACE = 0x0200, + ACC_ABSTRACT = 0x0400, + ACC_SYNTHETIC = 0x1000 + }; + + class Code { + public: + typedef std::vector< unsigned char >::size_type Branch; + typedef std::vector< unsigned char >::size_type Position; + + ~Code(); + + void instrAastore(); + void instrAconstNull(); + void instrAnewarray(rtl::OString const & type); + void instrAreturn(); + void instrAthrow(); + void instrCheckcast(rtl::OString const & type); + void instrDup(); + + void instrGetstatic( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + Branch instrIfAcmpne(); + Branch instrIfeq(); + Branch instrIfnull(); + + void instrInstanceof(rtl::OString const & type); + + void instrInvokeinterface( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor, sal_uInt8 args); + + void instrInvokespecial( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + void instrInvokestatic( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + void instrInvokevirtual( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + void instrLookupswitch( + Code const * defaultBlock, + std::vector< std::pair< sal_Int32, Code * > > const & blocks); + + void instrNew(rtl::OString const & type); + void instrNewarray(codemaker::UnoType::Sort sort); + void instrPop(); + + void instrPutfield( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + void instrPutstatic( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + void instrReturn(); + void instrSwap(); + + void instrTableswitch( + Code const * defaultBlock, sal_Int32 low, + std::vector< std::unique_ptr<Code> > const & blocks); + + void loadIntegerConstant(sal_Int32 value); + void loadStringConstant(rtl::OString const & value); + void loadLocalInteger(sal_uInt16 index); + void loadLocalLong(sal_uInt16 index); + void loadLocalFloat(sal_uInt16 index); + void loadLocalDouble(sal_uInt16 index); + void loadLocalReference(sal_uInt16 index); + void storeLocalReference(sal_uInt16 index); + void branchHere(Branch branch); + + void addException( + Position start, Position end, Position handler, + rtl::OString const & type); + + void setMaxStackAndLocals(sal_uInt16 maxStack, sal_uInt16 maxLocals) + { m_maxStack = maxStack; m_maxLocals = maxLocals; } + + Position getPosition() const; + + private: + Code(Code const &) = delete; + Code& operator =(const Code&) = delete; + + explicit Code(ClassFile & classFile); + + void ldc(sal_uInt16 index); + + void accessLocal( + sal_uInt16 index, sal_uInt8 fastOp, sal_uInt8 normalOp); + + ClassFile & m_classFile; + sal_uInt16 m_maxStack; + sal_uInt16 m_maxLocals; + std::vector< unsigned char > m_code; + sal_uInt16 m_exceptionTableLength; + std::vector< unsigned char > m_exceptionTable; + + friend class ClassFile; + }; + + ClassFile( + AccessFlags accessFlags, rtl::OString const & thisClass, + rtl::OString const & superClass, rtl::OString const & signature); + + ~ClassFile(); + + std::unique_ptr<Code> newCode(); + + sal_uInt16 addIntegerInfo(sal_Int32 value); + sal_uInt16 addFloatInfo(float value); + sal_uInt16 addLongInfo(sal_Int64 value); + sal_uInt16 addDoubleInfo(double value); + + void addInterface(rtl::OString const & interface); + + void addField( + AccessFlags accessFlags, rtl::OString const & name, + rtl::OString const & descriptor, sal_uInt16 constantValueIndex, + rtl::OString const & signature); + + void addMethod( + AccessFlags accessFlags, rtl::OString const & name, + rtl::OString const & descriptor, Code const * code, + std::vector< rtl::OString > const & exceptions, + rtl::OString const & signature); + + void write(FileStream & file) const; //TODO + +private: + typedef std::map< rtl::OString, sal_uInt16 > Map; + + ClassFile(ClassFile const &) = delete; + ClassFile& operator =(const ClassFile&) = delete; + + sal_uInt16 nextConstantPoolIndex(sal_uInt16 width); + sal_uInt16 addUtf8Info(rtl::OString const & value); + sal_uInt16 addClassInfo(rtl::OString const & type); + sal_uInt16 addStringInfo(rtl::OString const & value); + + sal_uInt16 addFieldrefInfo( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + sal_uInt16 addMethodrefInfo( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + sal_uInt16 addInterfaceMethodrefInfo( + rtl::OString const & type, rtl::OString const & name, + rtl::OString const & descriptor); + + sal_uInt16 addNameAndTypeInfo( + rtl::OString const & name, rtl::OString const & descriptor); + + void appendSignatureAttribute( + std::vector< unsigned char > & stream, rtl::OString const & signature); + + sal_uInt16 m_constantPoolCount; + std::vector< unsigned char > m_constantPool; + std::map< rtl::OString, sal_uInt16 > m_utf8Infos; + std::map< sal_Int32, sal_uInt16 > m_integerInfos; + std::map< sal_Int64, sal_uInt16 > m_longInfos; + std::map< float, sal_uInt16 > m_floatInfos; + std::map< double, sal_uInt16 > m_doubleInfos; + std::map< sal_uInt16, sal_uInt16 > m_classInfos; + std::map< sal_uInt16, sal_uInt16 > m_stringInfos; + std::map< sal_uInt32, sal_uInt16 > m_fieldrefInfos; + std::map< sal_uInt32, sal_uInt16 > m_methodrefInfos; + std::map< sal_uInt32, sal_uInt16 > m_interfaceMethodrefInfos; + std::map< sal_uInt32, sal_uInt16 > m_nameAndTypeInfos; + AccessFlags m_accessFlags; + sal_uInt16 m_thisClass; + sal_uInt16 m_superClass; + sal_uInt16 m_interfacesCount; + std::vector< unsigned char > m_interfaces; + sal_uInt16 m_fieldsCount; + std::vector< unsigned char > m_fields; + sal_uInt16 m_methodsCount; + std::vector< unsigned char > m_methods; + sal_uInt16 m_attributesCount; + std::vector< unsigned char > m_attributes; + + friend class Code; +}; + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |