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| -rw-r--r-- | include/formula/token.hxx | 466 |
1 files changed, 466 insertions, 0 deletions
diff --git a/include/formula/token.hxx b/include/formula/token.hxx new file mode 100644 index 000000000..02bffd6a0 --- /dev/null +++ b/include/formula/token.hxx @@ -0,0 +1,466 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_FORMULA_TOKEN_HXX +#define INCLUDED_FORMULA_TOKEN_HXX + +#include <sal/config.h> + +#include <cstring> +#include <memory> +#include <vector> + +#include <formula/formuladllapi.h> +#include <formula/opcode.hxx> +#include <formula/types.hxx> +#include <formula/paramclass.hxx> +#include <osl/interlck.h> +#include <rtl/ustring.hxx> +#include <sal/types.h> +#include <svl/sharedstring.hxx> + +class ScJumpMatrix; +class ScMatrix; +struct ScComplexRefData; +struct ScSingleRefData; +enum class FormulaError : sal_uInt16; + +namespace formula +{ + +enum StackVar : sal_uInt8 +{ + svByte, + svDouble, + svString, + svSingleRef, + svDoubleRef, + svMatrix, + svIndex, + svJump, + svExternal, // Byte + String + svFAP, // FormulaAutoPilot only, ever exported + svJumpMatrix, + svRefList, // ocUnion result + svEmptyCell, // Result is an empty cell, e.g. in LOOKUP() + + svMatrixCell, // Result is a matrix with bells and + // whistles as needed for _the_ matrix + // formula result. + + svHybridCell, // A temporary condition of a formula + // cell during import, having a double + // and/or string result and a formula + // string to be compiled. + + svExternalSingleRef, + svExternalDoubleRef, + svExternalName, + svSingleVectorRef, + svDoubleVectorRef, + svError, // error token + svMissing, // 0 or "" + svSep, // separator, ocSep, ocOpen, ocClose + svUnknown // unknown StackType +}; + +// Only to be used for debugging output. No guarantee of stability of the +// return value. + +// Turn this into an operator<< when StackVar becomes a scoped enum + +inline std::string StackVarEnumToString(StackVar const e) +{ + switch (e) + { + case svByte: return "Byte"; + case svDouble: return "Double"; + case svString: return "String"; + case svSingleRef: return "SingleRef"; + case svDoubleRef: return "DoubleRef"; + case svMatrix: return "Matrix"; + case svIndex: return "Index"; + case svJump: return "Jump"; + case svExternal: return "External"; + case svFAP: return "FAP"; + case svJumpMatrix: return "JumpMatrix"; + case svRefList: return "RefList"; + case svEmptyCell: return "EmptyCell"; + case svMatrixCell: return "MatrixCell"; + case svHybridCell: return "HybridCell"; + case svExternalSingleRef: return "ExternalSingleRef"; + case svExternalDoubleRef: return "ExternalDoubleRef"; + case svExternalName: return "ExternalName"; + case svSingleVectorRef: return "SingleVectorRef"; + case svDoubleVectorRef: return "DoubleVectorRef"; + case svError: return "Error"; + case svMissing: return "Missing"; + case svSep: return "Sep"; + case svUnknown: return "Unknown"; + } + std::ostringstream os; + os << static_cast<int>(e); + return os.str(); +} + +class FORMULA_DLLPUBLIC FormulaToken +{ + OpCode eOp; + const StackVar eType; // type of data + mutable oslInterlockedCount mnRefCnt; // reference count + + FormulaToken& operator=( const FormulaToken& ) = delete; +public: + FormulaToken( StackVar eTypeP,OpCode e = ocPush ); + FormulaToken( const FormulaToken& r ); + + virtual ~FormulaToken(); + + void Delete() { delete this; } + void DeleteIfZeroRef() { if (mnRefCnt == 0) delete this; } + StackVar GetType() const { return eType; } + bool IsFunction() const; // pure functions, no operators + + bool IsExternalRef() const; + bool IsRef() const; + + sal_uInt8 GetParamCount() const; + + void IncRef() const + { + osl_atomic_increment(&mnRefCnt); + } + + void DecRef() const + { + if (!osl_atomic_decrement(&mnRefCnt)) + const_cast<FormulaToken*>(this)->Delete(); + } + + oslInterlockedCount GetRef() const { return mnRefCnt; } + OpCode GetOpCode() const { return eOp; } + + bool IsInForceArray() const; + + /** + Dummy methods to avoid switches and casts where possible, + the real token classes have to override the appropriate method[s]. + The only methods valid anytime if not overridden are: + + - GetByte() since this represents the count of parameters to a function + which of course is 0 on non-functions. FormulaByteToken and ScExternal do + override it. + + - GetInForceArray() since also this is only used for operators and + functions and is ParamClass::Unknown for other tokens. + + Any other non-overridden method pops up an assertion. + */ + + virtual sal_uInt8 GetByte() const; + virtual void SetByte( sal_uInt8 n ); + virtual ParamClass GetInForceArray() const; + virtual void SetInForceArray( ParamClass c ); + virtual double GetDouble() const; + virtual double& GetDoubleAsReference(); + virtual sal_Int16 GetDoubleType() const; + virtual void SetDoubleType( sal_Int16 nType ); + virtual svl::SharedString GetString() const; + virtual void SetString( const svl::SharedString& rStr ); + virtual sal_uInt16 GetIndex() const; + virtual void SetIndex( sal_uInt16 n ); + virtual sal_Int16 GetSheet() const; + virtual void SetSheet( sal_Int16 n ); + virtual short* GetJump() const; + virtual const OUString& GetExternal() const; + virtual FormulaToken* GetFAPOrigToken() const; + virtual FormulaError GetError() const; + virtual void SetError( FormulaError ); + + virtual const ScSingleRefData* GetSingleRef() const; + virtual ScSingleRefData* GetSingleRef(); + virtual const ScComplexRefData* GetDoubleRef() const; + virtual ScComplexRefData* GetDoubleRef(); + virtual const ScSingleRefData* GetSingleRef2() const; + virtual ScSingleRefData* GetSingleRef2(); + virtual const ScMatrix* GetMatrix() const; + virtual ScMatrix* GetMatrix(); + virtual ScJumpMatrix* GetJumpMatrix() const; + virtual const std::vector<ScComplexRefData>* GetRefList() const; + virtual std::vector<ScComplexRefData>* GetRefList(); + + virtual FormulaToken* Clone() const { return new FormulaToken(*this); } + + virtual bool TextEqual( const formula::FormulaToken& rToken ) const; + virtual bool operator==( const FormulaToken& rToken ) const; + + /** This is dirty and only the compiler should use it! */ + struct PrivateAccess { friend class FormulaCompiler; private: PrivateAccess() { } }; + void NewOpCode( OpCode e, const PrivateAccess& ) { eOp = e; } +}; + +inline void intrusive_ptr_add_ref(const FormulaToken* p) +{ + p->IncRef(); +} + +inline void intrusive_ptr_release(const FormulaToken* p) +{ + p->DecRef(); +} + +class FORMULA_DLLPUBLIC FormulaByteToken : public FormulaToken +{ +private: + sal_uInt8 nByte; + ParamClass eInForceArray; +protected: + FormulaByteToken( OpCode e, sal_uInt8 n, StackVar v, ParamClass c ) : + FormulaToken( v,e ), nByte( n ), + eInForceArray( c ) {} +public: + FormulaByteToken( OpCode e, sal_uInt8 n, ParamClass c ) : + FormulaToken( svByte,e ), nByte( n ), + eInForceArray( c ) {} + FormulaByteToken( OpCode e, sal_uInt8 n ) : + FormulaToken( svByte,e ), nByte( n ), + eInForceArray( ParamClass::Unknown ) {} + FormulaByteToken( OpCode e ) : + FormulaToken( svByte,e ), nByte( 0 ), + eInForceArray( ParamClass::Unknown ) {} + FormulaByteToken( const FormulaByteToken& r ) : + FormulaToken( r ), nByte( r.nByte ), + eInForceArray( r.eInForceArray ) {} + + virtual FormulaToken* Clone() const override { return new FormulaByteToken(*this); } + virtual sal_uInt8 GetByte() const override; + virtual void SetByte( sal_uInt8 n ) override; + virtual ParamClass GetInForceArray() const override; + virtual void SetInForceArray( ParamClass c ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +// A special token for the FormulaAutoPilot only. Keeps a reference pointer of +// the token of which it was created for comparison. +class FORMULA_DLLPUBLIC FormulaFAPToken final : public FormulaByteToken +{ +private: + FormulaTokenRef pOrigToken; +public: + FormulaFAPToken( OpCode e, sal_uInt8 n, FormulaToken* p ) : + FormulaByteToken( e, n, svFAP, ParamClass::Unknown ), + pOrigToken( p ) {} + FormulaFAPToken( const FormulaFAPToken& r ) : + FormulaByteToken( r ), pOrigToken( r.pOrigToken ) {} + + virtual FormulaToken* Clone() const override { return new FormulaFAPToken(*this); } + virtual FormulaToken* GetFAPOrigToken() const override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + +class FORMULA_DLLPUBLIC FormulaDoubleToken : public FormulaToken +{ +private: + double fDouble; +public: + FormulaDoubleToken( double f ) : + FormulaToken( svDouble ), fDouble( f ) {} + FormulaDoubleToken( const FormulaDoubleToken& r ) : + FormulaToken( r ), fDouble( r.fDouble ) {} + + virtual FormulaToken* Clone() const override { return new FormulaDoubleToken(*this); } + virtual double GetDouble() const override; + virtual double& GetDoubleAsReference() override; + virtual sal_Int16 GetDoubleType() const override; ///< always returns 0 for "not typed" + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + +class FORMULA_DLLPUBLIC FormulaTypedDoubleToken final : public FormulaDoubleToken +{ +private: + sal_Int16 mnType; /**< Can hold, for example, a value + of SvNumFormatType, or by + contract any other + classification. */ +public: + FormulaTypedDoubleToken( double f, sal_Int16 nType ) : + FormulaDoubleToken( f ), mnType( nType ) {} + FormulaTypedDoubleToken( const FormulaTypedDoubleToken& r ) : + FormulaDoubleToken( r ), mnType( r.mnType ) {} + + virtual FormulaToken* Clone() const override { return new FormulaTypedDoubleToken(*this); } + virtual sal_Int16 GetDoubleType() const override; + virtual void SetDoubleType( sal_Int16 nType ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +class FORMULA_DLLPUBLIC FormulaStringToken final : public FormulaToken +{ + svl::SharedString maString; +public: + FormulaStringToken( const svl::SharedString& r ); + FormulaStringToken( const FormulaStringToken& r ); + + virtual FormulaToken* Clone() const override; + virtual svl::SharedString GetString() const override; + virtual void SetString( const svl::SharedString& rStr ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +/** Identical to FormulaStringToken, but with explicit OpCode instead of implicit + ocPush, and an optional sal_uInt8 for ocBad tokens. */ +class FORMULA_DLLPUBLIC FormulaStringOpToken final : public FormulaByteToken +{ + svl::SharedString maString; +public: + FormulaStringOpToken( OpCode e, const svl::SharedString& r ); + FormulaStringOpToken( const FormulaStringOpToken& r ); + + virtual FormulaToken* Clone() const override; + virtual svl::SharedString GetString() const override; + virtual void SetString( const svl::SharedString& rStr ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + +class FORMULA_DLLPUBLIC FormulaIndexToken final : public FormulaToken +{ +private: + sal_uInt16 nIndex; + sal_Int16 mnSheet; +public: + FormulaIndexToken( OpCode e, sal_uInt16 n, sal_Int16 nSheet = -1 ) : + FormulaToken( svIndex, e ), nIndex( n ), mnSheet( nSheet ) {} + FormulaIndexToken( const FormulaIndexToken& r ) : + FormulaToken( r ), nIndex( r.nIndex ), mnSheet( r.mnSheet ) {} + + virtual FormulaToken* Clone() const override { return new FormulaIndexToken(*this); } + virtual sal_uInt16 GetIndex() const override; + virtual void SetIndex( sal_uInt16 n ) override; + virtual sal_Int16 GetSheet() const override; + virtual void SetSheet( sal_Int16 n ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +class FORMULA_DLLPUBLIC FormulaExternalToken final : public FormulaToken +{ +private: + OUString aExternal; + sal_uInt8 nByte; +public: + FormulaExternalToken( OpCode e, sal_uInt8 n, const OUString& r ) : + FormulaToken( svExternal, e ), aExternal( r ), + nByte( n ) {} + FormulaExternalToken( OpCode e, const OUString& r ) : + FormulaToken(svExternal, e ), aExternal( r ), + nByte( 0 ) {} + FormulaExternalToken( const FormulaExternalToken& r ) : + FormulaToken( r ), aExternal( r.aExternal ), + nByte( r.nByte ) {} + + virtual FormulaToken* Clone() const override { return new FormulaExternalToken(*this); } + virtual const OUString& GetExternal() const override; + virtual sal_uInt8 GetByte() const override; + virtual void SetByte( sal_uInt8 n ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +class FORMULA_DLLPUBLIC FormulaMissingToken final : public FormulaToken +{ +public: + FormulaMissingToken() : + FormulaToken( svMissing,ocMissing ) {} + FormulaMissingToken( const FormulaMissingToken& r ) : + FormulaToken( r ) {} + + virtual FormulaToken* Clone() const override { return new FormulaMissingToken(*this); } + virtual double GetDouble() const override; + virtual svl::SharedString GetString() const override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + +class FORMULA_DLLPUBLIC FormulaJumpToken final : public FormulaToken +{ +private: + std::unique_ptr<short[]> + pJump; + ParamClass eInForceArray; +public: + FormulaJumpToken( OpCode e, short const * p ) : + FormulaToken( formula::svJump , e), + eInForceArray( ParamClass::Unknown) + { + pJump.reset( new short[ p[0] + 1 ] ); + memcpy( pJump.get(), p, (p[0] + 1) * sizeof(short) ); + } + FormulaJumpToken( const FormulaJumpToken& r ) : + FormulaToken( r ), + eInForceArray( r.eInForceArray) + { + pJump.reset( new short[ r.pJump[0] + 1 ] ); + memcpy( pJump.get(), r.pJump.get(), (r.pJump[0] + 1) * sizeof(short) ); + } + virtual ~FormulaJumpToken() override; + virtual short* GetJump() const override; + virtual bool operator==( const formula::FormulaToken& rToken ) const override; + virtual FormulaToken* Clone() const override { return new FormulaJumpToken(*this); } + virtual ParamClass GetInForceArray() const override; + virtual void SetInForceArray( ParamClass c ) override; +}; + + +class FORMULA_DLLPUBLIC FormulaUnknownToken final : public FormulaToken +{ +public: + FormulaUnknownToken( OpCode e ) : + FormulaToken( svUnknown, e ) {} + FormulaUnknownToken( const FormulaUnknownToken& r ) : + FormulaToken( r ) {} + + virtual FormulaToken* Clone() const override { return new FormulaUnknownToken(*this); } + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +class FORMULA_DLLPUBLIC FormulaErrorToken final : public FormulaToken +{ + FormulaError nError; +public: + FormulaErrorToken( FormulaError nErr ) : + FormulaToken( svError ), nError( nErr) {} + FormulaErrorToken( const FormulaErrorToken& r ) : + FormulaToken( r ), nError( r.nError) {} + + virtual FormulaToken* Clone() const override { return new FormulaErrorToken(*this); } + virtual FormulaError GetError() const override; + virtual void SetError( FormulaError nErr ) override; + virtual bool operator==( const FormulaToken& rToken ) const override; +}; + + +} // formula + + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |