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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FXFA_FM2JS_CXFA_FMSIMPLEEXPRESSION_H_
#define XFA_FXFA_FM2JS_CXFA_FMSIMPLEEXPRESSION_H_
#include <memory>
#include <vector>
#include "xfa/fxfa/fm2js/cxfa_fmlexer.h"
enum XFA_FM_SimpleExpressionType {
ASSIGN,
LOGICALOR,
LOGICALAND,
EQUALITY,
NOTEQUALITY,
LESS,
LESSEQUAL,
GREATER,
GREATEREQUAL,
PLUS,
MINUS,
MULTIPLE,
DIVIDE,
POSITIVE,
NEGATIVE,
NOT,
CALL,
DOT,
DOTDOT,
CONCATFMOBJECT,
ISFMOBJECT,
ISFMARRAY,
GETFMVALUE,
GETFMJSOBJ,
VARFILTER
};
class CFX_WideTextBuf;
WideStringView XFA_FM_EXPTypeToString(
XFA_FM_SimpleExpressionType simpleExpType);
enum XFA_FM_AccessorIndex {
ACCESSOR_NO_INDEX,
ACCESSOR_NO_RELATIVEINDEX,
ACCESSOR_POSITIVE_INDEX,
ACCESSOR_NEGATIVE_INDEX
};
enum class ReturnType { kImplied, kInfered };
class CXFA_FMSimpleExpression {
public:
CXFA_FMSimpleExpression(uint32_t line, XFA_FM_TOKEN op);
virtual ~CXFA_FMSimpleExpression() {}
virtual bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type);
XFA_FM_TOKEN GetOperatorToken() const;
protected:
uint32_t m_line;
const XFA_FM_TOKEN m_op;
};
class CXFA_FMNullExpression : public CXFA_FMSimpleExpression {
public:
explicit CXFA_FMNullExpression(uint32_t line);
~CXFA_FMNullExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMNumberExpression : public CXFA_FMSimpleExpression {
public:
CXFA_FMNumberExpression(uint32_t line, WideStringView wsNumber);
~CXFA_FMNumberExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsNumber;
};
class CXFA_FMStringExpression : public CXFA_FMSimpleExpression {
public:
CXFA_FMStringExpression(uint32_t line, WideStringView wsString);
~CXFA_FMStringExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsString;
};
class CXFA_FMIdentifierExpression : public CXFA_FMSimpleExpression {
public:
CXFA_FMIdentifierExpression(uint32_t line, WideStringView wsIdentifier);
~CXFA_FMIdentifierExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsIdentifier;
};
class CXFA_FMUnaryExpression : public CXFA_FMSimpleExpression {
public:
CXFA_FMUnaryExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp);
~CXFA_FMUnaryExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
protected:
std::unique_ptr<CXFA_FMSimpleExpression> m_pExp;
};
class CXFA_FMBinExpression : public CXFA_FMSimpleExpression {
public:
CXFA_FMBinExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMBinExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
protected:
std::unique_ptr<CXFA_FMSimpleExpression> m_pExp1;
std::unique_ptr<CXFA_FMSimpleExpression> m_pExp2;
};
class CXFA_FMAssignExpression : public CXFA_FMBinExpression {
public:
CXFA_FMAssignExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMAssignExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMLogicalOrExpression : public CXFA_FMBinExpression {
public:
CXFA_FMLogicalOrExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMLogicalOrExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMLogicalAndExpression : public CXFA_FMBinExpression {
public:
CXFA_FMLogicalAndExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMLogicalAndExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMEqualityExpression : public CXFA_FMBinExpression {
public:
CXFA_FMEqualityExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMEqualityExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMRelationalExpression : public CXFA_FMBinExpression {
public:
CXFA_FMRelationalExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMRelationalExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMAdditiveExpression : public CXFA_FMBinExpression {
public:
CXFA_FMAdditiveExpression(uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMAdditiveExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMMultiplicativeExpression : public CXFA_FMBinExpression {
public:
CXFA_FMMultiplicativeExpression(
uint32_t line,
XFA_FM_TOKEN op,
std::unique_ptr<CXFA_FMSimpleExpression> pExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pExp2);
~CXFA_FMMultiplicativeExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMPosExpression : public CXFA_FMUnaryExpression {
public:
CXFA_FMPosExpression(uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pExp);
~CXFA_FMPosExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMNegExpression : public CXFA_FMUnaryExpression {
public:
CXFA_FMNegExpression(uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pExp);
~CXFA_FMNegExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMNotExpression : public CXFA_FMUnaryExpression {
public:
CXFA_FMNotExpression(uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pExp);
~CXFA_FMNotExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMCallExpression : public CXFA_FMUnaryExpression {
public:
CXFA_FMCallExpression(
uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pExp,
std::vector<std::unique_ptr<CXFA_FMSimpleExpression>>&& pArguments,
bool bIsSomMethod);
~CXFA_FMCallExpression() override;
bool IsBuiltInFunc(CFX_WideTextBuf* funcName);
uint32_t IsMethodWithObjParam(const WideString& methodName);
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
bool m_bIsSomMethod;
std::vector<std::unique_ptr<CXFA_FMSimpleExpression>> m_Arguments;
};
class CXFA_FMDotAccessorExpression : public CXFA_FMBinExpression {
public:
CXFA_FMDotAccessorExpression(
uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pAccessor,
XFA_FM_TOKEN op,
WideStringView wsIdentifier,
std::unique_ptr<CXFA_FMSimpleExpression> pIndexExp);
~CXFA_FMDotAccessorExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsIdentifier;
};
class CXFA_FMIndexExpression : public CXFA_FMUnaryExpression {
public:
CXFA_FMIndexExpression(uint32_t line,
XFA_FM_AccessorIndex accessorIndex,
std::unique_ptr<CXFA_FMSimpleExpression> pIndexExp,
bool bIsStarIndex);
~CXFA_FMIndexExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
XFA_FM_AccessorIndex m_accessorIndex;
bool m_bIsStarIndex;
};
class CXFA_FMDotDotAccessorExpression : public CXFA_FMBinExpression {
public:
CXFA_FMDotDotAccessorExpression(
uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pAccessor,
XFA_FM_TOKEN op,
WideStringView wsIdentifier,
std::unique_ptr<CXFA_FMSimpleExpression> pIndexExp);
~CXFA_FMDotDotAccessorExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsIdentifier;
};
class CXFA_FMMethodCallExpression : public CXFA_FMBinExpression {
public:
CXFA_FMMethodCallExpression(
uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pAccessorExp1,
std::unique_ptr<CXFA_FMSimpleExpression> pCallExp);
~CXFA_FMMethodCallExpression() override {}
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
bool CXFA_IsTooBig(const CFX_WideTextBuf& javascript);
#endif // XFA_FXFA_FM2JS_CXFA_FMSIMPLEEXPRESSION_H_
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