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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_FMEXPRESSION_H_
#define XFA_FXFA_FM2JS_CXFA_FMEXPRESSION_H_
#include <memory>
#include <vector>
#include "xfa/fxfa/fm2js/cxfa_fmsimpleexpression.h"
enum XFA_FM_EXPTYPE {
XFA_FM_EXPTYPE_UNKNOWN,
XFA_FM_EXPTYPE_FUNC,
XFA_FM_EXPTYPE_VAR,
XFA_FM_EXPTYPE_EXP,
XFA_FM_EXPTYPE_BLOCK,
XFA_FM_EXPTYPE_IF,
XFA_FM_EXPTYPE_BREAK,
XFA_FM_EXPTYPE_CONTINUE,
};
class CFX_WideTextBuf;
class CXFA_FMExpression {
public:
virtual ~CXFA_FMExpression() {}
virtual bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) = 0;
uint32_t GetLine() { return m_line; }
XFA_FM_EXPTYPE GetExpType() const { return m_type; }
protected:
explicit CXFA_FMExpression(uint32_t line);
CXFA_FMExpression(uint32_t line, XFA_FM_EXPTYPE type);
private:
XFA_FM_EXPTYPE m_type;
uint32_t m_line;
};
class CXFA_FMFunctionDefinition : public CXFA_FMExpression {
public:
CXFA_FMFunctionDefinition(
uint32_t line,
bool isGlobal,
const WideStringView& wsName,
std::vector<WideStringView>&& arguments,
std::vector<std::unique_ptr<CXFA_FMExpression>>&& expressions);
~CXFA_FMFunctionDefinition() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsName;
std::vector<WideStringView> m_pArguments;
std::vector<std::unique_ptr<CXFA_FMExpression>> m_pExpressions;
bool m_isGlobal;
};
class CXFA_FMVarExpression : public CXFA_FMExpression {
public:
CXFA_FMVarExpression(uint32_t line,
const WideStringView& wsName,
std::unique_ptr<CXFA_FMSimpleExpression> pInit);
~CXFA_FMVarExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsName;
std::unique_ptr<CXFA_FMSimpleExpression> m_pInit;
};
class CXFA_FMExpExpression : public CXFA_FMExpression {
public:
CXFA_FMExpExpression(uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pExpression);
~CXFA_FMExpExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
std::unique_ptr<CXFA_FMSimpleExpression> m_pExpression;
};
class CXFA_FMBlockExpression : public CXFA_FMExpression {
public:
CXFA_FMBlockExpression(
uint32_t line,
std::vector<std::unique_ptr<CXFA_FMExpression>>&& pExpressionList);
~CXFA_FMBlockExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
std::vector<std::unique_ptr<CXFA_FMExpression>> m_ExpressionList;
};
class CXFA_FMDoExpression : public CXFA_FMExpression {
public:
CXFA_FMDoExpression(uint32_t line, std::unique_ptr<CXFA_FMExpression> pList);
~CXFA_FMDoExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
std::unique_ptr<CXFA_FMExpression> m_pList;
};
class CXFA_FMIfExpression : public CXFA_FMExpression {
public:
CXFA_FMIfExpression(uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pExpression,
std::unique_ptr<CXFA_FMExpression> pIfExpression,
std::unique_ptr<CXFA_FMExpression> pElseExpression);
~CXFA_FMIfExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
std::unique_ptr<CXFA_FMSimpleExpression> m_pExpression;
std::unique_ptr<CXFA_FMExpression> m_pIfExpression;
std::unique_ptr<CXFA_FMExpression> m_pElseExpression;
};
class CXFA_FMWhileExpression : public CXFA_FMExpression {
public:
CXFA_FMWhileExpression(uint32_t line,
std::unique_ptr<CXFA_FMSimpleExpression> pCodition,
std::unique_ptr<CXFA_FMExpression> pExpression);
~CXFA_FMWhileExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
std::unique_ptr<CXFA_FMSimpleExpression> m_pCondition;
std::unique_ptr<CXFA_FMExpression> m_pExpression;
};
class CXFA_FMBreakExpression : public CXFA_FMExpression {
public:
explicit CXFA_FMBreakExpression(uint32_t line);
~CXFA_FMBreakExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMContinueExpression : public CXFA_FMExpression {
public:
explicit CXFA_FMContinueExpression(uint32_t line);
~CXFA_FMContinueExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
};
class CXFA_FMForExpression : public CXFA_FMExpression {
public:
CXFA_FMForExpression(uint32_t line,
const WideStringView& wsVariant,
std::unique_ptr<CXFA_FMSimpleExpression> pAssignment,
std::unique_ptr<CXFA_FMSimpleExpression> pAccessor,
int32_t iDirection,
std::unique_ptr<CXFA_FMSimpleExpression> pStep,
std::unique_ptr<CXFA_FMExpression> pList);
~CXFA_FMForExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsVariant;
std::unique_ptr<CXFA_FMSimpleExpression> m_pAssignment;
std::unique_ptr<CXFA_FMSimpleExpression> m_pAccessor;
const bool m_bDirection;
std::unique_ptr<CXFA_FMSimpleExpression> m_pStep;
std::unique_ptr<CXFA_FMExpression> m_pList;
};
class CXFA_FMForeachExpression : public CXFA_FMExpression {
public:
// Takes ownership of |pAccessors|.
CXFA_FMForeachExpression(
uint32_t line,
const WideStringView& wsIdentifier,
std::vector<std::unique_ptr<CXFA_FMSimpleExpression>>&& pAccessors,
std::unique_ptr<CXFA_FMExpression> pList);
~CXFA_FMForeachExpression() override;
bool ToJavaScript(CFX_WideTextBuf& javascript, ReturnType type) override;
private:
WideStringView m_wsIdentifier;
std::vector<std::unique_ptr<CXFA_FMSimpleExpression>> m_pAccessors;
std::unique_ptr<CXFA_FMExpression> m_pList;
};
#endif // XFA_FXFA_FM2JS_CXFA_FMEXPRESSION_H_
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