// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FXFA_FM2JS_XFA_EXPRESSION_H_
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#define XFA_FXFA_FM2JS_XFA_EXPRESSION_H_
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#include <memory>
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#include "xfa/fxfa/fm2js/xfa_simpleexpression.h"
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enum XFA_FM_EXPTYPE {
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XFA_FM_EXPTYPE_UNKNOWN,
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XFA_FM_EXPTYPE_FUNC,
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XFA_FM_EXPTYPE_VAR,
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XFA_FM_EXPTYPE_EXP,
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XFA_FM_EXPTYPE_BLOCK,
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XFA_FM_EXPTYPE_IF,
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XFA_FM_EXPTYPE_BREAK,
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XFA_FM_EXPTYPE_CONTINUE,
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};
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class CXFA_FMExpression {
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public:
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explicit CXFA_FMExpression(uint32_t line);
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CXFA_FMExpression(uint32_t line, XFA_FM_EXPTYPE type);
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virtual ~CXFA_FMExpression() {}
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virtual void ToJavaScript(CFX_WideTextBuf& javascript);
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virtual void ToImpliedReturnJS(CFX_WideTextBuf&);
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uint32_t GetLine() { return m_line; }
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XFA_FM_EXPTYPE GetExpType() const { return m_type; }
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protected:
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XFA_FM_EXPTYPE m_type;
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uint32_t m_line;
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};
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class CXFA_FMFunctionDefinition : public CXFA_FMExpression {
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public:
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// Takes ownership of |pExpressions|.
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CXFA_FMFunctionDefinition(
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uint32_t line,
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FX_BOOL isGlobal,
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const CFX_WideStringC& wsName,
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CFX_WideStringCArray* pArguments,
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CFX_ArrayTemplate<CXFA_FMExpression*>* pExpressions);
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~CXFA_FMFunctionDefinition() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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CFX_WideStringC m_wsName;
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CFX_WideStringCArray* m_pArguments;
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CFX_ArrayTemplate<CXFA_FMExpression*>* m_pExpressions;
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FX_BOOL m_isGlobal;
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};
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class CXFA_FMVarExpression : public CXFA_FMExpression {
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public:
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CXFA_FMVarExpression(uint32_t line,
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const CFX_WideStringC& wsName,
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CXFA_FMExpression* pInit);
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~CXFA_FMVarExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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CFX_WideStringC m_wsName;
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std::unique_ptr<CXFA_FMExpression> m_pInit;
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};
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class CXFA_FMExpExpression : public CXFA_FMExpression {
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public:
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CXFA_FMExpExpression(uint32_t line, CXFA_FMSimpleExpression* pExpression);
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~CXFA_FMExpExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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std::unique_ptr<CXFA_FMSimpleExpression> m_pExpression;
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};
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class CXFA_FMBlockExpression : public CXFA_FMExpression {
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public:
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// Takes ownership of |pExpressionList|.
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CXFA_FMBlockExpression(
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uint32_t line,
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CFX_ArrayTemplate<CXFA_FMExpression*>* pExpressionList);
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~CXFA_FMBlockExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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CFX_ArrayTemplate<CXFA_FMExpression*>* m_pExpressionList;
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};
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class CXFA_FMDoExpression : public CXFA_FMExpression {
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public:
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CXFA_FMDoExpression(uint32_t line, CXFA_FMExpression* pList);
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~CXFA_FMDoExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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std::unique_ptr<CXFA_FMExpression> m_pList;
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};
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class CXFA_FMIfExpression : public CXFA_FMExpression {
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public:
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CXFA_FMIfExpression(uint32_t line,
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CXFA_FMSimpleExpression* pExpression,
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CXFA_FMExpression* pIfExpression,
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CXFA_FMExpression* pElseExpression);
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~CXFA_FMIfExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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std::unique_ptr<CXFA_FMSimpleExpression> m_pExpression;
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std::unique_ptr<CXFA_FMExpression> m_pIfExpression;
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std::unique_ptr<CXFA_FMExpression> m_pElseExpression;
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};
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class CXFA_FMLoopExpression : public CXFA_FMExpression {
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public:
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explicit CXFA_FMLoopExpression(uint32_t line) : CXFA_FMExpression(line) {}
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~CXFA_FMLoopExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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};
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class CXFA_FMWhileExpression : public CXFA_FMLoopExpression {
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public:
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CXFA_FMWhileExpression(uint32_t line,
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CXFA_FMSimpleExpression* pCodition,
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CXFA_FMExpression* pExpression);
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~CXFA_FMWhileExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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std::unique_ptr<CXFA_FMSimpleExpression> m_pCondition;
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std::unique_ptr<CXFA_FMExpression> m_pExpression;
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};
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class CXFA_FMBreakExpression : public CXFA_FMExpression {
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public:
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explicit CXFA_FMBreakExpression(uint32_t line);
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~CXFA_FMBreakExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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};
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class CXFA_FMContinueExpression : public CXFA_FMExpression {
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public:
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explicit CXFA_FMContinueExpression(uint32_t line);
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~CXFA_FMContinueExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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};
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class CXFA_FMForExpression : public CXFA_FMLoopExpression {
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public:
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CXFA_FMForExpression(uint32_t line,
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const CFX_WideStringC& wsVariant,
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CXFA_FMSimpleExpression* pAssignment,
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CXFA_FMSimpleExpression* pAccessor,
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int32_t iDirection,
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CXFA_FMSimpleExpression* pStep,
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CXFA_FMExpression* pList);
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~CXFA_FMForExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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CFX_WideStringC m_wsVariant;
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std::unique_ptr<CXFA_FMSimpleExpression> m_pAssignment;
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std::unique_ptr<CXFA_FMSimpleExpression> m_pAccessor;
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int32_t m_iDirection;
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std::unique_ptr<CXFA_FMSimpleExpression> m_pStep;
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std::unique_ptr<CXFA_FMExpression> m_pList;
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};
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class CXFA_FMForeachExpression : public CXFA_FMLoopExpression {
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public:
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// Takes ownership of |pAccessors|.
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CXFA_FMForeachExpression(
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uint32_t line,
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const CFX_WideStringC& wsIdentifier,
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CFX_ArrayTemplate<CXFA_FMSimpleExpression*>* pAccessors,
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CXFA_FMExpression* pList);
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~CXFA_FMForeachExpression() override;
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void ToJavaScript(CFX_WideTextBuf& javascript) override;
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void ToImpliedReturnJS(CFX_WideTextBuf&) override;
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private:
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CFX_WideStringC m_wsIdentifier;
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CFX_ArrayTemplate<CXFA_FMSimpleExpression*>* m_pAccessors;
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std::unique_ptr<CXFA_FMExpression> m_pList;
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};
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#endif // XFA_FXFA_FM2JS_XFA_EXPRESSION_H_
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