1 files changed, 308 insertions, 0 deletions
diff --git a/xfa/fxfa/fm2js/cxfa_fmsimpleexpression.h b/xfa/fxfa/fm2js/cxfa_fmsimpleexpression.h
new file mode 100644
index 0000000000..e6d39419ed
--- /dev/null
+++ b/xfa/fxfa/fm2js/cxfa_fmsimpleexpression.h
@@ -0,0 +1,308 @@
+// 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 "core/fxcrt/fx_basic.h"
+#include "xfa/fxfa/fm2js/cxfa_fmlexer.h"
+
+#define RUNTIMEFUNCTIONRETURNVALUE \
+  (L"foxit_xfa_formcalc_runtime_func_return_value")
+#define EXCLAMATION_IN_IDENTIFIER (L"foxit_xfa_formcalc__exclamation__")
+
+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
+};
+
+CFX_WideStringC XFA_FM_EXPTypeToString(
+    XFA_FM_SimpleExpressionType simpleExpType);
+
+enum XFA_FM_AccessorIndex {
+  ACCESSOR_NO_INDEX,
+  ACCESSOR_NO_RELATIVEINDEX,
+  ACCESSOR_POSITIVE_INDEX,
+  ACCESSOR_NEGATIVE_INDEX
+};
+
+class CXFA_FMSimpleExpression {
+ public:
+  CXFA_FMSimpleExpression(uint32_t line, XFA_FM_TOKEN op);
+  virtual ~CXFA_FMSimpleExpression() {}
+  virtual bool ToJavaScript(CFX_WideTextBuf& javascript);
+  virtual bool ToImpliedReturnJS(CFX_WideTextBuf& javascript);
+
+  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) override;
+};
+
+class CXFA_FMNumberExpression : public CXFA_FMSimpleExpression {
+ public:
+  CXFA_FMNumberExpression(uint32_t line, CFX_WideStringC wsNumber);
+  ~CXFA_FMNumberExpression() override;
+  bool ToJavaScript(CFX_WideTextBuf& javascript) override;
+
+ private:
+  CFX_WideStringC m_wsNumber;
+};
+
+class CXFA_FMStringExpression : public CXFA_FMSimpleExpression {
+ public:
+  CXFA_FMStringExpression(uint32_t line, CFX_WideStringC wsString);
+  ~CXFA_FMStringExpression() override;
+  bool ToJavaScript(CFX_WideTextBuf& javascript) override;
+
+ private:
+  CFX_WideStringC m_wsString;
+};
+
+class CXFA_FMIdentifierExpression : public CXFA_FMSimpleExpression {
+ public:
+  CXFA_FMIdentifierExpression(uint32_t line, CFX_WideStringC wsIdentifier);
+  ~CXFA_FMIdentifierExpression() override;
+  bool ToJavaScript(CFX_WideTextBuf& javascript) override;
+
+ private:
+  CFX_WideStringC 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) 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) 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) override;
+  bool ToImpliedReturnJS(CFX_WideTextBuf& javascript) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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 IsBuildInFunc(CFX_WideTextBuf* funcName);
+  uint32_t IsMethodWithObjParam(const CFX_WideStringC& methodName);
+  bool ToJavaScript(CFX_WideTextBuf& javascript) 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,
+      CFX_WideStringC wsIdentifier,
+      std::unique_ptr<CXFA_FMSimpleExpression> pIndexExp);
+  ~CXFA_FMDotAccessorExpression() override;
+  bool ToJavaScript(CFX_WideTextBuf& javascript) override;
+
+ private:
+  CFX_WideStringC 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) 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,
+      CFX_WideStringC wsIdentifier,
+      std::unique_ptr<CXFA_FMSimpleExpression> pIndexExp);
+  ~CXFA_FMDotDotAccessorExpression() override;
+
+  bool ToJavaScript(CFX_WideTextBuf& javascript) override;
+
+ private:
+  CFX_WideStringC 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) override;
+};
+
+bool CFXA_IsTooBig(const CFX_WideTextBuf& javascript);
+
+#endif  // XFA_FXFA_FM2JS_CXFA_FMSIMPLEEXPRESSION_H_