1 /****************************************************************************** 2 Copyright (c) 2007 netAllied GmbH, Tettnang 3 4 Permission is hereby granted, free of charge, to any person 5 obtaining a copy of this software and associated documentation 6 files (the "Software"), to deal in the Software without 7 restriction, including without limitation the rights to use, 8 copy, modify, merge, publish, distribute, sublicense, and/or sell 9 copies of the Software, and to permit persons to whom the 10 Software is furnished to do so, subject to the following 11 conditions: 12 13 The above copyright notice and this permission notice shall be 14 included in all copies or substantial portions of the Software. 15 16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 18 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 20 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 21 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 OTHER DEALINGS IN THE SOFTWARE. 24 ******************************************************************************/ 25 26 #ifndef __MATHML_AST_UNARY_ARITHMETIC_EXPRESSION_H___ 27 #define __MATHML_AST_UNARY_ARITHMETIC_EXPRESSION_H___ 28 29 #include "MathMLSolverPrerequisites.h" 30 #include "MathMLASTNode.h" 31 32 namespace MathML 33 { 34 35 namespace AST 36 { 37 /** String representation for enum Operator::ADD. */ 38 static const String OPERATOR_UNARY_ADD = "+"; 39 /** String representation for enum Operator::SUB. */ 40 static const String OPERATOR_UNARY_SUB = "-"; 41 /** String representation for enum Operator::NOT. */ 42 static const String OPERATOR_UNARY_NOT = "!"; 43 /** String representation for invalid operator. */ 44 static const String OPERATOR_UNARY_ILLEGAL = "ILLEGAL"; 45 46 /** Specialized unary arithmetic node implementing INode. */ 47 48 class _MATHML_SOLVER_EXPORT UnaryExpression : public INode 49 { 50 51 public: 52 /** Enumeration of the unary arithmetic operators. */ 53 enum Operator 54 { 55 ADD, 56 SUB, 57 NOT 58 }; 59 60 private: 61 /** The operand for the unary expression. */ 62 INode* mOperand; 63 64 /** The operator of the unary expression. */ 65 Operator mOperator; 66 67 /** Disable copy construction to avoid expensive deep copies of big trees. 68 */ 69 UnaryExpression( const UnaryExpression& ); 70 UnaryExpression& operator=( const UnaryExpression& ); 71 72 public: 73 /** C-tor. */ 74 UnaryExpression(); 75 76 /** D-tor. */ 77 virtual ~UnaryExpression(); 78 79 // see INode::accept(IVisitor* ) 80 virtual void accept( IVisitor* visitor ) const; 81 82 // see INode::getType() getNodeType()83 virtual NodeType getNodeType() const { return UNARY; } 84 85 /** @return a copy of this node. */ 86 virtual INode* clone(CloneFlags cloneFlags) const; 87 88 /** Getter for the operator of the unary expression. 89 @return The operator of the expression. 90 */ 91 virtual Operator getOperator() const; 92 93 /** Setter for the operator of the unary expression. 94 @param op The operator to set. 95 */ 96 virtual void setOperator( Operator op ); 97 98 /** Getter for the operator of the unary expression. 99 @return The operator of the expression as string. 100 */ 101 virtual const String& getOperatorString() const; 102 103 /** Setter for the operator of the unary expression. 104 @param op The operator to set as string. 105 */ 106 virtual void setOperator( const String& op ); 107 108 /** Getter for the operand of the unary expression. 109 @return The operand of the expression. 110 */ 111 virtual INode* getOperand() const; 112 113 /** Setter for the operand of the unary expression. 114 @param operand The operand to set. 115 */ 116 virtual void setOperand( INode* operand ); 117 118 /** Returns a string representation of passed operator. */ 119 static const String& operatorString( Operator op ); 120 }; 121 122 } //namespace AST 123 124 } //namespace MathML 125 126 #endif //__MATHML_AST_UNARY_ARITHMETIC_EXPRESSION_H___ 127