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_VARIABLE_EXPRESSION_H___ 27 #define __MATHML_AST_VARIABLE_EXPRESSION_H___ 28 29 #include "MathMLSolverPrerequisites.h" 30 #include "MathMLString.h" 31 #include "MathMLASTNode.h" 32 #include "MathMLASTConstantExpression.h" 33 34 namespace MathML 35 { 36 37 namespace AST 38 { 39 40 /** Specialized variable node implementing INode. */ 41 42 class _MATHML_SOLVER_EXPORT VariableExpression : public INode 43 { 44 45 private: 46 /** The name of the variable. */ 47 String mName; 48 49 /** The value of the variable. */ 50 ConstantExpression* mValue; 51 52 public: 53 /** Initializing constructor. 54 @param name The name of the variable 55 */ 56 VariableExpression( const String& name ); 57 58 /** D-tor. */ 59 virtual ~VariableExpression(); 60 61 // see INode::accept(IVisitor* ) 62 virtual void accept( IVisitor* visitor ) const; 63 64 // see INode::getType() getNodeType()65 virtual NodeType getNodeType() const { return VARIABLE; } 66 67 /** @return a copy of this node. */ 68 virtual INode* clone(CloneFlags cloneFlags) const; 69 70 /** Getter for the name of the variable. 71 @return The name of the variable. 72 */ 73 virtual const String& getName() const; 74 75 /** Getter for value of the variable. 76 @par If variable is not initialized, the scalar holding the value is 77 of type 'SCALAR_INVALID'. 78 @return The ConstantExpression holding the value of the variable. 79 */ 80 virtual const ConstantExpression* getValue() const; 81 82 /** Setter for the value of the variable. 83 @param value The ConstantExpression to set as value. 84 */ 85 virtual void setValue( ConstantExpression* value ) ; 86 virtual void setValue( int value ) ; 87 virtual void setValue( long value ) ; 88 virtual void setValue( double value ) ; 89 virtual void setValue( bool value ) ; 90 }; 91 92 } //namespace AST 93 94 } //namespace MathML 95 96 #endif //__MATHML_AST_VARIABLE_EXPRESSION_H___ 97