Open CASCADE Technology  6.9.0
Public Member Functions

Expr_NamedExpression Class Reference

Describe an expression used by its name (as constants or variables). A single reference is made to a NamedExpression in every Expression (i.e. a NamedExpression is shared). More...

#include <Expr_NamedExpression.hxx>

Inheritance diagram for Expr_NamedExpression:
Inheritance graph
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Public Member Functions

const TCollection_AsciiStringGetName () const
 
void SetName (const TCollection_AsciiString &name)
 
virtual Standard_Boolean IsShareable () const
 Tests if <me> can be shared by one or more expressions or must be copied. This method redefines to a True value the GeneralExpression method. More...
 
Standard_Boolean IsIdentical (const Handle< Expr_GeneralExpression > &Other) const
 Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing. More...
 
TCollection_AsciiString String () const
 returns a string representing <me> in a readable way. More...
 
- Public Member Functions inherited from Expr_GeneralExpression
virtual Standard_Integer NbSubExpressions () const =0
 Returns the number of sub-expressions contained in <me> ( >= 0) More...
 
virtual const Handle
< Expr_GeneralExpression > & 
SubExpression (const Standard_Integer I) const =0
 Returns the -th sub-expression of <me> raises OutOfRange if > NbSubExpressions(me) More...
 
virtual Handle
< Expr_GeneralExpression
Simplified () const =0
 Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation. More...
 
virtual Handle
< Expr_GeneralExpression
ShallowSimplified () const =0
 Returns a GeneralExpression after a simplification of the arguments of <me>. More...
 
virtual Handle
< Expr_GeneralExpression
Copy () const =0
 Returns a copy of <me> having the same unknowns and functions. More...
 
virtual Standard_Boolean ContainsUnknowns () const =0
 Tests if <me> contains NamedUnknowns. More...
 
virtual Standard_Boolean Contains (const Handle< Expr_GeneralExpression > &exp) const =0
 Tests if <exp> is contained in <me>. More...
 
virtual Standard_Boolean IsLinear () const =0
 Tests if <me> is linear on every NamedUnknown it contains. More...
 
virtual Handle
< Expr_GeneralExpression
Derivative (const Handle< Expr_NamedUnknown > &X) const =0
 Returns the derivative on <X> unknown of <me> More...
 
virtual Handle
< Expr_GeneralExpression
NDerivative (const Handle< Expr_NamedUnknown > &X, const Standard_Integer N) const
 Returns the <N>-th derivative on <X> unknown of <me>. Raise OutOfRange if N <= 0. More...
 
virtual void Replace (const Handle< Expr_NamedUnknown > &var, const Handle< Expr_GeneralExpression > &with)=0
 Replaces all occurences of with copies of <with> in <me>. Copies of <with> are made with the Copy() method. Raises InvalidOperand if <with> contains <me>. More...
 
virtual Standard_Real Evaluate (const Expr_Array1OfNamedUnknown &vars, const TColStd_Array1OfReal &vals) const =0
 Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. More...
 
Standard_Real EvaluateNumeric () const
 Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. More...
 
- Public Member Functions inherited from MMgt_TShared
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual const
Handle_Standard_Type & 
DynamicType () const
 Returns a type information object about this object. More...
 
Standard_Boolean IsInstance (const Handle_Standard_Type &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
Standard_Boolean IsKind (const Handle_Standard_Type &theType) const
 Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
Standard_Boolean IsKind (const Standard_CString theTypeName) const
 Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
virtual Handle_Standard_Transient This () const
 Returns a Handle which references this object. Must never be called to objects created in stack. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 

Detailed Description

Describe an expression used by its name (as constants or variables). A single reference is made to a NamedExpression in every Expression (i.e. a NamedExpression is shared).

Member Function Documentation

const TCollection_AsciiString& Expr_NamedExpression::GetName ( ) const
Standard_Boolean Expr_NamedExpression::IsIdentical ( const Handle< Expr_GeneralExpression > &  Other) const
virtual

Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing.

Implements Expr_GeneralExpression.

virtual Standard_Boolean Expr_NamedExpression::IsShareable ( ) const
virtual

Tests if <me> can be shared by one or more expressions or must be copied. This method redefines to a True value the GeneralExpression method.

Reimplemented from Expr_GeneralExpression.

void Expr_NamedExpression::SetName ( const TCollection_AsciiString name)
TCollection_AsciiString Expr_NamedExpression::String ( ) const
virtual

returns a string representing <me> in a readable way.

Implements Expr_GeneralExpression.


The documentation for this class was generated from the following file: