Open CASCADE Technology 7.8.2.dev
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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>
Public Member Functions | |
const TCollection_AsciiString & | GetName () const |
void | SetName (const TCollection_AsciiString &name) |
virtual Standard_Boolean | IsShareable () const override |
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. | |
Standard_Boolean | IsIdentical (const Handle< Expr_GeneralExpression > &Other) const override |
Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing. | |
TCollection_AsciiString | String () const override |
returns a string representing <me> in a readable way. | |
Public Member Functions inherited from Expr_GeneralExpression | |
virtual Standard_Integer | NbSubExpressions () const =0 |
Returns the number of sub-expressions contained in <me> ( >= 0) | |
virtual const Handle< Expr_GeneralExpression > & | SubExpression (const Standard_Integer I) const =0 |
Returns the -th sub-expression of <me> raises OutOfRange if > NbSubExpressions(me) | |
virtual Handle< Expr_GeneralExpression > | Simplified () const =0 |
Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation. | |
virtual Handle< Expr_GeneralExpression > | ShallowSimplified () const =0 |
Returns a GeneralExpression after a simplification of the arguments of <me>. | |
virtual Handle< Expr_GeneralExpression > | Copy () const =0 |
Returns a copy of <me> having the same unknowns and functions. | |
virtual Standard_Boolean | ContainsUnknowns () const =0 |
Tests if <me> contains NamedUnknowns. | |
virtual Standard_Boolean | Contains (const Handle< Expr_GeneralExpression > &exp) const =0 |
Tests if <exp> is contained in <me>. | |
virtual Standard_Boolean | IsLinear () const =0 |
Tests if <me> is linear on every NamedUnknown it contains. | |
virtual Handle< Expr_GeneralExpression > | Derivative (const Handle< Expr_NamedUnknown > &X) const =0 |
Returns the derivative on <X> unknown of <me> | |
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. | |
virtual void | Replace (const Handle< Expr_NamedUnknown > &var, const Handle< Expr_GeneralExpression > &with)=0 |
Replaces all occurrences of with copies of <with> in <me>. Copies of <with> are made with the Copy() method. Raises InvalidOperand if <with> contains <me>. | |
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. | |
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. | |
Public Member Functions inherited from Standard_Transient | |
Standard_Transient () | |
Empty constructor. | |
Standard_Transient (const Standard_Transient &) | |
Copy constructor – does nothing. | |
Standard_Transient & | operator= (const Standard_Transient &) |
Assignment operator, needed to avoid copying reference counter. | |
virtual | ~Standard_Transient () |
Destructor must be virtual. | |
virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
Returns a type descriptor about this object. | |
Standard_Boolean | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
Returns a true value if this is an instance of Type. | |
Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
Returns a true value if this is an instance of TypeName. | |
Standard_Boolean | IsKind (const opencascade::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. | |
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. | |
Standard_Transient * | This () const |
Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. | |
Standard_Integer | GetRefCount () const noexcept |
Get the reference counter of this object. | |
void | IncrementRefCounter () noexcept |
Increments the reference counter of this object. | |
Standard_Integer | DecrementRefCounter () noexcept |
Decrements the reference counter of this object; returns the decremented value. | |
virtual void | Delete () const |
Memory deallocator for transient classes. | |
Additional Inherited Members | |
Public Types inherited from Standard_Transient | |
typedef void | base_type |
Returns a type descriptor about this object. | |
Static Public Member Functions inherited from Standard_Transient | |
static constexpr const char * | get_type_name () |
Returns a type descriptor about this object. | |
static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
Returns type descriptor of Standard_Transient class. | |
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).
const TCollection_AsciiString & Expr_NamedExpression::GetName | ( | ) | const |
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overridevirtual |
Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing.
Implements Expr_GeneralExpression.
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overridevirtual |
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 | ) |
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overridevirtual |
returns a string representing <me> in a readable way.
Implements Expr_GeneralExpression.