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1 | // Created on: 1991-01-10 |
2 | // Created by: Arnaud BOUZY |
3 | // Copyright (c) 1991-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _Expr_BinaryExpression_HeaderFile |
18 | #define _Expr_BinaryExpression_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Expr_GeneralExpression.hxx> |
24 | #include <Standard_Integer.hxx> |
25 | #include <Standard_Boolean.hxx> |
26 | class Expr_GeneralExpression; |
27 | class Standard_OutOfRange; |
28 | class Standard_NumericError; |
29 | class Expr_InvalidOperand; |
30 | class Expr_NamedUnknown; |
31 | |
32 | |
33 | class Expr_BinaryExpression; |
34 | DEFINE_STANDARD_HANDLE(Expr_BinaryExpression, Expr_GeneralExpression) |
35 | |
36 | //! Defines all binary expressions. The order of the two |
37 | //! operands is significant. |
38 | class Expr_BinaryExpression : public Expr_GeneralExpression |
39 | { |
40 | |
41 | public: |
42 | |
43 | |
44 | const Handle(Expr_GeneralExpression)& FirstOperand() const; |
45 | |
46 | const Handle(Expr_GeneralExpression)& SecondOperand() const; |
47 | |
48 | //! Sets first operand of <me> |
49 | //! Raises InvalidOperand if exp = me |
50 | Standard_EXPORT void SetFirstOperand (const Handle(Expr_GeneralExpression)& exp); |
51 | |
52 | //! Sets second operand of <me> |
53 | //! Raises InvalidOperand if <exp> contains <me>. |
54 | Standard_EXPORT void SetSecondOperand (const Handle(Expr_GeneralExpression)& exp); |
55 | |
56 | //! returns the number of sub-expressions contained |
57 | //! in <me> ( >= 0) |
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58 | Standard_EXPORT Standard_Integer NbSubExpressions() const Standard_OVERRIDE; |
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59 | |
60 | //! returns the <I>-th sub-expression of <me> |
61 | //! raises OutOfRange if <I> > NbSubExpressions(me) |
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62 | Standard_EXPORT const Handle(Expr_GeneralExpression)& SubExpression (const Standard_Integer I) const Standard_OVERRIDE; |
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63 | |
64 | //! Does <me> contain NamedUnknown ? |
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65 | Standard_EXPORT Standard_Boolean ContainsUnknowns() const Standard_OVERRIDE; |
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66 | |
67 | //! Tests if <me> contains <exp>. |
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68 | Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)& exp) const Standard_OVERRIDE; |
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69 | |
70 | //! Replaces all occurences of <var> with <with> in <me>. |
71 | //! Raises InvalidOperand if <with> contains <me>. |
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72 | Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with) Standard_OVERRIDE; |
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73 | |
74 | //! Returns a GeneralExpression after replacement of |
75 | //! NamedUnknowns by an associated expression and after |
76 | //! values computation. |
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77 | Standard_EXPORT Handle(Expr_GeneralExpression) Simplified() const Standard_OVERRIDE; |
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78 | |
79 | |
80 | |
81 | |
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82 | DEFINE_STANDARD_RTTIEXT(Expr_BinaryExpression,Expr_GeneralExpression) |
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83 | |
84 | protected: |
85 | |
86 | |
87 | //! Sets first operand of <me> |
88 | Standard_EXPORT void CreateFirstOperand (const Handle(Expr_GeneralExpression)& exp); |
89 | |
90 | //! Sets second operand of <me> |
91 | //! Raises InvalidOperand if <exp> contains <me>. |
92 | Standard_EXPORT void CreateSecondOperand (const Handle(Expr_GeneralExpression)& exp); |
93 | |
94 | |
95 | |
96 | private: |
97 | |
98 | |
99 | Handle(Expr_GeneralExpression) myFirstOperand; |
100 | Handle(Expr_GeneralExpression) mySecondOperand; |
101 | |
102 | |
103 | }; |
104 | |
105 | |
106 | #include <Expr_BinaryExpression.lxx> |
107 | |
108 | |
109 | |
110 | |
111 | |
112 | #endif // _Expr_BinaryExpression_HeaderFile |