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pythonnet/pythonnet/src/runtime/pytuple.cs at develop · davidanthoff/pythonnet · GitHub
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runtime
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pytuple.cs
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pythonnet
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pythonnet
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src
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runtime
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pytuple.cs
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// ==========================================================================
// This software is subject to the provisions of the Zope Public License,
// Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
// FOR A PARTICULAR PURPOSE.
// ==========================================================================
using
System
;
namespace
Python
.
Runtime
{
/// <summary>
/// Represents a Python tuple object. See the documentation at
/// http://www.python.org/doc/current/api/tupleObjects.html for details.
/// </summary>
public
class
PyTuple
:
PySequence
{
/// <summary>
/// PyTuple Constructor
/// </summary>
///
/// <remarks>
/// Creates a new PyTuple from an existing object reference. Note
/// that the instance assumes ownership of the object reference.
/// The object reference is not checked for type-correctness.
/// </remarks>
public
PyTuple
(
IntPtr
ptr
)
:
base
(
ptr
)
{
}
/// <summary>
/// PyTuple Constructor
/// </summary>
///
/// <remarks>
/// Copy constructor - obtain a PyTuple from a generic PyObject. An
/// ArgumentException will be thrown if the given object is not a
/// Python tuple object.
/// </remarks>
public
PyTuple
(
PyObject
o
)
:
base
(
)
{
if
(
!
IsTupleType
(
o
)
)
{
throw
new
ArgumentException
(
"object is not a tuple"
)
;
}
Runtime
.
Incref
(
o
.
obj
)
;
obj
=
o
.
obj
;
}
/// <summary>
/// PyTuple Constructor
/// </summary>
///
/// <remarks>
/// Creates a new empty PyTuple.
/// </remarks>
public
PyTuple
(
)
:
base
(
)
{
obj
=
Runtime
.
PyTuple_New
(
0
)
;
if
(
obj
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
}
/// <summary>
/// PyTuple Constructor
/// </summary>
///
/// <remarks>
/// Creates a new PyTuple from an array of PyObject instances.
/// </remarks>
public
PyTuple
(
PyObject
[
]
items
)
:
base
(
)
{
int
count
=
items
.
Length
;
obj
=
Runtime
.
PyTuple_New
(
count
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
IntPtr
ptr
=
items
[
i
]
.
obj
;
Runtime
.
Incref
(
ptr
)
;
int
r
=
Runtime
.
PyTuple_SetItem
(
obj
,
i
,
ptr
)
;
if
(
r
<
0
)
{
throw
new
PythonException
(
)
;
}
}
}
/// <summary>
/// IsTupleType Method
/// </summary>
///
/// <remarks>
/// Returns true if the given object is a Python tuple.
/// </remarks>
public
static
bool
IsTupleType
(
PyObject
value
)
{
return
Runtime
.
PyTuple_Check
(
value
.
obj
)
;
}
/// <summary>
/// AsTuple Method
/// </summary>
///
/// <remarks>
/// Convert a Python object to a Python tuple if possible, raising
/// a PythonException if the conversion is not possible. This is
/// equivalent to the Python expression "tuple(object)".
/// </remarks>
public
static
PyTuple
AsTuple
(
PyObject
value
)
{
IntPtr
op
=
Runtime
.
PySequence_Tuple
(
value
.
obj
)
;
if
(
op
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
return
new
PyTuple
(
op
)
;
}
}
}
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