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runtime
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pydict.cs
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runtime
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pydict.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
;
using
System
.
Runtime
.
InteropServices
;
namespace
Python
.
Runtime
{
/// <summary>
/// Represents a Python dictionary object. See the documentation at
/// http://www.python.org/doc/current/api/dictObjects.html for details.
/// </summary>
public
class
PyDict
:
PyObject
{
/// <summary>
/// PyDict Constructor
/// </summary>
///
/// <remarks>
/// Creates a new PyDict 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
PyDict
(
IntPtr
ptr
)
:
base
(
ptr
)
{
}
/// <summary>
/// PyDict Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python dictionary object.
/// </remarks>
public
PyDict
(
)
:
base
(
)
{
obj
=
Runtime
.
PyDict_New
(
)
;
if
(
obj
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
}
/// <summary>
/// PyDict Constructor
/// </summary>
///
/// <remarks>
/// Copy constructor - obtain a PyDict from a generic PyObject. An
/// ArgumentException will be thrown if the given object is not a
/// Python dictionary object.
/// </remarks>
public
PyDict
(
PyObject
o
)
:
base
(
)
{
if
(
!
IsDictType
(
o
)
)
{
throw
new
ArgumentException
(
"object is not a dict"
)
;
}
Runtime
.
Incref
(
o
.
obj
)
;
obj
=
o
.
obj
;
}
/// <summary>
/// IsDictType Method
/// </summary>
///
/// <remarks>
/// Returns true if the given object is a Python dictionary.
/// </remarks>
public
static
bool
IsDictType
(
PyObject
value
)
{
return
Runtime
.
PyDict_Check
(
value
.
obj
)
;
}
/// <summary>
/// HasKey Method
/// </summary>
///
/// <remarks>
/// Returns true if the object key appears in the dictionary.
/// </remarks>
public
bool
HasKey
(
PyObject
key
)
{
return
(
Runtime
.
PyMapping_HasKey
(
obj
,
key
.
obj
)
!=
0
)
;
}
/// <summary>
/// HasKey Method
/// </summary>
///
/// <remarks>
/// Returns true if the string key appears in the dictionary.
/// </remarks>
public
bool
HasKey
(
string
key
)
{
return
HasKey
(
new
PyString
(
key
)
)
;
}
/// <summary>
/// Keys Method
/// </summary>
///
/// <remarks>
/// Returns a sequence containing the keys of the dictionary.
/// </remarks>
public
PyObject
Keys
(
)
{
IntPtr
items
=
Runtime
.
PyDict_Keys
(
obj
)
;
if
(
items
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
return
new
PyObject
(
items
)
;
}
/// <summary>
/// Values Method
/// </summary>
///
/// <remarks>
/// Returns a sequence containing the values of the dictionary.
/// </remarks>
public
PyObject
Values
(
)
{
IntPtr
items
=
Runtime
.
PyDict_Values
(
obj
)
;
if
(
items
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
return
new
PyObject
(
items
)
;
}
/// <summary>
/// Items Method
/// </summary>
///
/// <remarks>
/// Returns a sequence containing the items of the dictionary.
/// </remarks>
public
PyObject
Items
(
)
{
IntPtr
items
=
Runtime
.
PyDict_Items
(
obj
)
;
if
(
items
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
return
new
PyObject
(
items
)
;
}
/// <summary>
/// Copy Method
/// </summary>
///
/// <remarks>
/// Returns a copy of the dictionary.
/// </remarks>
public
PyDict
Copy
(
)
{
IntPtr
op
=
Runtime
.
PyDict_Copy
(
obj
)
;
if
(
op
==
IntPtr
.
Zero
)
{
throw
new
PythonException
(
)
;
}
return
new
PyDict
(
op
)
;
}
/// <summary>
/// Update Method
/// </summary>
///
/// <remarks>
/// Update the dictionary from another dictionary.
/// </remarks>
public
void
Update
(
PyObject
other
)
{
int
result
=
Runtime
.
PyDict_Update
(
obj
,
other
.
obj
)
;
if
(
result
<
0
)
{
throw
new
PythonException
(
)
;
}
}
/// <summary>
/// Clear Method
/// </summary>
///
/// <remarks>
/// Clears the dictionary.
/// </remarks>
public
void
Clear
(
)
{
Runtime
.
PyDict_Clear
(
obj
)
;
}
}
}
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