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PyDict.cs
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using
System
;
using
System
.
Runtime
.
Serialization
;
namespace
Python
.
Runtime
{
/// <summary>
/// Represents a Python dictionary object. See the documentation at
/// PY2: https://docs.python.org/2/c-api/dict.html
/// PY3: https://docs.python.org/3/c-api/dict.html
/// for details.
/// </summary>
[
Serializable
]
public
class
PyDict
:
PyIterable
{
internal
PyDict
(
BorrowedReference
reference
)
:
base
(
reference
)
{
}
internal
PyDict
(
in
StolenReference
reference
)
:
base
(
reference
)
{
}
/// <summary>
/// Creates a new Python dictionary object.
/// </summary>
public
PyDict
(
)
:
base
(
Runtime
.
PyDict_New
(
)
.
StealOrThrow
(
)
)
{
}
/// <summary>
/// Wraps existing dictionary object.
/// </summary>
/// <exception cref="ArgumentException">
/// Thrown if the given object is not a Python dictionary object
/// </exception>
public
PyDict
(
PyObject
o
)
:
base
(
o
is
null
?
throw
new
ArgumentNullException
(
nameof
(
o
)
)
:
o
.
Reference
)
{
if
(
!
IsDictType
(
o
)
)
{
throw
new
ArgumentException
(
"object is not a dict"
)
;
}
}
protected
PyDict
(
SerializationInfo
info
,
StreamingContext
context
)
:
base
(
info
,
context
)
{
}
/// <summary>
/// IsDictType Method
/// </summary>
/// <remarks>
/// Returns true if the given object is a Python dictionary.
/// </remarks>
public
static
bool
IsDictType
(
PyObject
value
)
{
if
(
value
is
null
)
throw
new
ArgumentNullException
(
nameof
(
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
)
{
if
(
key
is
null
)
throw
new
ArgumentNullException
(
nameof
(
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
)
{
using
var
str
=
new
PyString
(
key
)
;
return
HasKey
(
str
)
;
}
/// <summary>
/// Keys Method
/// </summary>
/// <remarks>
/// Returns a sequence containing the keys of the dictionary.
/// </remarks>
public
PyIterable
Keys
(
)
{
using
var
items
=
Runtime
.
PyDict_Keys
(
Reference
)
;
if
(
items
.
IsNull
(
)
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
return
new
PyIterable
(
items
.
Steal
(
)
)
;
}
/// <summary>
/// Values Method
/// </summary>
/// <remarks>
/// Returns a sequence containing the values of the dictionary.
/// </remarks>
public
PyIterable
Values
(
)
{
using
var
items
=
Runtime
.
PyDict_Values
(
obj
)
;
return
new
PyIterable
(
items
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// Items Method
/// </summary>
/// <remarks>
/// Returns a sequence containing the items of the dictionary.
/// </remarks>
public
PyIterable
Items
(
)
{
using
var
items
=
Runtime
.
PyDict_Items
(
this
.
Reference
)
;
if
(
items
.
IsNull
(
)
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
return
new
PyIterable
(
items
.
Steal
(
)
)
;
}
/// <summary>
/// Copy Method
/// </summary>
/// <remarks>
/// Returns a copy of the dictionary.
/// </remarks>
public
PyDict
Copy
(
)
{
var
op
=
Runtime
.
PyDict_Copy
(
Reference
)
;
if
(
op
.
IsNull
(
)
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
return
new
PyDict
(
op
.
Steal
(
)
)
;
}
/// <summary>
/// Update Method
/// </summary>
/// <remarks>
/// Update the dictionary from another dictionary.
/// </remarks>
public
void
Update
(
PyObject
other
)
{
if
(
other
is
null
)
throw
new
ArgumentNullException
(
nameof
(
other
)
)
;
int
result
=
Runtime
.
PyDict_Update
(
Reference
,
other
.
Reference
)
;
if
(
result
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// Clear Method
/// </summary>
/// <remarks>
/// Clears the dictionary.
/// </remarks>
public
void
Clear
(
)
{
Runtime
.
PyDict_Clear
(
obj
)
;
}
public
override
int
GetHashCode
(
)
=>
rawPtr
.
GetHashCode
(
)
;
public
override
bool
Equals
(
PyObject
?
other
)
{
if
(
other
is
null
)
return
false
;
if
(
obj
==
other
.
obj
)
return
true
;
if
(
other
is
PyDict
||
IsDictType
(
other
)
)
return
base
.
Equals
(
other
)
;
return
false
;
}
}
}
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