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pythonnet/src/runtime/Types/ClrObject.cs at v3.1.0 · pythonnet/pythonnet · GitHub
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using
System
;
using
System
.
Collections
.
Generic
;
using
System
.
Diagnostics
;
using
System
.
Runtime
.
InteropServices
;
namespace
Python
.
Runtime
{
[
Serializable
]
[
DebuggerDisplay
(
"clrO: {inst}"
)
]
internal
sealed
class
CLRObject
:
ManagedType
{
internal
readonly
object
inst
;
internal
static
bool
creationBlocked
=
false
;
// "borrowed" references
internal
static
readonly
HashSet
<
IntPtr
>
reflectedObjects
=
new
(
)
;
static
NewReference
Create
(
object
ob
,
BorrowedReference
tp
)
{
if
(
creationBlocked
)
throw
new
InvalidOperationException
(
"Reflected objects should not be created anymore."
)
;
Debug
.
Assert
(
tp
!=
null
)
;
var
py
=
Runtime
.
PyType_GenericAlloc
(
tp
,
0
)
;
var
self
=
new
CLRObject
(
ob
)
;
GCHandle
gc
=
GCHandle
.
Alloc
(
self
)
;
InitGCHandle
(
py
.
Borrow
(
)
,
type
:
tp
,
gc
)
;
bool
isNew
=
reflectedObjects
.
Add
(
py
.
DangerousGetAddress
(
)
)
;
Debug
.
Assert
(
isNew
)
;
// Fix the BaseException args (and __cause__ in case of Python 3)
// slot if wrapping a CLR exception
if
(
ob
is
Exception
e
)
Exceptions
.
SetArgsAndCause
(
py
.
Borrow
(
)
,
e
)
;
return
py
;
}
CLRObject
(
object
inst
)
{
this
.
inst
=
inst
;
}
internal
static
NewReference
GetReference
(
object
ob
,
BorrowedReference
pyType
)
=>
Create
(
ob
,
pyType
)
;
internal
static
NewReference
GetReference
(
object
ob
,
Type
type
)
{
BorrowedReference
cc
=
ClassManager
.
GetClass
(
type
)
;
return
Create
(
ob
,
cc
)
;
}
internal
static
NewReference
GetReference
(
object
ob
)
{
BorrowedReference
cc
=
ClassManager
.
GetClass
(
ob
.
GetType
(
)
)
;
return
Create
(
ob
,
cc
)
;
}
internal
static
void
Restore
(
object
ob
,
BorrowedReference
pyHandle
,
Dictionary
<
string
,
object
?
>
context
)
{
var
co
=
new
CLRObject
(
ob
)
;
co
.
OnLoad
(
pyHandle
,
context
)
;
}
protected
override
void
OnLoad
(
BorrowedReference
ob
,
Dictionary
<
string
,
object
?
>
?
context
)
{
if
(
creationBlocked
)
throw
new
InvalidOperationException
(
"Reflected objects should not be loaded anymore."
)
;
base
.
OnLoad
(
ob
,
context
)
;
GCHandle
gc
=
GCHandle
.
Alloc
(
this
)
;
SetGCHandle
(
ob
,
gc
)
;
bool
isNew
=
reflectedObjects
.
Add
(
ob
.
DangerousGetAddress
(
)
)
;
Debug
.
Assert
(
isNew
)
;
}
}
}
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