C# Class Python.Runtime.ConstructorBinding

Implements a Python type that wraps a CLR ctor call. Constructor objects support a .Overloads[] syntax to allow explicit ctor overload selection.

ClassManager stores a ConstructorBinding instance in the class's __dict__['Overloads'] SomeType.Overloads[Type, ...] works like this: 1) Python retreives the Overloads attribute from this ClassObject's dictionary normally and finds a non-null tp_descr_get slot which is called by the interpreter and returns an IncRef()ed pyHandle to itself. 2) The ConstructorBinding object handles the [] syntax in its mp_subscript by matching the Type object parameters to a contructor overload using Type.GetConstructor() [NOTE: I don't know why method overloads are not searched the same way.] and creating the BoundContructor oject which contains ContructorInfo object. 3) In tp_call, if ctorInfo is not null, ctorBinder.InvokeRaw() is called.

Inheritance: ExtensionType

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Méthodes publiques

Méthode	Description
ConstructorBinding ( Type type, IntPtr pyTypeHndl, ConstructorBinder ctorBinder ) : System
mp_subscript ( IntPtr op, IntPtr key ) : IntPtr	ConstructorBinding.GetItem(PyObject o, PyObject key) Return element of o corresponding to the object key or NULL on failure. This is the equivalent of the Python expression o[key].
tp_dealloc ( IntPtr ob ) : void
tp_descr_get ( IntPtr op, IntPtr instance, IntPtr owner ) : IntPtr	Descriptor __get__ implementation. Implements a Python type that wraps a CLR ctor call that requires the use of a .Overloads[pyTypeOrType...] syntax to allow explicit ctor overload selection. Python 2.6.5 docs: object.__get__(self, instance, owner) Called to get the attribute of the owner class (class attribute access) or of an instance of that class (instance attribute access). owner is always the owner class, while instance is the instance that the attribute was accessed through, or None when the attribute is accessed through the owner. This method should return the (computed) attribute value or raise an AttributeError exception.
tp_repr ( IntPtr ob ) : IntPtr

Method Details

ConstructorBinding() public méthode

public ConstructorBinding ( Type type, IntPtr pyTypeHndl, ConstructorBinder ctorBinder ) : System
type	System.Type
pyTypeHndl	System.IntPtr
ctorBinder	ConstructorBinder
Résultat	System

mp_subscript() public static méthode

ConstructorBinding.GetItem(PyObject *o, PyObject *key) Return element of o corresponding to the object key or NULL on failure. This is the equivalent of the Python expression o[key].

public static mp_subscript ( IntPtr op, IntPtr key ) : IntPtr
op	System.IntPtr
key	System.IntPtr
Résultat	System.IntPtr

tp_dealloc() public static méthode

public static tp_dealloc ( IntPtr ob ) : void
ob	System.IntPtr
Résultat	void

tp_descr_get() public static méthode

Descriptor __get__ implementation. Implements a Python type that wraps a CLR ctor call that requires the use of a .Overloads[pyTypeOrType...] syntax to allow explicit ctor overload selection.

Python 2.6.5 docs: object.__get__(self, instance, owner) Called to get the attribute of the owner class (class attribute access) or of an instance of that class (instance attribute access). owner is always the owner class, while instance is the instance that the attribute was accessed through, or None when the attribute is accessed through the owner. This method should return the (computed) attribute value or raise an AttributeError exception.

public static tp_descr_get ( IntPtr op, IntPtr instance, IntPtr owner ) : IntPtr
op	System.IntPtr	PyObject* to a Constructors wrapper
instance	System.IntPtr	the instance that the attribute was accessed through, /// or None when the attribute is accessed through the owner
owner	System.IntPtr	always the owner class
Résultat	System.IntPtr

tp_repr() public static méthode

public static tp_repr ( IntPtr ob ) : IntPtr
ob	System.IntPtr
Résultat	System.IntPtr