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 improve-tests

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eventbinding.cs

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using System;

namespace Python.Runtime

{

//========================================================================

// Implements a Python event binding type, similar to a method binding.

//========================================================================

internal class EventBinding : ExtensionType

{

EventObject e;

IntPtr target;

public EventBinding(EventObject e, IntPtr target) : base()

{

Runtime.XIncref(target);

this.target = target;

this.e = e;

}

//====================================================================

// EventBinding += operator implementation.

//====================================================================

public static IntPtr nb_inplace_add(IntPtr ob, IntPtr arg)

{

EventBinding self = (EventBinding)GetManagedObject(ob);

if (Runtime.PyCallable_Check(arg) < 1)

{

Exceptions.SetError(Exceptions.TypeError,

"event handlers must be callable"

);

return IntPtr.Zero;

}

if (!self.e.AddEventHandler(self.target, arg))

{

return IntPtr.Zero;

}

Runtime.XIncref(self.pyHandle);

return self.pyHandle;

}

//====================================================================

// EventBinding -= operator implementation.

//====================================================================

public static IntPtr nb_inplace_subtract(IntPtr ob, IntPtr arg)

{

EventBinding self = (EventBinding)GetManagedObject(ob);

if (Runtime.PyCallable_Check(arg) < 1)

{

Exceptions.SetError(Exceptions.TypeError,

"invalid event handler"

);

return IntPtr.Zero;

}

if (!self.e.RemoveEventHandler(self.target, arg))

{

return IntPtr.Zero;

}

Runtime.XIncref(self.pyHandle);

return self.pyHandle;

}

//====================================================================

// EventBinding __hash__ implementation.

//====================================================================

public static IntPtr tp_hash(IntPtr ob)

{

EventBinding self = (EventBinding)GetManagedObject(ob);

long x = 0;

long y = 0;

if (self.target != IntPtr.Zero)

{

x = Runtime.PyObject_Hash(self.target).ToInt64();

if (x == -1)

{

return new IntPtr(-1);

}

}

y = Runtime.PyObject_Hash(self.e.pyHandle).ToInt64();

if (y == -1)

{

return new IntPtr(-1);

}

x ^= y;

if (x == -1)

{

x = -1;

}

return new IntPtr(x);

}

//====================================================================

// EventBinding __repr__ implementation.

//====================================================================

public static IntPtr tp_repr(IntPtr ob)

{

EventBinding self = (EventBinding)GetManagedObject(ob);

string type = (self.target == IntPtr.Zero) ? "unbound" : "bound";

string s = String.Format("<{0} event '{1}'>", type, self.e.name);

return Runtime.PyString_FromString(s);

}

//====================================================================

// EventBinding dealloc implementation.

//====================================================================

public static new void tp_dealloc(IntPtr ob)

{

EventBinding self = (EventBinding)GetManagedObject(ob);

Runtime.XDecref(self.target);

ExtensionType.FinalizeObject(self);

}

}

}