PyBuiltinMethodSet.java

package org.python.core;

public class PyBuiltinMethodSet extends PyBuiltinFunctionSet implements Cloneable {

    public PyBuiltinMethodSet(String name, int index, int minargs, int maxargs, String doc, Class type) {
        super(name, index, minargs, maxargs, doc);
        this.type = type;
    }

    public PyObject __get__(PyObject obj, PyObject type) {
        if (obj != null) {
            if (this.type.isAssignableFrom(obj.getClass())) {
                return bind(obj);
            } else {
                throw Py.TypeError("descriptor '" + info.getName() + "' for '" + PyType.fromClass(this.type)
                        + "' objects doesn't apply to '" + obj.getType() + "' object");
            }
        }
        return this;
    }

    public PyBuiltinFunction bind(PyObject bindTo) {
        if (__self__ == Py.None) {
            PyBuiltinMethodSet bindable;
            try {
                bindable = (PyBuiltinMethodSet) clone();
            } catch (CloneNotSupportedException e) {
                throw new RuntimeException(
                        "Didn't expect PyBuiltinMethodSet to throw CloneNotSupported since it implements Cloneable: "
                                + e);
            }
            bindable.__self__ = bindTo;
            return bindable;
        }
        return this;
    }

    public PyObject getSelf() {
        return __self__;
    }

    public String toString() {
        return "<built-in method " + info.getName() + ">";
    }

    private Class type;

    protected PyObject __self__ = Py.None;
}