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BEGIN LICENSE BLOCK ***** Version: CPL 1.0/GPL 2.0/LGPL 2.1 The contents of this file are subject to the Common Public License Version 1.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. Alternatively, the contents of this file may be used under the terms of either of the GNU General Public License Version 2 or later (the "GPL"), or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), in which case the provisions of the GPL or the LGPL are applicable instead of those above. If you wish to allow use of your version of this file only under the terms of either the GPL or the LGPL, and not to allow others to use your version of this file under the terms of the CPL, indicate your decision by deleting the provisions above and replace them with the notice and other provisions required by the GPL or the LGPL. If you do not delete the provisions above, a recipient may use your version of this file under the terms of any one of the CPL, the GPL or the LGPL. END LICENSE BLOCK ***
package org.jruby;
import static org.jruby.runtime.Visibility.*;
@JRubyClass(name = "Enumerator::Yielder")
public class RubyYielder extends RubyObject {
    private RubyProc proc
    public static RubyClass createYielderClass(Ruby runtime) {
        RubyClass yielderc = runtime.defineClassUnder("Yielder"runtime.getObject(), runtime.getEnumerator());
        yielderc.index = .;
        yielderc.kindOf = new RubyModule.KindOf() {
            public boolean isKindOf(IRubyObject objRubyModule type) {
                return obj instanceof RubyYielder;
        return yielderc;
    private static ObjectAllocator YIELDER_ALLOCATOR = new ObjectAllocator() {
        public IRubyObject allocate(Ruby runtimeRubyClass klass) {
            return new RubyYielder(runtimeklass);
    public RubyYielder(Ruby runtimeRubyClass klass) {
    public RubyYielder(Ruby runtime) {
    private void checkInit() {
        if ( == nullthrow getRuntime().newArgumentError("uninitializer yielder");
    @JRubyMethod(visibility = )
    public IRubyObject initialize(ThreadContext contextBlock block) {
        Ruby runtime = context.runtime;
        if (!block.isGiven()) throw runtime.newLocalJumpErrorNoBlock();
         = runtime.newProc(..block);
        return this;
    @JRubyMethod(rest = true)
    public IRubyObject yield(ThreadContext contextIRubyObject[]args) {
        if (context.runtime.is1_9()) {
            return .call19(contextargs.);
        } else {
            return .call(contextargs);
    @JRubyMethod(name = "<<", rest = true)
    public IRubyObject op_lshift(ThreadContext contextIRubyObject[]args) {
        return this;
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