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BEGIN LICENSE BLOCK ***** Version: EPL 1.0/GPL 2.0/LGPL 2.1 The contents of this file are subject to the Eclipse 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. Copyright (C) 2007 Thomas E Enebo <> 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 EPL, 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 EPL, the GPL or the LGPL. END LICENSE BLOCK ***
package org.jruby.runtime;
Represents the live state of a for or END construct in Ruby. This is different from an ordinary block in that it does not have its own scoped variables. It leeches those from the next outer scope. Because of this we do not set up, clone, nor tear down scope-related stuff. Also because of this we do not need to clone the block since it state does not change.
public class SharedScopeBlock extends InterpretedBlock {
    protected SharedScopeBlock(IterNode iterNode) {
    public static Block newInterpretedSharedScopeClosure(ThreadContext contextIterNode iterNodeDynamicScope dynamicScopeIRubyObject self) {
        Binding binding = context.currentBinding(selfdynamicScope);
        InterpretedBlock body = new SharedScopeBlock(iterNode);
        return new Block(bodybinding);
    protected Frame pre(ThreadContext contextRubyModule klassBinding binding) {
        return context.preForBlock(bindingklass);
    public IRubyObject call(ThreadContext contextIRubyObject[] argsIRubyObject replacementSelfBinding bindingBlock.Type type) {
        return yield(contextnewArgsArrayFromArgsWithoutUnbox(argscontext), nullnulltruebindingtype);
    public Block cloneBlock(Binding binding) {
        return new Block(thisbinding);
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