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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) 2002-2004 Anders Bengtsson <> Copyright (C) 2001-2004 Jan Arne Petersen <> Copyright (C) 2002 Benoit Cerrina <> Copyright (C) 2004-2007 Thomas E Enebo <> Copyright (C) 2004 Stefan Matthias Aust <> 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;
Internal live representation of a block ({...} or do ... end).
 public abstract class MethodBlock extends ContextAwareBlockBody {
     private final RubyMethod method;
     private final String filename;
     private final int line;
     public static Block createMethodBlock(ThreadContext contextIRubyObject selfDynamicScope dynamicScopeMethodBlock body) {
         RubyMethod method = body.method;
         RubyModule module = method.getMethod().getImplementationClass();
         Frame frame = new Frame();
         Binding binding = new Binding(
                 new BacktraceElement(method.getMethodName(), body.getFile(), body.getLine()));
         return new Block(bodybinding);
     public MethodBlock(RubyMethod methodStaticScope staticScope) {
         super(staticScope, Arity.createArity((intmethod.arity().getLongValue()), .);
         this. = method;
         String filename = method.getFilename();
         if (filename == nullfilename = "(method)";
         this. = filename;
         this. = method.getLine();
     public abstract IRubyObject callback(IRubyObject valueIRubyObject methodIRubyObject selfBlock block);
     public IRubyObject call(ThreadContext contextIRubyObject[] argsBinding bindingBlock.Type type) {
         return yield(contextnewArgsArrayFromArgsWithoutUnbox(argscontext), nullnulltruebindingtype.);
     public IRubyObject call(ThreadContext contextIRubyObject[] argsBinding bindingBlock.Type typeBlock block) {
         return yield(contextnewArgsArrayFromArgsWithoutUnbox(argscontext), nullnulltruebindingtypeblock);
     protected Frame pre(ThreadContext contextRubyModule klassBinding binding) {
         return context.preYieldNoScope(bindingklass);
     protected void post(ThreadContext contextBinding bindingVisibility visibilityFrame lastFrame) {
    public IRubyObject yieldSpecific(ThreadContext contextBinding bindingBlock.Type type) {
        return yield(contextnullbindingtype);
    public IRubyObject yieldSpecific(ThreadContext contextIRubyObject arg0Binding bindingBlock.Type type) {
        return yield(contextarg0bindingtype);
    public IRubyObject yieldSpecific(ThreadContext contextIRubyObject arg0IRubyObject arg1Binding bindingBlock.Type type) {
        return yield(contextcontext.runtime.newArrayNoCopyLight(arg0arg1), nullnulltruebindingtype);
    public IRubyObject yieldSpecific(ThreadContext contextIRubyObject arg0IRubyObject arg1IRubyObject arg2Binding bindingBlock.Type type) {
        return yield(contextcontext.runtime.newArrayNoCopyLight(arg0arg1arg2), nullnulltruebindingtype);
    public IRubyObject yield(ThreadContext contextIRubyObject valueBinding bindingBlock.Type type) {
        return yield(contextvaluenullnullfalsebindingtype);
    public IRubyObject yield(ThreadContext contextIRubyObject valueBinding bindingBlock.Type typeBlock block) {
        return yield(contextvaluenullnullfalsebindingtypeblock);
    public IRubyObject yield(ThreadContext contextIRubyObject valueIRubyObject self,
                             RubyModule klassboolean aValueBinding bindingBlock.Type type) {
        return yield(contextvalueselfklassaValuebindingtype.);

Yield to this block, usually passed to the current call.

context represents the current thread-specific data
value The value to yield, either a single value or an array of values
self The current self
aValue Should value be arrayified or not?
    public IRubyObject yield(ThreadContext contextIRubyObject valueIRubyObject self
            RubyModule klassboolean aValueBinding bindingBlock.Type typeBlock block) {
        if (klass == null) {
            self = binding.getSelf();
        Frame lastFrame = pre(contextklassbinding);
        try {
            // This while loop is for restarting the block call in case a 'redo' fires.
            while (true) {
                try {
                    return callback(valueselfblock);
                } catch (JumpException.RedoJump rj) {
                    // do nothing, allow loop to redo
                } catch (JumpException.BreakJump bj) {
//                    if (bj.getTarget() == 0) {
//                        bj.setTarget(this);
//                    }                  
                    throw bj;
        } catch (JumpException.NextJump nj) {
            // A 'next' is like a local return from the block, ending this call or yield.
            return Helpers.handleNextJump(contextnj);
        } finally {
    public String getFile() {
        return ;
    public int getLine() {
        return ;
    public RubyMethod getMethod() {
        return ;
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