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102 lines
3.0 KiB
102 lines
3.0 KiB
/* SynchronizedBlock - Copyright (C) 1997-1998 Jochen Hoenicke.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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*/
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package jode.flow;
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import jode.LocalInfo;
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import jode.TabbedPrintWriter;
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import jode.decompiler.Expression;
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/**
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* This class represents a synchronized structured block.
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*
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* @author Jochen Hoenicke
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*/
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public class SynchronizedBlock extends StructuredBlock {
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Expression object;
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LocalInfo local;
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boolean isEntered;
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StructuredBlock bodyBlock;
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public SynchronizedBlock(LocalInfo local) {
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this.local = local;
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}
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/**
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* Sets the body block.
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*/
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public void setBodyBlock(StructuredBlock body) {
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bodyBlock = body;
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body.outer = this;
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body.setFlowBlock(flowBlock);
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}
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/**
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* Returns all sub block of this structured block.
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*/
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public StructuredBlock[] getSubBlocks() {
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return new StructuredBlock[] { bodyBlock };
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}
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/**
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* Replaces the given sub block with a new block.
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* @param oldBlock the old sub block.
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* @param newBlock the new sub block.
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* @return false, if oldBlock wasn't a direct sub block.
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*/
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public boolean replaceSubBlock(StructuredBlock oldBlock,
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StructuredBlock newBlock) {
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if (bodyBlock == oldBlock)
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bodyBlock = newBlock;
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else
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return false;
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return true;
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}
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public void dumpDeclaration(TabbedPrintWriter writer, LocalInfo local)
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throws java.io.IOException
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{
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if (local.getLocalInfo() != this.local.getLocalInfo()
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|| object == null)
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super.dumpDeclaration(writer, local);
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}
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public void dumpInstruction(TabbedPrintWriter writer)
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throws java.io.IOException
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{
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if (!isEntered)
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writer.println("MISSING MONITORENTER");
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writer.print("synchronized ("
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+ (object != null
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? object.simplify().toString()
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: local.getName()) + ")");
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writer.openBrace();
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writer.tab();
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bodyBlock.dumpSource(writer);
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writer.untab();
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writer.closeBrace();
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}
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public boolean doTransformations() {
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StructuredBlock last = flowBlock.lastModified;
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return (!isEntered && CompleteSynchronized.enter(this, last))
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|| (isEntered && object == null
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&& CompleteSynchronized.combineObject(this, last));
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}
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}
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