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55 lines
1.9 KiB
55 lines
1.9 KiB
/* CreateForInitializer Copyright (C) 1998-2002 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 Lesser 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 Lesser General Public License
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* along with this program; see the file COPYING.LESSER. 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 net.sf.jode.flow;
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import net.sf.jode.GlobalOptions;
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import net.sf.jode.expr.*;
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public class CreateForInitializer {
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/**
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* This combines an variable initializer into a for statement
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* @param forBlock the for block
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* @param last the lastModified of the flow block.
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*/
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public static boolean transform(LoopBlock forBlock, StructuredBlock last) {
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if (!(last.outer instanceof SequentialBlock))
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return false;
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SequentialBlock sequBlock = (SequentialBlock) last.outer;
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if (!(sequBlock.subBlocks[0] instanceof InstructionBlock))
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return false;
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InstructionBlock init = (InstructionBlock) sequBlock.subBlocks[0];
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if (!init.getInstruction().isVoid()
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|| !(init.getInstruction() instanceof CombineableOperator)
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|| !forBlock.conditionMatches((CombineableOperator)
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init.getInstruction()))
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return false;
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if (GlobalOptions.verboseLevel > 0)
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GlobalOptions.err.print('f');
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forBlock.setInit((InstructionBlock) sequBlock.subBlocks[0]);
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return true;
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}
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}
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