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67 lines
2.0 KiB
67 lines
2.0 KiB
/* InstructionBlock (c) 1998 Jochen Hoenicke
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*
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* You may distribute under the terms of the GNU General Public License.
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*
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* IN NO EVENT SHALL JOCHEN HOENICKE BE LIABLE TO ANY PARTY FOR DIRECT,
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* INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
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* THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF JOCHEN HOENICKE
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* HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* JOCHEN HOENICKE SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
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* BASIS, AND JOCHEN HOENICKE HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
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* SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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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.*;
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/**
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* This is the structured block for atomic instructions.
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*/
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public class InstructionBlock extends StructuredBlock
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implements InstructionContainer {
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Instruction instr;
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public InstructionBlock(Instruction instr) {
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this.instr = instr;
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if (instr instanceof LocalVarOperator) {
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LocalVarOperator varOp = (LocalVarOperator) instr;
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if (varOp.isRead()) {
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in.addElement(varOp.getLocalInfo());
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}
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out.addElement(varOp.getLocalInfo());
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}
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}
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public InstructionBlock(Instruction instr, Jump jump) {
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this(instr);
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setJump(jump);
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}
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/**
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* Get the underlying instruction.
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* @return the underlying instruction.
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*/
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public Instruction getInstruction() {
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return instr;
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}
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/**
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* Change the underlying instruction.
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* @param instr the new underlying instruction.
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*/
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public void setInstruction(Instruction instr) {
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this.instr = instr;
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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 (instr.getType() != MyType.tVoid)
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writer.print("push ");
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writer.println(instr.toString()+";");
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}
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}
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