Package org.apache.bcel.generic

Examples of org.apache.bcel.generic.GOTO


  // Backpatch true list and restore current iterator/node
  InstructionHandle restore;
  restore = il.append(methodGen.storeCurrentNode());
  backPatchTrueList(restore);
  BranchHandle skipFalse = il.append(new GOTO(null));

  // Backpatch false list and restore current iterator/node
  restore = il.append(methodGen.storeCurrentNode());
  backPatchFalseList(restore);
  _falseList.add(il.append(new GOTO(null)));

  // True list falls through
  skipFalse.setTarget(il.append(NOP));
    }
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      // Translate left-hand side expression and produce true/false list
      _left.translateDesynthesized(classGen, methodGen);

      // This GOTO is used to skip over the code for the last test
      // in the case where the the first test succeeds
      InstructionHandle ih = il.append(new GOTO(null));

      // Translate right-hand side expression and produce true/false list
      _right.translateDesynthesized(classGen, methodGen);

      _left._trueList.backPatch(ih);
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  // Store the node counter in the field
  il.append(classGen.loadTranslet());
  il.append(SWAP);
  il.append(new PUTFIELD(fieldIndexes[_level]));
  final BranchHandle ifBlock2 = il.append(new GOTO(null));

  // Backpatch conditionals
  ifBlock1.setTarget(il.append(classGen.loadTranslet()));
  il.append(new GETFIELD(fieldIndexes[_level]));
 
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  final InstructionList il = methodGen.getInstructionList();
  if (_value) {
      il.append(NOP)// true list falls through
  }
  else {
      _falseList.add(il.append(new GOTO(null)));
  }
    }
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  il.append(DUP);
  final BranchHandle ifNull = il.append(new IFNULL(null));
  il.append(new INVOKEVIRTUAL(cpg.addMethodref(_javaClassName,
                "toString",
                "()" + STRING_SIG)));
  final BranchHandle gotobh = il.append(new GOTO(null));
  ifNull.setTarget(il.append(POP));
  il.append(new PUSH(cpg, ""));
  gotobh.setTarget(il.append(NOP));
    }
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  // Backpatch true list and restore current iterator/node
  InstructionHandle restore;
  restore = il.append(methodGen.storeCurrentNode());
  backPatchTrueList(restore);
  BranchHandle skipFalse = il.append(new GOTO(null));

  // Backpatch false list and restore current iterator/node
  restore = il.append(methodGen.storeCurrentNode());
  backPatchFalseList(restore);
  _falseList.add(il.append(new GOTO(null)));

  // True list falls through
  skipFalse.setTarget(il.append(NOP));
    }
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    public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
          BooleanType type) {
  final InstructionList il = methodGen.getInstructionList();
  FlowList falsel = translateToDesynthesized(classGen, methodGen, type);
  il.append(ICONST_1);
  final BranchHandle truec = il.append(new GOTO(null));
  falsel.backPatch(il.append(ICONST_0));
  truec.setTarget(il.append(NOP));
    }
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      // Translate left-hand side expression and produce true/false list
      _left.translateDesynthesized(classGen, methodGen);

      // This GOTO is used to skip over the code for the last test
      // in the case where the the first test succeeds
      InstructionHandle ih = il.append(new GOTO(null));

      // Translate right-hand side expression and produce true/false list
      _right.translateDesynthesized(classGen, methodGen);

      _left._trueList.backPatch(ih);
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    public void translateDesynthesized(ClassGenerator classGen,
               MethodGenerator methodGen) {
  final InstructionList il = methodGen.getInstructionList();
  final Expression exp = argument();
  exp.translateDesynthesized(classGen, methodGen);
  final BranchHandle gotoh = il.append(new GOTO(null));
  _trueList = exp._falseList;   // swap flow lists
  _falseList = exp._trueList;
  _falseList.add(gotoh);
    }
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      // The When object should be ignored completely in case it tests
      // for the support of a non-available element
      if (!when.ignore()) when.translateContents(classGen, methodGen);

      // goto exit after executing the body of when
      exitHandles.addElement(il.append(new GOTO(null)));
      if (whens.hasMoreElements() || otherwise != null) {
    nextElement = il.append(new GOTO(null));
    test.backPatchFalseList(nextElement);
      }
      else
    test.backPatchFalseList(exit = il.append(NOP));
      test.backPatchTrueList(truec.getNext());
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