Package org.apache.bcel.generic

Examples of org.apache.bcel.generic.GOTO

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  // Overwrite current iterator with one that gives us only what we want
  _use.translate(classGen, methodGen);
  _use.startResetIterator(classGen, methodGen);
  il.append(methodGen.storeIterator());

  final BranchHandle nextNode = il.append(new GOTO(null));
  final InstructionHandle loop = il.append(NOP);

  // Prepare to call buildKeyIndex(String name, int node, String value);
  il.append(classGen.loadTranslet());
  il.append(new PUSH(cpg, _name.toString()));
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  il.append(methodGen.loadCurrentNode());
  il.append(methodGen.setStartNode());
  il.append(methodGen.storeIterator());

  // Loop for traversing all nodes in the DOM
  final BranchHandle nextNode = il.append(new GOTO(null));
  final InstructionHandle loop = il.append(NOP);

  // Check if the current node matches the pattern in "match"
  il.append(methodGen.loadCurrentNode());
  _match.translate(classGen, methodGen);
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      // LOOP STARTS HERE

      // Now we're ready to start traversing the node-set given in
      // the key() function's second argument....
      final BranchHandle nextNode = il.append(new GOTO(null));
      final InstructionHandle loop = il.append(NOP);

      // Push returnIndex on stack to prepare for call to merge()
      il.append(new ALOAD(returnIndex.getIndex()));
     
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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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  // Backpatch true list and restore current iterator/node
  InstructionHandle restore = il.append(methodGen.storeIterator());
  il.append(methodGen.storeCurrentNode());
  exp.backPatchTrueList(restore);
  BranchHandle skipFalse = il.append(new GOTO(null));

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

  // True list falls through
  skipFalse.setTarget(il.append(NOP));
    }
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  InstructionHandle begin, next;
  node2 = methodGen.addLocalVariable("step_pattern_tmp3",
             Util.getJCRefType(NODE_SIG),
             il.getEnd(), null);

  skipNext = il.append(new GOTO(null));
  next = il.append(new ALOAD(iter.getIndex()));
  begin = il.append(methodGen.nextNode());
  il.append(DUP);
  il.append(new ISTORE(node2.getIndex()));
  _falseList.add(il.append(new IFEQ(null)));  // NodeIterator.END
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  // Overwrite current iterator with one that gives us only what we want
  _use.translate(classGen, methodGen);
  _use.startIterator(classGen, methodGen);
  il.append(methodGen.storeIterator());

  final BranchHandle nextNode = il.append(new GOTO(null));
  final InstructionHandle loop = il.append(NOP);

  // Prepare to call buildKeyIndex(String name, int node, String value);
  il.append(classGen.loadTranslet());
  il.append(new PUSH(cpg, _name.toString()));
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  il.append(methodGen.loadCurrentNode());
  il.append(methodGen.setStartNode());
  il.append(methodGen.storeIterator());

  // Loop for traversing all nodes in the DOM
  final BranchHandle nextNode = il.append(new GOTO(null));
  final InstructionHandle loop = il.append(NOP);

  // Check if the current node matches the pattern in "match"
  il.append(methodGen.loadCurrentNode());
  _match.translate(classGen, methodGen);
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    il.append(DCMPG);
        falsec = il.append(_op == Operators.EQ ?
           (BranchInstruction) new IFNE(null) :
           (BranchInstruction) new IFEQ(null));
    il.append(ICONST_1);
    truec = il.append(new GOTO(null));
    falsec.setTarget(il.append(ICONST_0));
    truec.setTarget(il.append(NOP));
    return;
      }
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      }
      else {
    il.append(loadLocal);
      }

      final BranchHandle exit = il.append(new GOTO(null));
      _loop = il.append(methodGen.loadDOM());
      il.append(loadLocal);
      local.setEnd(_loop);
      il.append(new GOTO(parent));
      exit.setTarget(il.append(NOP));
      _left.backPatchFalseList(_loop);

      _trueList.append(_left._trueList); 
  }
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