Examples of org.apache.bcel.generic.INVOKEVIRTUAL

org.apache.bcel.generic.INVOKEVIRTUAL
INVOKEVIRTUAL - Invoke instance method; dispatch based on class
```
Stack: ..., objectref, [arg1, [arg2 ...]] -> ...
```
@version $Id: INVOKEVIRTUAL.java,v 1.1.1.1 2001/10/29 20:00:17 jvanzyl Exp $ @author M. Dahm


      // Call setValue on the node counter
      index = cpg.addMethodref(NODE_COUNTER, 
             "setValue", 
             "(D)" + NODE_COUNTER_SIG);
      il.append(new INVOKEVIRTUAL(index));
  }
  else if (isDefault()) {
      compileDefault(classGen, methodGen);
  }
  else {
      compilePatterns(classGen, methodGen);
  }


  // Call setStartNode() 
  if (!hasValue()) {
      il.append(methodGen.loadContextNode());
      index = cpg.addMethodref(NODE_COUNTER, 
             SET_START_NODE, 
             "(I)" + NODE_COUNTER_SIG);
      il.append(new INVOKEVIRTUAL(index));
  }


  // Call getCounter() with or without args
  if (_formatNeeded) {
      if (_format != null) {
    _format.translate(classGen, methodGen);
      }
      else {
    il.append(new PUSH(cpg, "1"));
      }


      if (_lang != null) {
    _lang.translate(classGen, methodGen);
      }
      else {
    il.append(new PUSH(cpg, "en"));   // TODO ??
      }


      if (_letterValue != null) {
    _letterValue.translate(classGen, methodGen);
      }
      else {
    il.append(new PUSH(cpg, Constants.EMPTYSTRING));
      }


      if (_groupingSeparator != null) {
    _groupingSeparator.translate(classGen, methodGen);
      }
      else {
    il.append(new PUSH(cpg, Constants.EMPTYSTRING));
      }


      if (_groupingSize != null) {
    _groupingSize.translate(classGen, methodGen);
      }
      else {
    il.append(new PUSH(cpg, "0"));
      }


      index = cpg.addMethodref(NODE_COUNTER, "getCounter", 
             "(" + STRING_SIG + STRING_SIG 
             + STRING_SIG + STRING_SIG 
             + STRING_SIG + ")" + STRING_SIG);
      il.append(new INVOKEVIRTUAL(index));
  }
  else {
      index = cpg.addMethodref(NODE_COUNTER, "setDefaultFormatting", 
             "()" + NODE_COUNTER_SIG);
      il.append(new INVOKEVIRTUAL(index));


      index = cpg.addMethodref(NODE_COUNTER, "getCounter", 
             "()" + STRING_SIG);
      il.append(new INVOKEVIRTUAL(index));
  }


  // Output the resulting string to the handler
  il.append(methodGen.loadHandler());
  index = cpg.addMethodref(TRANSLET_CLASS,
         CHARACTERSW,
         CHARACTERSW_SIG);
  il.append(new INVOKEVIRTUAL(index));
    }

View Full Code Here

    public void translateUnBox(ClassGenerator classGen,
             MethodGenerator methodGen) {
  final ConstantPoolGen cpg = classGen.getConstantPool();
  final InstructionList il = methodGen.getInstructionList();
  il.append(new CHECKCAST(cpg.addClass(DOUBLE_CLASS)));
  il.append(new INVOKEVIRTUAL(cpg.addMethodref(DOUBLE_CLASS,
                 DOUBLE_VALUE, 
                 DOUBLE_VALUE_SIG)));
    }

View Full Code Here


  // translate contents with substituted handler
  translateContents(classGen, methodGen);


  // get String out of the handler
  il.append(new INVOKEVIRTUAL(cpg.addMethodref(STRING_VALUE_HANDLER,
                 "getValueOfPI",
                 "()" + STRING_SIG)));
  // call "processingInstruction"
  final int processingInstruction =
      cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,

View Full Code Here


      StringTokenizer tokens = new StringTokenizer(_cdata);
      while (tokens.hasMoreTokens()) {
    il.append(DUP);
    il.append(new PUSH(cpg, tokens.nextToken()));
    il.append(new INVOKEVIRTUAL(index));
      }
  }
  il.append(POP); // Cleanup - pop last translet reference off stack
    }

View Full Code Here

  // This is a special case for the //* path with or without predicates
        if (_hasDescendantAxis) {
      final int incl = cpg.addMethodref(NODE_ITERATOR_BASE,
                "includeSelf",
                "()" + NODE_ITERATOR_SIG);
      il.append(new INVOKEVIRTUAL(incl));
  }


        SyntaxTreeNode parent = getParent();


        boolean parentAlreadyOrdered =

View Full Code Here


  // Add the various iterators to the UnionIterator
  final int length = _components.length;
  for (int i = 0; i < length; i++) {
      _components[i].translate(classGen, methodGen);
      il.append(new INVOKEVIRTUAL(iter));
  }


  // Order the iterator only if strictly needed
  if (_reverse) {
      final int order = cpg.addInterfaceMethodref(DOM_INTF,

View Full Code Here

  il.append(methodGen.loadDOM());
  il.append(methodGen.loadCurrentNode());
  il.append(new INVOKEINTERFACE(getNodeValue, 2));


  // Finally do the call to add an entry in the index for this key.
  il.append(new INVOKEVIRTUAL(buildKeyIndex));


  nextNode.setTarget(il.append(methodGen.loadIterator()));
  il.append(methodGen.nextNode());


  il.append(DUP);

View Full Code Here

  else {
      il.append(classGen.loadTranslet());
      il.append(new PUSH(cpg, _name.toString()));
      il.append(methodGen.loadCurrentNode());
      _use.translate(classGen, methodGen);
      il.append(new INVOKEVIRTUAL(key));
  }
  
  // Get the next node from the iterator and do loop again...
  final InstructionHandle skip = il.append(NOP);

View Full Code Here

  // Overwrite old handler with DOM handler
  index = cpg.addMethodref(DOM_IMPL,
         "getOutputDomBuilder",
         "()" + TRANSLET_OUTPUT_SIG);


  il.append(new INVOKEVIRTUAL(index));
  il.append(DUP);
  il.append(methodGen.storeHandler());


  // Call startDocument on the new handler
  il.append(methodGen.startDocument());


  // Instantiate result tree fragment
  translateContents(classGen, methodGen);


  // Call endDocument on the new handler
  il.append(methodGen.loadHandler());
  il.append(methodGen.endDocument());


  // Check if we need to wrap the DOMImpl object in a DOMAdapter object
  if (!DOM_CLASS.equals(DOM_IMPL_CLASS)) {
      // new org.apache.xalan.xsltc.dom.DOMAdapter(DOMImpl,String[]);
      index = cpg.addMethodref(DOM_ADAPTER_CLASS,
             "<init>",
             "("+DOM_IMPL_SIG+
             "["+STRING_SIG+
             "["+STRING_SIG+")V");
      il.append(new NEW(cpg.addClass(DOM_ADAPTER_CLASS)));
      il.append(new DUP_X1());
      il.append(SWAP);


      /*
       * Give the DOM adapter an empty type mapping if the nodeset
       * extension function is never called.
       */
      if (!stylesheet.callsNodeset()) {
    il.append(new ICONST(0));
    il.append(new ANEWARRAY(cpg.addClass(STRING)));
    il.append(DUP);
    il.append(new INVOKESPECIAL(index));
      }
      else {
    // Push name arrays on the stack
    il.append(ALOAD_0);
    il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
             NAMES_INDEX,
             NAMES_INDEX_SIG))); 
    il.append(ALOAD_0);
    il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
             NAMESPACE_INDEX,
             NAMESPACE_INDEX_SIG)));


    // Initialized DOM adapter
    il.append(new INVOKESPECIAL(index));


    // Add DOM adapter to MultiDOM class by calling addDOMAdapter()
    il.append(DUP);
    il.append(methodGen.loadDOM());
    il.append(new CHECKCAST(cpg.addClass(classGen.getDOMClass())));
    il.append(SWAP);
    index = cpg.addMethodref(MULTI_DOM_CLASS,
           "addDOMAdapter",
           "(" + DOM_ADAPTER_SIG + ")I");
    il.append(new INVOKEVIRTUAL(index));
    il.append(POP);    // ignore mask returned by addDOMAdapter
      }
  }


  // Restore old handler base from stack

View Full Code Here


  // translate contents with substituted handler
  translateContents(classGen, methodGen);


  // get String out of the handler
  il.append(new INVOKEVIRTUAL(cpg.addMethodref(STRING_VALUE_HANDLER,
                 "getValue",
                 "()" + STRING_SIG)));
  // call "comment"
  final int comment =
      cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,

View Full Code Here

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