Package com.sun.org.apache.bcel.internal.generic

Examples of com.sun.org.apache.bcel.internal.generic.NEW


            default:
                // Push current output handler onto the stack
                il.append(methodGen.loadHandler());

                // Replace the current output handler by a ToXMLStream
                il.append(new NEW(cpg.addClass(STREAM_XML_OUTPUT)));
                il.append(methodGen.storeHandler());

                // Push a reference to a StringWriter
                il.append(new NEW(cpg.addClass(STRING_WRITER)));
                il.append(DUP);
                il.append(DUP);
                il.append(new INVOKESPECIAL(
                    cpg.addMethodref(STRING_WRITER, "<init>", "()V")));

                // Load ToXMLStream
                il.append(methodGen.loadHandler());
                il.append(new INVOKESPECIAL(
                    cpg.addMethodref(STREAM_XML_OUTPUT, "<init>",
                                     "()V")));

                // Invoke output.setWriter(STRING_WRITER)
                il.append(methodGen.loadHandler());
                il.append(SWAP);
                il.append(new INVOKEINTERFACE(
                    cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
                                              "setWriter",
                                              "("+WRITER_SIG+")V"), 2));

                // Invoke output.setEncoding("UTF-8")
                il.append(methodGen.loadHandler());
                il.append(new PUSH(cpg, "UTF-8"));   // other encodings?
                il.append(new INVOKEINTERFACE(
                    cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
                                              "setEncoding",
                                              "("+STRING_SIG+")V"), 2));

                // Invoke output.setOmitXMLDeclaration(true)
                il.append(methodGen.loadHandler());
                il.append(ICONST_1);
                il.append(new INVOKEINTERFACE(
                    cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
                                              "setOmitXMLDeclaration",
                                              "(Z)V"), 2));

                il.append(methodGen.loadHandler());
                il.append(new INVOKEINTERFACE(
                    cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
                                              "startDocument",
                                              "()V"), 1));

                // Inline translation of contents
                translateContents(classGen, methodGen);

                il.append(methodGen.loadHandler());
                il.append(new INVOKEINTERFACE(
                    cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
                                              "endDocument",
                                              "()V"), 1));

                // Call toString() on StringWriter
                il.append(new INVOKEVIRTUAL(
                    cpg.addMethodref(STRING_WRITER, "toString",
                                     "()" + STRING_SIG)));

                // Restore old output handler
                il.append(SWAP);
                il.append(methodGen.storeHandler());
            break;
        }

        // Send the resulting string to the message handling method
        il.append(new INVOKEVIRTUAL(cpg.addMethodref(TRANSLET_CLASS,
                                                     "displayMessage",
                                                     "("+STRING_SIG+")V")));

        // If 'terminate' attribute is set to 'yes': Instanciate a
        // RunTimeException, but it on the stack and throw an exception
        if (_terminate == true) {
            // Create a new instance of RunTimeException
            final int einit = cpg.addMethodref("java.lang.RuntimeException",
                                               "<init>",
                                               "(Ljava/lang/String;)V");
            il.append(new NEW(cpg.addClass("java.lang.RuntimeException")));
            il.append(DUP);
            il.append(new PUSH(cpg,"Termination forced by an " +
                                   "xsl:message instruction"));
            il.append(new INVOKESPECIAL(einit));
            il.append(ATHROW);
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                                       null, null);
            relPathIterator.setStart(
                    il.append(new ASTORE(relPathIterator.getIndex())));

            // Create new AbsoluteIterator
            il.append(new NEW(cpg.addClass(ABSOLUTE_ITERATOR)));
            il.append(DUP);
            relPathIterator.setEnd(
                    il.append(new ALOAD(relPathIterator.getIndex())));

            // Initialize AbsoluteIterator with iterator from the stack
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        // push translet for PUTFIELD
        il.append(classGen.loadTranslet());
        // prepare appropriate DOM implementation

        if (isMultiDocument()) {
            il.append(new NEW(cpg.addClass(MULTI_DOM_CLASS)));
            il.append(DUP);
        }

        il.append(classGen.loadTranslet());
        il.append(transf.loadDOM());
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        final int index = cpg.addMethodref(_className, "<init>",
                                           "(" + TRANSLET_INTF_SIG
                                           + DOM_INTF_SIG
                                           + NODE_ITERATOR_SIG
                                           + "Z)V");
        il.append(new NEW(cpg.addClass(_className)));
        il.append(DUP);
        il.append(classGen.loadTranslet());
        il.append(methodGen.loadDOM());
        il.append(methodGen.loadIterator());
        il.append(_from != null ? ICONST_1 : ICONST_0);
View Full Code Here

                    if (parent instanceof ParentLocationPath){
                        // Wrap the context node in a singleton iterator if not.
                        int init = cpg.addMethodref(SINGLETON_ITERATOR,
                                                    "<init>",
                                                    "("+NODE_SIG+")V");
                        il.append(new NEW(cpg.addClass(SINGLETON_ITERATOR)));
                        il.append(DUP);
                        il.append(methodGen.loadContextNode());
                        il.append(new INVOKESPECIAL(init));
                    } else {
                        // DOM.getAxisIterator(int axis);
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                                         Util.getJCRefType("I"),
                                         null, null);
                predicateValueTemp.setStart(
                        il.append(new ISTORE(predicateValueTemp.getIndex())));

                il.append(new NEW(cpg.addClass(NTH_ITERATOR_CLASS)));
                il.append(DUP);
                iteratorTemp.setEnd(
                        il.append(new ALOAD(iteratorTemp.getIndex())));
                predicateValueTemp.setEnd(
                        il.append(new ILOAD(predicateValueTemp.getIndex())));
                il.append(new INVOKESPECIAL(idx));
            }
            else {
                idx = cpg.addMethodref(CURRENT_NODE_LIST_ITERATOR,
                                       "<init>",
                                       "("
                                       + NODE_ITERATOR_SIG
                                       + CURRENT_NODE_LIST_FILTER_SIG
                                       + NODE_SIG
                                       + TRANSLET_SIG
                                       + ")V");

                // Backwards branches are prohibited if an uninitialized object
                // is on the stack by section 4.9.4 of the JVM Specification,
                // 2nd Ed.  We don't know whether this code might contain
                // backwards branches, so we mustn't create the new object until
                // after we've created the suspect arguments to its constructor.
                // Instead we calculate the values of the arguments to the
                // constructor first, store them in temporary variables, create
                // the object and reload the arguments from the temporaries to
                // avoid the problem.
                translatePredicates(classGen, methodGen, predicateIndex); // recursive call
                LocalVariableGen iteratorTemp
                        = methodGen.addLocalVariable("step_tmp1",
                                         Util.getJCRefType(NODE_ITERATOR_SIG),
                                         null, null);
                iteratorTemp.setStart(
                        il.append(new ASTORE(iteratorTemp.getIndex())));

                predicate.translateFilter(classGen, methodGen);
                LocalVariableGen filterTemp
                        = methodGen.addLocalVariable("step_tmp2",
                              Util.getJCRefType(CURRENT_NODE_LIST_FILTER_SIG),
                              null, null);
                filterTemp.setStart(
                        il.append(new ASTORE(filterTemp.getIndex())));
                // create new CurrentNodeListIterator
                il.append(new NEW(cpg.addClass(CURRENT_NODE_LIST_ITERATOR)));
                il.append(DUP);

                iteratorTemp.setEnd(
                        il.append(new ALOAD(iteratorTemp.getIndex())));
                filterTemp.setEnd(il.append(new ALOAD(filterTemp.getIndex())));
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                                         Util.getJCRefType("I"),
                                         null, null);
                predicateValueTemp.setStart(
                        il.append(new ISTORE(predicateValueTemp.getIndex())));

                il.append(new NEW(cpg.addClass(NTH_ITERATOR_CLASS)));
                il.append(DUP);
                iteratorTemp.setEnd(
                        il.append(new ALOAD(iteratorTemp.getIndex())));
                predicateValueTemp.setEnd(
                        il.append(new ILOAD(predicateValueTemp.getIndex())));
                il.append(new INVOKESPECIAL(nthIteratorIdx));
            } else {
                    // Translate predicates from right to left
                final int initCNLI = cpg.addMethodref(CURRENT_NODE_LIST_ITERATOR,
                                                      "<init>",
                                                      "("+NODE_ITERATOR_SIG+"Z"+
                                                      CURRENT_NODE_LIST_FILTER_SIG +
                                                      NODE_SIG+TRANSLET_SIG+")V");

                // Backwards branches are prohibited if an uninitialized object is
                // on the stack by section 4.9.4 of the JVM Specification, 2nd Ed.
                // We don't know whether this code might contain backwards branches,
                // so we mustn't create the new object until after we've created
                // the suspect arguments to its constructor.  Instead we calculate
                // the values of the arguments to the constructor first, store them
                // in temporary variables, create the object and reload the
                // arguments from the temporaries to avoid the problem.


                LocalVariableGen nodeIteratorTemp =
                    methodGen.addLocalVariable("filter_expr_tmp1",
                                               Util.getJCRefType(NODE_ITERATOR_SIG),
                                               null, null);
                nodeIteratorTemp.setStart(
                        il.append(new ASTORE(nodeIteratorTemp.getIndex())));

                predicate.translate(classGen, methodGen);
                LocalVariableGen filterTemp =
                    methodGen.addLocalVariable("filter_expr_tmp2",
                                  Util.getJCRefType(CURRENT_NODE_LIST_FILTER_SIG),
                                  null, null);
                filterTemp.setStart(il.append(new ASTORE(filterTemp.getIndex())));

                // Create a CurrentNodeListIterator
                il.append(new NEW(cpg.addClass(CURRENT_NODE_LIST_ITERATOR)));
                il.append(DUP);

                // Initialize CurrentNodeListIterator
                nodeIteratorTemp.setEnd(
                        il.append(new ALOAD(nodeIteratorTemp.getIndex())));
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        final int iter = cpg.addMethodref(UNION_ITERATOR_CLASS,
                                          ADD_ITERATOR,
                                          ADD_ITERATOR_SIG);

        // Create the UnionIterator and leave it on the stack
        il.append(new NEW(cpg.addClass(UNION_ITERATOR_CLASS)));
        il.append(DUP);
        il.append(methodGen.loadDOM());
        il.append(new INVOKESPECIAL(init));

        // Add the various iterators to the UnionIterator
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                                                   + STRING_BUFFER_SIG));

            final int toString = cpg.addMethodref(STRING_BUFFER_CLASS,
                                                  "toString",
                                                  "()"+STRING_SIG);
            il.append(new NEW(cpg.addClass(STRING_BUFFER_CLASS)));
            il.append(DUP);
            il.append(new INVOKESPECIAL(initBuffer));
            // StringBuffer is on the stack
            final Enumeration elements = elements();
            while (elements.hasMoreElements()) {
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        // Allocate instance of class in which we'll copy in or copy out locals
        // and make two copies:  last copy is used to invoke constructor;
        // other two are used for references to fields in the CopyLocals object
        InstructionHandle outlinedMethodCallSetup =
            oldMethCopyInIL.append(new NEW(cpg.addClass(argTypeName)));
        oldMethCopyInIL.append(InstructionConstants.DUP);
        oldMethCopyInIL.append(InstructionConstants.DUP);
        oldMethCopyInIL.append(
            new INVOKESPECIAL(cpg.addMethodref(argTypeName, "<init>", "()V")));
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