1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 */ 4 /* 5 * Licensed to the Apache Software Foundation (ASF) under one or more 6 * contributor license agreements. See the NOTICE file distributed with 7 * this work for additional information regarding copyright ownership. 8 * The ASF licenses this file to You under the Apache License, Version 2.0 9 * (the "License"); you may not use this file except in compliance with 10 * the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 package com.sun.org.apache.xalan.internal.xsltc.compiler; 22 23 import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; 24 import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE; 25 import com.sun.org.apache.bcel.internal.generic.InstructionList; 26 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator; 27 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator; 28 import java.util.List; 29 30 /** 31 * @author Morten Jorgensen 32 * @LastModified: Oct 2017 33 */ 34 final class NamespaceUriCall extends NameBase { 35 36 /** 37 * Handles calls with no parameter (current node is implicit parameter). 38 */ 39 public NamespaceUriCall(QName fname) { 40 super(fname); 41 } 42 43 /** 44 * Handles calls with one parameter (either node or node-set). 45 */ 46 public NamespaceUriCall(QName fname, List<Expression> arguments) { 47 super(fname, arguments); 48 } 49 50 /** 51 * Translate code that leaves a node's namespace URI (as a String) 52 * on the stack 53 */ 54 public void translate(ClassGenerator classGen, 55 MethodGenerator methodGen) { 56 final ConstantPoolGen cpg = classGen.getConstantPool(); 57 final InstructionList il = methodGen.getInstructionList(); 58 59 // Returns the string value for a node in the DOM 60 final int getNamespace = cpg.addInterfaceMethodref(DOM_INTF, 61 "getNamespaceName", 62 "(I)"+STRING_SIG); 63 super.translate(classGen, methodGen); 64 il.append(new INVOKEINTERFACE(getNamespace, 2)); 65 } 66 }