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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<FONT color="green">003</FONT>     * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<FONT color="green">004</FONT>     * distributed with this work for additional information<a name="line.4"></a>
<FONT color="green">005</FONT>     * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<FONT color="green">006</FONT>     * to you under the Apache License, Version 2.0 (the  "License");<a name="line.6"></a>
<FONT color="green">007</FONT>     * you may not use this file except in compliance with the License.<a name="line.7"></a>
<FONT color="green">008</FONT>     * You may obtain a copy of the License at<a name="line.8"></a>
<FONT color="green">009</FONT>     *<a name="line.9"></a>
<FONT color="green">010</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<FONT color="green">011</FONT>     *<a name="line.11"></a>
<FONT color="green">012</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<FONT color="green">013</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<FONT color="green">014</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<FONT color="green">015</FONT>     * See the License for the specific language governing permissions and<a name="line.15"></a>
<FONT color="green">016</FONT>     * limitations under the License.<a name="line.16"></a>
<FONT color="green">017</FONT>     */<a name="line.17"></a>
<FONT color="green">018</FONT>    /*<a name="line.18"></a>
<FONT color="green">019</FONT>     * $Id: AbsolutePathPattern.java 468650 2006-10-28 07:03:30Z minchau $<a name="line.19"></a>
<FONT color="green">020</FONT>     */<a name="line.20"></a>
<FONT color="green">021</FONT>    <a name="line.21"></a>
<FONT color="green">022</FONT>    package org.apache.xalan.xsltc.compiler;<a name="line.22"></a>
<FONT color="green">023</FONT>    <a name="line.23"></a>
<FONT color="green">024</FONT>    import org.apache.bcel.generic.BranchHandle;<a name="line.24"></a>
<FONT color="green">025</FONT>    import org.apache.bcel.generic.ConstantPoolGen;<a name="line.25"></a>
<FONT color="green">026</FONT>    import org.apache.bcel.generic.GOTO_W;<a name="line.26"></a>
<FONT color="green">027</FONT>    import org.apache.bcel.generic.IF_ICMPEQ;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.bcel.generic.ILOAD;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.apache.bcel.generic.INVOKEINTERFACE;<a name="line.29"></a>
<FONT color="green">030</FONT>    import org.apache.bcel.generic.ISTORE;<a name="line.30"></a>
<FONT color="green">031</FONT>    import org.apache.bcel.generic.InstructionHandle;<a name="line.31"></a>
<FONT color="green">032</FONT>    import org.apache.bcel.generic.InstructionList;<a name="line.32"></a>
<FONT color="green">033</FONT>    import org.apache.bcel.generic.LocalVariableGen;<a name="line.33"></a>
<FONT color="green">034</FONT>    import org.apache.bcel.generic.PUSH;<a name="line.34"></a>
<FONT color="green">035</FONT>    import org.apache.xalan.xsltc.compiler.util.ClassGenerator;<a name="line.35"></a>
<FONT color="green">036</FONT>    import org.apache.xalan.xsltc.compiler.util.MethodGenerator;<a name="line.36"></a>
<FONT color="green">037</FONT>    import org.apache.xalan.xsltc.compiler.util.Type;<a name="line.37"></a>
<FONT color="green">038</FONT>    import org.apache.xalan.xsltc.compiler.util.TypeCheckError;<a name="line.38"></a>
<FONT color="green">039</FONT>    import org.apache.xalan.xsltc.compiler.util.Util;<a name="line.39"></a>
<FONT color="green">040</FONT>    import org.apache.xml.dtm.DTM;<a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>    /**<a name="line.42"></a>
<FONT color="green">043</FONT>     * @author Jacek Ambroziak<a name="line.43"></a>
<FONT color="green">044</FONT>     * @author Santiago Pericas-Geertsen<a name="line.44"></a>
<FONT color="green">045</FONT>     */<a name="line.45"></a>
<FONT color="green">046</FONT>    final class AbsolutePathPattern extends LocationPathPattern {<a name="line.46"></a>
<FONT color="green">047</FONT>        private final RelativePathPattern _left; // may be null<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>        public AbsolutePathPattern(RelativePathPattern left) {<a name="line.49"></a>
<FONT color="green">050</FONT>            _left = left;<a name="line.50"></a>
<FONT color="green">051</FONT>            if (left != null) {<a name="line.51"></a>
<FONT color="green">052</FONT>                left.setParent(this);<a name="line.52"></a>
<FONT color="green">053</FONT>            }<a name="line.53"></a>
<FONT color="green">054</FONT>        }<a name="line.54"></a>
<FONT color="green">055</FONT>    <a name="line.55"></a>
<FONT color="green">056</FONT>        public void setParser(Parser parser) {<a name="line.56"></a>
<FONT color="green">057</FONT>            super.setParser(parser);<a name="line.57"></a>
<FONT color="green">058</FONT>            if (_left != null)<a name="line.58"></a>
<FONT color="green">059</FONT>                _left.setParser(parser);<a name="line.59"></a>
<FONT color="green">060</FONT>        }<a name="line.60"></a>
<FONT color="green">061</FONT>        <a name="line.61"></a>
<FONT color="green">062</FONT>        public Type typeCheck(SymbolTable stable) throws TypeCheckError {<a name="line.62"></a>
<FONT color="green">063</FONT>            return _left == null ? Type.Root : _left.typeCheck(stable);<a name="line.63"></a>
<FONT color="green">064</FONT>        }<a name="line.64"></a>
<FONT color="green">065</FONT>    <a name="line.65"></a>
<FONT color="green">066</FONT>        public boolean isWildcard() {<a name="line.66"></a>
<FONT color="green">067</FONT>            return false;<a name="line.67"></a>
<FONT color="green">068</FONT>        }<a name="line.68"></a>
<FONT color="green">069</FONT>            <a name="line.69"></a>
<FONT color="green">070</FONT>        public StepPattern getKernelPattern() {<a name="line.70"></a>
<FONT color="green">071</FONT>            return _left != null ? _left.getKernelPattern() : null;<a name="line.71"></a>
<FONT color="green">072</FONT>        }<a name="line.72"></a>
<FONT color="green">073</FONT>            <a name="line.73"></a>
<FONT color="green">074</FONT>        public void reduceKernelPattern() {<a name="line.74"></a>
<FONT color="green">075</FONT>            _left.reduceKernelPattern();<a name="line.75"></a>
<FONT color="green">076</FONT>        }<a name="line.76"></a>
<FONT color="green">077</FONT>            <a name="line.77"></a>
<FONT color="green">078</FONT>        public void translate(ClassGenerator classGen, MethodGenerator methodGen) {<a name="line.78"></a>
<FONT color="green">079</FONT>            final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.79"></a>
<FONT color="green">080</FONT>            final InstructionList il = methodGen.getInstructionList();<a name="line.80"></a>
<FONT color="green">081</FONT>    <a name="line.81"></a>
<FONT color="green">082</FONT>            if (_left != null) {<a name="line.82"></a>
<FONT color="green">083</FONT>                if (_left instanceof StepPattern) {<a name="line.83"></a>
<FONT color="green">084</FONT>                    final LocalVariableGen local = <a name="line.84"></a>
<FONT color="green">085</FONT>                        // absolute path pattern temporary<a name="line.85"></a>
<FONT color="green">086</FONT>                        methodGen.addLocalVariable2("apptmp", <a name="line.86"></a>
<FONT color="green">087</FONT>                                                    Util.getJCRefType(NODE_SIG),<a name="line.87"></a>
<FONT color="green">088</FONT>                                                    null);<a name="line.88"></a>
<FONT color="green">089</FONT>                    il.append(DUP);<a name="line.89"></a>
<FONT color="green">090</FONT>                    local.setStart(il.append(new ISTORE(local.getIndex())));<a name="line.90"></a>
<FONT color="green">091</FONT>                    _left.translate(classGen, methodGen);<a name="line.91"></a>
<FONT color="green">092</FONT>                    il.append(methodGen.loadDOM());<a name="line.92"></a>
<FONT color="green">093</FONT>                    local.setEnd(il.append(new ILOAD(local.getIndex())));<a name="line.93"></a>
<FONT color="green">094</FONT>                    methodGen.removeLocalVariable(local);<a name="line.94"></a>
<FONT color="green">095</FONT>                }<a name="line.95"></a>
<FONT color="green">096</FONT>                else {<a name="line.96"></a>
<FONT color="green">097</FONT>                    _left.translate(classGen, methodGen);<a name="line.97"></a>
<FONT color="green">098</FONT>                }<a name="line.98"></a>
<FONT color="green">099</FONT>            }<a name="line.99"></a>
<FONT color="green">100</FONT>    <a name="line.100"></a>
<FONT color="green">101</FONT>            final int getParent = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.101"></a>
<FONT color="green">102</FONT>                                                            GET_PARENT,<a name="line.102"></a>
<FONT color="green">103</FONT>                                                            GET_PARENT_SIG);<a name="line.103"></a>
<FONT color="green">104</FONT>            final int getType = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.104"></a>
<FONT color="green">105</FONT>                                                          "getExpandedTypeID",<a name="line.105"></a>
<FONT color="green">106</FONT>                                                          "(I)I");<a name="line.106"></a>
<FONT color="green">107</FONT>    <a name="line.107"></a>
<FONT color="green">108</FONT>            InstructionHandle begin = il.append(methodGen.loadDOM());<a name="line.108"></a>
<FONT color="green">109</FONT>            il.append(SWAP);<a name="line.109"></a>
<FONT color="green">110</FONT>            il.append(new INVOKEINTERFACE(getParent, 2));<a name="line.110"></a>
<FONT color="green">111</FONT>            if (_left instanceof AncestorPattern) { <a name="line.111"></a>
<FONT color="green">112</FONT>                il.append(methodGen.loadDOM());<a name="line.112"></a>
<FONT color="green">113</FONT>                il.append(SWAP);<a name="line.113"></a>
<FONT color="green">114</FONT>            }<a name="line.114"></a>
<FONT color="green">115</FONT>            il.append(new INVOKEINTERFACE(getType, 2));<a name="line.115"></a>
<FONT color="green">116</FONT>            il.append(new PUSH(cpg, DTM.DOCUMENT_NODE));<a name="line.116"></a>
<FONT color="green">117</FONT>            <a name="line.117"></a>
<FONT color="green">118</FONT>            final BranchHandle skip = il.append(new IF_ICMPEQ(null));<a name="line.118"></a>
<FONT color="green">119</FONT>            _falseList.add(il.append(new GOTO_W(null)));<a name="line.119"></a>
<FONT color="green">120</FONT>            skip.setTarget(il.append(NOP));<a name="line.120"></a>
<FONT color="green">121</FONT>    <a name="line.121"></a>
<FONT color="green">122</FONT>            if (_left != null) {<a name="line.122"></a>
<FONT color="green">123</FONT>                _left.backPatchTrueList(begin);<a name="line.123"></a>
<FONT color="green">124</FONT>                <a name="line.124"></a>
<FONT color="green">125</FONT>                /*<a name="line.125"></a>
<FONT color="green">126</FONT>                 * If _left is an ancestor pattern, backpatch this pattern's false<a name="line.126"></a>
<FONT color="green">127</FONT>                 * list to the loop that searches for more ancestors.<a name="line.127"></a>
<FONT color="green">128</FONT>                 */<a name="line.128"></a>
<FONT color="green">129</FONT>                if (_left instanceof AncestorPattern) {<a name="line.129"></a>
<FONT color="green">130</FONT>                    final AncestorPattern ancestor = (AncestorPattern) _left;<a name="line.130"></a>
<FONT color="green">131</FONT>                    _falseList.backPatch(ancestor.getLoopHandle());         // clears list<a name="line.131"></a>
<FONT color="green">132</FONT>                }<a name="line.132"></a>
<FONT color="green">133</FONT>                _falseList.append(_left._falseList);<a name="line.133"></a>
<FONT color="green">134</FONT>            }<a name="line.134"></a>
<FONT color="green">135</FONT>        }<a name="line.135"></a>
<FONT color="green">136</FONT>            <a name="line.136"></a>
<FONT color="green">137</FONT>        public String toString() {<a name="line.137"></a>
<FONT color="green">138</FONT>            return "absolutePathPattern(" + (_left != null ? _left.toString() : ")");<a name="line.138"></a>
<FONT color="green">139</FONT>        }<a name="line.139"></a>
<FONT color="green">140</FONT>    }<a name="line.140"></a>


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