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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: UnsupportedElement.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 java.util.Vector;<a name="line.24"></a> |
| <FONT color="green">025</FONT> <a name="line.25"></a> |
| <FONT color="green">026</FONT> import org.apache.bcel.generic.ConstantPoolGen;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.bcel.generic.INVOKESTATIC;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.bcel.generic.InstructionList;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.bcel.generic.PUSH;<a name="line.29"></a> |
| <FONT color="green">030</FONT> <a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.xalan.xsltc.compiler.util.ClassGenerator;<a name="line.31"></a> |
| <FONT color="green">032</FONT> import org.apache.xalan.xsltc.compiler.util.ErrorMsg;<a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.apache.xalan.xsltc.compiler.util.MethodGenerator;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.apache.xalan.xsltc.compiler.util.Type;<a name="line.34"></a> |
| <FONT color="green">035</FONT> import org.apache.xalan.xsltc.compiler.util.TypeCheckError;<a name="line.35"></a> |
| <FONT color="green">036</FONT> import org.apache.xalan.xsltc.compiler.util.Util;<a name="line.36"></a> |
| <FONT color="green">037</FONT> <a name="line.37"></a> |
| <FONT color="green">038</FONT> /**<a name="line.38"></a> |
| <FONT color="green">039</FONT> * @author Morten Jorgensen<a name="line.39"></a> |
| <FONT color="green">040</FONT> */<a name="line.40"></a> |
| <FONT color="green">041</FONT> final class UnsupportedElement extends SyntaxTreeNode {<a name="line.41"></a> |
| <FONT color="green">042</FONT> <a name="line.42"></a> |
| <FONT color="green">043</FONT> private Vector _fallbacks = null;<a name="line.43"></a> |
| <FONT color="green">044</FONT> private ErrorMsg _message = null;<a name="line.44"></a> |
| <FONT color="green">045</FONT> private boolean _isExtension = false;<a name="line.45"></a> |
| <FONT color="green">046</FONT> <a name="line.46"></a> |
| <FONT color="green">047</FONT> /**<a name="line.47"></a> |
| <FONT color="green">048</FONT> * Basic consutrcor - stores element uri/prefix/localname<a name="line.48"></a> |
| <FONT color="green">049</FONT> */<a name="line.49"></a> |
| <FONT color="green">050</FONT> public UnsupportedElement(String uri, String prefix, String local, boolean isExtension) {<a name="line.50"></a> |
| <FONT color="green">051</FONT> super(uri, prefix, local);<a name="line.51"></a> |
| <FONT color="green">052</FONT> _isExtension = isExtension;<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> * There are different categories of unsupported elements (believe it<a name="line.56"></a> |
| <FONT color="green">057</FONT> * or not): there are elements within the XSLT namespace (these would<a name="line.57"></a> |
| <FONT color="green">058</FONT> * be elements that are not yet implemented), there are extensions of<a name="line.58"></a> |
| <FONT color="green">059</FONT> * other XSLT processors and there are unrecognised extension elements<a name="line.59"></a> |
| <FONT color="green">060</FONT> * of this XSLT processor. The error message passed to this method<a name="line.60"></a> |
| <FONT color="green">061</FONT> * should describe the unsupported element itself and what category<a name="line.61"></a> |
| <FONT color="green">062</FONT> * the element belongs in.<a name="line.62"></a> |
| <FONT color="green">063</FONT> */<a name="line.63"></a> |
| <FONT color="green">064</FONT> public void setErrorMessage(ErrorMsg message) {<a name="line.64"></a> |
| <FONT color="green">065</FONT> _message = message;<a name="line.65"></a> |
| <FONT color="green">066</FONT> }<a name="line.66"></a> |
| <FONT color="green">067</FONT> <a name="line.67"></a> |
| <FONT color="green">068</FONT> /**<a name="line.68"></a> |
| <FONT color="green">069</FONT> * Displays the contents of this element<a name="line.69"></a> |
| <FONT color="green">070</FONT> */<a name="line.70"></a> |
| <FONT color="green">071</FONT> public void display(int indent) {<a name="line.71"></a> |
| <FONT color="green">072</FONT> indent(indent);<a name="line.72"></a> |
| <FONT color="green">073</FONT> Util.println("Unsupported element = " + _qname.getNamespace() +<a name="line.73"></a> |
| <FONT color="green">074</FONT> ":" + _qname.getLocalPart());<a name="line.74"></a> |
| <FONT color="green">075</FONT> displayContents(indent + IndentIncrement);<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> <a name="line.78"></a> |
| <FONT color="green">079</FONT> /**<a name="line.79"></a> |
| <FONT color="green">080</FONT> * Scan and process all fallback children of the unsupported element.<a name="line.80"></a> |
| <FONT color="green">081</FONT> */<a name="line.81"></a> |
| <FONT color="green">082</FONT> private void processFallbacks(Parser parser) {<a name="line.82"></a> |
| <FONT color="green">083</FONT> <a name="line.83"></a> |
| <FONT color="green">084</FONT> Vector children = getContents();<a name="line.84"></a> |
| <FONT color="green">085</FONT> if (children != null) {<a name="line.85"></a> |
| <FONT color="green">086</FONT> final int count = children.size();<a name="line.86"></a> |
| <FONT color="green">087</FONT> for (int i = 0; i < count; i++) {<a name="line.87"></a> |
| <FONT color="green">088</FONT> SyntaxTreeNode child = (SyntaxTreeNode)children.elementAt(i);<a name="line.88"></a> |
| <FONT color="green">089</FONT> if (child instanceof Fallback) {<a name="line.89"></a> |
| <FONT color="green">090</FONT> Fallback fallback = (Fallback)child;<a name="line.90"></a> |
| <FONT color="green">091</FONT> fallback.activate();<a name="line.91"></a> |
| <FONT color="green">092</FONT> fallback.parseContents(parser);<a name="line.92"></a> |
| <FONT color="green">093</FONT> if (_fallbacks == null) {<a name="line.93"></a> |
| <FONT color="green">094</FONT> _fallbacks = new Vector();<a name="line.94"></a> |
| <FONT color="green">095</FONT> }<a name="line.95"></a> |
| <FONT color="green">096</FONT> _fallbacks.addElement(child);<a name="line.96"></a> |
| <FONT color="green">097</FONT> }<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> <a name="line.101"></a> |
| <FONT color="green">102</FONT> /**<a name="line.102"></a> |
| <FONT color="green">103</FONT> * Find any fallback in the descendant nodes; then activate & parse it<a name="line.103"></a> |
| <FONT color="green">104</FONT> */<a name="line.104"></a> |
| <FONT color="green">105</FONT> public void parseContents(Parser parser) {<a name="line.105"></a> |
| <FONT color="green">106</FONT> processFallbacks(parser);<a name="line.106"></a> |
| <FONT color="green">107</FONT> }<a name="line.107"></a> |
| <FONT color="green">108</FONT> <a name="line.108"></a> |
| <FONT color="green">109</FONT> /**<a name="line.109"></a> |
| <FONT color="green">110</FONT> * Run type check on the fallback element (if any).<a name="line.110"></a> |
| <FONT color="green">111</FONT> */<a name="line.111"></a> |
| <FONT color="green">112</FONT> public Type typeCheck(SymbolTable stable) throws TypeCheckError { <a name="line.112"></a> |
| <FONT color="green">113</FONT> if (_fallbacks != null) {<a name="line.113"></a> |
| <FONT color="green">114</FONT> int count = _fallbacks.size();<a name="line.114"></a> |
| <FONT color="green">115</FONT> for (int i = 0; i < count; i++) {<a name="line.115"></a> |
| <FONT color="green">116</FONT> Fallback fallback = (Fallback)_fallbacks.elementAt(i);<a name="line.116"></a> |
| <FONT color="green">117</FONT> fallback.typeCheck(stable);<a name="line.117"></a> |
| <FONT color="green">118</FONT> }<a name="line.118"></a> |
| <FONT color="green">119</FONT> }<a name="line.119"></a> |
| <FONT color="green">120</FONT> return Type.Void;<a name="line.120"></a> |
| <FONT color="green">121</FONT> }<a name="line.121"></a> |
| <FONT color="green">122</FONT> <a name="line.122"></a> |
| <FONT color="green">123</FONT> /**<a name="line.123"></a> |
| <FONT color="green">124</FONT> * Translate the fallback element (if any).<a name="line.124"></a> |
| <FONT color="green">125</FONT> */<a name="line.125"></a> |
| <FONT color="green">126</FONT> public void translate(ClassGenerator classGen, MethodGenerator methodGen) {<a name="line.126"></a> |
| <FONT color="green">127</FONT> if (_fallbacks != null) {<a name="line.127"></a> |
| <FONT color="green">128</FONT> int count = _fallbacks.size();<a name="line.128"></a> |
| <FONT color="green">129</FONT> for (int i = 0; i < count; i++) {<a name="line.129"></a> |
| <FONT color="green">130</FONT> Fallback fallback = (Fallback)_fallbacks.elementAt(i);<a name="line.130"></a> |
| <FONT color="green">131</FONT> fallback.translate(classGen, methodGen);<a name="line.131"></a> |
| <FONT color="green">132</FONT> }<a name="line.132"></a> |
| <FONT color="green">133</FONT> }<a name="line.133"></a> |
| <FONT color="green">134</FONT> // We only go into the else block in forward-compatibility mode, when<a name="line.134"></a> |
| <FONT color="green">135</FONT> // the unsupported element has no fallback.<a name="line.135"></a> |
| <FONT color="green">136</FONT> else { <a name="line.136"></a> |
| <FONT color="green">137</FONT> // If the unsupported element does not have any fallback child, then<a name="line.137"></a> |
| <FONT color="green">138</FONT> // at runtime, a runtime error should be raised when the unsupported<a name="line.138"></a> |
| <FONT color="green">139</FONT> // element is instantiated. Otherwise, no error is thrown.<a name="line.139"></a> |
| <FONT color="green">140</FONT> ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.140"></a> |
| <FONT color="green">141</FONT> InstructionList il = methodGen.getInstructionList();<a name="line.141"></a> |
| <FONT color="green">142</FONT> <a name="line.142"></a> |
| <FONT color="green">143</FONT> final int unsupportedElem = cpg.addMethodref(BASIS_LIBRARY_CLASS, "unsupported_ElementF",<a name="line.143"></a> |
| <FONT color="green">144</FONT> "(" + STRING_SIG + "Z)V"); <a name="line.144"></a> |
| <FONT color="green">145</FONT> il.append(new PUSH(cpg, getQName().toString()));<a name="line.145"></a> |
| <FONT color="green">146</FONT> il.append(new PUSH(cpg, _isExtension));<a name="line.146"></a> |
| <FONT color="green">147</FONT> il.append(new INVOKESTATIC(unsupportedElem)); <a name="line.147"></a> |
| <FONT color="green">148</FONT> }<a name="line.148"></a> |
| <FONT color="green">149</FONT> }<a name="line.149"></a> |
| <FONT color="green">150</FONT> }<a name="line.150"></a> |
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| </PRE> |
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