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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: Pattern.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.xalan.xsltc.compiler.util.ClassGenerator;<a name="line.24"></a> |
| <FONT color="green">025</FONT> import org.apache.xalan.xsltc.compiler.util.MethodGenerator;<a name="line.25"></a> |
| <FONT color="green">026</FONT> import org.apache.xalan.xsltc.compiler.util.Type;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.xalan.xsltc.compiler.util.TypeCheckError;<a name="line.27"></a> |
| <FONT color="green">028</FONT> <a name="line.28"></a> |
| <FONT color="green">029</FONT> /**<a name="line.29"></a> |
| <FONT color="green">030</FONT> * @author Jacek Ambroziak<a name="line.30"></a> |
| <FONT color="green">031</FONT> * @author Santiago Pericas-Geertsen<a name="line.31"></a> |
| <FONT color="green">032</FONT> */<a name="line.32"></a> |
| <FONT color="green">033</FONT> public abstract class Pattern extends Expression {<a name="line.33"></a> |
| <FONT color="green">034</FONT> /**<a name="line.34"></a> |
| <FONT color="green">035</FONT> * Returns the type of a pattern, which is always a <code>NodeType</code>.<a name="line.35"></a> |
| <FONT color="green">036</FONT> * A <code>NodeType</code> has a number of subtypes defined by <a name="line.36"></a> |
| <FONT color="green">037</FONT> * <code>NodeType._type</code> corresponding to each type of node.<a name="line.37"></a> |
| <FONT color="green">038</FONT> */<a name="line.38"></a> |
| <FONT color="green">039</FONT> public abstract Type typeCheck(SymbolTable stable) throws TypeCheckError;<a name="line.39"></a> |
| <FONT color="green">040</FONT> <a name="line.40"></a> |
| <FONT color="green">041</FONT> /**<a name="line.41"></a> |
| <FONT color="green">042</FONT> * Translate this node into JVM bytecodes. Patterns are translated as<a name="line.42"></a> |
| <FONT color="green">043</FONT> * boolean expressions with true/false lists. Before calling <a name="line.43"></a> |
| <FONT color="green">044</FONT> * <code>translate</code> on a pattern, make sure that the node being <a name="line.44"></a> |
| <FONT color="green">045</FONT> * matched is on top of the stack. After calling <code>translate</code>, <a name="line.45"></a> |
| <FONT color="green">046</FONT> * make sure to backpatch both true and false lists. True lists are the <a name="line.46"></a> |
| <FONT color="green">047</FONT> * default, in the sense that they always <em>"fall through"</em>. If this<a name="line.47"></a> |
| <FONT color="green">048</FONT> * is not the intended semantics (e.g., see <a name="line.48"></a> |
| <FONT color="green">049</FONT> * {@link org.apache.xalan.xsltc.compiler.AlternativePattern#translate})<a name="line.49"></a> |
| <FONT color="green">050</FONT> * then a GOTO must be appended to the instruction list after calling<a name="line.50"></a> |
| <FONT color="green">051</FONT> * <code>translate</code>. <a name="line.51"></a> |
| <FONT color="green">052</FONT> */<a name="line.52"></a> |
| <FONT color="green">053</FONT> public abstract void translate(ClassGenerator classGen,<a name="line.53"></a> |
| <FONT color="green">054</FONT> MethodGenerator methodGen);<a name="line.54"></a> |
| <FONT color="green">055</FONT> <a name="line.55"></a> |
| <FONT color="green">056</FONT> /**<a name="line.56"></a> |
| <FONT color="green">057</FONT> * Returns the priority of this pattern (section 5.5 in the XSLT spec).<a name="line.57"></a> |
| <FONT color="green">058</FONT> */<a name="line.58"></a> |
| <FONT color="green">059</FONT> public abstract double getPriority();<a name="line.59"></a> |
| <FONT color="green">060</FONT> }<a name="line.60"></a> |
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