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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: Whitespace.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.StringTokenizer;<a name="line.24"></a> |
| <FONT color="green">025</FONT> import java.util.Vector;<a name="line.25"></a> |
| <FONT color="green">026</FONT> <a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.bcel.generic.ALOAD;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.bcel.generic.BranchHandle;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.bcel.generic.ConstantPoolGen;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.bcel.generic.IF_ICMPEQ;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.bcel.generic.ILOAD;<a name="line.31"></a> |
| <FONT color="green">032</FONT> import org.apache.bcel.generic.INVOKEINTERFACE;<a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.apache.bcel.generic.INVOKEVIRTUAL;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.apache.bcel.generic.InstructionHandle;<a name="line.34"></a> |
| <FONT color="green">035</FONT> import org.apache.bcel.generic.InstructionList;<a name="line.35"></a> |
| <FONT color="green">036</FONT> import org.apache.bcel.generic.PUSH;<a name="line.36"></a> |
| <FONT color="green">037</FONT> import org.apache.xalan.xsltc.compiler.util.ClassGenerator;<a name="line.37"></a> |
| <FONT color="green">038</FONT> import org.apache.xalan.xsltc.compiler.util.ErrorMsg;<a name="line.38"></a> |
| <FONT color="green">039</FONT> import org.apache.xalan.xsltc.compiler.util.MethodGenerator;<a name="line.39"></a> |
| <FONT color="green">040</FONT> import org.apache.xalan.xsltc.compiler.util.Type;<a name="line.40"></a> |
| <FONT color="green">041</FONT> import org.apache.xalan.xsltc.compiler.util.TypeCheckError;<a name="line.41"></a> |
| <FONT color="green">042</FONT> import org.apache.xalan.xsltc.compiler.util.Util;<a name="line.42"></a> |
| <FONT color="green">043</FONT> <a name="line.43"></a> |
| <FONT color="green">044</FONT> /**<a name="line.44"></a> |
| <FONT color="green">045</FONT> * @author Morten Jorgensen<a name="line.45"></a> |
| <FONT color="green">046</FONT> */<a name="line.46"></a> |
| <FONT color="green">047</FONT> final class Whitespace extends TopLevelElement {<a name="line.47"></a> |
| <FONT color="green">048</FONT> // Three possible actions for the translet:<a name="line.48"></a> |
| <FONT color="green">049</FONT> public static final int USE_PREDICATE = 0;<a name="line.49"></a> |
| <FONT color="green">050</FONT> public static final int STRIP_SPACE = 1;<a name="line.50"></a> |
| <FONT color="green">051</FONT> public static final int PRESERVE_SPACE = 2;<a name="line.51"></a> |
| <FONT color="green">052</FONT> <a name="line.52"></a> |
| <FONT color="green">053</FONT> // The 3 different categories of strip/preserve rules (order important)<a name="line.53"></a> |
| <FONT color="green">054</FONT> public static final int RULE_NONE = 0; <a name="line.54"></a> |
| <FONT color="green">055</FONT> public static final int RULE_ELEMENT = 1; // priority 0<a name="line.55"></a> |
| <FONT color="green">056</FONT> public static final int RULE_NAMESPACE = 2; // priority -1/4<a name="line.56"></a> |
| <FONT color="green">057</FONT> public static final int RULE_ALL = 3; // priority -1/2<a name="line.57"></a> |
| <FONT color="green">058</FONT> <a name="line.58"></a> |
| <FONT color="green">059</FONT> private String _elementList;<a name="line.59"></a> |
| <FONT color="green">060</FONT> private int _action;<a name="line.60"></a> |
| <FONT color="green">061</FONT> private int _importPrecedence;<a name="line.61"></a> |
| <FONT color="green">062</FONT> <a name="line.62"></a> |
| <FONT color="green">063</FONT> /**<a name="line.63"></a> |
| <FONT color="green">064</FONT> * Auxillary class for encapsulating a single strip/preserve rule<a name="line.64"></a> |
| <FONT color="green">065</FONT> */<a name="line.65"></a> |
| <FONT color="green">066</FONT> private final static class WhitespaceRule {<a name="line.66"></a> |
| <FONT color="green">067</FONT> private final int _action;<a name="line.67"></a> |
| <FONT color="green">068</FONT> private String _namespace; // Should be replaced by NS type (int)<a name="line.68"></a> |
| <FONT color="green">069</FONT> private String _element; // Should be replaced by node type (int)<a name="line.69"></a> |
| <FONT color="green">070</FONT> private int _type;<a name="line.70"></a> |
| <FONT color="green">071</FONT> private int _priority;<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> * Strip/preserve rule constructor<a name="line.74"></a> |
| <FONT color="green">075</FONT> */<a name="line.75"></a> |
| <FONT color="green">076</FONT> public WhitespaceRule(int action, String element, int precedence) {<a name="line.76"></a> |
| <FONT color="green">077</FONT> // Determine the action (strip or preserve) for this rule<a name="line.77"></a> |
| <FONT color="green">078</FONT> _action = action;<a name="line.78"></a> |
| <FONT color="green">079</FONT> <a name="line.79"></a> |
| <FONT color="green">080</FONT> // Get the namespace and element name for this rule<a name="line.80"></a> |
| <FONT color="green">081</FONT> final int colon = element.lastIndexOf(':');<a name="line.81"></a> |
| <FONT color="green">082</FONT> if (colon >= 0) {<a name="line.82"></a> |
| <FONT color="green">083</FONT> _namespace = element.substring(0,colon);<a name="line.83"></a> |
| <FONT color="green">084</FONT> _element = element.substring(colon+1,element.length());<a name="line.84"></a> |
| <FONT color="green">085</FONT> }<a name="line.85"></a> |
| <FONT color="green">086</FONT> else {<a name="line.86"></a> |
| <FONT color="green">087</FONT> _namespace = Constants.EMPTYSTRING;<a name="line.87"></a> |
| <FONT color="green">088</FONT> _element = element;<a name="line.88"></a> |
| <FONT color="green">089</FONT> }<a name="line.89"></a> |
| <FONT color="green">090</FONT> <a name="line.90"></a> |
| <FONT color="green">091</FONT> // Determine the initial priority for this rule<a name="line.91"></a> |
| <FONT color="green">092</FONT> _priority = precedence << 2;<a name="line.92"></a> |
| <FONT color="green">093</FONT> <a name="line.93"></a> |
| <FONT color="green">094</FONT> // Get the strip/preserve type; either "NS:EL", "NS:*" or "*"<a name="line.94"></a> |
| <FONT color="green">095</FONT> if (_element.equals("*")) {<a name="line.95"></a> |
| <FONT color="green">096</FONT> if (_namespace == Constants.EMPTYSTRING) {<a name="line.96"></a> |
| <FONT color="green">097</FONT> _type = RULE_ALL; // Strip/preserve _all_ elements<a name="line.97"></a> |
| <FONT color="green">098</FONT> _priority += 2; // Lowest priority<a name="line.98"></a> |
| <FONT color="green">099</FONT> }<a name="line.99"></a> |
| <FONT color="green">100</FONT> else {<a name="line.100"></a> |
| <FONT color="green">101</FONT> _type = RULE_NAMESPACE; // Strip/reserve elements within NS<a name="line.101"></a> |
| <FONT color="green">102</FONT> _priority += 1; // Medium priority<a name="line.102"></a> |
| <FONT color="green">103</FONT> }<a name="line.103"></a> |
| <FONT color="green">104</FONT> }<a name="line.104"></a> |
| <FONT color="green">105</FONT> else {<a name="line.105"></a> |
| <FONT color="green">106</FONT> _type = RULE_ELEMENT; // Strip/preserve single element<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> /**<a name="line.110"></a> |
| <FONT color="green">111</FONT> * For sorting rules depending on priority<a name="line.111"></a> |
| <FONT color="green">112</FONT> */<a name="line.112"></a> |
| <FONT color="green">113</FONT> public int compareTo(WhitespaceRule other) {<a name="line.113"></a> |
| <FONT color="green">114</FONT> return _priority < other._priority<a name="line.114"></a> |
| <FONT color="green">115</FONT> ? -1<a name="line.115"></a> |
| <FONT color="green">116</FONT> : _priority > other._priority ? 1 : 0;<a name="line.116"></a> |
| <FONT color="green">117</FONT> }<a name="line.117"></a> |
| <FONT color="green">118</FONT> <a name="line.118"></a> |
| <FONT color="green">119</FONT> public int getAction() { return _action; }<a name="line.119"></a> |
| <FONT color="green">120</FONT> public int getStrength() { return _type; }<a name="line.120"></a> |
| <FONT color="green">121</FONT> public int getPriority() { return _priority; }<a name="line.121"></a> |
| <FONT color="green">122</FONT> public String getElement() { return _element; }<a name="line.122"></a> |
| <FONT color="green">123</FONT> public String getNamespace() { return _namespace; }<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> /**<a name="line.126"></a> |
| <FONT color="green">127</FONT> * Parse the attributes of the xsl:strip/preserve-space element.<a name="line.127"></a> |
| <FONT color="green">128</FONT> * The element should have not contents (ignored if any).<a name="line.128"></a> |
| <FONT color="green">129</FONT> */<a name="line.129"></a> |
| <FONT color="green">130</FONT> public void parseContents(Parser parser) {<a name="line.130"></a> |
| <FONT color="green">131</FONT> // Determine if this is an xsl:strip- or preserve-space element<a name="line.131"></a> |
| <FONT color="green">132</FONT> _action = _qname.getLocalPart().endsWith("strip-space") <a name="line.132"></a> |
| <FONT color="green">133</FONT> ? STRIP_SPACE : PRESERVE_SPACE;<a name="line.133"></a> |
| <FONT color="green">134</FONT> <a name="line.134"></a> |
| <FONT color="green">135</FONT> // Determine the import precedence<a name="line.135"></a> |
| <FONT color="green">136</FONT> _importPrecedence = parser.getCurrentImportPrecedence();<a name="line.136"></a> |
| <FONT color="green">137</FONT> <a name="line.137"></a> |
| <FONT color="green">138</FONT> // Get the list of elements to strip/preserve<a name="line.138"></a> |
| <FONT color="green">139</FONT> _elementList = getAttribute("elements");<a name="line.139"></a> |
| <FONT color="green">140</FONT> if (_elementList == null || _elementList.length() == 0) {<a name="line.140"></a> |
| <FONT color="green">141</FONT> reportError(this, parser, ErrorMsg.REQUIRED_ATTR_ERR, "elements");<a name="line.141"></a> |
| <FONT color="green">142</FONT> return;<a name="line.142"></a> |
| <FONT color="green">143</FONT> }<a name="line.143"></a> |
| <FONT color="green">144</FONT> <a name="line.144"></a> |
| <FONT color="green">145</FONT> final SymbolTable stable = parser.getSymbolTable();<a name="line.145"></a> |
| <FONT color="green">146</FONT> StringTokenizer list = new StringTokenizer(_elementList);<a name="line.146"></a> |
| <FONT color="green">147</FONT> StringBuffer elements = new StringBuffer(Constants.EMPTYSTRING);<a name="line.147"></a> |
| <FONT color="green">148</FONT> <a name="line.148"></a> |
| <FONT color="green">149</FONT> while (list.hasMoreElements()) {<a name="line.149"></a> |
| <FONT color="green">150</FONT> String token = list.nextToken();<a name="line.150"></a> |
| <FONT color="green">151</FONT> String prefix;<a name="line.151"></a> |
| <FONT color="green">152</FONT> String namespace;<a name="line.152"></a> |
| <FONT color="green">153</FONT> int col = token.indexOf(':');<a name="line.153"></a> |
| <FONT color="green">154</FONT> <a name="line.154"></a> |
| <FONT color="green">155</FONT> if (col != -1) {<a name="line.155"></a> |
| <FONT color="green">156</FONT> namespace = lookupNamespace(token.substring(0,col));<a name="line.156"></a> |
| <FONT color="green">157</FONT> if (namespace != null) {<a name="line.157"></a> |
| <FONT color="green">158</FONT> elements.append(namespace+":"+<a name="line.158"></a> |
| <FONT color="green">159</FONT> token.substring(col+1,token.length()));<a name="line.159"></a> |
| <FONT color="green">160</FONT> } else {<a name="line.160"></a> |
| <FONT color="green">161</FONT> elements.append(token);<a name="line.161"></a> |
| <FONT color="green">162</FONT> }<a name="line.162"></a> |
| <FONT color="green">163</FONT> } else {<a name="line.163"></a> |
| <FONT color="green">164</FONT> elements.append(token);<a name="line.164"></a> |
| <FONT color="green">165</FONT> }<a name="line.165"></a> |
| <FONT color="green">166</FONT> <a name="line.166"></a> |
| <FONT color="green">167</FONT> if (list.hasMoreElements())<a name="line.167"></a> |
| <FONT color="green">168</FONT> elements.append(" ");<a name="line.168"></a> |
| <FONT color="green">169</FONT> }<a name="line.169"></a> |
| <FONT color="green">170</FONT> _elementList = elements.toString();<a name="line.170"></a> |
| <FONT color="green">171</FONT> }<a name="line.171"></a> |
| <FONT color="green">172</FONT> <a name="line.172"></a> |
| <FONT color="green">173</FONT> <a name="line.173"></a> |
| <FONT color="green">174</FONT> /**<a name="line.174"></a> |
| <FONT color="green">175</FONT> * De-tokenize the elements listed in the 'elements' attribute and<a name="line.175"></a> |
| <FONT color="green">176</FONT> * instanciate a set of strip/preserve rules.<a name="line.176"></a> |
| <FONT color="green">177</FONT> */<a name="line.177"></a> |
| <FONT color="green">178</FONT> public Vector getRules() {<a name="line.178"></a> |
| <FONT color="green">179</FONT> final Vector rules = new Vector();<a name="line.179"></a> |
| <FONT color="green">180</FONT> // Go through each element and instanciate strip/preserve-object<a name="line.180"></a> |
| <FONT color="green">181</FONT> final StringTokenizer list = new StringTokenizer(_elementList);<a name="line.181"></a> |
| <FONT color="green">182</FONT> while (list.hasMoreElements()) {<a name="line.182"></a> |
| <FONT color="green">183</FONT> rules.add(new WhitespaceRule(_action,<a name="line.183"></a> |
| <FONT color="green">184</FONT> list.nextToken(),<a name="line.184"></a> |
| <FONT color="green">185</FONT> _importPrecedence));<a name="line.185"></a> |
| <FONT color="green">186</FONT> }<a name="line.186"></a> |
| <FONT color="green">187</FONT> return rules;<a name="line.187"></a> |
| <FONT color="green">188</FONT> }<a name="line.188"></a> |
| <FONT color="green">189</FONT> <a name="line.189"></a> |
| <FONT color="green">190</FONT> <a name="line.190"></a> |
| <FONT color="green">191</FONT> /**<a name="line.191"></a> |
| <FONT color="green">192</FONT> * Scans through the rules vector and looks for a rule of higher<a name="line.192"></a> |
| <FONT color="green">193</FONT> * priority that contradicts the current rule.<a name="line.193"></a> |
| <FONT color="green">194</FONT> */<a name="line.194"></a> |
| <FONT color="green">195</FONT> private static WhitespaceRule findContradictingRule(Vector rules,<a name="line.195"></a> |
| <FONT color="green">196</FONT> WhitespaceRule rule) {<a name="line.196"></a> |
| <FONT color="green">197</FONT> for (int i = 0; i < rules.size(); i++) {<a name="line.197"></a> |
| <FONT color="green">198</FONT> // Get the next rule in the prioritized list<a name="line.198"></a> |
| <FONT color="green">199</FONT> WhitespaceRule currentRule = (WhitespaceRule)rules.elementAt(i);<a name="line.199"></a> |
| <FONT color="green">200</FONT> // We only consider rules with higher priority<a name="line.200"></a> |
| <FONT color="green">201</FONT> if (currentRule == rule) {<a name="line.201"></a> |
| <FONT color="green">202</FONT> return null;<a name="line.202"></a> |
| <FONT color="green">203</FONT> }<a name="line.203"></a> |
| <FONT color="green">204</FONT> <a name="line.204"></a> |
| <FONT color="green">205</FONT> /*<a name="line.205"></a> |
| <FONT color="green">206</FONT> * See if there is a contradicting rule with higher priority.<a name="line.206"></a> |
| <FONT color="green">207</FONT> * If the rules has the same action then this rule is redundant,<a name="line.207"></a> |
| <FONT color="green">208</FONT> * if they have different action then this rule will never win.<a name="line.208"></a> |
| <FONT color="green">209</FONT> */<a name="line.209"></a> |
| <FONT color="green">210</FONT> switch (currentRule.getStrength()) {<a name="line.210"></a> |
| <FONT color="green">211</FONT> case RULE_ALL:<a name="line.211"></a> |
| <FONT color="green">212</FONT> return currentRule;<a name="line.212"></a> |
| <FONT color="green">213</FONT> <a name="line.213"></a> |
| <FONT color="green">214</FONT> case RULE_ELEMENT:<a name="line.214"></a> |
| <FONT color="green">215</FONT> if (!rule.getElement().equals(currentRule.getElement())) {<a name="line.215"></a> |
| <FONT color="green">216</FONT> break;<a name="line.216"></a> |
| <FONT color="green">217</FONT> }<a name="line.217"></a> |
| <FONT color="green">218</FONT> // intentional fall-through<a name="line.218"></a> |
| <FONT color="green">219</FONT> case RULE_NAMESPACE:<a name="line.219"></a> |
| <FONT color="green">220</FONT> if (rule.getNamespace().equals(currentRule.getNamespace())) {<a name="line.220"></a> |
| <FONT color="green">221</FONT> return currentRule;<a name="line.221"></a> |
| <FONT color="green">222</FONT> }<a name="line.222"></a> |
| <FONT color="green">223</FONT> break;<a name="line.223"></a> |
| <FONT color="green">224</FONT> }<a name="line.224"></a> |
| <FONT color="green">225</FONT> }<a name="line.225"></a> |
| <FONT color="green">226</FONT> return null;<a name="line.226"></a> |
| <FONT color="green">227</FONT> }<a name="line.227"></a> |
| <FONT color="green">228</FONT> <a name="line.228"></a> |
| <FONT color="green">229</FONT> <a name="line.229"></a> |
| <FONT color="green">230</FONT> /**<a name="line.230"></a> |
| <FONT color="green">231</FONT> * Orders a set or rules by priority, removes redundant rules and rules<a name="line.231"></a> |
| <FONT color="green">232</FONT> * that are shadowed by stronger, contradicting rules.<a name="line.232"></a> |
| <FONT color="green">233</FONT> */<a name="line.233"></a> |
| <FONT color="green">234</FONT> private static int prioritizeRules(Vector rules) {<a name="line.234"></a> |
| <FONT color="green">235</FONT> WhitespaceRule currentRule;<a name="line.235"></a> |
| <FONT color="green">236</FONT> int defaultAction = PRESERVE_SPACE;<a name="line.236"></a> |
| <FONT color="green">237</FONT> <a name="line.237"></a> |
| <FONT color="green">238</FONT> // Sort all rules with regard to priority<a name="line.238"></a> |
| <FONT color="green">239</FONT> quicksort(rules, 0, rules.size()-1);<a name="line.239"></a> |
| <FONT color="green">240</FONT> <a name="line.240"></a> |
| <FONT color="green">241</FONT> // Check if there are any "xsl:strip-space" elements at all.<a name="line.241"></a> |
| <FONT color="green">242</FONT> // If there are no xsl:strip elements we can ignore all xsl:preserve<a name="line.242"></a> |
| <FONT color="green">243</FONT> // elements and signal that all whitespaces should be preserved<a name="line.243"></a> |
| <FONT color="green">244</FONT> boolean strip = false;<a name="line.244"></a> |
| <FONT color="green">245</FONT> for (int i = 0; i < rules.size(); i++) {<a name="line.245"></a> |
| <FONT color="green">246</FONT> currentRule = (WhitespaceRule)rules.elementAt(i);<a name="line.246"></a> |
| <FONT color="green">247</FONT> if (currentRule.getAction() == STRIP_SPACE) {<a name="line.247"></a> |
| <FONT color="green">248</FONT> strip = true;<a name="line.248"></a> |
| <FONT color="green">249</FONT> }<a name="line.249"></a> |
| <FONT color="green">250</FONT> }<a name="line.250"></a> |
| <FONT color="green">251</FONT> // Return with default action: PRESERVE_SPACE<a name="line.251"></a> |
| <FONT color="green">252</FONT> if (!strip) {<a name="line.252"></a> |
| <FONT color="green">253</FONT> rules.removeAllElements();<a name="line.253"></a> |
| <FONT color="green">254</FONT> return PRESERVE_SPACE;<a name="line.254"></a> |
| <FONT color="green">255</FONT> }<a name="line.255"></a> |
| <FONT color="green">256</FONT> <a name="line.256"></a> |
| <FONT color="green">257</FONT> // Remove all rules that are contradicted by rules with higher priority<a name="line.257"></a> |
| <FONT color="green">258</FONT> for (int idx = 0; idx < rules.size(); ) {<a name="line.258"></a> |
| <FONT color="green">259</FONT> currentRule = (WhitespaceRule)rules.elementAt(idx);<a name="line.259"></a> |
| <FONT color="green">260</FONT> <a name="line.260"></a> |
| <FONT color="green">261</FONT> // Remove this single rule if it has no purpose<a name="line.261"></a> |
| <FONT color="green">262</FONT> if (findContradictingRule(rules,currentRule) != null) {<a name="line.262"></a> |
| <FONT color="green">263</FONT> rules.remove(idx);<a name="line.263"></a> |
| <FONT color="green">264</FONT> }<a name="line.264"></a> |
| <FONT color="green">265</FONT> else {<a name="line.265"></a> |
| <FONT color="green">266</FONT> // Remove all following rules if this one overrides all<a name="line.266"></a> |
| <FONT color="green">267</FONT> if (currentRule.getStrength() == RULE_ALL) {<a name="line.267"></a> |
| <FONT color="green">268</FONT> defaultAction = currentRule.getAction();<a name="line.268"></a> |
| <FONT color="green">269</FONT> for (int i = idx; i < rules.size(); i++) {<a name="line.269"></a> |
| <FONT color="green">270</FONT> rules.removeElementAt(i);<a name="line.270"></a> |
| <FONT color="green">271</FONT> }<a name="line.271"></a> |
| <FONT color="green">272</FONT> }<a name="line.272"></a> |
| <FONT color="green">273</FONT> // Skip to next rule (there might not be any)...<a name="line.273"></a> |
| <FONT color="green">274</FONT> idx++;<a name="line.274"></a> |
| <FONT color="green">275</FONT> }<a name="line.275"></a> |
| <FONT color="green">276</FONT> }<a name="line.276"></a> |
| <FONT color="green">277</FONT> <a name="line.277"></a> |
| <FONT color="green">278</FONT> // The rules vector could be empty if first rule has strength RULE_ALL<a name="line.278"></a> |
| <FONT color="green">279</FONT> if (rules.size() == 0) {<a name="line.279"></a> |
| <FONT color="green">280</FONT> return defaultAction;<a name="line.280"></a> |
| <FONT color="green">281</FONT> }<a name="line.281"></a> |
| <FONT color="green">282</FONT> <a name="line.282"></a> |
| <FONT color="green">283</FONT> // Now work backwards and strip away all rules that have the same<a name="line.283"></a> |
| <FONT color="green">284</FONT> // action as the default rule (no reason the check them at the end).<a name="line.284"></a> |
| <FONT color="green">285</FONT> do {<a name="line.285"></a> |
| <FONT color="green">286</FONT> currentRule = (WhitespaceRule)rules.lastElement();<a name="line.286"></a> |
| <FONT color="green">287</FONT> if (currentRule.getAction() == defaultAction) {<a name="line.287"></a> |
| <FONT color="green">288</FONT> rules.removeElementAt(rules.size() - 1);<a name="line.288"></a> |
| <FONT color="green">289</FONT> }<a name="line.289"></a> |
| <FONT color="green">290</FONT> else {<a name="line.290"></a> |
| <FONT color="green">291</FONT> break;<a name="line.291"></a> |
| <FONT color="green">292</FONT> }<a name="line.292"></a> |
| <FONT color="green">293</FONT> } while (rules.size() > 0);<a name="line.293"></a> |
| <FONT color="green">294</FONT> <a name="line.294"></a> |
| <FONT color="green">295</FONT> // Signal that whitespace detection predicate must be used.<a name="line.295"></a> |
| <FONT color="green">296</FONT> return defaultAction;<a name="line.296"></a> |
| <FONT color="green">297</FONT> }<a name="line.297"></a> |
| <FONT color="green">298</FONT> <a name="line.298"></a> |
| <FONT color="green">299</FONT> public static void compileStripSpace(BranchHandle strip[], <a name="line.299"></a> |
| <FONT color="green">300</FONT> int sCount,<a name="line.300"></a> |
| <FONT color="green">301</FONT> InstructionList il) {<a name="line.301"></a> |
| <FONT color="green">302</FONT> final InstructionHandle target = il.append(ICONST_1);<a name="line.302"></a> |
| <FONT color="green">303</FONT> il.append(IRETURN);<a name="line.303"></a> |
| <FONT color="green">304</FONT> for (int i = 0; i < sCount; i++) {<a name="line.304"></a> |
| <FONT color="green">305</FONT> strip[i].setTarget(target);<a name="line.305"></a> |
| <FONT color="green">306</FONT> }<a name="line.306"></a> |
| <FONT color="green">307</FONT> }<a name="line.307"></a> |
| <FONT color="green">308</FONT> <a name="line.308"></a> |
| <FONT color="green">309</FONT> public static void compilePreserveSpace(BranchHandle preserve[], <a name="line.309"></a> |
| <FONT color="green">310</FONT> int pCount,<a name="line.310"></a> |
| <FONT color="green">311</FONT> InstructionList il) {<a name="line.311"></a> |
| <FONT color="green">312</FONT> final InstructionHandle target = il.append(ICONST_0);<a name="line.312"></a> |
| <FONT color="green">313</FONT> il.append(IRETURN);<a name="line.313"></a> |
| <FONT color="green">314</FONT> for (int i = 0; i < pCount; i++) {<a name="line.314"></a> |
| <FONT color="green">315</FONT> preserve[i].setTarget(target);<a name="line.315"></a> |
| <FONT color="green">316</FONT> }<a name="line.316"></a> |
| <FONT color="green">317</FONT> }<a name="line.317"></a> |
| <FONT color="green">318</FONT> <a name="line.318"></a> |
| <FONT color="green">319</FONT> /*<a name="line.319"></a> |
| <FONT color="green">320</FONT> private static void compileDebug(ClassGenerator classGen,<a name="line.320"></a> |
| <FONT color="green">321</FONT> InstructionList il) {<a name="line.321"></a> |
| <FONT color="green">322</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.322"></a> |
| <FONT color="green">323</FONT> final int prt = cpg.addMethodref("java/lang/System/out",<a name="line.323"></a> |
| <FONT color="green">324</FONT> "println",<a name="line.324"></a> |
| <FONT color="green">325</FONT> "(Ljava/lang/String;)V");<a name="line.325"></a> |
| <FONT color="green">326</FONT> il.append(DUP);<a name="line.326"></a> |
| <FONT color="green">327</FONT> il.append(new INVOKESTATIC(prt));<a name="line.327"></a> |
| <FONT color="green">328</FONT> }<a name="line.328"></a> |
| <FONT color="green">329</FONT> */<a name="line.329"></a> |
| <FONT color="green">330</FONT> <a name="line.330"></a> |
| <FONT color="green">331</FONT> /**<a name="line.331"></a> |
| <FONT color="green">332</FONT> * Compiles the predicate method<a name="line.332"></a> |
| <FONT color="green">333</FONT> */<a name="line.333"></a> |
| <FONT color="green">334</FONT> private static void compilePredicate(Vector rules,<a name="line.334"></a> |
| <FONT color="green">335</FONT> int defaultAction,<a name="line.335"></a> |
| <FONT color="green">336</FONT> ClassGenerator classGen) {<a name="line.336"></a> |
| <FONT color="green">337</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.337"></a> |
| <FONT color="green">338</FONT> final InstructionList il = new InstructionList();<a name="line.338"></a> |
| <FONT color="green">339</FONT> final XSLTC xsltc = classGen.getParser().getXSLTC();<a name="line.339"></a> |
| <FONT color="green">340</FONT> <a name="line.340"></a> |
| <FONT color="green">341</FONT> // private boolean Translet.stripSpace(int type) - cannot be static<a name="line.341"></a> |
| <FONT color="green">342</FONT> final MethodGenerator stripSpace =<a name="line.342"></a> |
| <FONT color="green">343</FONT> new MethodGenerator(ACC_PUBLIC | ACC_FINAL ,<a name="line.343"></a> |
| <FONT color="green">344</FONT> org.apache.bcel.generic.Type.BOOLEAN, <a name="line.344"></a> |
| <FONT color="green">345</FONT> new org.apache.bcel.generic.Type[] {<a name="line.345"></a> |
| <FONT color="green">346</FONT> Util.getJCRefType(DOM_INTF_SIG),<a name="line.346"></a> |
| <FONT color="green">347</FONT> org.apache.bcel.generic.Type.INT,<a name="line.347"></a> |
| <FONT color="green">348</FONT> org.apache.bcel.generic.Type.INT<a name="line.348"></a> |
| <FONT color="green">349</FONT> },<a name="line.349"></a> |
| <FONT color="green">350</FONT> new String[] { "dom","node","type" },<a name="line.350"></a> |
| <FONT color="green">351</FONT> "stripSpace",classGen.getClassName(),il,cpg);<a name="line.351"></a> |
| <FONT color="green">352</FONT> <a name="line.352"></a> |
| <FONT color="green">353</FONT> classGen.addInterface("org/apache/xalan/xsltc/StripFilter");<a name="line.353"></a> |
| <FONT color="green">354</FONT> <a name="line.354"></a> |
| <FONT color="green">355</FONT> final int paramDom = stripSpace.getLocalIndex("dom");<a name="line.355"></a> |
| <FONT color="green">356</FONT> final int paramCurrent = stripSpace.getLocalIndex("node");<a name="line.356"></a> |
| <FONT color="green">357</FONT> final int paramType = stripSpace.getLocalIndex("type");<a name="line.357"></a> |
| <FONT color="green">358</FONT> <a name="line.358"></a> |
| <FONT color="green">359</FONT> BranchHandle strip[] = new BranchHandle[rules.size()];<a name="line.359"></a> |
| <FONT color="green">360</FONT> BranchHandle preserve[] = new BranchHandle[rules.size()];<a name="line.360"></a> |
| <FONT color="green">361</FONT> int sCount = 0;<a name="line.361"></a> |
| <FONT color="green">362</FONT> int pCount = 0;<a name="line.362"></a> |
| <FONT color="green">363</FONT> <a name="line.363"></a> |
| <FONT color="green">364</FONT> // Traverse all strip/preserve rules<a name="line.364"></a> |
| <FONT color="green">365</FONT> for (int i = 0; i<rules.size(); i++) {<a name="line.365"></a> |
| <FONT color="green">366</FONT> // Get the next rule in the prioritised list<a name="line.366"></a> |
| <FONT color="green">367</FONT> WhitespaceRule rule = (WhitespaceRule)rules.elementAt(i);<a name="line.367"></a> |
| <FONT color="green">368</FONT> <a name="line.368"></a> |
| <FONT color="green">369</FONT> // Returns the namespace for a node in the DOM<a name="line.369"></a> |
| <FONT color="green">370</FONT> final int gns = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.370"></a> |
| <FONT color="green">371</FONT> "getNamespaceName",<a name="line.371"></a> |
| <FONT color="green">372</FONT> "(I)Ljava/lang/String;");<a name="line.372"></a> |
| <FONT color="green">373</FONT> <a name="line.373"></a> |
| <FONT color="green">374</FONT> final int strcmp = cpg.addMethodref("java/lang/String",<a name="line.374"></a> |
| <FONT color="green">375</FONT> "compareTo",<a name="line.375"></a> |
| <FONT color="green">376</FONT> "(Ljava/lang/String;)I");<a name="line.376"></a> |
| <FONT color="green">377</FONT> <a name="line.377"></a> |
| <FONT color="green">378</FONT> // Handle elements="ns:*" type rule<a name="line.378"></a> |
| <FONT color="green">379</FONT> if (rule.getStrength() == RULE_NAMESPACE) {<a name="line.379"></a> |
| <FONT color="green">380</FONT> il.append(new ALOAD(paramDom));<a name="line.380"></a> |
| <FONT color="green">381</FONT> il.append(new ILOAD(paramCurrent));<a name="line.381"></a> |
| <FONT color="green">382</FONT> il.append(new INVOKEINTERFACE(gns,2));<a name="line.382"></a> |
| <FONT color="green">383</FONT> il.append(new PUSH(cpg, rule.getNamespace()));<a name="line.383"></a> |
| <FONT color="green">384</FONT> il.append(new INVOKEVIRTUAL(strcmp));<a name="line.384"></a> |
| <FONT color="green">385</FONT> il.append(ICONST_0);<a name="line.385"></a> |
| <FONT color="green">386</FONT> <a name="line.386"></a> |
| <FONT color="green">387</FONT> if (rule.getAction() == STRIP_SPACE) {<a name="line.387"></a> |
| <FONT color="green">388</FONT> strip[sCount++] = il.append(new IF_ICMPEQ(null));<a name="line.388"></a> |
| <FONT color="green">389</FONT> }<a name="line.389"></a> |
| <FONT color="green">390</FONT> else {<a name="line.390"></a> |
| <FONT color="green">391</FONT> preserve[pCount++] = il.append(new IF_ICMPEQ(null));<a name="line.391"></a> |
| <FONT color="green">392</FONT> }<a name="line.392"></a> |
| <FONT color="green">393</FONT> }<a name="line.393"></a> |
| <FONT color="green">394</FONT> // Handle elements="ns:el" type rule<a name="line.394"></a> |
| <FONT color="green">395</FONT> else if (rule.getStrength() == RULE_ELEMENT) {<a name="line.395"></a> |
| <FONT color="green">396</FONT> // Create the QName for the element<a name="line.396"></a> |
| <FONT color="green">397</FONT> final Parser parser = classGen.getParser();<a name="line.397"></a> |
| <FONT color="green">398</FONT> QName qname;<a name="line.398"></a> |
| <FONT color="green">399</FONT> if (rule.getNamespace() != Constants.EMPTYSTRING )<a name="line.399"></a> |
| <FONT color="green">400</FONT> qname = parser.getQName(rule.getNamespace(), null,<a name="line.400"></a> |
| <FONT color="green">401</FONT> rule.getElement());<a name="line.401"></a> |
| <FONT color="green">402</FONT> else<a name="line.402"></a> |
| <FONT color="green">403</FONT> qname = parser.getQName(rule.getElement());<a name="line.403"></a> |
| <FONT color="green">404</FONT> <a name="line.404"></a> |
| <FONT color="green">405</FONT> // Register the element.<a name="line.405"></a> |
| <FONT color="green">406</FONT> final int elementType = xsltc.registerElement(qname);<a name="line.406"></a> |
| <FONT color="green">407</FONT> il.append(new ILOAD(paramType));<a name="line.407"></a> |
| <FONT color="green">408</FONT> il.append(new PUSH(cpg, elementType));<a name="line.408"></a> |
| <FONT color="green">409</FONT> <a name="line.409"></a> |
| <FONT color="green">410</FONT> // Compare current node type with wanted element type<a name="line.410"></a> |
| <FONT color="green">411</FONT> if (rule.getAction() == STRIP_SPACE)<a name="line.411"></a> |
| <FONT color="green">412</FONT> strip[sCount++] = il.append(new IF_ICMPEQ(null));<a name="line.412"></a> |
| <FONT color="green">413</FONT> else<a name="line.413"></a> |
| <FONT color="green">414</FONT> preserve[pCount++] = il.append(new IF_ICMPEQ(null));<a name="line.414"></a> |
| <FONT color="green">415</FONT> }<a name="line.415"></a> |
| <FONT color="green">416</FONT> }<a name="line.416"></a> |
| <FONT color="green">417</FONT> <a name="line.417"></a> |
| <FONT color="green">418</FONT> if (defaultAction == STRIP_SPACE) {<a name="line.418"></a> |
| <FONT color="green">419</FONT> compileStripSpace(strip, sCount, il);<a name="line.419"></a> |
| <FONT color="green">420</FONT> compilePreserveSpace(preserve, pCount, il);<a name="line.420"></a> |
| <FONT color="green">421</FONT> }<a name="line.421"></a> |
| <FONT color="green">422</FONT> else {<a name="line.422"></a> |
| <FONT color="green">423</FONT> compilePreserveSpace(preserve, pCount, il);<a name="line.423"></a> |
| <FONT color="green">424</FONT> compileStripSpace(strip, sCount, il);<a name="line.424"></a> |
| <FONT color="green">425</FONT> }<a name="line.425"></a> |
| <FONT color="green">426</FONT> <a name="line.426"></a> |
| <FONT color="green">427</FONT> classGen.addMethod(stripSpace);<a name="line.427"></a> |
| <FONT color="green">428</FONT> }<a name="line.428"></a> |
| <FONT color="green">429</FONT> <a name="line.429"></a> |
| <FONT color="green">430</FONT> /**<a name="line.430"></a> |
| <FONT color="green">431</FONT> * Compiles the predicate method<a name="line.431"></a> |
| <FONT color="green">432</FONT> */<a name="line.432"></a> |
| <FONT color="green">433</FONT> private static void compileDefault(int defaultAction,<a name="line.433"></a> |
| <FONT color="green">434</FONT> ClassGenerator classGen) {<a name="line.434"></a> |
| <FONT color="green">435</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.435"></a> |
| <FONT color="green">436</FONT> final InstructionList il = new InstructionList();<a name="line.436"></a> |
| <FONT color="green">437</FONT> final XSLTC xsltc = classGen.getParser().getXSLTC();<a name="line.437"></a> |
| <FONT color="green">438</FONT> <a name="line.438"></a> |
| <FONT color="green">439</FONT> // private boolean Translet.stripSpace(int type) - cannot be static<a name="line.439"></a> |
| <FONT color="green">440</FONT> final MethodGenerator stripSpace =<a name="line.440"></a> |
| <FONT color="green">441</FONT> new MethodGenerator(ACC_PUBLIC | ACC_FINAL ,<a name="line.441"></a> |
| <FONT color="green">442</FONT> org.apache.bcel.generic.Type.BOOLEAN, <a name="line.442"></a> |
| <FONT color="green">443</FONT> new org.apache.bcel.generic.Type[] {<a name="line.443"></a> |
| <FONT color="green">444</FONT> Util.getJCRefType(DOM_INTF_SIG),<a name="line.444"></a> |
| <FONT color="green">445</FONT> org.apache.bcel.generic.Type.INT,<a name="line.445"></a> |
| <FONT color="green">446</FONT> org.apache.bcel.generic.Type.INT<a name="line.446"></a> |
| <FONT color="green">447</FONT> },<a name="line.447"></a> |
| <FONT color="green">448</FONT> new String[] { "dom","node","type" },<a name="line.448"></a> |
| <FONT color="green">449</FONT> "stripSpace",classGen.getClassName(),il,cpg);<a name="line.449"></a> |
| <FONT color="green">450</FONT> <a name="line.450"></a> |
| <FONT color="green">451</FONT> classGen.addInterface("org/apache/xalan/xsltc/StripFilter");<a name="line.451"></a> |
| <FONT color="green">452</FONT> <a name="line.452"></a> |
| <FONT color="green">453</FONT> if (defaultAction == STRIP_SPACE)<a name="line.453"></a> |
| <FONT color="green">454</FONT> il.append(ICONST_1);<a name="line.454"></a> |
| <FONT color="green">455</FONT> else<a name="line.455"></a> |
| <FONT color="green">456</FONT> il.append(ICONST_0);<a name="line.456"></a> |
| <FONT color="green">457</FONT> il.append(IRETURN);<a name="line.457"></a> |
| <FONT color="green">458</FONT> <a name="line.458"></a> |
| <FONT color="green">459</FONT> classGen.addMethod(stripSpace);<a name="line.459"></a> |
| <FONT color="green">460</FONT> }<a name="line.460"></a> |
| <FONT color="green">461</FONT> <a name="line.461"></a> |
| <FONT color="green">462</FONT> <a name="line.462"></a> |
| <FONT color="green">463</FONT> /**<a name="line.463"></a> |
| <FONT color="green">464</FONT> * Takes a vector of WhitespaceRule objects and generates a predicate<a name="line.464"></a> |
| <FONT color="green">465</FONT> * method. This method returns the translets default action for handling<a name="line.465"></a> |
| <FONT color="green">466</FONT> * whitespace text-nodes:<a name="line.466"></a> |
| <FONT color="green">467</FONT> * - USE_PREDICATE (run the method generated by this method)<a name="line.467"></a> |
| <FONT color="green">468</FONT> * - STRIP_SPACE (always strip whitespace text-nodes)<a name="line.468"></a> |
| <FONT color="green">469</FONT> * - PRESERVE_SPACE (always preserve whitespace text-nodes)<a name="line.469"></a> |
| <FONT color="green">470</FONT> */<a name="line.470"></a> |
| <FONT color="green">471</FONT> public static int translateRules(Vector rules,<a name="line.471"></a> |
| <FONT color="green">472</FONT> ClassGenerator classGen) {<a name="line.472"></a> |
| <FONT color="green">473</FONT> // Get the core rules in prioritized order<a name="line.473"></a> |
| <FONT color="green">474</FONT> final int defaultAction = prioritizeRules(rules);<a name="line.474"></a> |
| <FONT color="green">475</FONT> // The rules vector may be empty after prioritising<a name="line.475"></a> |
| <FONT color="green">476</FONT> if (rules.size() == 0) {<a name="line.476"></a> |
| <FONT color="green">477</FONT> compileDefault(defaultAction,classGen);<a name="line.477"></a> |
| <FONT color="green">478</FONT> return defaultAction;<a name="line.478"></a> |
| <FONT color="green">479</FONT> }<a name="line.479"></a> |
| <FONT color="green">480</FONT> // Now - create a predicate method and sequence through rules...<a name="line.480"></a> |
| <FONT color="green">481</FONT> compilePredicate(rules, defaultAction, classGen);<a name="line.481"></a> |
| <FONT color="green">482</FONT> // Return with the translets required action (<a name="line.482"></a> |
| <FONT color="green">483</FONT> return USE_PREDICATE;<a name="line.483"></a> |
| <FONT color="green">484</FONT> }<a name="line.484"></a> |
| <FONT color="green">485</FONT> <a name="line.485"></a> |
| <FONT color="green">486</FONT> /**<a name="line.486"></a> |
| <FONT color="green">487</FONT> * Sorts a range of rules with regard to PRIORITY only<a name="line.487"></a> |
| <FONT color="green">488</FONT> */<a name="line.488"></a> |
| <FONT color="green">489</FONT> private static void quicksort(Vector rules, int p, int r) {<a name="line.489"></a> |
| <FONT color="green">490</FONT> while (p < r) {<a name="line.490"></a> |
| <FONT color="green">491</FONT> final int q = partition(rules, p, r);<a name="line.491"></a> |
| <FONT color="green">492</FONT> quicksort(rules, p, q);<a name="line.492"></a> |
| <FONT color="green">493</FONT> p = q + 1;<a name="line.493"></a> |
| <FONT color="green">494</FONT> }<a name="line.494"></a> |
| <FONT color="green">495</FONT> }<a name="line.495"></a> |
| <FONT color="green">496</FONT> <a name="line.496"></a> |
| <FONT color="green">497</FONT> /**<a name="line.497"></a> |
| <FONT color="green">498</FONT> * Used with quicksort method above<a name="line.498"></a> |
| <FONT color="green">499</FONT> */<a name="line.499"></a> |
| <FONT color="green">500</FONT> private static int partition(Vector rules, int p, int r) {<a name="line.500"></a> |
| <FONT color="green">501</FONT> final WhitespaceRule x = (WhitespaceRule)rules.elementAt((p+r) >>> 1);<a name="line.501"></a> |
| <FONT color="green">502</FONT> int i = p - 1, j = r + 1;<a name="line.502"></a> |
| <FONT color="green">503</FONT> while (true) {<a name="line.503"></a> |
| <FONT color="green">504</FONT> while (x.compareTo((WhitespaceRule)rules.elementAt(--j)) < 0) {<a name="line.504"></a> |
| <FONT color="green">505</FONT> }<a name="line.505"></a> |
| <FONT color="green">506</FONT> while (x.compareTo((WhitespaceRule)rules.elementAt(++i)) > 0) {<a name="line.506"></a> |
| <FONT color="green">507</FONT> }<a name="line.507"></a> |
| <FONT color="green">508</FONT> if (i < j) {<a name="line.508"></a> |
| <FONT color="green">509</FONT> final WhitespaceRule tmp = (WhitespaceRule)rules.elementAt(i);<a name="line.509"></a> |
| <FONT color="green">510</FONT> rules.setElementAt(rules.elementAt(j), i);<a name="line.510"></a> |
| <FONT color="green">511</FONT> rules.setElementAt(tmp, j);<a name="line.511"></a> |
| <FONT color="green">512</FONT> }<a name="line.512"></a> |
| <FONT color="green">513</FONT> else {<a name="line.513"></a> |
| <FONT color="green">514</FONT> return j;<a name="line.514"></a> |
| <FONT color="green">515</FONT> }<a name="line.515"></a> |
| <FONT color="green">516</FONT> }<a name="line.516"></a> |
| <FONT color="green">517</FONT> }<a name="line.517"></a> |
| <FONT color="green">518</FONT> <a name="line.518"></a> |
| <FONT color="green">519</FONT> /**<a name="line.519"></a> |
| <FONT color="green">520</FONT> * Type-check contents/attributes - nothing to do...<a name="line.520"></a> |
| <FONT color="green">521</FONT> */<a name="line.521"></a> |
| <FONT color="green">522</FONT> public Type typeCheck(SymbolTable stable) throws TypeCheckError {<a name="line.522"></a> |
| <FONT color="green">523</FONT> return Type.Void; // We don't return anything.<a name="line.523"></a> |
| <FONT color="green">524</FONT> }<a name="line.524"></a> |
| <FONT color="green">525</FONT> <a name="line.525"></a> |
| <FONT color="green">526</FONT> /**<a name="line.526"></a> |
| <FONT color="green">527</FONT> * This method should not produce any code<a name="line.527"></a> |
| <FONT color="green">528</FONT> */<a name="line.528"></a> |
| <FONT color="green">529</FONT> public void translate(ClassGenerator classGen, MethodGenerator methodGen) {<a name="line.529"></a> |
| <FONT color="green">530</FONT> }<a name="line.530"></a> |
| <FONT color="green">531</FONT> }<a name="line.531"></a> |
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| </PRE> |
| </BODY> |
| </HTML> |
