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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: ResultTreeType.java 468649 2006-10-28 07:00:55Z 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.util;<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.ALOAD;<a name="line.24"></a> |
| <FONT color="green">025</FONT> import org.apache.bcel.generic.ASTORE;<a name="line.25"></a> |
| <FONT color="green">026</FONT> import org.apache.bcel.generic.CHECKCAST;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.bcel.generic.ConstantPoolGen;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.bcel.generic.GETFIELD;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.bcel.generic.IFEQ;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.bcel.generic.INVOKEINTERFACE;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.bcel.generic.INVOKESPECIAL;<a name="line.31"></a> |
| <FONT color="green">032</FONT> import org.apache.bcel.generic.INVOKEVIRTUAL;<a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.apache.bcel.generic.Instruction;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.apache.bcel.generic.InstructionList;<a name="line.34"></a> |
| <FONT color="green">035</FONT> import org.apache.bcel.generic.LocalVariableGen;<a name="line.35"></a> |
| <FONT color="green">036</FONT> import org.apache.bcel.generic.NEW;<a name="line.36"></a> |
| <FONT color="green">037</FONT> import org.apache.bcel.generic.PUSH;<a name="line.37"></a> |
| <FONT color="green">038</FONT> import org.apache.xalan.xsltc.compiler.Constants;<a name="line.38"></a> |
| <FONT color="green">039</FONT> import org.apache.xalan.xsltc.compiler.FlowList;<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> * @author Jacek Ambroziak<a name="line.42"></a> |
| <FONT color="green">043</FONT> * @author Santiago Pericas-Geertsen<a name="line.43"></a> |
| <FONT color="green">044</FONT> * @author Morten Jorgensen<a name="line.44"></a> |
| <FONT color="green">045</FONT> */<a name="line.45"></a> |
| <FONT color="green">046</FONT> public final class ResultTreeType extends Type {<a name="line.46"></a> |
| <FONT color="green">047</FONT> private final String _methodName;<a name="line.47"></a> |
| <FONT color="green">048</FONT> <a name="line.48"></a> |
| <FONT color="green">049</FONT> protected ResultTreeType() {<a name="line.49"></a> |
| <FONT color="green">050</FONT> _methodName = null;<a name="line.50"></a> |
| <FONT color="green">051</FONT> }<a name="line.51"></a> |
| <FONT color="green">052</FONT> <a name="line.52"></a> |
| <FONT color="green">053</FONT> public ResultTreeType(String methodName) {<a name="line.53"></a> |
| <FONT color="green">054</FONT> _methodName = methodName;<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> public String toString() {<a name="line.57"></a> |
| <FONT color="green">058</FONT> return "result-tree";<a name="line.58"></a> |
| <FONT color="green">059</FONT> }<a name="line.59"></a> |
| <FONT color="green">060</FONT> <a name="line.60"></a> |
| <FONT color="green">061</FONT> public boolean identicalTo(Type other) {<a name="line.61"></a> |
| <FONT color="green">062</FONT> return (other instanceof ResultTreeType);<a name="line.62"></a> |
| <FONT color="green">063</FONT> }<a name="line.63"></a> |
| <FONT color="green">064</FONT> <a name="line.64"></a> |
| <FONT color="green">065</FONT> public String toSignature() {<a name="line.65"></a> |
| <FONT color="green">066</FONT> return DOM_INTF_SIG;<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> public org.apache.bcel.generic.Type toJCType() {<a name="line.69"></a> |
| <FONT color="green">070</FONT> return Util.getJCRefType(toSignature());<a name="line.70"></a> |
| <FONT color="green">071</FONT> }<a name="line.71"></a> |
| <FONT color="green">072</FONT> <a name="line.72"></a> |
| <FONT color="green">073</FONT> public String getMethodName() {<a name="line.73"></a> |
| <FONT color="green">074</FONT> return _methodName;<a name="line.74"></a> |
| <FONT color="green">075</FONT> }<a name="line.75"></a> |
| <FONT color="green">076</FONT> <a name="line.76"></a> |
| <FONT color="green">077</FONT> public boolean implementedAsMethod() {<a name="line.77"></a> |
| <FONT color="green">078</FONT> return _methodName != null;<a name="line.78"></a> |
| <FONT color="green">079</FONT> }<a name="line.79"></a> |
| <FONT color="green">080</FONT> <a name="line.80"></a> |
| <FONT color="green">081</FONT> /**<a name="line.81"></a> |
| <FONT color="green">082</FONT> * Translates a result tree to object of internal type <code>type</code>. <a name="line.82"></a> |
| <FONT color="green">083</FONT> * The translation to int is undefined since result trees<a name="line.83"></a> |
| <FONT color="green">084</FONT> * are always converted to reals in arithmetic expressions.<a name="line.84"></a> |
| <FONT color="green">085</FONT> *<a name="line.85"></a> |
| <FONT color="green">086</FONT> * @param classGen A BCEL class generator<a name="line.86"></a> |
| <FONT color="green">087</FONT> * @param methodGen A BCEL method generator<a name="line.87"></a> |
| <FONT color="green">088</FONT> * @param type An instance of the type to translate the result tree to<a name="line.88"></a> |
| <FONT color="green">089</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.89"></a> |
| <FONT color="green">090</FONT> */<a name="line.90"></a> |
| <FONT color="green">091</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.91"></a> |
| <FONT color="green">092</FONT> Type type) {<a name="line.92"></a> |
| <FONT color="green">093</FONT> if (type == Type.String) {<a name="line.93"></a> |
| <FONT color="green">094</FONT> translateTo(classGen, methodGen, (StringType)type);<a name="line.94"></a> |
| <FONT color="green">095</FONT> }<a name="line.95"></a> |
| <FONT color="green">096</FONT> else if (type == Type.Boolean) {<a name="line.96"></a> |
| <FONT color="green">097</FONT> translateTo(classGen, methodGen, (BooleanType)type);<a name="line.97"></a> |
| <FONT color="green">098</FONT> }<a name="line.98"></a> |
| <FONT color="green">099</FONT> else if (type == Type.Real) {<a name="line.99"></a> |
| <FONT color="green">100</FONT> translateTo(classGen, methodGen, (RealType)type);<a name="line.100"></a> |
| <FONT color="green">101</FONT> }<a name="line.101"></a> |
| <FONT color="green">102</FONT> else if (type == Type.NodeSet) {<a name="line.102"></a> |
| <FONT color="green">103</FONT> translateTo(classGen, methodGen, (NodeSetType)type);<a name="line.103"></a> |
| <FONT color="green">104</FONT> }<a name="line.104"></a> |
| <FONT color="green">105</FONT> else if (type == Type.Reference) {<a name="line.105"></a> |
| <FONT color="green">106</FONT> translateTo(classGen, methodGen, (ReferenceType)type);<a name="line.106"></a> |
| <FONT color="green">107</FONT> }<a name="line.107"></a> |
| <FONT color="green">108</FONT> else if (type == Type.Object) {<a name="line.108"></a> |
| <FONT color="green">109</FONT> translateTo(classGen, methodGen, (ObjectType) type);<a name="line.109"></a> |
| <FONT color="green">110</FONT> }<a name="line.110"></a> |
| <FONT color="green">111</FONT> else {<a name="line.111"></a> |
| <FONT color="green">112</FONT> ErrorMsg err = new ErrorMsg(ErrorMsg.DATA_CONVERSION_ERR,<a name="line.112"></a> |
| <FONT color="green">113</FONT> toString(), type.toString());<a name="line.113"></a> |
| <FONT color="green">114</FONT> classGen.getParser().reportError(Constants.FATAL, err);<a name="line.114"></a> |
| <FONT color="green">115</FONT> }<a name="line.115"></a> |
| <FONT color="green">116</FONT> }<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> * Expects an result tree on the stack and pushes a boolean.<a name="line.119"></a> |
| <FONT color="green">120</FONT> * Translates a result tree to a boolean by first converting it to string.<a name="line.120"></a> |
| <FONT color="green">121</FONT> *<a name="line.121"></a> |
| <FONT color="green">122</FONT> * @param classGen A BCEL class generator<a name="line.122"></a> |
| <FONT color="green">123</FONT> * @param methodGen A BCEL method generator<a name="line.123"></a> |
| <FONT color="green">124</FONT> * @param type An instance of BooleanType (any)<a name="line.124"></a> |
| <FONT color="green">125</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.125"></a> |
| <FONT color="green">126</FONT> */<a name="line.126"></a> |
| <FONT color="green">127</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.127"></a> |
| <FONT color="green">128</FONT> BooleanType type) {<a name="line.128"></a> |
| <FONT color="green">129</FONT> // A result tree is always 'true' when converted to a boolean value,<a name="line.129"></a> |
| <FONT color="green">130</FONT> // since the tree always has at least one node (the root).<a name="line.130"></a> |
| <FONT color="green">131</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.131"></a> |
| <FONT color="green">132</FONT> final InstructionList il = methodGen.getInstructionList();<a name="line.132"></a> |
| <FONT color="green">133</FONT> il.append(POP); // don't need the DOM reference<a name="line.133"></a> |
| <FONT color="green">134</FONT> il.append(ICONST_1); // push 'true' on the stack<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> /**<a name="line.137"></a> |
| <FONT color="green">138</FONT> * Expects an result tree on the stack and pushes a string.<a name="line.138"></a> |
| <FONT color="green">139</FONT> *<a name="line.139"></a> |
| <FONT color="green">140</FONT> * @param classGen A BCEL class generator<a name="line.140"></a> |
| <FONT color="green">141</FONT> * @param methodGen A BCEL method generator<a name="line.141"></a> |
| <FONT color="green">142</FONT> * @param type An instance of StringType (any)<a name="line.142"></a> |
| <FONT color="green">143</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.143"></a> |
| <FONT color="green">144</FONT> */<a name="line.144"></a> |
| <FONT color="green">145</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.145"></a> |
| <FONT color="green">146</FONT> StringType type) {<a name="line.146"></a> |
| <FONT color="green">147</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.147"></a> |
| <FONT color="green">148</FONT> final InstructionList il = methodGen.getInstructionList();<a name="line.148"></a> |
| <FONT color="green">149</FONT> <a name="line.149"></a> |
| <FONT color="green">150</FONT> if (_methodName == null) {<a name="line.150"></a> |
| <FONT color="green">151</FONT> int index = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.151"></a> |
| <FONT color="green">152</FONT> "getStringValue", <a name="line.152"></a> |
| <FONT color="green">153</FONT> "()"+STRING_SIG);<a name="line.153"></a> |
| <FONT color="green">154</FONT> il.append(new INVOKEINTERFACE(index, 1));<a name="line.154"></a> |
| <FONT color="green">155</FONT> }<a name="line.155"></a> |
| <FONT color="green">156</FONT> else {<a name="line.156"></a> |
| <FONT color="green">157</FONT> final String className = classGen.getClassName();<a name="line.157"></a> |
| <FONT color="green">158</FONT> final int current = methodGen.getLocalIndex("current");<a name="line.158"></a> |
| <FONT color="green">159</FONT> <a name="line.159"></a> |
| <FONT color="green">160</FONT> // Push required parameters <a name="line.160"></a> |
| <FONT color="green">161</FONT> il.append(classGen.loadTranslet());<a name="line.161"></a> |
| <FONT color="green">162</FONT> if (classGen.isExternal()) {<a name="line.162"></a> |
| <FONT color="green">163</FONT> il.append(new CHECKCAST(cpg.addClass(className)));<a name="line.163"></a> |
| <FONT color="green">164</FONT> }<a name="line.164"></a> |
| <FONT color="green">165</FONT> il.append(DUP);<a name="line.165"></a> |
| <FONT color="green">166</FONT> il.append(new GETFIELD(cpg.addFieldref(className, "_dom",<a name="line.166"></a> |
| <FONT color="green">167</FONT> DOM_INTF_SIG)));<a name="line.167"></a> |
| <FONT color="green">168</FONT> <a name="line.168"></a> |
| <FONT color="green">169</FONT> // Create a new instance of a StringValueHandler<a name="line.169"></a> |
| <FONT color="green">170</FONT> int index = cpg.addMethodref(STRING_VALUE_HANDLER, "<init>", "()V");<a name="line.170"></a> |
| <FONT color="green">171</FONT> il.append(new NEW(cpg.addClass(STRING_VALUE_HANDLER)));<a name="line.171"></a> |
| <FONT color="green">172</FONT> il.append(DUP);<a name="line.172"></a> |
| <FONT color="green">173</FONT> il.append(DUP);<a name="line.173"></a> |
| <FONT color="green">174</FONT> il.append(new INVOKESPECIAL(index));<a name="line.174"></a> |
| <FONT color="green">175</FONT> <a name="line.175"></a> |
| <FONT color="green">176</FONT> // Store new Handler into a local variable<a name="line.176"></a> |
| <FONT color="green">177</FONT> final LocalVariableGen handler =<a name="line.177"></a> |
| <FONT color="green">178</FONT> methodGen.addLocalVariable("rt_to_string_handler", <a name="line.178"></a> |
| <FONT color="green">179</FONT> Util.getJCRefType(STRING_VALUE_HANDLER_SIG),<a name="line.179"></a> |
| <FONT color="green">180</FONT> null, null);<a name="line.180"></a> |
| <FONT color="green">181</FONT> handler.setStart(il.append(new ASTORE(handler.getIndex())));<a name="line.181"></a> |
| <FONT color="green">182</FONT> <a name="line.182"></a> |
| <FONT color="green">183</FONT> // Call the method that implements this result tree<a name="line.183"></a> |
| <FONT color="green">184</FONT> index = cpg.addMethodref(className, _methodName,<a name="line.184"></a> |
| <FONT color="green">185</FONT> "("+DOM_INTF_SIG+TRANSLET_OUTPUT_SIG+")V");<a name="line.185"></a> |
| <FONT color="green">186</FONT> il.append(new INVOKEVIRTUAL(index));<a name="line.186"></a> |
| <FONT color="green">187</FONT> <a name="line.187"></a> |
| <FONT color="green">188</FONT> // Restore new handler and call getValue()<a name="line.188"></a> |
| <FONT color="green">189</FONT> handler.setEnd(il.append(new ALOAD(handler.getIndex())));<a name="line.189"></a> |
| <FONT color="green">190</FONT> index = cpg.addMethodref(STRING_VALUE_HANDLER,<a name="line.190"></a> |
| <FONT color="green">191</FONT> "getValue",<a name="line.191"></a> |
| <FONT color="green">192</FONT> "()" + STRING_SIG);<a name="line.192"></a> |
| <FONT color="green">193</FONT> il.append(new INVOKEVIRTUAL(index));<a name="line.193"></a> |
| <FONT color="green">194</FONT> }<a name="line.194"></a> |
| <FONT color="green">195</FONT> }<a name="line.195"></a> |
| <FONT color="green">196</FONT> <a name="line.196"></a> |
| <FONT color="green">197</FONT> /**<a name="line.197"></a> |
| <FONT color="green">198</FONT> * Expects an result tree on the stack and pushes a real.<a name="line.198"></a> |
| <FONT color="green">199</FONT> * Translates a result tree into a real by first converting it to string.<a name="line.199"></a> |
| <FONT color="green">200</FONT> *<a name="line.200"></a> |
| <FONT color="green">201</FONT> * @param classGen A BCEL class generator<a name="line.201"></a> |
| <FONT color="green">202</FONT> * @param methodGen A BCEL method generator<a name="line.202"></a> |
| <FONT color="green">203</FONT> * @param type An instance of RealType (any)<a name="line.203"></a> |
| <FONT color="green">204</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.204"></a> |
| <FONT color="green">205</FONT> */<a name="line.205"></a> |
| <FONT color="green">206</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.206"></a> |
| <FONT color="green">207</FONT> RealType type) {<a name="line.207"></a> |
| <FONT color="green">208</FONT> translateTo(classGen, methodGen, Type.String);<a name="line.208"></a> |
| <FONT color="green">209</FONT> Type.String.translateTo(classGen, methodGen, Type.Real); <a name="line.209"></a> |
| <FONT color="green">210</FONT> }<a name="line.210"></a> |
| <FONT color="green">211</FONT> <a name="line.211"></a> |
| <FONT color="green">212</FONT> /**<a name="line.212"></a> |
| <FONT color="green">213</FONT> * Expects a result tree on the stack and pushes a boxed result tree.<a name="line.213"></a> |
| <FONT color="green">214</FONT> * Result trees are already boxed so the translation is just a NOP.<a name="line.214"></a> |
| <FONT color="green">215</FONT> *<a name="line.215"></a> |
| <FONT color="green">216</FONT> * @param classGen A BCEL class generator<a name="line.216"></a> |
| <FONT color="green">217</FONT> * @param methodGen A BCEL method generator<a name="line.217"></a> |
| <FONT color="green">218</FONT> * @param type An instance of ReferenceType (any)<a name="line.218"></a> |
| <FONT color="green">219</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.219"></a> |
| <FONT color="green">220</FONT> */<a name="line.220"></a> |
| <FONT color="green">221</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.221"></a> |
| <FONT color="green">222</FONT> ReferenceType type) {<a name="line.222"></a> |
| <FONT color="green">223</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.223"></a> |
| <FONT color="green">224</FONT> final InstructionList il = methodGen.getInstructionList();<a name="line.224"></a> |
| <FONT color="green">225</FONT> <a name="line.225"></a> |
| <FONT color="green">226</FONT> if (_methodName == null) {<a name="line.226"></a> |
| <FONT color="green">227</FONT> il.append(NOP);<a name="line.227"></a> |
| <FONT color="green">228</FONT> }<a name="line.228"></a> |
| <FONT color="green">229</FONT> else {<a name="line.229"></a> |
| <FONT color="green">230</FONT> LocalVariableGen domBuilder, newDom;<a name="line.230"></a> |
| <FONT color="green">231</FONT> final String className = classGen.getClassName();<a name="line.231"></a> |
| <FONT color="green">232</FONT> final int current = methodGen.getLocalIndex("current");<a name="line.232"></a> |
| <FONT color="green">233</FONT> <a name="line.233"></a> |
| <FONT color="green">234</FONT> // Push required parameters <a name="line.234"></a> |
| <FONT color="green">235</FONT> il.append(classGen.loadTranslet());<a name="line.235"></a> |
| <FONT color="green">236</FONT> if (classGen.isExternal()) {<a name="line.236"></a> |
| <FONT color="green">237</FONT> il.append(new CHECKCAST(cpg.addClass(className)));<a name="line.237"></a> |
| <FONT color="green">238</FONT> }<a name="line.238"></a> |
| <FONT color="green">239</FONT> il.append(methodGen.loadDOM());<a name="line.239"></a> |
| <FONT color="green">240</FONT> <a name="line.240"></a> |
| <FONT color="green">241</FONT> // Create new instance of DOM class (with RTF_INITIAL_SIZE nodes)<a name="line.241"></a> |
| <FONT color="green">242</FONT> il.append(methodGen.loadDOM());<a name="line.242"></a> |
| <FONT color="green">243</FONT> int index = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.243"></a> |
| <FONT color="green">244</FONT> "getResultTreeFrag",<a name="line.244"></a> |
| <FONT color="green">245</FONT> "(IZ)" + DOM_INTF_SIG);<a name="line.245"></a> |
| <FONT color="green">246</FONT> il.append(new PUSH(cpg, RTF_INITIAL_SIZE));<a name="line.246"></a> |
| <FONT color="green">247</FONT> il.append(new PUSH(cpg, false));<a name="line.247"></a> |
| <FONT color="green">248</FONT> il.append(new INVOKEINTERFACE(index,3));<a name="line.248"></a> |
| <FONT color="green">249</FONT> il.append(DUP);<a name="line.249"></a> |
| <FONT color="green">250</FONT> <a name="line.250"></a> |
| <FONT color="green">251</FONT> // Store new DOM into a local variable<a name="line.251"></a> |
| <FONT color="green">252</FONT> newDom = methodGen.addLocalVariable("rt_to_reference_dom", <a name="line.252"></a> |
| <FONT color="green">253</FONT> Util.getJCRefType(DOM_INTF_SIG),<a name="line.253"></a> |
| <FONT color="green">254</FONT> null, null);<a name="line.254"></a> |
| <FONT color="green">255</FONT> il.append(new CHECKCAST(cpg.addClass(DOM_INTF_SIG)));<a name="line.255"></a> |
| <FONT color="green">256</FONT> newDom.setStart(il.append(new ASTORE(newDom.getIndex())));<a name="line.256"></a> |
| <FONT color="green">257</FONT> <a name="line.257"></a> |
| <FONT color="green">258</FONT> // Overwrite old handler with DOM handler<a name="line.258"></a> |
| <FONT color="green">259</FONT> index = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.259"></a> |
| <FONT color="green">260</FONT> "getOutputDomBuilder",<a name="line.260"></a> |
| <FONT color="green">261</FONT> "()" + TRANSLET_OUTPUT_SIG);<a name="line.261"></a> |
| <FONT color="green">262</FONT> <a name="line.262"></a> |
| <FONT color="green">263</FONT> il.append(new INVOKEINTERFACE(index,1));<a name="line.263"></a> |
| <FONT color="green">264</FONT> //index = cpg.addMethodref(DOM_IMPL,<a name="line.264"></a> |
| <FONT color="green">265</FONT> // "getOutputDomBuilder", <a name="line.265"></a> |
| <FONT color="green">266</FONT> // "()" + TRANSLET_OUTPUT_SIG);<a name="line.266"></a> |
| <FONT color="green">267</FONT> //il.append(new INVOKEVIRTUAL(index));<a name="line.267"></a> |
| <FONT color="green">268</FONT> il.append(DUP);<a name="line.268"></a> |
| <FONT color="green">269</FONT> il.append(DUP);<a name="line.269"></a> |
| <FONT color="green">270</FONT> <a name="line.270"></a> |
| <FONT color="green">271</FONT> // Store DOM handler in a local in order to call endDocument()<a name="line.271"></a> |
| <FONT color="green">272</FONT> domBuilder =<a name="line.272"></a> |
| <FONT color="green">273</FONT> methodGen.addLocalVariable("rt_to_reference_handler", <a name="line.273"></a> |
| <FONT color="green">274</FONT> Util.getJCRefType(TRANSLET_OUTPUT_SIG),<a name="line.274"></a> |
| <FONT color="green">275</FONT> null, null);<a name="line.275"></a> |
| <FONT color="green">276</FONT> domBuilder.setStart(il.append(new ASTORE(domBuilder.getIndex())));<a name="line.276"></a> |
| <FONT color="green">277</FONT> <a name="line.277"></a> |
| <FONT color="green">278</FONT> // Call startDocument on the new handler<a name="line.278"></a> |
| <FONT color="green">279</FONT> index = cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE, <a name="line.279"></a> |
| <FONT color="green">280</FONT> "startDocument", "()V");<a name="line.280"></a> |
| <FONT color="green">281</FONT> il.append(new INVOKEINTERFACE(index, 1));<a name="line.281"></a> |
| <FONT color="green">282</FONT> <a name="line.282"></a> |
| <FONT color="green">283</FONT> // Call the method that implements this result tree<a name="line.283"></a> |
| <FONT color="green">284</FONT> index = cpg.addMethodref(className,<a name="line.284"></a> |
| <FONT color="green">285</FONT> _methodName,<a name="line.285"></a> |
| <FONT color="green">286</FONT> "("<a name="line.286"></a> |
| <FONT color="green">287</FONT> + DOM_INTF_SIG<a name="line.287"></a> |
| <FONT color="green">288</FONT> + TRANSLET_OUTPUT_SIG<a name="line.288"></a> |
| <FONT color="green">289</FONT> +")V");<a name="line.289"></a> |
| <FONT color="green">290</FONT> il.append(new INVOKEVIRTUAL(index));<a name="line.290"></a> |
| <FONT color="green">291</FONT> <a name="line.291"></a> |
| <FONT color="green">292</FONT> // Call endDocument on the DOM handler<a name="line.292"></a> |
| <FONT color="green">293</FONT> domBuilder.setEnd(il.append(new ALOAD(domBuilder.getIndex())));<a name="line.293"></a> |
| <FONT color="green">294</FONT> index = cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE, <a name="line.294"></a> |
| <FONT color="green">295</FONT> "endDocument", "()V");<a name="line.295"></a> |
| <FONT color="green">296</FONT> il.append(new INVOKEINTERFACE(index, 1));<a name="line.296"></a> |
| <FONT color="green">297</FONT> <a name="line.297"></a> |
| <FONT color="green">298</FONT> // Push the new DOM on the stack<a name="line.298"></a> |
| <FONT color="green">299</FONT> newDom.setEnd(il.append(new ALOAD(newDom.getIndex())));<a name="line.299"></a> |
| <FONT color="green">300</FONT> }<a name="line.300"></a> |
| <FONT color="green">301</FONT> }<a name="line.301"></a> |
| <FONT color="green">302</FONT> <a name="line.302"></a> |
| <FONT color="green">303</FONT> /**<a name="line.303"></a> |
| <FONT color="green">304</FONT> * Expects a result tree on the stack and pushes a node-set (iterator).<a name="line.304"></a> |
| <FONT color="green">305</FONT> * Note that the produced iterator is an iterator for the DOM that<a name="line.305"></a> |
| <FONT color="green">306</FONT> * contains the result tree, and not the DOM that is currently in use.<a name="line.306"></a> |
| <FONT color="green">307</FONT> * This conversion here will therefore not directly work with elements<a name="line.307"></a> |
| <FONT color="green">308</FONT> * such as <xsl:apply-templates> and <xsl:for-each> without the DOM<a name="line.308"></a> |
| <FONT color="green">309</FONT> * parameter/variable being updates as well.<a name="line.309"></a> |
| <FONT color="green">310</FONT> *<a name="line.310"></a> |
| <FONT color="green">311</FONT> * @param classGen A BCEL class generator<a name="line.311"></a> |
| <FONT color="green">312</FONT> * @param methodGen A BCEL method generator<a name="line.312"></a> |
| <FONT color="green">313</FONT> * @param type An instance of NodeSetType (any)<a name="line.313"></a> |
| <FONT color="green">314</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.314"></a> |
| <FONT color="green">315</FONT> */<a name="line.315"></a> |
| <FONT color="green">316</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.316"></a> |
| <FONT color="green">317</FONT> NodeSetType type) {<a name="line.317"></a> |
| <FONT color="green">318</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.318"></a> |
| <FONT color="green">319</FONT> final InstructionList il = methodGen.getInstructionList();<a name="line.319"></a> |
| <FONT color="green">320</FONT> <a name="line.320"></a> |
| <FONT color="green">321</FONT> // Put an extra copy of the result tree (DOM) on the stack<a name="line.321"></a> |
| <FONT color="green">322</FONT> il.append(DUP);<a name="line.322"></a> |
| <FONT color="green">323</FONT> <a name="line.323"></a> |
| <FONT color="green">324</FONT> // DOM adapters containing a result tree are not initialised with<a name="line.324"></a> |
| <FONT color="green">325</FONT> // translet-type to DOM-type mapping. This must be done now for<a name="line.325"></a> |
| <FONT color="green">326</FONT> // XPath expressions and patterns to work for the iterator we create.<a name="line.326"></a> |
| <FONT color="green">327</FONT> il.append(classGen.loadTranslet()); // get names array<a name="line.327"></a> |
| <FONT color="green">328</FONT> il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,<a name="line.328"></a> |
| <FONT color="green">329</FONT> NAMES_INDEX,<a name="line.329"></a> |
| <FONT color="green">330</FONT> NAMES_INDEX_SIG)));<a name="line.330"></a> |
| <FONT color="green">331</FONT> il.append(classGen.loadTranslet()); // get uris array<a name="line.331"></a> |
| <FONT color="green">332</FONT> il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,<a name="line.332"></a> |
| <FONT color="green">333</FONT> URIS_INDEX,<a name="line.333"></a> |
| <FONT color="green">334</FONT> URIS_INDEX_SIG)));<a name="line.334"></a> |
| <FONT color="green">335</FONT> il.append(classGen.loadTranslet()); // get types array<a name="line.335"></a> |
| <FONT color="green">336</FONT> il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,<a name="line.336"></a> |
| <FONT color="green">337</FONT> TYPES_INDEX,<a name="line.337"></a> |
| <FONT color="green">338</FONT> TYPES_INDEX_SIG)));<a name="line.338"></a> |
| <FONT color="green">339</FONT> il.append(classGen.loadTranslet()); // get namespaces array<a name="line.339"></a> |
| <FONT color="green">340</FONT> il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,<a name="line.340"></a> |
| <FONT color="green">341</FONT> NAMESPACE_INDEX,<a name="line.341"></a> |
| <FONT color="green">342</FONT> NAMESPACE_INDEX_SIG)));<a name="line.342"></a> |
| <FONT color="green">343</FONT> // Pass the type mappings to the DOM adapter<a name="line.343"></a> |
| <FONT color="green">344</FONT> final int mapping = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.344"></a> |
| <FONT color="green">345</FONT> "setupMapping",<a name="line.345"></a> |
| <FONT color="green">346</FONT> "(["+STRING_SIG+<a name="line.346"></a> |
| <FONT color="green">347</FONT> "["+STRING_SIG+<a name="line.347"></a> |
| <FONT color="green">348</FONT> "[I" +<a name="line.348"></a> |
| <FONT color="green">349</FONT> "["+STRING_SIG+")V");<a name="line.349"></a> |
| <FONT color="green">350</FONT> il.append(new INVOKEINTERFACE(mapping, 5));<a name="line.350"></a> |
| <FONT color="green">351</FONT> il.append(DUP);<a name="line.351"></a> |
| <FONT color="green">352</FONT> <a name="line.352"></a> |
| <FONT color="green">353</FONT> // Create an iterator for the root node of the DOM adapter<a name="line.353"></a> |
| <FONT color="green">354</FONT> final int iter = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.354"></a> |
| <FONT color="green">355</FONT> "getIterator",<a name="line.355"></a> |
| <FONT color="green">356</FONT> "()"+NODE_ITERATOR_SIG);<a name="line.356"></a> |
| <FONT color="green">357</FONT> il.append(new INVOKEINTERFACE(iter, 1)); <a name="line.357"></a> |
| <FONT color="green">358</FONT> }<a name="line.358"></a> |
| <FONT color="green">359</FONT> <a name="line.359"></a> |
| <FONT color="green">360</FONT> /**<a name="line.360"></a> |
| <FONT color="green">361</FONT> * Subsume result tree into ObjectType.<a name="line.361"></a> |
| <FONT color="green">362</FONT> *<a name="line.362"></a> |
| <FONT color="green">363</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.363"></a> |
| <FONT color="green">364</FONT> */<a name="line.364"></a> |
| <FONT color="green">365</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.365"></a> |
| <FONT color="green">366</FONT> ObjectType type) {<a name="line.366"></a> |
| <FONT color="green">367</FONT> methodGen.getInstructionList().append(NOP); <a name="line.367"></a> |
| <FONT color="green">368</FONT> }<a name="line.368"></a> |
| <FONT color="green">369</FONT> <a name="line.369"></a> |
| <FONT color="green">370</FONT> /**<a name="line.370"></a> |
| <FONT color="green">371</FONT> * Translates a result tree into a non-synthesized boolean.<a name="line.371"></a> |
| <FONT color="green">372</FONT> * It does not push a 0 or a 1 but instead returns branchhandle list<a name="line.372"></a> |
| <FONT color="green">373</FONT> * to be appended to the false list.<a name="line.373"></a> |
| <FONT color="green">374</FONT> *<a name="line.374"></a> |
| <FONT color="green">375</FONT> * @param classGen A BCEL class generator<a name="line.375"></a> |
| <FONT color="green">376</FONT> * @param methodGen A BCEL method generator<a name="line.376"></a> |
| <FONT color="green">377</FONT> * @param type An instance of BooleanType (any)<a name="line.377"></a> |
| <FONT color="green">378</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateToDesynthesized<a name="line.378"></a> |
| <FONT color="green">379</FONT> */<a name="line.379"></a> |
| <FONT color="green">380</FONT> public FlowList translateToDesynthesized(ClassGenerator classGen, <a name="line.380"></a> |
| <FONT color="green">381</FONT> MethodGenerator methodGen, <a name="line.381"></a> |
| <FONT color="green">382</FONT> BooleanType type) {<a name="line.382"></a> |
| <FONT color="green">383</FONT> final InstructionList il = methodGen.getInstructionList();<a name="line.383"></a> |
| <FONT color="green">384</FONT> translateTo(classGen, methodGen, Type.Boolean);<a name="line.384"></a> |
| <FONT color="green">385</FONT> return new FlowList(il.append(new IFEQ(null)));<a name="line.385"></a> |
| <FONT color="green">386</FONT> }<a name="line.386"></a> |
| <FONT color="green">387</FONT> <a name="line.387"></a> |
| <FONT color="green">388</FONT> /**<a name="line.388"></a> |
| <FONT color="green">389</FONT> * Translates a result tree to a Java type denoted by <code>clazz</code>. <a name="line.389"></a> |
| <FONT color="green">390</FONT> * Expects a result tree on the stack and pushes an object<a name="line.390"></a> |
| <FONT color="green">391</FONT> * of the appropriate type after coercion. Result trees are translated<a name="line.391"></a> |
| <FONT color="green">392</FONT> * to W3C Node or W3C NodeList and the translation is done<a name="line.392"></a> |
| <FONT color="green">393</FONT> * via node-set type.<a name="line.393"></a> |
| <FONT color="green">394</FONT> *<a name="line.394"></a> |
| <FONT color="green">395</FONT> * @param classGen A BCEL class generator<a name="line.395"></a> |
| <FONT color="green">396</FONT> * @param methodGen A BCEL method generator<a name="line.396"></a> |
| <FONT color="green">397</FONT> * @param clazz An reference to the Class to translate to<a name="line.397"></a> |
| <FONT color="green">398</FONT> * @see org.apache.xalan.xsltc.compiler.util.Type#translateTo<a name="line.398"></a> |
| <FONT color="green">399</FONT> */<a name="line.399"></a> |
| <FONT color="green">400</FONT> public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, <a name="line.400"></a> |
| <FONT color="green">401</FONT> Class clazz) {<a name="line.401"></a> |
| <FONT color="green">402</FONT> final String className = clazz.getName();<a name="line.402"></a> |
| <FONT color="green">403</FONT> final ConstantPoolGen cpg = classGen.getConstantPool();<a name="line.403"></a> |
| <FONT color="green">404</FONT> final InstructionList il = methodGen.getInstructionList();<a name="line.404"></a> |
| <FONT color="green">405</FONT> <a name="line.405"></a> |
| <FONT color="green">406</FONT> if (className.equals("org.w3c.dom.Node")) {<a name="line.406"></a> |
| <FONT color="green">407</FONT> translateTo(classGen, methodGen, Type.NodeSet);<a name="line.407"></a> |
| <FONT color="green">408</FONT> int index = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.408"></a> |
| <FONT color="green">409</FONT> MAKE_NODE,<a name="line.409"></a> |
| <FONT color="green">410</FONT> MAKE_NODE_SIG2);<a name="line.410"></a> |
| <FONT color="green">411</FONT> il.append(new INVOKEINTERFACE(index, 2));<a name="line.411"></a> |
| <FONT color="green">412</FONT> }<a name="line.412"></a> |
| <FONT color="green">413</FONT> else if (className.equals("org.w3c.dom.NodeList")) {<a name="line.413"></a> |
| <FONT color="green">414</FONT> translateTo(classGen, methodGen, Type.NodeSet);<a name="line.414"></a> |
| <FONT color="green">415</FONT> int index = cpg.addInterfaceMethodref(DOM_INTF,<a name="line.415"></a> |
| <FONT color="green">416</FONT> MAKE_NODE_LIST,<a name="line.416"></a> |
| <FONT color="green">417</FONT> MAKE_NODE_LIST_SIG2);<a name="line.417"></a> |
| <FONT color="green">418</FONT> il.append(new INVOKEINTERFACE(index, 2));<a name="line.418"></a> |
| <FONT color="green">419</FONT> }<a name="line.419"></a> |
| <FONT color="green">420</FONT> else if (className.equals("java.lang.Object")) {<a name="line.420"></a> |
| <FONT color="green">421</FONT> il.append(NOP);<a name="line.421"></a> |
| <FONT color="green">422</FONT> }<a name="line.422"></a> |
| <FONT color="green">423</FONT> else if (className.equals("java.lang.String")) {<a name="line.423"></a> |
| <FONT color="green">424</FONT> translateTo(classGen, methodGen, Type.String);<a name="line.424"></a> |
| <FONT color="green">425</FONT> }<a name="line.425"></a> |
| <FONT color="green">426</FONT> else {<a name="line.426"></a> |
| <FONT color="green">427</FONT> ErrorMsg err = new ErrorMsg(ErrorMsg.DATA_CONVERSION_ERR,<a name="line.427"></a> |
| <FONT color="green">428</FONT> toString(), className);<a name="line.428"></a> |
| <FONT color="green">429</FONT> classGen.getParser().reportError(Constants.FATAL, err);<a name="line.429"></a> |
| <FONT color="green">430</FONT> }<a name="line.430"></a> |
| <FONT color="green">431</FONT> }<a name="line.431"></a> |
| <FONT color="green">432</FONT> <a name="line.432"></a> |
| <FONT color="green">433</FONT> /**<a name="line.433"></a> |
| <FONT color="green">434</FONT> * Translates an object of this type to its boxed representation.<a name="line.434"></a> |
| <FONT color="green">435</FONT> */ <a name="line.435"></a> |
| <FONT color="green">436</FONT> public void translateBox(ClassGenerator classGen,<a name="line.436"></a> |
| <FONT color="green">437</FONT> MethodGenerator methodGen) {<a name="line.437"></a> |
| <FONT color="green">438</FONT> translateTo(classGen, methodGen, Type.Reference);<a name="line.438"></a> |
| <FONT color="green">439</FONT> }<a name="line.439"></a> |
| <FONT color="green">440</FONT> <a name="line.440"></a> |
| <FONT color="green">441</FONT> /**<a name="line.441"></a> |
| <FONT color="green">442</FONT> * Translates an object of this type to its unboxed representation.<a name="line.442"></a> |
| <FONT color="green">443</FONT> */ <a name="line.443"></a> |
| <FONT color="green">444</FONT> public void translateUnBox(ClassGenerator classGen,<a name="line.444"></a> |
| <FONT color="green">445</FONT> MethodGenerator methodGen) {<a name="line.445"></a> |
| <FONT color="green">446</FONT> methodGen.getInstructionList().append(NOP);<a name="line.446"></a> |
| <FONT color="green">447</FONT> }<a name="line.447"></a> |
| <FONT color="green">448</FONT> <a name="line.448"></a> |
| <FONT color="green">449</FONT> /**<a name="line.449"></a> |
| <FONT color="green">450</FONT> * Returns the class name of an internal type's external representation.<a name="line.450"></a> |
| <FONT color="green">451</FONT> */<a name="line.451"></a> |
| <FONT color="green">452</FONT> public String getClassName() {<a name="line.452"></a> |
| <FONT color="green">453</FONT> return(DOM_INTF);<a name="line.453"></a> |
| <FONT color="green">454</FONT> }<a name="line.454"></a> |
| <FONT color="green">455</FONT> <a name="line.455"></a> |
| <FONT color="green">456</FONT> public Instruction LOAD(int slot) {<a name="line.456"></a> |
| <FONT color="green">457</FONT> return new ALOAD(slot);<a name="line.457"></a> |
| <FONT color="green">458</FONT> }<a name="line.458"></a> |
| <FONT color="green">459</FONT> <a name="line.459"></a> |
| <FONT color="green">460</FONT> public Instruction STORE(int slot) {<a name="line.460"></a> |
| <FONT color="green">461</FONT> return new ASTORE(slot);<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> |
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