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<pre><span class="sourceLineNo">001</span>package serp.bytecode;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import java.io.*;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import java.util.*;<a name="line.4"></a>
<span class="sourceLineNo">005</span><a name="line.5"></a>
<span class="sourceLineNo">006</span>import serp.bytecode.lowlevel.*;<a name="line.6"></a>
<span class="sourceLineNo">007</span>import serp.bytecode.visitor.*;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import serp.util.*;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>/**<a name="line.10"></a>
<span class="sourceLineNo">011</span> * The Project represents a working set of classes. It caches parsed<a name="line.11"></a>
<span class="sourceLineNo">012</span> * bytecode and is responsible for bytecode class creation. Currently<a name="line.12"></a>
<span class="sourceLineNo">013</span> * changes made in one class are <strong>not</strong> reflected in other<a name="line.13"></a>
<span class="sourceLineNo">014</span> * classes, though this will be an option in the future.<a name="line.14"></a>
<span class="sourceLineNo">015</span> *<a name="line.15"></a>
<span class="sourceLineNo">016</span> * <p>Bytecode that has been parsed is held in a cache so that retrieving<a name="line.16"></a>
<span class="sourceLineNo">017</span> * a class with the same name multiple times always returns the same<a name="line.17"></a>
<span class="sourceLineNo">018</span> * {@link BCClass} instance.</p><a name="line.18"></a>
<span class="sourceLineNo">019</span> *<a name="line.19"></a>
<span class="sourceLineNo">020</span> * <p>A future goal is to eventually have facilities for traversing jars<a name="line.20"></a>
<span class="sourceLineNo">021</span> * or directory structures to find classes that meet a given criteria (such<a name="line.21"></a>
<span class="sourceLineNo">022</span> * as implementing a given interface, etc) and to perform operations on entire<a name="line.22"></a>
<span class="sourceLineNo">023</span> * projects, similar to aspect-oriented programming.</p><a name="line.23"></a>
<span class="sourceLineNo">024</span> *<a name="line.24"></a>
<span class="sourceLineNo">025</span> * @author Abe White<a name="line.25"></a>
<span class="sourceLineNo">026</span> */<a name="line.26"></a>
<span class="sourceLineNo">027</span>public class Project implements VisitAcceptor {<a name="line.27"></a>
<span class="sourceLineNo">028</span> private final String _name;<a name="line.28"></a>
<span class="sourceLineNo">029</span> private final HashMap _cache = new HashMap();<a name="line.29"></a>
<span class="sourceLineNo">030</span> private final NameCache _names = new NameCache();<a name="line.30"></a>
<span class="sourceLineNo">031</span><a name="line.31"></a>
<span class="sourceLineNo">032</span> /**<a name="line.32"></a>
<span class="sourceLineNo">033</span> * Default constructor.<a name="line.33"></a>
<span class="sourceLineNo">034</span> */<a name="line.34"></a>
<span class="sourceLineNo">035</span> public Project() {<a name="line.35"></a>
<span class="sourceLineNo">036</span> this(null);<a name="line.36"></a>
<span class="sourceLineNo">037</span> }<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span> /**<a name="line.39"></a>
<span class="sourceLineNo">040</span> * Construct a named project.<a name="line.40"></a>
<span class="sourceLineNo">041</span> */<a name="line.41"></a>
<span class="sourceLineNo">042</span> public Project(String name) {<a name="line.42"></a>
<span class="sourceLineNo">043</span> _name = name;<a name="line.43"></a>
<span class="sourceLineNo">044</span> }<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span> /**<a name="line.46"></a>
<span class="sourceLineNo">047</span> * Return the project name, or null if unset.<a name="line.47"></a>
<span class="sourceLineNo">048</span> */<a name="line.48"></a>
<span class="sourceLineNo">049</span> public String getName() {<a name="line.49"></a>
<span class="sourceLineNo">050</span> return _name;<a name="line.50"></a>
<span class="sourceLineNo">051</span> }<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
<span class="sourceLineNo">053</span> /**<a name="line.53"></a>
<span class="sourceLineNo">054</span> * Return the name cache, which includes utilities for converting names<a name="line.54"></a>
<span class="sourceLineNo">055</span> * from internal to external form and vice versa.<a name="line.55"></a>
<span class="sourceLineNo">056</span> */<a name="line.56"></a>
<span class="sourceLineNo">057</span> public NameCache getNameCache() {<a name="line.57"></a>
<span class="sourceLineNo">058</span> return _names;<a name="line.58"></a>
<span class="sourceLineNo">059</span> }<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span> /**<a name="line.61"></a>
<span class="sourceLineNo">062</span> * Load a class with the given name.<a name="line.62"></a>
<span class="sourceLineNo">063</span> *<a name="line.63"></a>
<span class="sourceLineNo">064</span> * @see #loadClass(String,ClassLoader)<a name="line.64"></a>
<span class="sourceLineNo">065</span> */<a name="line.65"></a>
<span class="sourceLineNo">066</span> public BCClass loadClass(String name) {<a name="line.66"></a>
<span class="sourceLineNo">067</span> return loadClass(name, null);<a name="line.67"></a>
<span class="sourceLineNo">068</span> }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span> /**<a name="line.70"></a>
<span class="sourceLineNo">071</span> * Load the bytecode for the class with the given name.<a name="line.71"></a>
<span class="sourceLineNo">072</span> * If a {@link BCClass} with the given name already exists in this project,<a name="line.72"></a>
<span class="sourceLineNo">073</span> * it will be returned. Otherwise, a new {@link BCClass} will be created<a name="line.73"></a>
<span class="sourceLineNo">074</span> * with the given name and returned. If the name represents an existing<a name="line.74"></a>
<span class="sourceLineNo">075</span> * type, the returned instance will contain the parsed bytecode for<a name="line.75"></a>
<span class="sourceLineNo">076</span> * that type. If the name is of a primitive or array type, the returned<a name="line.76"></a>
<span class="sourceLineNo">077</span> * instance will act accordingly.<a name="line.77"></a>
<span class="sourceLineNo">078</span> *<a name="line.78"></a>
<span class="sourceLineNo">079</span> * @param name the name of the class, including package<a name="line.79"></a>
<span class="sourceLineNo">080</span> * @param loader the class loader to use to search for an existing<a name="line.80"></a>
<span class="sourceLineNo">081</span> * class with the given name; if null defaults to the<a name="line.81"></a>
<span class="sourceLineNo">082</span> * context loader of the current thread<a name="line.82"></a>
<span class="sourceLineNo">083</span> * @throws RuntimeException on parse error<a name="line.83"></a>
<span class="sourceLineNo">084</span> */<a name="line.84"></a>
<span class="sourceLineNo">085</span> public BCClass loadClass(String name, ClassLoader loader) {<a name="line.85"></a>
<span class="sourceLineNo">086</span> // convert to proper Class.forName() form<a name="line.86"></a>
<span class="sourceLineNo">087</span> name = _names.getExternalForm(name, false);<a name="line.87"></a>
<span class="sourceLineNo">088</span><a name="line.88"></a>
<span class="sourceLineNo">089</span> BCClass cached = checkCache(name);<a name="line.89"></a>
<span class="sourceLineNo">090</span> if (cached != null)<a name="line.90"></a>
<span class="sourceLineNo">091</span> return cached;<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span> // check for existing type<a name="line.93"></a>
<span class="sourceLineNo">094</span> if (loader == null)<a name="line.94"></a>
<span class="sourceLineNo">095</span> loader = Thread.currentThread().getContextClassLoader();<a name="line.95"></a>
<span class="sourceLineNo">096</span> try {<a name="line.96"></a>
<span class="sourceLineNo">097</span> return loadClass(Strings.toClass(name, loader));<a name="line.97"></a>
<span class="sourceLineNo">098</span> } catch (Exception e) {<a name="line.98"></a>
<span class="sourceLineNo">099</span> }<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span> String componentName = _names.getComponentName(name);<a name="line.101"></a>
<span class="sourceLineNo">102</span> BCClass ret = new BCClass(this);<a name="line.102"></a>
<span class="sourceLineNo">103</span> if (componentName != null)<a name="line.103"></a>
<span class="sourceLineNo">104</span> ret.setState(new ArrayState(name, componentName));<a name="line.104"></a>
<span class="sourceLineNo">105</span> else {<a name="line.105"></a>
<span class="sourceLineNo">106</span> ret.setState(new ObjectState(_names));<a name="line.106"></a>
<span class="sourceLineNo">107</span> ret.setName(name);<a name="line.107"></a>
<span class="sourceLineNo">108</span> ret.setSuperclass(Object.class);<a name="line.108"></a>
<span class="sourceLineNo">109</span> }<a name="line.109"></a>
<span class="sourceLineNo">110</span> cache(name, ret);<a name="line.110"></a>
<span class="sourceLineNo">111</span> return ret;<a name="line.111"></a>
<span class="sourceLineNo">112</span> }<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span> /**<a name="line.114"></a>
<span class="sourceLineNo">115</span> * Load the bytecode for the given class.<a name="line.115"></a>
<span class="sourceLineNo">116</span> * If a {@link BCClass} with the name of the given class already exists in<a name="line.116"></a>
<span class="sourceLineNo">117</span> * this project, it will be returned. Otherwise, the bytecode of the given<a name="line.117"></a>
<span class="sourceLineNo">118</span> * class will be parsed and returned as a new {@link BCClass}. If the<a name="line.118"></a>
<span class="sourceLineNo">119</span> * given class is an array or primitive type, the returned instance will<a name="line.119"></a>
<span class="sourceLineNo">120</span> * act accordingly.<a name="line.120"></a>
<span class="sourceLineNo">121</span> *<a name="line.121"></a>
<span class="sourceLineNo">122</span> * @param type the class to parse<a name="line.122"></a>
<span class="sourceLineNo">123</span> * @throws RuntimeException on parse error<a name="line.123"></a>
<span class="sourceLineNo">124</span> */<a name="line.124"></a>
<span class="sourceLineNo">125</span> public BCClass loadClass(Class type) {<a name="line.125"></a>
<span class="sourceLineNo">126</span> BCClass cached = checkCache(type.getName());<a name="line.126"></a>
<span class="sourceLineNo">127</span> if (cached != null)<a name="line.127"></a>
<span class="sourceLineNo">128</span> return cached;<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span> BCClass ret = new BCClass(this);<a name="line.130"></a>
<span class="sourceLineNo">131</span> if (type.isPrimitive())<a name="line.131"></a>
<span class="sourceLineNo">132</span> ret.setState(new PrimitiveState(type, _names));<a name="line.132"></a>
<span class="sourceLineNo">133</span> else if (type.isArray())<a name="line.133"></a>
<span class="sourceLineNo">134</span> ret.setState(new ArrayState(type.getName(), _names.getExternalForm<a name="line.134"></a>
<span class="sourceLineNo">135</span> (type.getComponentType().getName(), false)));<a name="line.135"></a>
<span class="sourceLineNo">136</span> else {<a name="line.136"></a>
<span class="sourceLineNo">137</span> ret.setState(new ObjectState(_names));<a name="line.137"></a>
<span class="sourceLineNo">138</span> try {<a name="line.138"></a>
<span class="sourceLineNo">139</span> ret.read(type);<a name="line.139"></a>
<span class="sourceLineNo">140</span> } catch (IOException ioe) {<a name="line.140"></a>
<span class="sourceLineNo">141</span> throw new RuntimeException(ioe.toString());<a name="line.141"></a>
<span class="sourceLineNo">142</span> }<a name="line.142"></a>
<span class="sourceLineNo">143</span> }<a name="line.143"></a>
<span class="sourceLineNo">144</span> cache(type.getName(), ret);<a name="line.144"></a>
<span class="sourceLineNo">145</span> return ret;<a name="line.145"></a>
<span class="sourceLineNo">146</span> }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span> /**<a name="line.148"></a>
<span class="sourceLineNo">149</span> * Load the bytecode from the given class file.<a name="line.149"></a>
<span class="sourceLineNo">150</span> * If this project already contains the class in the given file, it will<a name="line.150"></a>
<span class="sourceLineNo">151</span> * be returned. Otherwise a new {@link BCClass} will be created from the<a name="line.151"></a>
<span class="sourceLineNo">152</span> * given bytecode.<a name="line.152"></a>
<span class="sourceLineNo">153</span> *<a name="line.153"></a>
<span class="sourceLineNo">154</span> * @throws RuntimeException on parse error<a name="line.154"></a>
<span class="sourceLineNo">155</span> */<a name="line.155"></a>
<span class="sourceLineNo">156</span> public BCClass loadClass(File classFile) {<a name="line.156"></a>
<span class="sourceLineNo">157</span> return loadClass(classFile, null);<a name="line.157"></a>
<span class="sourceLineNo">158</span> }<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span> /**<a name="line.160"></a>
<span class="sourceLineNo">161</span> * Load the bytecode from the given class file.<a name="line.161"></a>
<span class="sourceLineNo">162</span> * If this project already contains the class in the given file, it will<a name="line.162"></a>
<span class="sourceLineNo">163</span> * be returned. Otherwise a new {@link BCClass} will be created from the<a name="line.163"></a>
<span class="sourceLineNo">164</span> * given bytecode.<a name="line.164"></a>
<span class="sourceLineNo">165</span> *<a name="line.165"></a>
<span class="sourceLineNo">166</span> * @throws RuntimeException on parse error<a name="line.166"></a>
<span class="sourceLineNo">167</span> */<a name="line.167"></a>
<span class="sourceLineNo">168</span> public BCClass loadClass(File classFile, ClassLoader loader) {<a name="line.168"></a>
<span class="sourceLineNo">169</span> // parse the bytecode from the file<a name="line.169"></a>
<span class="sourceLineNo">170</span> BCClass ret = new BCClass(this);<a name="line.170"></a>
<span class="sourceLineNo">171</span> ret.setState(new ObjectState(_names));<a name="line.171"></a>
<span class="sourceLineNo">172</span> try {<a name="line.172"></a>
<span class="sourceLineNo">173</span> ret.read(classFile, loader);<a name="line.173"></a>
<span class="sourceLineNo">174</span> } catch (IOException ioe) {<a name="line.174"></a>
<span class="sourceLineNo">175</span> throw new RuntimeException(ioe.toString());<a name="line.175"></a>
<span class="sourceLineNo">176</span> }<a name="line.176"></a>
<span class="sourceLineNo">177</span><a name="line.177"></a>
<span class="sourceLineNo">178</span> String name = ret.getName();<a name="line.178"></a>
<span class="sourceLineNo">179</span> BCClass cached = checkCache(name);<a name="line.179"></a>
<span class="sourceLineNo">180</span> if (cached != null)<a name="line.180"></a>
<span class="sourceLineNo">181</span> return cached;<a name="line.181"></a>
<span class="sourceLineNo">182</span><a name="line.182"></a>
<span class="sourceLineNo">183</span> cache(name, ret);<a name="line.183"></a>
<span class="sourceLineNo">184</span> return ret;<a name="line.184"></a>
<span class="sourceLineNo">185</span> }<a name="line.185"></a>
<span class="sourceLineNo">186</span><a name="line.186"></a>
<span class="sourceLineNo">187</span> /**<a name="line.187"></a>
<span class="sourceLineNo">188</span> * Load the bytecode from the given stream.<a name="line.188"></a>
<span class="sourceLineNo">189</span> * If this project already contains the class in the given stream,<a name="line.189"></a>
<span class="sourceLineNo">190</span> * it will be returned. Otherwise a new {@link BCClass} will be created<a name="line.190"></a>
<span class="sourceLineNo">191</span> * from the given bytecode.<a name="line.191"></a>
<span class="sourceLineNo">192</span> *<a name="line.192"></a>
<span class="sourceLineNo">193</span> * @throws RuntimeException on parse error<a name="line.193"></a>
<span class="sourceLineNo">194</span> */<a name="line.194"></a>
<span class="sourceLineNo">195</span> public BCClass loadClass(InputStream in) {<a name="line.195"></a>
<span class="sourceLineNo">196</span> return loadClass(in, null);<a name="line.196"></a>
<span class="sourceLineNo">197</span> }<a name="line.197"></a>
<span class="sourceLineNo">198</span><a name="line.198"></a>
<span class="sourceLineNo">199</span> /**<a name="line.199"></a>
<span class="sourceLineNo">200</span> * Load the bytecode from the given stream.<a name="line.200"></a>
<span class="sourceLineNo">201</span> * If this project already contains the class in the given stream,<a name="line.201"></a>
<span class="sourceLineNo">202</span> * it will be returned. Otherwise a new {@link BCClass} will be created<a name="line.202"></a>
<span class="sourceLineNo">203</span> * from the given bytecode.<a name="line.203"></a>
<span class="sourceLineNo">204</span> *<a name="line.204"></a>
<span class="sourceLineNo">205</span> * @throws RuntimeException on parse error<a name="line.205"></a>
<span class="sourceLineNo">206</span> */<a name="line.206"></a>
<span class="sourceLineNo">207</span> public BCClass loadClass(InputStream in, ClassLoader loader) {<a name="line.207"></a>
<span class="sourceLineNo">208</span> BCClass ret = new BCClass(this);<a name="line.208"></a>
<span class="sourceLineNo">209</span> ret.setState(new ObjectState(_names));<a name="line.209"></a>
<span class="sourceLineNo">210</span> try {<a name="line.210"></a>
<span class="sourceLineNo">211</span> ret.read(in, loader);<a name="line.211"></a>
<span class="sourceLineNo">212</span> } catch (IOException ioe) {<a name="line.212"></a>
<span class="sourceLineNo">213</span> throw new RuntimeException(ioe.toString());<a name="line.213"></a>
<span class="sourceLineNo">214</span> }<a name="line.214"></a>
<span class="sourceLineNo">215</span><a name="line.215"></a>
<span class="sourceLineNo">216</span> String name = ret.getName();<a name="line.216"></a>
<span class="sourceLineNo">217</span> BCClass cached = checkCache(name);<a name="line.217"></a>
<span class="sourceLineNo">218</span> if (cached != null)<a name="line.218"></a>
<span class="sourceLineNo">219</span> return cached;<a name="line.219"></a>
<span class="sourceLineNo">220</span><a name="line.220"></a>
<span class="sourceLineNo">221</span> cache(name, ret);<a name="line.221"></a>
<span class="sourceLineNo">222</span> return ret;<a name="line.222"></a>
<span class="sourceLineNo">223</span> }<a name="line.223"></a>
<span class="sourceLineNo">224</span><a name="line.224"></a>
<span class="sourceLineNo">225</span> /**<a name="line.225"></a>
<span class="sourceLineNo">226</span> * Import the given bytecode from another project. If a {@link BCClass}<a name="line.226"></a>
<span class="sourceLineNo">227</span> * with the same name already exists in this project, it will be returned.<a name="line.227"></a>
<span class="sourceLineNo">228</span> * Otherwise, a new {@link BCClass} will be created from the<a name="line.228"></a>
<span class="sourceLineNo">229</span> * information in the given class.<a name="line.229"></a>
<span class="sourceLineNo">230</span> */<a name="line.230"></a>
<span class="sourceLineNo">231</span> public BCClass loadClass(BCClass bc) {<a name="line.231"></a>
<span class="sourceLineNo">232</span> String name = bc.getName();<a name="line.232"></a>
<span class="sourceLineNo">233</span> BCClass cached = checkCache(name);<a name="line.233"></a>
<span class="sourceLineNo">234</span> if (cached != null)<a name="line.234"></a>
<span class="sourceLineNo">235</span> return cached;<a name="line.235"></a>
<span class="sourceLineNo">236</span><a name="line.236"></a>
<span class="sourceLineNo">237</span> BCClass ret = new BCClass(this);<a name="line.237"></a>
<span class="sourceLineNo">238</span> if (bc.isPrimitive())<a name="line.238"></a>
<span class="sourceLineNo">239</span> ret.setState(new PrimitiveState(bc.getType(), _names));<a name="line.239"></a>
<span class="sourceLineNo">240</span> else if (bc.isArray())<a name="line.240"></a>
<span class="sourceLineNo">241</span> ret.setState(new ArrayState(bc.getName(), bc.getComponentName()));<a name="line.241"></a>
<span class="sourceLineNo">242</span> else {<a name="line.242"></a>
<span class="sourceLineNo">243</span> ret.setState(new ObjectState(_names));<a name="line.243"></a>
<span class="sourceLineNo">244</span> ret.read(bc);<a name="line.244"></a>
<span class="sourceLineNo">245</span> }<a name="line.245"></a>
<span class="sourceLineNo">246</span><a name="line.246"></a>
<span class="sourceLineNo">247</span> cache(name, ret);<a name="line.247"></a>
<span class="sourceLineNo">248</span> return ret;<a name="line.248"></a>
<span class="sourceLineNo">249</span> }<a name="line.249"></a>
<span class="sourceLineNo">250</span><a name="line.250"></a>
<span class="sourceLineNo">251</span> /**<a name="line.251"></a>
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<span class="sourceLineNo">254</span> public void clear() {<a name="line.254"></a>
<span class="sourceLineNo">255</span> Collection values = _cache.values();<a name="line.255"></a>
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<span class="sourceLineNo">262</span> _names.clear();<a name="line.262"></a>
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<span class="sourceLineNo">264</span><a name="line.264"></a>
<span class="sourceLineNo">265</span> /**<a name="line.265"></a>
<span class="sourceLineNo">266</span> * Remove a class from this project. After removal, the result of any<a name="line.266"></a>
<span class="sourceLineNo">267</span> * further operations on the class is undefined.<a name="line.267"></a>
<span class="sourceLineNo">268</span> *<a name="line.268"></a>
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<span class="sourceLineNo">270</span> */<a name="line.270"></a>
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<span class="sourceLineNo">274</span><a name="line.274"></a>
<span class="sourceLineNo">275</span> /**<a name="line.275"></a>
<span class="sourceLineNo">276</span> * Remove a class from this project. After removal, the result of any<a name="line.276"></a>
<span class="sourceLineNo">277</span> * further operations on the class is undefined.<a name="line.277"></a>
<span class="sourceLineNo">278</span> *<a name="line.278"></a>
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<span class="sourceLineNo">281</span> public boolean removeClass(Class type) {<a name="line.281"></a>
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<span class="sourceLineNo">284</span> return removeClass(checkCache(type.getName()));<a name="line.284"></a>
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<span class="sourceLineNo">286</span><a name="line.286"></a>
<span class="sourceLineNo">287</span> /**<a name="line.287"></a>
<span class="sourceLineNo">288</span> * Remove a class from this project. After removal, the result of any<a name="line.288"></a>
<span class="sourceLineNo">289</span> * further operations on the class is undefined.<a name="line.289"></a>
<span class="sourceLineNo">290</span> *<a name="line.290"></a>
<span class="sourceLineNo">291</span> * @return true if the class belonged to this project, false otherwise<a name="line.291"></a>
<span class="sourceLineNo">292</span> */<a name="line.292"></a>
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<span class="sourceLineNo">296</span> if (!removeFromCache(type.getName(), type))<a name="line.296"></a>
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<span class="sourceLineNo">301</span><a name="line.301"></a>
<span class="sourceLineNo">302</span> /**<a name="line.302"></a>
<span class="sourceLineNo">303</span> * Return all loaded classes in the project.<a name="line.303"></a>
<span class="sourceLineNo">304</span> */<a name="line.304"></a>
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<span class="sourceLineNo">310</span> /**<a name="line.310"></a>
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<span class="sourceLineNo">316</span><a name="line.316"></a>
<span class="sourceLineNo">317</span> /**<a name="line.317"></a>
<span class="sourceLineNo">318</span> * Return true if the project already contains the given class.<a name="line.318"></a>
<span class="sourceLineNo">319</span> */<a name="line.319"></a>
<span class="sourceLineNo">320</span> public boolean containsClass(Class type) {<a name="line.320"></a>
<span class="sourceLineNo">321</span> return (type == null) ? false : containsClass(type.getName());<a name="line.321"></a>
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<span class="sourceLineNo">323</span><a name="line.323"></a>
<span class="sourceLineNo">324</span> /**<a name="line.324"></a>
<span class="sourceLineNo">325</span> * Return true if the project already contains the given class.<a name="line.325"></a>
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<span class="sourceLineNo">327</span> public boolean containsClass(BCClass type) {<a name="line.327"></a>
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<span class="sourceLineNo">330</span><a name="line.330"></a>
<span class="sourceLineNo">331</span> public void acceptVisit(BCVisitor visit) {<a name="line.331"></a>
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<span class="sourceLineNo">333</span> BCClass[] classes = getClasses();<a name="line.333"></a>
<span class="sourceLineNo">334</span> for (int i = 0; i < classes.length; i++)<a name="line.334"></a>
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<span class="sourceLineNo">338</span><a name="line.338"></a>
<span class="sourceLineNo">339</span> /**<a name="line.339"></a>
<span class="sourceLineNo">340</span> * Renames the given class within this project. Used internally by<a name="line.340"></a>
<span class="sourceLineNo">341</span> * {@link BCClass} instances when their name is modified.<a name="line.341"></a>
<span class="sourceLineNo">342</span> *<a name="line.342"></a>
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<span class="sourceLineNo">348</span><a name="line.348"></a>
<span class="sourceLineNo">349</span> BCClass cached = (BCClass) checkCache(newName);<a name="line.349"></a>
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<span class="sourceLineNo">351</span> throw new IllegalStateException("A class with name " + newName +<a name="line.351"></a>
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<span class="sourceLineNo">353</span><a name="line.353"></a>
<span class="sourceLineNo">354</span> removeFromCache(oldName, bc);<a name="line.354"></a>
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<span class="sourceLineNo">357</span><a name="line.357"></a>
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<span class="sourceLineNo">364</span><a name="line.364"></a>
<span class="sourceLineNo">365</span> /**<a name="line.365"></a>
<span class="sourceLineNo">366</span> * Cache a class.<a name="line.366"></a>
<span class="sourceLineNo">367</span> */<a name="line.367"></a>
<span class="sourceLineNo">368</span> private void cache(String name, BCClass bc) {<a name="line.368"></a>
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<span class="sourceLineNo">371</span><a name="line.371"></a>
<span class="sourceLineNo">372</span> /**<a name="line.372"></a>
<span class="sourceLineNo">373</span> * Remove a cached class.<a name="line.373"></a>
<span class="sourceLineNo">374</span> */<a name="line.374"></a>
<span class="sourceLineNo">375</span> private boolean removeFromCache(String name, BCClass bc) {<a name="line.375"></a>
<span class="sourceLineNo">376</span> BCClass rem = (BCClass) checkCache(name);<a name="line.376"></a>
<span class="sourceLineNo">377</span> if (rem != bc)<a name="line.377"></a>
<span class="sourceLineNo">378</span> return false;<a name="line.378"></a>
<span class="sourceLineNo">379</span> _cache.remove(name);<a name="line.379"></a>
<span class="sourceLineNo">380</span> return true;<a name="line.380"></a>
<span class="sourceLineNo">381</span> }<a name="line.381"></a>
<span class="sourceLineNo">382</span>}<a name="line.382"></a>
</pre>
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