/usr/share/doc/libserp-java/api/src-html/serp/bytecode/ConstantValue.html is in libserp-java-doc 1.15.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<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><a name="line.4"></a>
<span class="sourceLineNo">005</span>import serp.bytecode.lowlevel.*;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import serp.bytecode.visitor.*;<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>/**<a name="line.8"></a>
<span class="sourceLineNo">009</span> * A constant value for a member field.<a name="line.9"></a>
<span class="sourceLineNo">010</span> *<a name="line.10"></a>
<span class="sourceLineNo">011</span> * @author Abe White<a name="line.11"></a>
<span class="sourceLineNo">012</span> */<a name="line.12"></a>
<span class="sourceLineNo">013</span>public class ConstantValue extends Attribute {<a name="line.13"></a>
<span class="sourceLineNo">014</span> int _valueIndex = 0;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span> ConstantValue(int nameIndex, Attributes owner) {<a name="line.16"></a>
<span class="sourceLineNo">017</span> super(nameIndex, owner);<a name="line.17"></a>
<span class="sourceLineNo">018</span> }<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span> int getLength() {<a name="line.20"></a>
<span class="sourceLineNo">021</span> return 2;<a name="line.21"></a>
<span class="sourceLineNo">022</span> }<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span> /**<a name="line.24"></a>
<span class="sourceLineNo">025</span> * Return the owning field.<a name="line.25"></a>
<span class="sourceLineNo">026</span> */<a name="line.26"></a>
<span class="sourceLineNo">027</span> public BCField getField() {<a name="line.27"></a>
<span class="sourceLineNo">028</span> return (BCField) getOwner();<a name="line.28"></a>
<span class="sourceLineNo">029</span> }<a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span> /**<a name="line.31"></a>
<span class="sourceLineNo">032</span> * Return the {@link ConstantPool} index of the {@link ConstantEntry}<a name="line.32"></a>
<span class="sourceLineNo">033</span> * holding the value of this constant. Defaults to 0.<a name="line.33"></a>
<span class="sourceLineNo">034</span> */<a name="line.34"></a>
<span class="sourceLineNo">035</span> public int getValueIndex() {<a name="line.35"></a>
<span class="sourceLineNo">036</span> return _valueIndex;<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> * Set the {@link ConstantPool} of the {@link ConstantEntry}<a name="line.40"></a>
<span class="sourceLineNo">041</span> * holding the value of this constant.<a name="line.41"></a>
<span class="sourceLineNo">042</span> */<a name="line.42"></a>
<span class="sourceLineNo">043</span> public void setValueIndex(int valueIndex) {<a name="line.43"></a>
<span class="sourceLineNo">044</span> _valueIndex = valueIndex;<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> /**<a name="line.47"></a>
<span class="sourceLineNo">048</span> * Return the type of constant this attribute represents, or null if<a name="line.48"></a>
<span class="sourceLineNo">049</span> * not set.<a name="line.49"></a>
<span class="sourceLineNo">050</span> */<a name="line.50"></a>
<span class="sourceLineNo">051</span> public String getTypeName() {<a name="line.51"></a>
<span class="sourceLineNo">052</span> Class type = getType();<a name="line.52"></a>
<span class="sourceLineNo">053</span> if (type == null)<a name="line.53"></a>
<span class="sourceLineNo">054</span> return null;<a name="line.54"></a>
<span class="sourceLineNo">055</span> return type.getName();<a name="line.55"></a>
<span class="sourceLineNo">056</span> }<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span> /**<a name="line.58"></a>
<span class="sourceLineNo">059</span> * Return the type of constant this attribute represents (String.class,<a name="line.59"></a>
<span class="sourceLineNo">060</span> * int.class, etc), or null if not set.<a name="line.60"></a>
<span class="sourceLineNo">061</span> */<a name="line.61"></a>
<span class="sourceLineNo">062</span> public Class getType() {<a name="line.62"></a>
<span class="sourceLineNo">063</span> Object value = getValue();<a name="line.63"></a>
<span class="sourceLineNo">064</span> if (value == null)<a name="line.64"></a>
<span class="sourceLineNo">065</span> return null;<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span> Class type = value.getClass();<a name="line.67"></a>
<span class="sourceLineNo">068</span> if (type == Integer.class)<a name="line.68"></a>
<span class="sourceLineNo">069</span> return int.class;<a name="line.69"></a>
<span class="sourceLineNo">070</span> if (type == Float.class)<a name="line.70"></a>
<span class="sourceLineNo">071</span> return float.class;<a name="line.71"></a>
<span class="sourceLineNo">072</span> if (type == Double.class)<a name="line.72"></a>
<span class="sourceLineNo">073</span> return double.class;<a name="line.73"></a>
<span class="sourceLineNo">074</span> if (type == Long.class)<a name="line.74"></a>
<span class="sourceLineNo">075</span> return long.class;<a name="line.75"></a>
<span class="sourceLineNo">076</span> return String.class;<a name="line.76"></a>
<span class="sourceLineNo">077</span> }<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span> /**<a name="line.79"></a>
<span class="sourceLineNo">080</span> * Return the bytecode for the type of constant this attribute represents.<a name="line.80"></a>
<span class="sourceLineNo">081</span> */<a name="line.81"></a>
<span class="sourceLineNo">082</span> public BCClass getTypeBC() {<a name="line.82"></a>
<span class="sourceLineNo">083</span> return getProject().loadClass(getType());<a name="line.83"></a>
<span class="sourceLineNo">084</span> }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span> /**<a name="line.86"></a>
<span class="sourceLineNo">087</span> * Return the value of this constant as an Object of the appropriate<a name="line.87"></a>
<span class="sourceLineNo">088</span> * type (String, Integer, Double, etc), or null if not set.<a name="line.88"></a>
<span class="sourceLineNo">089</span> */<a name="line.89"></a>
<span class="sourceLineNo">090</span> public Object getValue() {<a name="line.90"></a>
<span class="sourceLineNo">091</span> if (_valueIndex <= 0)<a name="line.91"></a>
<span class="sourceLineNo">092</span> return null;<a name="line.92"></a>
<span class="sourceLineNo">093</span> return ((ConstantEntry) getPool().getEntry(_valueIndex)).getConstant();<a name="line.93"></a>
<span class="sourceLineNo">094</span> }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span> /**<a name="line.96"></a>
<span class="sourceLineNo">097</span> * Set the value of this constant using the appropriate wrapper Object<a name="line.97"></a>
<span class="sourceLineNo">098</span> * type (String, Integer, Double, etc). Types that are not directly<a name="line.98"></a>
<span class="sourceLineNo">099</span> * supported will be converted accordingly if possible.<a name="line.99"></a>
<span class="sourceLineNo">100</span> */<a name="line.100"></a>
<span class="sourceLineNo">101</span> public void setValue(Object value) {<a name="line.101"></a>
<span class="sourceLineNo">102</span> Class type = value.getClass();<a name="line.102"></a>
<span class="sourceLineNo">103</span> if (type == Boolean.class)<a name="line.103"></a>
<span class="sourceLineNo">104</span> setIntValue((((Boolean) value).booleanValue()) ? 1 : 0);<a name="line.104"></a>
<span class="sourceLineNo">105</span> else if (type == Character.class)<a name="line.105"></a>
<span class="sourceLineNo">106</span> setIntValue((int) ((Character) value).charValue());<a name="line.106"></a>
<span class="sourceLineNo">107</span> else if (type == Byte.class || type == Integer.class <a name="line.107"></a>
<span class="sourceLineNo">108</span> || type == Short.class)<a name="line.108"></a>
<span class="sourceLineNo">109</span> setIntValue(((Number) value).intValue());<a name="line.109"></a>
<span class="sourceLineNo">110</span> else if (type == Float.class)<a name="line.110"></a>
<span class="sourceLineNo">111</span> setFloatValue(((Number) value).floatValue());<a name="line.111"></a>
<span class="sourceLineNo">112</span> else if (type == Double.class)<a name="line.112"></a>
<span class="sourceLineNo">113</span> setDoubleValue(((Number) value).doubleValue());<a name="line.113"></a>
<span class="sourceLineNo">114</span> else if (type == Long.class)<a name="line.114"></a>
<span class="sourceLineNo">115</span> setLongValue(((Number) value).longValue());<a name="line.115"></a>
<span class="sourceLineNo">116</span> else<a name="line.116"></a>
<span class="sourceLineNo">117</span> setStringValue(value.toString());<a name="line.117"></a>
<span class="sourceLineNo">118</span> }<a name="line.118"></a>
<span class="sourceLineNo">119</span><a name="line.119"></a>
<span class="sourceLineNo">120</span> /**<a name="line.120"></a>
<span class="sourceLineNo">121</span> * Get the value of this int constant, or 0 if not set.<a name="line.121"></a>
<span class="sourceLineNo">122</span> */<a name="line.122"></a>
<span class="sourceLineNo">123</span> public int getIntValue() {<a name="line.123"></a>
<span class="sourceLineNo">124</span> if (getValueIndex() <= 0)<a name="line.124"></a>
<span class="sourceLineNo">125</span> return 0;<a name="line.125"></a>
<span class="sourceLineNo">126</span> return ((IntEntry) getPool().getEntry(getValueIndex())).getValue();<a name="line.126"></a>
<span class="sourceLineNo">127</span> }<a name="line.127"></a>
<span class="sourceLineNo">128</span><a name="line.128"></a>
<span class="sourceLineNo">129</span> /**<a name="line.129"></a>
<span class="sourceLineNo">130</span> * Set the value of this int constant.<a name="line.130"></a>
<span class="sourceLineNo">131</span> */<a name="line.131"></a>
<span class="sourceLineNo">132</span> public void setIntValue(int value) {<a name="line.132"></a>
<span class="sourceLineNo">133</span> setValueIndex(getPool().findIntEntry(value, true));<a name="line.133"></a>
<span class="sourceLineNo">134</span> }<a name="line.134"></a>
<span class="sourceLineNo">135</span><a name="line.135"></a>
<span class="sourceLineNo">136</span> /**<a name="line.136"></a>
<span class="sourceLineNo">137</span> * Get the value of this float constant.<a name="line.137"></a>
<span class="sourceLineNo">138</span> */<a name="line.138"></a>
<span class="sourceLineNo">139</span> public float getFloatValue() {<a name="line.139"></a>
<span class="sourceLineNo">140</span> if (getValueIndex() <= 0)<a name="line.140"></a>
<span class="sourceLineNo">141</span> return 0F;<a name="line.141"></a>
<span class="sourceLineNo">142</span> return ((FloatEntry) getPool().getEntry(getValueIndex())).getValue();<a name="line.142"></a>
<span class="sourceLineNo">143</span> }<a name="line.143"></a>
<span class="sourceLineNo">144</span><a name="line.144"></a>
<span class="sourceLineNo">145</span> /**<a name="line.145"></a>
<span class="sourceLineNo">146</span> * Set the value of this float constant.<a name="line.146"></a>
<span class="sourceLineNo">147</span> */<a name="line.147"></a>
<span class="sourceLineNo">148</span> public void setFloatValue(float value) {<a name="line.148"></a>
<span class="sourceLineNo">149</span> setValueIndex(getPool().findFloatEntry(value, true));<a name="line.149"></a>
<span class="sourceLineNo">150</span> }<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span> /**<a name="line.152"></a>
<span class="sourceLineNo">153</span> * Get the value of this double constant.<a name="line.153"></a>
<span class="sourceLineNo">154</span> */<a name="line.154"></a>
<span class="sourceLineNo">155</span> public double getDoubleValue() {<a name="line.155"></a>
<span class="sourceLineNo">156</span> if (getValueIndex() <= 0)<a name="line.156"></a>
<span class="sourceLineNo">157</span> return 0D;<a name="line.157"></a>
<span class="sourceLineNo">158</span> return ((DoubleEntry) getPool().getEntry(getValueIndex())).getValue();<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> /**<a name="line.161"></a>
<span class="sourceLineNo">162</span> * Set the value of this double constant.<a name="line.162"></a>
<span class="sourceLineNo">163</span> */<a name="line.163"></a>
<span class="sourceLineNo">164</span> public void setDoubleValue(double value) {<a name="line.164"></a>
<span class="sourceLineNo">165</span> setValueIndex(getPool().findDoubleEntry(value, true));<a name="line.165"></a>
<span class="sourceLineNo">166</span> }<a name="line.166"></a>
<span class="sourceLineNo">167</span><a name="line.167"></a>
<span class="sourceLineNo">168</span> /**<a name="line.168"></a>
<span class="sourceLineNo">169</span> * Get the value of this long constant.<a name="line.169"></a>
<span class="sourceLineNo">170</span> */<a name="line.170"></a>
<span class="sourceLineNo">171</span> public long getLongValue() {<a name="line.171"></a>
<span class="sourceLineNo">172</span> if (getValueIndex() <= 0)<a name="line.172"></a>
<span class="sourceLineNo">173</span> return 0L;<a name="line.173"></a>
<span class="sourceLineNo">174</span> return ((LongEntry) getPool().getEntry(getValueIndex())).getValue();<a name="line.174"></a>
<span class="sourceLineNo">175</span> }<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> * Set the value of this long constant.<a name="line.178"></a>
<span class="sourceLineNo">179</span> */<a name="line.179"></a>
<span class="sourceLineNo">180</span> public void setLongValue(long value) {<a name="line.180"></a>
<span class="sourceLineNo">181</span> setValueIndex(getPool().findLongEntry(value, true));<a name="line.181"></a>
<span class="sourceLineNo">182</span> }<a name="line.182"></a>
<span class="sourceLineNo">183</span><a name="line.183"></a>
<span class="sourceLineNo">184</span> /**<a name="line.184"></a>
<span class="sourceLineNo">185</span> * Get the value of this string constant.<a name="line.185"></a>
<span class="sourceLineNo">186</span> */<a name="line.186"></a>
<span class="sourceLineNo">187</span> public String getStringValue() {<a name="line.187"></a>
<span class="sourceLineNo">188</span> if (getValueIndex() <= 0)<a name="line.188"></a>
<span class="sourceLineNo">189</span> return null;<a name="line.189"></a>
<span class="sourceLineNo">190</span> return ((StringEntry) getPool().getEntry(getValueIndex())).<a name="line.190"></a>
<span class="sourceLineNo">191</span> getStringEntry().getValue();<a name="line.191"></a>
<span class="sourceLineNo">192</span> }<a name="line.192"></a>
<span class="sourceLineNo">193</span><a name="line.193"></a>
<span class="sourceLineNo">194</span> /**<a name="line.194"></a>
<span class="sourceLineNo">195</span> * Set the value of this string constant.<a name="line.195"></a>
<span class="sourceLineNo">196</span> */<a name="line.196"></a>
<span class="sourceLineNo">197</span> public void setStringValue(String value) {<a name="line.197"></a>
<span class="sourceLineNo">198</span> setValueIndex(getPool().findStringEntry(value, true));<a name="line.198"></a>
<span class="sourceLineNo">199</span> }<a name="line.199"></a>
<span class="sourceLineNo">200</span><a name="line.200"></a>
<span class="sourceLineNo">201</span> public void acceptVisit(BCVisitor visit) {<a name="line.201"></a>
<span class="sourceLineNo">202</span> visit.enterConstantValue(this);<a name="line.202"></a>
<span class="sourceLineNo">203</span> visit.exitConstantValue(this);<a name="line.203"></a>
<span class="sourceLineNo">204</span> }<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span> void read(Attribute other) {<a name="line.206"></a>
<span class="sourceLineNo">207</span> setValue(((ConstantValue) other).getValue());<a name="line.207"></a>
<span class="sourceLineNo">208</span> }<a name="line.208"></a>
<span class="sourceLineNo">209</span><a name="line.209"></a>
<span class="sourceLineNo">210</span> void read(DataInput in, int length) throws IOException {<a name="line.210"></a>
<span class="sourceLineNo">211</span> setValueIndex(in.readUnsignedShort());<a name="line.211"></a>
<span class="sourceLineNo">212</span> }<a name="line.212"></a>
<span class="sourceLineNo">213</span><a name="line.213"></a>
<span class="sourceLineNo">214</span> void write(DataOutput out, int length) throws IOException {<a name="line.214"></a>
<span class="sourceLineNo">215</span> out.writeShort(getValueIndex());<a name="line.215"></a>
<span class="sourceLineNo">216</span> }<a name="line.216"></a>
<span class="sourceLineNo">217</span>}<a name="line.217"></a>
</pre>
</div>
</body>
</html>
|