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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.util.*;<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.util.*;<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> * Any typed instruction.<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 abstract class TypedInstruction extends Instruction {<a name="line.13"></a>
<span class="sourceLineNo">014</span> private static final Set _opcodeTypes = new HashSet();<a name="line.14"></a>
<span class="sourceLineNo">015</span> static {<a name="line.15"></a>
<span class="sourceLineNo">016</span> _opcodeTypes.add(int.class.getName());<a name="line.16"></a>
<span class="sourceLineNo">017</span> _opcodeTypes.add(long.class.getName());<a name="line.17"></a>
<span class="sourceLineNo">018</span> _opcodeTypes.add(float.class.getName());<a name="line.18"></a>
<span class="sourceLineNo">019</span> _opcodeTypes.add(double.class.getName());<a name="line.19"></a>
<span class="sourceLineNo">020</span> _opcodeTypes.add(Object.class.getName());<a name="line.20"></a>
<span class="sourceLineNo">021</span> _opcodeTypes.add(byte.class.getName());<a name="line.21"></a>
<span class="sourceLineNo">022</span> _opcodeTypes.add(char.class.getName());<a name="line.22"></a>
<span class="sourceLineNo">023</span> _opcodeTypes.add(short.class.getName());<a name="line.23"></a>
<span class="sourceLineNo">024</span> _opcodeTypes.add(boolean.class.getName());<a name="line.24"></a>
<span class="sourceLineNo">025</span> _opcodeTypes.add(void.class.getName());<a name="line.25"></a>
<span class="sourceLineNo">026</span> }<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span> TypedInstruction(Code owner) {<a name="line.28"></a>
<span class="sourceLineNo">029</span> super(owner);<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> TypedInstruction(Code owner, int opcode) {<a name="line.32"></a>
<span class="sourceLineNo">033</span> super(owner, opcode);<a name="line.33"></a>
<span class="sourceLineNo">034</span> }<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span> /**<a name="line.36"></a>
<span class="sourceLineNo">037</span> * Return the type for the given name. Takes into account<a name="line.37"></a>
<span class="sourceLineNo">038</span> * the given mappings and the demote flag.<a name="line.38"></a>
<span class="sourceLineNo">039</span> *<a name="line.39"></a>
<span class="sourceLineNo">040</span> * @param mappings mappings of one type to another; for example,<a name="line.40"></a>
<span class="sourceLineNo">041</span> * array instruction treat booleans as ints, so<a name="line.41"></a>
<span class="sourceLineNo">042</span> * to reflect that there should be an index x of the<a name="line.42"></a>
<span class="sourceLineNo">043</span> * array such that mappings[x][0] = boolean.class and<a name="line.43"></a>
<span class="sourceLineNo">044</span> * mappings[x][1] = int.class; may be null if no special mappings are needed<a name="line.44"></a>
<span class="sourceLineNo">045</span> * @param demote if true, all object types will be demoted to Object.class<a name="line.45"></a>
<span class="sourceLineNo">046</span> */<a name="line.46"></a>
<span class="sourceLineNo">047</span> String mapType(String type, Class[][] mappings, boolean demote) {<a name="line.47"></a>
<span class="sourceLineNo">048</span> if (type == null)<a name="line.48"></a>
<span class="sourceLineNo">049</span> return null;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> type = getProject().getNameCache().getExternalForm(type, false);<a name="line.51"></a>
<span class="sourceLineNo">052</span> if (!_opcodeTypes.contains(type) && demote)<a name="line.52"></a>
<span class="sourceLineNo">053</span> type = Object.class.getName();<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span> if (mappings != null)<a name="line.55"></a>
<span class="sourceLineNo">056</span> for (int i = 0; i < mappings.length; i++)<a name="line.56"></a>
<span class="sourceLineNo">057</span> if (mappings[i][0].getName().equals(type))<a name="line.57"></a>
<span class="sourceLineNo">058</span> type = mappings[i][1].getName();<a name="line.58"></a>
<span class="sourceLineNo">059</span> return type;<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> /**<a name="line.62"></a>
<span class="sourceLineNo">063</span> * Return the type name for this instruction.<a name="line.63"></a>
<span class="sourceLineNo">064</span> * If the type has not been set, this method will return null.<a name="line.64"></a>
<span class="sourceLineNo">065</span> */<a name="line.65"></a>
<span class="sourceLineNo">066</span> public abstract String getTypeName();<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span> /**<a name="line.68"></a>
<span class="sourceLineNo">069</span> * Return the type for this instruction.<a name="line.69"></a>
<span class="sourceLineNo">070</span> * If the type has not been set, this method will return null.<a name="line.70"></a>
<span class="sourceLineNo">071</span> */<a name="line.71"></a>
<span class="sourceLineNo">072</span> public Class getType() {<a name="line.72"></a>
<span class="sourceLineNo">073</span> String type = getTypeName();<a name="line.73"></a>
<span class="sourceLineNo">074</span> if (type == null)<a name="line.74"></a>
<span class="sourceLineNo">075</span> return null;<a name="line.75"></a>
<span class="sourceLineNo">076</span> return Strings.toClass(type, getClassLoader());<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 type for this instruction.<a name="line.80"></a>
<span class="sourceLineNo">081</span> * If the type has not been set, this method will return null.<a name="line.81"></a>
<span class="sourceLineNo">082</span> */<a name="line.82"></a>
<span class="sourceLineNo">083</span> public BCClass getTypeBC() {<a name="line.83"></a>
<span class="sourceLineNo">084</span> String type = getTypeName();<a name="line.84"></a>
<span class="sourceLineNo">085</span> if (type == null)<a name="line.85"></a>
<span class="sourceLineNo">086</span> return null;<a name="line.86"></a>
<span class="sourceLineNo">087</span> return getProject().loadClass(type, getClassLoader());<a name="line.87"></a>
<span class="sourceLineNo">088</span> }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span> /**<a name="line.90"></a>
<span class="sourceLineNo">091</span> * Set the type of this instruction. Types that have no direct<a name="line.91"></a>
<span class="sourceLineNo">092</span> * support will be converted accordingly.<a name="line.92"></a>
<span class="sourceLineNo">093</span> *<a name="line.93"></a>
<span class="sourceLineNo">094</span> * @return this instruction, for method chaining<a name="line.94"></a>
<span class="sourceLineNo">095</span> */<a name="line.95"></a>
<span class="sourceLineNo">096</span> public abstract TypedInstruction setType(String type);<a name="line.96"></a>
<span class="sourceLineNo">097</span><a name="line.97"></a>
<span class="sourceLineNo">098</span> /**<a name="line.98"></a>
<span class="sourceLineNo">099</span> * Set the type of this instruction. Types that have no direct<a name="line.99"></a>
<span class="sourceLineNo">100</span> * support will be converted accordingly.<a name="line.100"></a>
<span class="sourceLineNo">101</span> *<a name="line.101"></a>
<span class="sourceLineNo">102</span> * @return this instruction, for method chaining<a name="line.102"></a>
<span class="sourceLineNo">103</span> */<a name="line.103"></a>
<span class="sourceLineNo">104</span> public TypedInstruction setType(Class type) {<a name="line.104"></a>
<span class="sourceLineNo">105</span> if (type == null)<a name="line.105"></a>
<span class="sourceLineNo">106</span> return setType((String) null);<a name="line.106"></a>
<span class="sourceLineNo">107</span> return setType(type.getName());<a name="line.107"></a>
<span class="sourceLineNo">108</span> }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span> /**<a name="line.110"></a>
<span class="sourceLineNo">111</span> * Set the type of this instruction. Types that have no direct<a name="line.111"></a>
<span class="sourceLineNo">112</span> * support will be converted accordingly.<a name="line.112"></a>
<span class="sourceLineNo">113</span> *<a name="line.113"></a>
<span class="sourceLineNo">114</span> * @return this instruction, for method chaining<a name="line.114"></a>
<span class="sourceLineNo">115</span> */<a name="line.115"></a>
<span class="sourceLineNo">116</span> public TypedInstruction setType(BCClass type) {<a name="line.116"></a>
<span class="sourceLineNo">117</span> if (type == null)<a name="line.117"></a>
<span class="sourceLineNo">118</span> return setType((String) null);<a name="line.118"></a>
<span class="sourceLineNo">119</span> return setType(type.getName());<a name="line.119"></a>
<span class="sourceLineNo">120</span> }<a name="line.120"></a>
<span class="sourceLineNo">121</span>}<a name="line.121"></a>
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