git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@3 379699f6-c40d-0410-875b-85095c16579estable
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package jode; |
package jode; |
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import sun.tools.java.Type; |
import sun.tools.java.Type; |
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import sun.tools.java.Identifier; |
import sun.tools.java.Identifier; |
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import java.util.Hashtable; |
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import java.util.Enumeration; |
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public class LocalVariableHash implements LocalVariable { |
public class LocalVariableHash implements LocalVariable { |
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Hashtable locals; |
Hashtable locals; |
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int slot; |
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private find(int addr) { |
public LocalVariableHash(int slot) { |
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locals = new Hashtable(); |
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this.slot = slot; |
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} |
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public LocalInfo getInfo(int addr) { |
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LocalInfo li = (LocalInfo) locals.get(new Integer(addr)); |
LocalInfo li = (LocalInfo) locals.get(new Integer(addr)); |
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if (li == null) { |
if (li == null) { |
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li = new LocalInfo(); |
System.err.println("creating "+slot+": "+addr); |
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li = new LocalInfo(slot); |
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locals.put(new Integer(addr), li); |
locals.put(new Integer(addr), li); |
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} |
} |
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return li; |
return li; |
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} |
} |
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public Identifier getName(int addr) { |
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LocalInfo li = find(addr); |
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return li.name; |
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} |
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public Type getType(int addr) { |
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LocalInfo li = find(addr); |
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return li.type; |
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} |
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public Type setType(int addr, Type type) { |
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LocalInfo li = find(addr); |
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li.type = UnknownType.commonType(li.type, type); |
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return li.type; |
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} |
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public void combine(int addr1, int addr2) { |
public void combine(int addr1, int addr2) { |
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LocalInfo li1 = find(addr1); |
System.err.println("combining "+slot+": "+addr1+" and "+addr2); |
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LocalInfo li2 = find(addr2); |
LocalInfo li1 = getInfo(addr1); |
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li1.type = UnknownType.commonType(li1.type, li2.type); |
LocalInfo li2 = (LocalInfo) locals.get(new Integer(addr2)); |
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Enumeration keys = locals.keys(); |
if (li2 != null) { |
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while (keys.hasMoreElements()) { |
li1.type = UnknownType.commonType(li1.type, li2.type); |
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Object key = keys.nextElement(); |
Enumeration keys = locals.keys(); |
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if (locals.get(key) == li2) |
while (keys.hasMoreElements()) { |
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locals.put(key, li1); |
Object key = keys.nextElement(); |
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} |
if (locals.get(key) == li2) |
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locals.put(key, li1); |
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} |
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} else |
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locals.put(new Integer(addr2), li1); |
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} |
} |
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} |
} |
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