attribute handling in bytecode

git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@631 379699f6-c40d-0410-875b-85095c16579e

jode/jode/decompiler/LocalVariableTable.java

@@ -21,48 +21,21 @@ package jode.decompiler;
 import java.io.*;
 import jode.Decompiler;
 import jode.type.Type;
-import jode.bytecode.AttributeInfo;
-import jode.bytecode.ConstantPool;
+import jode.bytecode.LocalVariableInfo;
 
 public class LocalVariableTable {
     LocalVariableRangeList[] locals;
 
-    public LocalVariableTable(int size, ConstantPool constantPool, 
-			      AttributeInfo attr) {
-
-        locals = new LocalVariableRangeList[size];
-        for (int i=0; i<size; i++)
+    public LocalVariableTable(int maxLocals, LocalVariableInfo[] lvt) {
+        locals = new LocalVariableRangeList[maxLocals];
+        for (int i=0; i < maxLocals; i++)
             locals[i] = new LocalVariableRangeList(i);
 
-        DataInputStream stream = new DataInputStream
-            (new ByteArrayInputStream(attr.getContents()));
-        try {
-            int count = stream.readUnsignedShort();
-            for (int i=0; i < count; i++) {
-                int start  = stream.readUnsignedShort();
-                int end    = start + stream.readUnsignedShort();
-		int nameIndex = stream.readUnsignedShort();
-		int typeIndex = stream.readUnsignedShort();
-		if (nameIndex == 0 || typeIndex == 0
-		    || constantPool.getTag(nameIndex) != constantPool.UTF8
-		    || constantPool.getTag(typeIndex) != constantPool.UTF8) {
-		    // This is probably an evil lvt as created by HashJava
-		    // simply ignore it.
-		    if (Decompiler.showLVT) 
-			Decompiler.err.println("Illegal entry, ignoring LVT");
-		    return;
-		}
-                String name = constantPool.getUTF8(nameIndex);
-                Type type = Type.tType(constantPool.getUTF8(typeIndex));
-                int slot   = stream.readUnsignedShort();
-                locals[slot].addLocal(start, end-start, name, type);
-                if (Decompiler.showLVT)
-                    Decompiler.err.println("\t"+name + ": " + type
-                                       +" range "+start+" - "+end
-                                       +" slot "+slot);
-            }
-        } catch (IOException ex) {
-            ex.printStackTrace(Decompiler.err);
+	for (int i=0; i<lvt.length; i++) {
+	    int length = (lvt[i].end.addr + lvt[i].end.length 
+			  - lvt[i].start.addr);
+	    locals[lvt[i].slot].addLocal(lvt[i].start.addr, length,
+					 lvt[i].name, Type.tType(lvt[i].type));
 	}
     }
 

jode/jode/decompiler/MethodAnalyzer.java

@@ -19,7 +19,6 @@
 
 package jode.decompiler;
 import jode.bytecode.MethodInfo;
-import jode.bytecode.AttributeInfo;
 import jode.type.Type;
 import jode.type.*;
 import jode.AssertError;
@@ -47,36 +46,23 @@ public class MethodAnalyzer implements Analyzer {
         this.classAnalyzer = cla;
         this.imports = imports;
         this.modifiers = minfo.getModifiers();
-        this.methodType = minfo.getType();
+        this.methodType = Type.tMethod(minfo.getType());
         this.methodName = minfo.getName();
         this.isStatic = minfo.isStatic();
         this.isConstructor = 
             methodName.equals("<init>") || methodName.equals("<clinit>");
-	this.isSynthetic = (minfo.findAttribute("Synthetic") != null);
-	this.isDeprecated = (minfo.findAttribute("Deprecated") != null);
+	this.isSynthetic = minfo.isSynthetic();
+	this.isDeprecated = minfo.isDeprecated();
         
-        AttributeInfo codeattr = minfo.findAttribute("Code");
-        if (codeattr != null) {
-	    code = new CodeAnalyzer(this, minfo, codeattr, imports);
-        }
-        
-        AttributeInfo excattr = minfo.findAttribute("Exceptions");
+	code = new CodeAnalyzer(this, minfo, imports);
+        String[] excattr = minfo.getExceptions();
         if (excattr == null) {
             exceptions = new Type[0];
         } else {
-            DataInputStream stream = new DataInputStream
-                (new ByteArrayInputStream(excattr.getContents()));
-            try {
-                int throwCount = stream.readUnsignedShort();
-                this.exceptions = new Type[throwCount];
-                for (int t=0; t< throwCount; t++) {
-                    int idx = stream.readUnsignedShort();
-                    exceptions[t] = Type.tClass(classAnalyzer.getConstantPool()
-                                                .getClassName(idx));
-                }
-            } catch (IOException ex) {
-                throw new AssertError("exception attribute too long?");
-            }
+	    int excCount = excattr.length;
+	    this.exceptions = new Type[excCount];
+	    for (int i=0; i< excCount; i++)
+		exceptions[i] = Type.tClass(excattr[i]);
         }
     }