*** empty log message ***

git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@119 379699f6-c40d-0410-875b-85095c16579e

jode/jode/decompiler/ClassAnalyzer.java

@@ -31,7 +31,7 @@ import jode.flow.TransformConstructors;
 
 public class ClassAnalyzer implements Analyzer {
     JodeEnvironment env;
-    Analyzer[] analyzers;    
+    Analyzer[] analyzers;
     MethodAnalyzer staticConstructor;
     MethodAnalyzer[] constructors;
 
@@ -64,6 +64,10 @@ public class ClassAnalyzer implements Analyzer {
         return false;
     }
 
+    public Class getClazz() {
+        return clazz;
+    }
+
     public void analyze() {
         int numFields = 0;
         int i = 0;

jode/jode/expr/InvokeOperator.java

@@ -88,6 +88,20 @@ public final class InvokeOperator extends Operator {
         return methodName.equals("<init>");
     }
 
+    public boolean isThis() {
+        Class clazz = codeAnalyzer.method.classAnalyzer.getClazz();
+        return (classType.equals(Type.tType(clazz)));
+    }
+
+    public boolean isSuperOrThis() {
+        Class clazz = codeAnalyzer.method.classAnalyzer.getClazz();
+        while (clazz != null 
+               && !classType.equals(Type.tType(clazz))) {
+            clazz = clazz.getSuperclass();
+        }
+        return (clazz != null);
+    }
+
     public String toString(String[] operands) {
         String object = null;
         if (specialFlag) {
@@ -101,11 +115,11 @@ public final class InvokeOperator extends Operator {
                 }
                 
                 if (clazz == null)
-                    object = "SPECIAL";
+                    object = "NON VIRTUAL this";
             } else if (classType.equals(Type.tType(clazz)))
                 object = operands[0];
             else
-                object = "SPECIAL "+operands[0];
+                object = "NON VIRTUAL "+operands[0];
         }
             
         object = (object != null) ? object

jode/jode/flow/TransformConstructors.java

@@ -35,29 +35,55 @@ public class TransformConstructors {
         if (cons.length == 0)
             return;
 
-        InstructionBlock[] superCall = new InstructionBlock[cons.length];
-        StructuredBlock[] start = new StructuredBlock[cons.length];
-        StructuredBlock[] sb = new StructuredBlock[cons.length];
-        for (int i=0; i< sb.length; i++) {
+        int constrCount = cons.length;
+        StructuredBlock[] sb = new StructuredBlock[constrCount];
+        for (int i=0; i< constrCount; ) {
             sb[i] = cons[i].getMethodHeader().block;
-            if (sb[i] == null)
-                return;
-            if (!isStatic &&
-                sb[i] instanceof SequentialBlock
-                && sb[i].getSubBlocks()[0] instanceof InstructionBlock) {
-                superCall[i] = (InstructionBlock) sb[i].getSubBlocks()[0];
-                
-                if (!(superCall[i].getInstruction().getOperator()
-                      instanceof InvokeOperator)
-                    || !((InvokeOperator)superCall[i].getInstruction()
-                         .getOperator()).isConstructor())
-                    superCall[i] = null;
+            if (!isStatic) {
+                InstructionBlock ib;
+                if (sb[i] instanceof InstructionBlock)
+                    ib = (InstructionBlock)sb[i];
+                else if (sb[i] instanceof SequentialBlock
+                         && (sb[i].getSubBlocks()[0] 
+                             instanceof InstructionBlock))
+                    ib = (InstructionBlock) sb[i].getSubBlocks()[0];
                 else
-                    /* skip super call */
+                    return;
+
+                Expression instr = ib.getInstruction();
+                
+                if (!(instr instanceof ComplexExpression)
+                    || !(instr.getOperator() instanceof InvokeOperator)
+                    || !(((ComplexExpression)instr)
+                         .getSubExpressions()[0].toString().equals("this")))
+                    return;
+                    
+                InvokeOperator invoke = (InvokeOperator) instr.getOperator();
+                if (!invoke.isConstructor() || !invoke.isSuperOrThis())
+                    return;
+
+                if (invoke.isThis()) {
+                    /* This constructor calls another constructor, so we
+                     * can skip it.
+                     */
+                    sb[i] = sb[--constrCount];
+                    continue;
+                }
+                /* This constructor begins with a super call, as 
+                 * expected. If the super() has no parameters, we
+                 * can remove it as it is implicit.
+                 */
+                if (invoke.getMethodType().getParameterTypes().length == 0)
+                    ib.removeBlock();
+                if (sb[i] instanceof SequentialBlock)
                     sb[i] = sb[i].getSubBlocks()[1];
+                else
+                    sb[i] = new EmptyBlock();
             }
+            i++;
         }
-        for (int i=0; i< sb.length; i++)
+        StructuredBlock[] start = new StructuredBlock[constrCount];
+        for (int i=0; i< constrCount; i++)
             start[i] = sb[i];
     big_loop:
         for (;;) {
@@ -94,7 +120,7 @@ public class TransformConstructors {
                 break big_loop;
             }
 
-            for (int i=1; i< sb.length; i++) {
+            for (int i=1; i< constrCount; i++) {
                 ib = (sb[0] instanceof SequentialBlock) 
                     ? sb[0].getSubBlocks()[0]
                     : sb[0];
@@ -112,31 +138,23 @@ public class TransformConstructors {
             }
                                                    
             
-            for (int i=0; i< sb.length; i++) {
+            for (int i=0; i< constrCount; i++) {
                 if (sb[i] instanceof SequentialBlock)
                     sb[i] = sb[i].getSubBlocks()[1];
                 else
                     sb[i] = null; 
             }
-            for (int i=0; i< sb.length; i++)
+            for (int i=0; i< constrCount; i++)
                 if (sb[i] == null) {
 //                     System.err.println("constr "+i+" is over");
                     break big_loop;
                 }
         }
-        for (int i=0; i< superCall.length; i++) {
+        for (int i=0; i< constrCount; i++) {
             if (sb[i] == null)
                 start[i].removeBlock();
             else
                 sb[i].replace(start[i]);
-            if (superCall[i] != null) {
-                InvokeOperator op = 
-                    (InvokeOperator) superCall[i].getInstruction()
-                    .getOperator();
-                /* super() is implicit */
-                if (op.getMethodType().getParameterTypes().length == 0)
-                    superCall[i].removeBlock();
-            }
         }
     }
 }