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git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@113 379699f6-c40d-0410-875b-85095c16579e
stable
jochen 26 years ago
parent b3aee060b3
commit e40a33feca
5 changed files with 184 additions and 117 deletions
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  1. 1
      jode/jode/bytecode/Opcodes.java
  2. 10
      jode/jode/expr/InvokeOperator.java
  3. 268
      jode/jode/flow/VariableSet.java
  4. 4
      jode/jode/type/Type.java
  5. 16
      jode/jode/util/SimpleDictionary.java

1
jode/jode/bytecode/Opcodes.java
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@ -355,6 +355,7 @@ public abstract class Opcodes {
}
}
case opc_ret:
stream.skip(1);
return new int[] { 2 };
case opc_jsr_w:

10
jode/jode/expr/InvokeOperator.java
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@ -91,8 +91,8 @@ public final class InvokeOperator extends Operator {
public String toString(String[] operands) {
String object = null;
if (specialFlag) {
if (operands[0].equals("this")) {
Class clazz = codeAnalyzer.method.classAnalyzer.clazz;
if (operands[0].equals("this")) {
object = "";
while (clazz != null
&& !classType.equals(Type.tType(clazz))) {
@ -101,9 +101,11 @@ public final class InvokeOperator extends Operator {
}
if (clazz == null)
object = "ERROR-SPECIAL";
} else
object = "ERROR-SPECIAL";
object = "SPECIAL";
} else if (classType.equals(Type.tType(clazz)))
object = operands[0];
else
object = "SPECIAL "+operands[0];
}
object = (object != null) ? object

268
jode/jode/flow/VariableSet.java
Unescape View File

@ -29,20 +29,98 @@ import jode.LocalInfo;
* Note that a variable set can contain LocalInfos that use the same
* slot, but are different.
*/
public class VariableSet extends java.util.Vector {
public class VariableSet implements Cloneable {
LocalInfo[] locals;
int count;
/**
* Creates a new empty variable set
*/
public VariableSet() {
super(0, 0);
locals = null;
count = 0;
}
/**
* Creates a new pre initialized variable set
*/
public VariableSet(LocalInfo[] locals) {
count = locals.length;
this.locals = locals;
}
public final void grow(int size) {
if (locals != null) {
size += count;
if (size > locals.length) {
int nextSize = locals.length * 2;
// System.err.println("wanted: "+size+" next: "+nextSize);
LocalInfo[] newLocals
= new LocalInfo[nextSize > size ? nextSize : size];
System.arraycopy(locals, 0, newLocals, 0, count);
locals = newLocals;
}
} else if (size > 0)
locals = new LocalInfo[size];
}
/**
* Adds a local variable to the variable set.
* @param li The local variable of type LocalInfo.
* Adds a local info to this variable set. It doesn't check for
* duplicates.
*/
public void addElement(LocalInfo li) {
super.addElement((Object)li);
grow(1);
locals[count++] = li;
}
/**
* Checks if the variable set contains the given local info.
*/
public boolean contains(LocalInfo li) {
li = li.getLocalInfo();
for (int i=0; i<count;i++)
if (locals[i].getLocalInfo() == li)
return true;
return false;
}
/**
* Removes a local info from this variable set.
*/
public void removeElement(LocalInfo li) {
li = li.getLocalInfo();
for (int i=0; i<count;i++)
if (locals[i].getLocalInfo() == li)
locals[i] = locals[--count];
}
/**
* Removes everything from this variable set.
*/
public void removeAllElements() {
locals = null;
count = 0;
}
public java.util.Enumeration elements() {
return new ArrayEnum(count, locals);
}
public boolean isEmpty() {
return count == 0;
}
public Object clone() {
try {
VariableSet other = (VariableSet) super.clone();
if (count > 0) {
other.locals = new LocalInfo[count];
System.arraycopy(locals, 0, other.locals, 0, count);
}
return other;
} catch (CloneNotSupportedException ex) {
throw new jode.AssertError("Clone?");
}
}
/**
@ -50,22 +128,30 @@ public class VariableSet extends java.util.Vector {
* in both variable sets, all corresponding LocalInfos are merged.
* The variable sets are not changed (use union for this).
* @return The merged variables.
* @param vs the other variable set.
*/
* @param vs the other variable set. */
public VariableSet merge(VariableSet vs) {
VariableSet merged = new VariableSet();
for (int i=0; i<elementCount; i++) {
LocalInfo li1 = ((LocalInfo) elementData[i]).getLocalInfo();
merged.grow(Math.min(count,vs.count));
big_loop:
for (int i=0; i<count; i++) {
LocalInfo li1 = locals[i];
int slot = li1.getSlot();
boolean didMerge = false;
for (int j=0; j<vs.elementCount; j++) {
LocalInfo li2 = ((LocalInfo) vs.elementData[j]).getLocalInfo();
if (li1.getSlot() == li2.getSlot()) {
li1.combineWith(li2);
for (int k=0; k< merged.count; k++) {
if (slot == merged.locals[k].getSlot()) {
/* This slot was already merged. */
li1.combineWith(merged.locals[k]);
continue big_loop;
}
}
for (int j=0; j<vs.count; j++) {
if (li1.getSlot() == vs.locals[j].getSlot()) {
li1.combineWith(vs.locals[j]);
didMerge = true;
}
}
if (didMerge)
merged.addElement(li1);
merged.locals[merged.count++] = li1;
}
return merged;
}
@ -77,15 +163,20 @@ public class VariableSet extends java.util.Vector {
*/
public VariableSet intersect(VariableSet vs) {
VariableSet intersection = new VariableSet();
for (int i=0; i<elementCount; i++) {
LocalInfo li1 = ((LocalInfo) elementData[i]).getLocalInfo();
for (int j=0; j<vs.elementCount; j++) {
LocalInfo li2 = ((LocalInfo) vs.elementData[j]).getLocalInfo();
if (li1.getSlot() == li2.getSlot()) {
if (!intersection.contains(li1))
intersection.addElement(li1);
if (!intersection.contains(li2))
intersection.addElement(li2);
intersection.grow(Math.min(count, vs.count));
big_loop:
for (int i=0; i<count; i++) {
LocalInfo li = locals[i];
int slot = li.getSlot();
for (int j=0; j<vs.count; j++) {
if (slot == vs.locals[j].getSlot()) {
for (int k=0; k<intersection.count; k++) {
if (slot == intersection.locals[k].getSlot())
continue big_loop;
}
intersection.locals[intersection.count++]
= li.getLocalInfo();
continue big_loop;
}
}
}
@ -99,15 +190,15 @@ public class VariableSet extends java.util.Vector {
*/
public VariableSet intersectExact(VariableSet vs) {
VariableSet intersection = new VariableSet();
for (int i=0; i<elementCount; i++) {
LocalInfo li1 = ((LocalInfo) elementData[i]).getLocalInfo();
for (int j=0; j<vs.elementCount; j++) {
LocalInfo li2 = ((LocalInfo) vs.elementData[j]).getLocalInfo();
if (li1.getLocalInfo() == li2.getLocalInfo()) {
intersection.grow(Math.min(count, vs.count));
big_loop:
for (int i=0; i<count; i++) {
LocalInfo li1 = locals[i].getLocalInfo();
for (int j=0; j<vs.count; j++) {
if (li1 == vs.locals[j].getLocalInfo()) {
if (!intersection.contains(li1))
intersection.addElement(li1);
if (!intersection.contains(li2))
intersection.addElement(li2);
intersection.locals[intersection.count++] = li1;
continue big_loop;
}
}
}
@ -118,18 +209,18 @@ public class VariableSet extends java.util.Vector {
* Union the other variable set to the current.
*/
public void unionExact(VariableSet vs) {
int oldSize = elementCount;
iloop:
for (int i=0; i< vs.elementCount; i++) {
LocalInfo li2 = ((LocalInfo) vs.elementData[i]).getLocalInfo();
/* check if this particular local info was already in the set */
for (int j=0; j< oldSize; j++) {
LocalInfo li1 = ((LocalInfo) elementData[j]).getLocalInfo();
grow(vs.count);
big_loop:
for (int i=0; i< vs.count; i++) {
LocalInfo li2 = (vs.locals[i]).getLocalInfo();
/* check if this particular local info is already in the set */
for (int j=0; j< count; j++) {
LocalInfo li1 = (locals[j]).getLocalInfo();
if (li1 == li2)
/* Yes it was, take next variable */
continue iloop;
/* Yes it is, take next variable */
continue big_loop;
}
addElement(li2);
locals[count++] = li2;
}
}
@ -138,18 +229,18 @@ public class VariableSet extends java.util.Vector {
* is already in the current set.
*/
public void add(VariableSet vs) {
int oldSize = elementCount;
iloop:
for (int i=0; i< vs.elementCount; i++) {
LocalInfo li2 = (LocalInfo) vs.elementData[i];
/* check if this slot was already overwritten by this block */
for (int j=0; j< oldSize; j++) {
LocalInfo li1 = (LocalInfo) elementData[j];
if (li1.getSlot() == li2.getSlot())
/* Yes it was, take next variable */
continue iloop;
grow(vs.count);
big_loop:
for (int i=0; i< vs.count; i++) {
LocalInfo li2 = vs.locals[i];
int slot2 = li2.getSlot();
/* check if this slot is already in the current set */
for (int j=0; j< count; j++) {
if (locals[j].getSlot() == slot2)
/* Yes it is, take next variable */
continue big_loop;
}
addElement(li2.getLocalInfo());
locals[count++] = li2.getLocalInfo();
}
}
@ -160,17 +251,19 @@ public class VariableSet extends java.util.Vector {
* @param kill The kill set.
*/
public void mergeGenKill(VariableSet gen, VariableSet kill) {
iloop:
for (int i=0; i< gen.elementCount; i++) {
LocalInfo li2 = ((LocalInfo) gen.elementData[i]).getLocalInfo();
/* check if this slot was already overwritten (kill set) */
for (int j=0; j< kill.elementCount; j++) {
LocalInfo li1 = (LocalInfo) kill.elementData[j];
if (li2.getSlot() == li1.getSlot())
/* Yes it was, take next variable */
continue iloop;
grow(gen.count);
big_loop:
for (int i=0; i< gen.count; i++) {
LocalInfo li2 = gen.locals[i];
int slot = li2.getSlot();
/* check if this slot is in the kill set) */
for (int j=0; j< kill.count; j++) {
LocalInfo li1 = kill.locals[j];
if (slot == kill.locals[j].getSlot())
/* Yes it is, take next variable */
continue big_loop;
}
addElement(li2);
locals[count++] = li2.getLocalInfo();
}
}
@ -181,25 +274,19 @@ public class VariableSet extends java.util.Vector {
* @param vs The other variable set.
*/
public void subtract(VariableSet vs) {
/* We count from top to bottom to have easier reorganization.
* Note, that the variables have not to be in any particular
* order. */
int newCount = elementCount;
for (int i=newCount-1; i>=0; i--) {
LocalInfo li1 = (LocalInfo) elementData[i];
for (int j=0; j<vs.elementCount; j++) {
LocalInfo li2 = (LocalInfo) vs.elementData[j];
if (li1.getSlot() == li2.getSlot()) {
big_loop:
for (int i=0; i < count;) {
LocalInfo li1 = locals[i];
int slot = li1.getSlot();
for (int j=0; j<vs.count; j++) {
if (slot == vs.locals[j].getSlot()) {
/* remove the element from this variable list. */
newCount--;
elementData[i] = elementData[newCount];
/* break the j-loop */
break;
locals[i] = locals[--count].getLocalInfo();
continue big_loop;
}
}
i++;
}
/* Now set the new size */
setSize(newCount);
}
/**
@ -209,28 +296,17 @@ public class VariableSet extends java.util.Vector {
* @param vs The other variable set.
*/
public void subtractExact(VariableSet vs) {
/* We count from top to bottom to have easier reorganization.
* Note, that the variables have not to be in any particular
* order. */
int newCount = elementCount;
for (int i=newCount-1; i>=0; i--) {
LocalInfo li1 = (LocalInfo) elementData[i];
for (int j=0; j<vs.elementCount; j++) {
LocalInfo li2 = (LocalInfo) vs.elementData[j];
if (li1.getLocalInfo() == li2.getLocalInfo()) {
big_loop:
for (int i=0; i < count;) {
LocalInfo li1 = locals[i].getLocalInfo();
for (int j=0; j<vs.count; j++) {
if (li1 == vs.locals[j].getLocalInfo()) {
/* remove the element from this variable list. */
newCount--;
elementData[i] = elementData[newCount];
/* break the j-loop */
break;
locals[i] = locals[--count].getLocalInfo();
continue big_loop;
}
}
i++;
}
/* Now set the new size */
setSize(newCount);
}
}

4
jode/jode/type/Type.java
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@ -158,7 +158,7 @@ public class Type {
: clazz == Void.TYPE ? tVoid
: tError;
}
return tClass(clazz.getName());
return new ClassInterfacesType(clazz);
}
public static final Type tClass(String clazzname) {
@ -234,7 +234,7 @@ public class Type {
/**
* @return the type code of the type.
*/
public int getTypeCode() {
public final int getTypeCode() {
return typecode;
}

16
jode/jode/util/SimpleDictionary.java
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@ -33,24 +33,12 @@ public class SimpleDictionary extends Dictionary {
return count == 0;
}
public Enumeration getArrayEnum(final Object[] array, final int size) {
return new Enumeration() {
int index = 0;
public boolean hasMoreElements() {
return index < size;
}
public Object nextElement() {
return array[index++];
}
};
}
public Enumeration keys() {
return getArrayEnum(keyObjects, count);
return new ArrayEnum(count, keyObjects);
}
public Enumeration elements() {
return getArrayEnum(elementObjects, count);
return new ArrayEnum(count, elementObjects);
}
public Object get(Object key) {

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