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some bugfixes

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git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@7 379699f6-c40d-0410-875b-85095c16579e
stable
jochen 27 years ago
parent 1995b7a078
commit e579fa6d57
17 changed files with 258 additions and 168 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 137
      jode/jode/decompiler/CodeAnalyzer.java
  2. 2
      jode/jode/decompiler/LocalInfo.java
  3. 7
      jode/jode/decompiler/LocalVariableAnalyzer.java
  4. 8
      jode/jode/expr/ArrayLoadOperator.java
  5. 2
      jode/jode/expr/ArrayStoreOperator.java
  6. 2
      jode/jode/expr/ConstOperator.java
  7. 4
      jode/jode/expr/ConstructorOperator.java
  8. 63
      jode/jode/expr/Expression.java
  9. 22
      jode/jode/expr/InstructionHeader.java
  10. 4
      jode/jode/expr/InvokeOperator.java
  11. 4
      jode/jode/expr/LocalLoadOperator.java
  12. 4
      jode/jode/expr/LocalStoreOperator.java
  13. 12
      jode/jode/expr/Operator.java
  14. 2
      jode/jode/expr/ReturnOperator.java
  15. 2
      jode/jode/expr/SwapOperator.java
  16. 79
      jode/jode/type/ClassRangeType.java
  17. 70
      jode/jode/type/MyType.java

137
jode/jode/decompiler/CodeAnalyzer.java
Unescape View File

@ -147,7 +147,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
Instruction pred;
try {
NopOperator op = (NopOperator) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
pred = ih.getInstruction();
if (pred == null)
return null;
@ -168,19 +168,19 @@ public class CodeAnalyzer implements Analyzer, Constants {
if (ih.getInstruction() instanceof DupOperator)
/* this is not the end of the array assign */
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
ArrayStoreOperator store =
(ArrayStoreOperator) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Expression lastconst = (Expression) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Expression lastindexexpr = (Expression) ih.getInstruction();
ConstOperator lastindexop =
(ConstOperator) lastindexexpr.getOperator();
if (!MyType.isOfType(lastindexop.getType(), MyType.tUInt))
if (!MyType.isOfType(lastindexop.getType(), MyType.tInt))
return null;
int lastindex = Integer.parseInt(lastindexop.getValue());
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
DupOperator dup = (DupOperator) ih.getInstruction();
if (dup.getDepth() != 0 ||
dup.getCount() != store.getLValueType().stackSize())
@ -189,12 +189,12 @@ public class CodeAnalyzer implements Analyzer, Constants {
consts[lastindex] = lastconst;
count = 1;
while (lastindex-- > 0) {
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
ArrayStoreOperator store2 =
(ArrayStoreOperator) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
lastconst = (Expression) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Expression indexexpr = (Expression) ih.getInstruction();
ConstOperator indexop =
(ConstOperator) indexexpr.getOperator();
@ -210,14 +210,14 @@ public class CodeAnalyzer implements Analyzer, Constants {
lastindex--;
}
consts[lastindex] = lastconst;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
dup = (DupOperator) ih.getInstruction();
if (dup.getDepth() != 0 ||
dup.getCount() != store.getLValueType().stackSize())
return null;
count++;
}
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Expression newArrayExpr = (Expression) ih.getInstruction();
NewArrayOperator newArrayOp =
(NewArrayOperator) newArrayExpr.getOperator();
@ -245,15 +245,13 @@ public class CodeAnalyzer implements Analyzer, Constants {
public InstructionHeader createExpression(InstructionHeader ih) {
Operator op;
Expression exprs[];
int count;
int params;
try {
op = (Operator) ih.getInstruction();
int params = op.getOperandCount();
params = op.getOperandCount();
exprs = new Expression[params];
count = 1;
for (int i = params-1; i>=0; i--) {
count++;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
exprs[i] = (Expression) ih.getInstruction();
if (exprs[i].isVoid()) {
if (i == params-1)
@ -263,6 +261,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
return null;
i++;
exprs[i] = e;
ih.combine(2, e);
}
}
} catch (NullPointerException ex) {
@ -270,7 +269,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
} catch (ClassCastException ex) {
return null;
}
ih.combine(count, new Expression(op, exprs));
ih.combine(params+1, new Expression(op, exprs));
return ih;
}
@ -303,7 +302,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
StoreInstruction store;
try {
store = (StoreInstruction) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
DupOperator dup = (DupOperator) ih.getInstruction();
if (dup.getDepth() != store.getLValueOperandCount() &&
@ -337,7 +336,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
return null;
if (iinc.getValue().equals("-1"))
op ^= 1;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Expression loadExpr = (Expression) ih.getInstruction();
LocalLoadOperator load =
(LocalLoadOperator)loadExpr.getOperator();
@ -363,7 +362,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
store = (StoreInstruction) ih.getInstruction();
if (store.getLValueOperandCount() == 0)
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
BinaryOperator binOp = (BinaryOperator) ih.getInstruction();
if (binOp.getOperator() == store.ADD_OP)
op = Operator.INC_OP;
@ -371,7 +370,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
op = Operator.DEC_OP;
else
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Expression expr = (Expression) ih.getInstruction();
ConstOperator constOp = (ConstOperator) expr.getOperator();
if (!constOp.getValue().equals("1") &&
@ -379,18 +378,18 @@ public class CodeAnalyzer implements Analyzer, Constants {
return null;
if (constOp.getValue().equals("-1"))
op ^= 1;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
DupOperator dup = (DupOperator) ih.getInstruction();
if (dup.getCount() != store.getLValueType().stackSize() ||
dup.getDepth() != store.getLValueOperandCount())
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Operator load = (Operator) ih.getInstruction();
if (!store.matches(load))
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
DupOperator dup2 = (DupOperator) ih.getInstruction();
if (dup2.getCount() != store.getLValueOperandCount() ||
dup2.getDepth() != 0)
@ -413,20 +412,20 @@ public class CodeAnalyzer implements Analyzer, Constants {
BinaryOperator binop;
try {
store = (StoreInstruction) ih.getInstruction();
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
binop = (BinaryOperator) ih.getInstruction();
if (binop.getOperator() < binop.ADD_OP ||
binop.getOperator() >= binop.ASSIGN_OP)
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
rightHandSide = (Expression) ih.getInstruction();
if (rightHandSide.isVoid())
return null; /* XXX */
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
Operator load = (Operator) ih.getInstruction();
if (!store.matches(load))
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
DupOperator dup = (DupOperator) ih.getInstruction();
if (dup.getDepth() != 0 &&
dup.getCount() != store.getLValueOperandCount())
@ -455,16 +454,16 @@ public class CodeAnalyzer implements Analyzer, Constants {
int params = constrCall.getOperandCount();
exprs = new Expression[params];
for (int i = params-1; i>0; i--) {
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
exprs[i] = (Expression) ih.getInstruction();
if (exprs[i].isVoid())
return null; /* XXX */
}
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
DupOperator dup = (DupOperator) ih.getInstruction();
if (dup.getCount() != 1 && dup.getDepth() != 0)
return null;
ih = ih.getUniquePredecessor();
ih = ih.getSimpleUniquePredecessor();
exprs[0] = (Expression) ih.getInstruction();
if (exprs[0].isVoid())
return null;
@ -493,7 +492,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
return null;
InstructionHeader[] dests2 = ih2.getSuccessors();
/* if ih2.getUniquePredecessor.getOperator().isVoid() XXX */
/* if ih2.getSimpleUniquePredecessor.getOperator().isVoid() XXX */
Vector predec = ih2.getPredecessors();
if (predec.size() != 1)
@ -510,12 +509,12 @@ public class CodeAnalyzer implements Analyzer, Constants {
e = new Expression[2];
operator = Operator.LOG_AND_OP;
e[1] = (Expression)ih2.getInstruction();
e[0] = ((Expression)ih2.getInstruction()).negate();
e[0] = ((Expression)ih1.getInstruction()).negate();
} else if (dests1[1] == dests2[1]) {
e = new Expression[2];
operator = Operator.LOG_OR_OP;
e[1] = (Expression)ih2.getInstruction();
e[0] = (Expression)ih2.getInstruction();
e[0] = (Expression)ih1.getInstruction();
} else
return null;
} catch (ClassCastException ex) {
@ -531,6 +530,64 @@ public class CodeAnalyzer implements Analyzer, Constants {
return ih1;
}
public InstructionHeader createFunnyIfThenElseOp(InstructionHeader ih) {
Expression cond = null;
try {
InstructionHeader ifHeader= ih;
if (ifHeader.switchType != MyType.tBoolean)
return null;
CompareUnaryOperator compare =
(CompareUnaryOperator) ifHeader.getInstruction();
if ((compare.getOperator() & ~1) != compare.EQUALS_OP)
return null;
Enumeration enum = ih.getPredecessors().elements();
while (enum.hasMoreElements()) {
try {
ih = (InstructionHeader) enum.nextElement();
Expression zeroExpr = (Expression) ih.getInstruction();
ConstOperator zero =
(ConstOperator) zeroExpr.getOperator();
if (!zero.getValue().equals("0"))
continue;
ih = ih.getUniquePredecessor();
if (ih.switchType != MyType.tBoolean)
continue;
if (compare.getOperator() == compare.EQUALS_OP &&
ih.getSuccessors()[1] != ifHeader.getSuccessors()[0]
|| compare.getOperator() == compare.NOTEQUALS_OP &&
ih.getSuccessors()[1] != ifHeader.getSuccessors()[1])
continue;
cond = (Expression) ih.getInstruction();
break;
} catch (ClassCastException ex) {
} catch (NullPointerException ex) {
}
}
if (cond == null)
return null;
} catch (ClassCastException ex) {
return null;
} catch (NullPointerException ex) {
return null;
}
InstructionHeader next = ih.nextInstruction;
ih.nextInstruction = next.nextInstruction;
ih.successors[1].predecessors.removeElement(ih);
ih.switchType = MyType.tVoid;
ih.successors = next.successors;
ih.successors[0].predecessors.removeElement(next);
ih.successors[0].predecessors.addElement(ih);
ih.succs = next.succs;
ih.length += next.length;
return ih;
}
public InstructionHeader createIfThenElseOperator(InstructionHeader ih) {
InstructionHeader ifHeader;
Expression e[] = new Expression[3];
@ -551,7 +608,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
succs[0].getSuccessors()[0] != succs[1].getSuccessors()[0])
return null;
e[0] = (Expression) ifHeader.getInstruction();
e[0] = ((Expression) ifHeader.getInstruction()).negate();
e[1] = (Expression) succs[0].getInstruction();
e[2] = (Expression) succs[1].getInstruction();
} catch (ClassCastException ex) {
@ -563,11 +620,13 @@ public class CodeAnalyzer implements Analyzer, Constants {
(MyType.intersection(e[1].getType(),e[2].getType()));
ifHeader.instr = new Expression(iteo, e);
ifHeader.nextInstruction = ih.nextInstruction;
ifHeader.length = ih.addr + ih.length - ifHeader.addr;
ifHeader.succs = ih.succs;
ifHeader.successors = ih.successors;
ifHeader.switchType = Type.tVoid;
ifHeader.nextInstruction.predecessors.removeElement(succs[0]);
ifHeader.nextInstruction.predecessors.removeElement(succs[1]);
ifHeader.nextInstruction.predecessors.addElement(ifHeader);
ifHeader.successors[0].predecessors.removeElement(succs[0]);
ifHeader.successors[0].predecessors.removeElement(succs[1]);
ifHeader.successors[0].predecessors.addElement(ifHeader);
return ifHeader;
}
@ -578,6 +637,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
ih = next) {
if (env.isVerbose)
System.err.print(".");
// System.err.println(""+ih.getAddress());
if ((next = removeNop(ih)) != null) continue;
if ((next = createExpression(ih)) != null) continue;
if ((next = createPostIncExpression(ih)) != null) continue;
@ -585,6 +645,7 @@ public class CodeAnalyzer implements Analyzer, Constants {
if ((next = createAssignOp(ih)) != null) continue;
if ((next = combineNewConstructor(ih)) != null) continue;
if ((next = combineIfGotoExpressions(ih)) != null) continue;
if ((next = createFunnyIfThenElseOp(ih)) != null) continue;
if ((next = createIfThenElseOperator(ih)) != null) continue;
if ((next = createAssignExpression(ih)) != null) continue;
if ((next = createConstantArray(ih)) != null) continue;

2
jode/jode/decompiler/LocalInfo.java
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@ -92,7 +92,7 @@ public class LocalInfo {
*/
public Type setType(Type newType) {
if (shadow != null)
return shadow.setType(type);
return shadow.setType(newType);
this.type = MyType.intersection(this.type, newType);
if (this.type == MyType.tError)
System.err.println("Type error in "+name.toString());

7
jode/jode/decompiler/LocalVariableAnalyzer.java
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@ -196,11 +196,16 @@ public class LocalVariableAnalyzer {
throws java.io.IOException
{
Enumeration enum = locals.elements();
VAR:
while (enum.hasMoreElements()) {
LocalInfo li = (LocalInfo) enum.nextElement();
if (!li.isShadow())
if (!li.isShadow()) {
for (int i=0; i< argLocals.length; i++)
if (argLocals[i].getLocalInfo() == li)
continue VAR;
writer.println(env.getTypeString(li.getType(),
li.getName())+";");
}
}
}
}

8
jode/jode/expr/ArrayLoadOperator.java
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@ -34,10 +34,12 @@ public class ArrayLoadOperator extends SimpleOperator {
public void setOperandType(Type[] t) {
super.setOperandType(t);
// if (operandTypes[0] instanceof ArrayType)
try {
type = operandTypes[0].getElementType();
// else
// type = Type.tError;
} catch (sun.tools.java.CompilerError err) {
System.err.println("No Array type: "+operandTypes[0]);
type = Type.tError;
}
}
public String toString(String[] operands) {

2
jode/jode/expr/ArrayStoreOperator.java
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@ -36,7 +36,6 @@ public class ArrayStoreOperator extends StoreInstruction {
*/
public boolean setLValueType(Type type) {
this.lvalueType = type;
System.err.println("Setting Lvalue type to "+lvalueType);
return true;
}
@ -54,6 +53,7 @@ public class ArrayStoreOperator extends StoreInstruction {
try {
lvalueType = arrayType.getElementType();
} catch (sun.tools.java.CompilerError err) {
System.err.println("No Array type: "+arrayType);
lvalueType = Type.tError;
}
}

2
jode/jode/expr/ConstOperator.java
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@ -46,7 +46,7 @@ public class ConstOperator extends NoArgOperator {
}
public String toString(String[] operands) {
if (type == Type.tString)
if (MyType.isOfType(type, Type.tString))
return quoted(value);
if (type == Type.tBoolean) {
if (value.equals("0"))

4
jode/jode/expr/ConstructorOperator.java
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@ -25,8 +25,8 @@ public class ConstructorOperator extends Operator {
public Type getOperandType(int i) {
if (i == 0)
return type;
return field.getType().getArgumentTypes()[i-1];
return MyType.tSubType(type);
return MyType.tSubType(field.getType().getArgumentTypes()[i-1]);
}
public void setOperandType(Type types[]) {

63
jode/jode/expr/Expression.java
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@ -52,7 +52,7 @@ public class Expression extends Instruction {
if (e.operator instanceof StoreInstruction) {
StoreInstruction store = (StoreInstruction) e.operator;
Expression search = this;
while (search.subExpressions.length > 0) {
while (true) {
if (store.matches(search.operator)) {
int i;
for (i=0; i < e.subExpressions.length-1; i++) {
@ -62,12 +62,20 @@ public class Expression extends Instruction {
}
if (i == e.subExpressions.length-1) {
search.operator =
new AssignOperator(store.getOperator(), store);
new AssignOperator(store.getOperator(), store);
search.subExpressions = e.subExpressions;
return this;
}
}
search = search.subExpressions[0];
if (search.subExpressions.length == 0)
break;
if (search.getOperator() instanceof AssignOperator)
search = search.subExpressions[subExpressions.length-1];
else if (search.getOperator() instanceof StringAddOperator &&
search.subExpressions[1] == emptyString)
search = search.subExpressions[1];
else
search = search.subExpressions[0];
}
}
return null;
@ -107,9 +115,8 @@ public class Expression extends Instruction {
if (operator.getPriority() < minPriority) {
result = "("+result+")";
}
if (operator.casts.indexOf("/*",0) >= 0 ||
operator.casts.indexOf("<-",0) >= 0 && false)
result = "<"+operator.casts+" "+result+">";
if (operator.getType() == MyType.tError)
result = "(/*type error */" + result+")";
return result;
}
@ -134,12 +141,16 @@ public class Expression extends Instruction {
return toString(0);
}
static Expression emptyString =
new Expression(new EmptyStringOperator(), new Expression[0]);
Expression simplifyStringBuffer() {
FieldDefinition field;
if (operator instanceof InvokeOperator &&
(field = ((InvokeOperator)operator).getField())
.getClassDefinition().getName() ==
Constants.idJavaLangStringBuffer &&
!((InvokeOperator)operator).isStatic() &&
field.getName() == Constants.idAppend &&
field.getType().getArgumentTypes().length == 1) {
@ -148,20 +159,21 @@ public class Expression extends Instruction {
return null;
if (e.operator instanceof EmptyStringOperator &&
subExpressions[1].getType() == Type.tString)
MyType.isOfType(subExpressions[1].getType(), Type.tString))
return subExpressions[1];
Expression[] exprs = { e, subExpressions[1] };
Expression[] exprs = { e,
(Expression)subExpressions[1].simplify() };
return new Expression(new StringAddOperator(), exprs);
}
if (operator instanceof ConstructorOperator &&
operator.getType() == MyType.tStringBuffer) {
MyType.isOfType(operator.getType(), MyType.tStringBuffer)) {
if (operator.getOperandCount() == 1)
return new Expression(new EmptyStringOperator(),
new Expression[0]);
return emptyString;
else if (operator.getOperandCount() == 2 &&
subExpressions[1].getType() == MyType.tString)
return subExpressions[1];
MyType.isOfType(subExpressions[1].getType(),
MyType.tString))
return (Expression) subExpressions[1].simplify();
}
return null;
}
@ -210,14 +222,31 @@ public class Expression extends Instruction {
if (operator instanceof InvokeOperator &&
((InvokeOperator)operator).getField().
getName() == Constants.idToString &&
!((InvokeOperator)operator).isStatic() &&
((InvokeOperator)operator).getField().
getClassDefinition().getType() == MyType.tStringBuffer &&
operator.getOperandCount() == 1) {
Expression e = subExpressions[0].simplifyStringBuffer();
if (e != null)
return e.simplify();
Instruction simple = subExpressions[0].simplifyStringBuffer();
if (simple != null)
return simple;
}
if (operator instanceof InvokeOperator &&
((InvokeOperator)operator).getField().
getName() == Constants.idValueOf &&
((InvokeOperator)operator).isStatic() &&
((InvokeOperator)operator).getField().
getClassDefinition().getType() == MyType.tString &&
operator.getOperandCount() == 1) {
if (subExpressions[0].getType() == MyType.tString)
return subExpressions[0].simplify();
else {
Expression[] exprs = {
emptyString,
(Expression) subExpressions[0].simplify()
};
return new Expression(new StringAddOperator(), exprs);
}
}
for (int i=0; i< subExpressions.length; i++)
subExpressions[i] = (Expression) subExpressions[i].simplify();

22
jode/jode/expr/InstructionHeader.java
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@ -160,10 +160,19 @@ public class InstructionHeader {
if (predecessors.size() != 1)
return null;
InstructionHeader pre = (InstructionHeader)predecessors.elementAt(0);
return (pre.getNextInstruction() == this &&
pre.getSuccessors().length != 1) ? null : pre;
return (pre.getNextInstruction() == this) ? pre : null;
}
/**
* Get the unique predecessor which mustn't be a (un)conditional jump
* @return the predecessor or null if there isn't a such a thing
*/
public InstructionHeader getSimpleUniquePredecessor() {
InstructionHeader pre = getUniquePredecessor();
return (pre.getSuccessors().length != 1) ? null : pre;
}
/**
* Get the predecessors of this instruction. This function mustn't
* be called before resolveSuccessors is executed for all
@ -199,6 +208,15 @@ public class InstructionHeader {
writer.println("<"+addr + " - "+(addr+length-1)+">");
writer.tab();
}
// writer.print("predecs: ");
// for (int i=0; i<predecessors.size(); i++) {
// if (i>0) writer.print(", ");
// writer.print(""+((InstructionHeader)predecessors.elementAt(i)).
// getAddress());
// }
// writer.println("");
if (!hasDirectPredecessor() && addr != 0)
writer.print("addr_"+addr+": ");

4
jode/jode/expr/InvokeOperator.java
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@ -17,6 +17,10 @@ public class InvokeOperator extends Operator {
this.field = field;
}
public boolean isStatic() {
return staticFlag;
}
public FieldDefinition getField() {
return field;
}

4
jode/jode/expr/LocalLoadOperator.java
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@ -29,12 +29,12 @@ implements LocalVarOperator {
}
public Type getType() {
System.err.println("LocalLoad.getType of "+local.getName()+": "+local.getType());
// System.err.println("LocalLoad.getType of "+local.getName()+": "+local.getType());
return local.getType();
}
public boolean setType(Type type) {
System.err.println("LocalLoad.setType of "+local.getName()+": "+local.getType());
// System.err.println("LocalLoad.setType of "+local.getName()+": "+local.getType());
return super.setType(local.setType(type));
}

4
jode/jode/expr/LocalStoreOperator.java
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@ -29,12 +29,12 @@ implements LocalVarOperator {
}
public Type getLValueType() {
System.err.println("LocalStore.getType of "+local.getName()+": "+local.getType());
// System.err.println("LocalStore.getType of "+local.getName()+": "+local.getType());
return local.getType();
}
public boolean setLValueType(Type type) {
System.err.println("LocalStore.setType of "+local.getName()+": "+local.getType());
// System.err.println("LocalStore.setType of "+local.getName()+": "+local.getType());
return super.setLValueType
(local.setType(MyType.tSuperType(type)));
}

12
jode/jode/expr/Operator.java
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@ -11,6 +11,8 @@ public abstract class Operator extends Instruction {
public final static int INC_OP = 24; /* must be even! */
public final static int DEC_OP = 25;
public final static int COMPARE_OP = 26; /* must be even! */
public final static int EQUALS_OP = 26;
public final static int NOTEQUALS_OP = 27;
public final static int LOG_AND_OP = 32; /* must be even! */
public final static int LOG_OR_OP = 33;
public final static int LOG_NOT_OP = 34;
@ -26,14 +28,11 @@ public abstract class Operator extends Instruction {
protected int operator;
String casts;
Operator (Type type, int op) {
super(type);
this.operator = op;
if (type == null)
throw new AssertError("type == null");
casts = type.toString();
}
public int getOperator() {
@ -48,12 +47,7 @@ public abstract class Operator extends Instruction {
* @return true if the operand types changed
*/
public boolean setType(Type type) {
// if (!MyType.isOfType(type, this.type)) {
// casts = type.toString()+"/*invalid*/ <- " + casts;
// } else if (type != this.type) {
// casts = type.toString()+" <- " + casts;
// }
// this.type = type;
this.type = type;
return false;
}

2
jode/jode/expr/ReturnOperator.java
Unescape View File

@ -5,7 +5,7 @@ public class ReturnOperator extends SimpleOperator {
public ReturnOperator(Type type) {
super(Type.tVoid, 0, (type == Type.tVoid)?0:1);
if (type != Type.tVoid)
operandTypes[0] = type;
operandTypes[0] = MyType.tSubType(type);
}
public int getPriority() {

2
jode/jode/expr/SwapOperator.java
Unescape View File

@ -2,7 +2,7 @@ package jode;
public class SwapOperator extends Instruction {
public SwapOperator() {
super(MyType.tError);
super(MyType.tVoid);
}
public String toString()

79
jode/jode/type/ClassRangeType.java
Unescape View File

@ -36,6 +36,13 @@ public class ClassRangeType extends MyType {
// Fahrzeug, Fahrrad <Fahrzeug, Fahrrad>
// int , Fahrrad error
if (bottom != null && bottom.getTypeCode() == 103) {
bottom = ((ClassRangeType)bottom).bottomType;
}
if (top != null && top.getTypeCode() == 103) {
top = ((ClassRangeType)top).topType;
}
/* First the trivial cases
*/
if (top == tError || bottom == tError)
@ -49,13 +56,31 @@ public class ClassRangeType extends MyType {
/* <null, object> -> <tObject, object>
* if bottom is tObject, its okay.
*/
if (bottom == null || bottom == tObject)
if (bottom == top)
return bottom;
if (top.getTypeCode() <= 4 && bottom == null)
return top;
if (bottom != null && bottom.getTypeCode() <= 4 &&
top.getTypeCode() <= bottom.getTypeCode())
return bottom;
if (top.getTypeCode() != 9 && top.getTypeCode() != 10)
return tError;
if (bottom == null || bottom == tObject)
return new ClassRangeType(tObject, top);
/* now bottom != null and top != null */
if (bottom.getTypeCode() == 9 && top.getTypeCode() == 9)
return tArray(createRangeType(bottom.getElementType(),
top.getElementType()));
if (bottom.getTypeCode() == 9 && top.getTypeCode() == 9) {
Type type = createRangeType(bottom.getElementType(),
top.getElementType());
if (type == tError)
return tError;
return tArray(type);
}
if (bottom.getTypeCode() != 10 || top.getTypeCode() != 10)
return tError;
@ -129,7 +154,7 @@ public class ClassRangeType extends MyType {
return tArray(getSpecializedType(t1.getElementType(),
t2.getElementType()));
if (t1.getTypeCode() != 10 && t2.getTypeCode() != 10)
if (t1.getTypeCode() != 10 || t2.getTypeCode() != 10)
return tError;
/* Now we have two classes or interfaces. The result should
@ -171,8 +196,8 @@ public class ClassRangeType extends MyType {
* Since the while condition is moved to the bottom of
* the loop, the type information of foo is only available
* <em>after</em> the two interface methods are called.
* The current code would produce tError. */
* The current code would produce tError.
*/
ClassDeclaration c1 = new ClassDeclaration(t1.getClassName());
ClassDeclaration c2 = new ClassDeclaration(t2.getClassName());
@ -182,10 +207,10 @@ public class ClassRangeType extends MyType {
return t2;
if (c2.getClassDefinition(env).superClassOf(env, c1))
return t1;
// if (c1.getClassDefinition(env).implementedBy(env, c2))
// return t2;
// if (c2.getClassDefinition(env).implementedBy(env, c1))
// return t1;
if (c1.getClassDefinition(env).implementedBy(env, c2))
return t2;
if (c2.getClassDefinition(env).implementedBy(env, c1))
return t1;
} catch (ClassNotFound ex) {
}
return tError;
@ -231,7 +256,7 @@ public class ClassRangeType extends MyType {
return tArray(getGeneralizedType(t1.getElementType(),
t2.getElementType()));
if (t1.getTypeCode() != 10 && t2.getTypeCode() != 10)
if (t1.getTypeCode() != 10 || t2.getTypeCode() != 10)
return tError;
/* This code is not always correct:
@ -264,14 +289,14 @@ public class ClassRangeType extends MyType {
ClassDeclaration c2 = new ClassDeclaration(t2.getClassName());
try {
// /* if one of the two types is an interface which
// * is implemented by the other type the interface
// * is the result.
// */
// if (c1.getClassDefinition(env).implementedBy(env, c2))
// return t1;
// if (c2.getClassDefinition(env).implementedBy(env, c1))
// return t2;
/* if one of the two types is an interface which
* is implemented by the other type the interface
* is the result.
*/
if (c1.getClassDefinition(env).implementedBy(env, c2))
return t1;
if (c2.getClassDefinition(env).implementedBy(env, c1))
return t2;
ClassDefinition c = c1.getClassDefinition(env);
while(c != null && !c.superClassOf(env, c2)) {
@ -289,14 +314,12 @@ public class ClassRangeType extends MyType {
Type bottom = getSpecializedType(bottomType, type.bottomType);
Type top = getGeneralizedType(topType, type.topType);
System.err.println("intersecting "+ this +" and "+ type +
" to <" + bottom + "-" + top + ">");
try {
throw new AssertError("in:");
} catch(AssertError error) {
error.printStackTrace();
}
return createRangeType(bottom,top);
Type newType = createRangeType(bottom,top);
if (newType == tError)
System.err.println("intersecting "+ this +" and "+ type +
" to <" + bottom + "-" + top +
"> to <error>");
return newType;
}
public boolean intersects(ClassRangeType type)

70
jode/jode/type/MyType.java
Unescape View File

@ -94,7 +94,7 @@ public class MyType extends Type {
* @return the intersection, or tError, if a type conflict happens.
*/
public static Type intersection(Type t1, Type t2) {
System.err.println("intersecting "+ t1 +" and "+ t2);
// System.err.println("intersecting "+ t1 +" and "+ t2);
/* Trivial cases first.
*/
if (t1 == t2 || t2 == tUnknown)
@ -123,10 +123,11 @@ public class MyType extends Type {
/* Now it must be a class range type, or we have lost!
*/
if (t1.getTypeCode() != 103 || t2.getTypeCode() != 103)
throw new AssertError("Types incompatible: "+
t1.toString()+","+ t2.toString());
// return tError;
if (t1.getTypeCode() != 103 || t2.getTypeCode() != 103) {
System.err.println("intersecting "+ t1 +" and "+ t2 +
" to <error>");
return tError;
}
return ((ClassRangeType)t1).getIntersection((ClassRangeType)t2);
}
@ -140,60 +141,13 @@ public class MyType extends Type {
}
/**
* Check if t1 is in &lt;unknown -- t2&rt;.
* @return true if t1 is a more specific type than t2, e.g.
* if t2 is a superclass of t1
* @deprecated think about it, you don't need it! (I think)
* this code is probably broken so don't use it!
* Check if t1 and &lt;unknown -- t2&rt; are not disjunct.
* @param t1 the type that should be checked
* @param t2 a simple type; this mustn't be a range type.
* @return true if this is the case.
*/
public static boolean isOfType(Type t1, Type t2) {
if ((t1 == t2 || t2 == tUnknown) && t1 != tError)
return true;
switch (t1.getTypeCode()) {
case 0: /* boolean*/
case 1: /* byte */
case 2: /* char */
case 3: /* short */
case 4: /* int */
/* JavaC thinks, that this is okay. */
if (t2.getTypeCode() >= 0 && t2.getTypeCode() <=4)
return true;
// /* fallthrough */
// case 104: /* unknown index */
// if (t2 == tUInt)
// return true;
break;
case 5: /* long */
case 6: /* float */
case 7: /* double */
case 8: /* null? */
case 11: /* void */
case 12: /* method */
case 13: /* error */
// case 101: /* unknown int */
/* This are only to themself compatible */
break;
case 9: /* array */
case 10: /* class */
t1 = new ClassRangeType(t1, null);
/* fall through */
case 103: /* class range type */
if (t2.getTypeCode() == 103)
return ((ClassRangeType)t1).intersects((ClassRangeType)t2);
if (t2.getTypeCode() == 9 || t2.getTypeCode() == 10)
return ((ClassRangeType)t1).
intersects(new ClassRangeType(t2, null));
break;
default:
throw new AssertError("Wrong typeCode "+t1.getTypeCode());
}
return false;
return (ClassRangeType.getGeneralizedType(t1,t2) == t2 &&
ClassRangeType.getSpecializedType(t1,t2) == t2);
}
}

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