openrs2
/
jode
0
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

transforms access methods

Browse Source 
class.super() handling for inner classes
scope handling


git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@744 379699f6-c40d-0410-875b-85095c16579e
stable
jochen 25 years ago
parent c0e9183459
commit 93244afa2c
1 changed files with 171 additions and 32 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 203
      jode/jode/expr/InvokeOperator.java

203
jode/jode/expr/InvokeOperator.java
Unescape View File

@ -18,7 +18,9 @@
*/
package jode.expr;
import jode.Decompiler;
import jode.decompiler.CodeAnalyzer;
import jode.decompiler.MethodAnalyzer;
import jode.decompiler.ClassAnalyzer;
import jode.decompiler.TabbedPrintWriter;
import jode.GlobalOptions;
@ -26,6 +28,7 @@ import jode.bytecode.*;
import jode.jvm.*;
import jode.type.*;
import java.lang.reflect.InvocationTargetException;
import jode.decompiler.Scope;
public final class InvokeOperator extends Operator
implements MatchableOperator {
@ -34,7 +37,7 @@ public final class InvokeOperator extends Operator
boolean specialFlag;
MethodType methodType;
String methodName;
Type clazz;
Type classType;
public InvokeOperator(CodeAnalyzer codeAnalyzer,
boolean staticFlag, boolean specialFlag,
@ -42,13 +45,13 @@ public final class InvokeOperator extends Operator
super(Type.tUnknown, 0);
this.methodType = (MethodType) Type.tType(reference.getType());
this.methodName = reference.getName();
this.clazz = Type.tType(reference.getClazz());
this.classType = Type.tType(reference.getClazz());
this.type = methodType.getReturnType();
this.codeAnalyzer = codeAnalyzer;
this.staticFlag = staticFlag;
this.specialFlag = specialFlag;
if (staticFlag)
codeAnalyzer.useType(clazz);
codeAnalyzer.useType(classType);
}
/**
@ -83,7 +86,7 @@ public final class InvokeOperator extends Operator
}
public Type getClassType() {
return clazz;
return classType;
}
public int getPriority() {
@ -111,26 +114,89 @@ public final class InvokeOperator extends Operator
return methodName.equals("<init>");
}
public ClassInfo getClassInfo() {
if (classType instanceof ClassInterfacesType)
return ((ClassInterfacesType) classType).getClassInfo();
return null;
}
/**
* Checks, whether this is a call of a method from this class.
* @XXX check, if this class implements the method and if not
* allow super class
*/
public boolean isThis() {
if (clazz instanceof ClassInterfacesType) {
return ((ClassInterfacesType) clazz).getClassInfo()
== codeAnalyzer.getClazz();
return getClassInfo() == codeAnalyzer.getClazz();
}
public ClassInfo getOuterClass() {
ClassInfo clazz = getClassInfo();
if (clazz != null) {
InnerClassInfo[] outers = clazz.getOuterClasses();
if (outers != null && outers[0].outer != null
&& (Decompiler.options & Decompiler.OPTION_INNER) != 0)
return ClassInfo.forName(outers[0].outer);
}
return null;
}
/**
* Checks, whether this is a call of a method from this class or an
* outer instance.
*/
public boolean isOuter() {
if (classType instanceof ClassInterfacesType) {
ClassAnalyzer ana = codeAnalyzer.getClassAnalyzer();
while (true) {
if (((ClassInterfacesType) classType).getClassInfo()
== ana.getClazz())
return true;
if (ana.getParent() instanceof CodeAnalyzer
&& (Decompiler.options & Decompiler.OPTION_ANON) != 0)
ana = ((CodeAnalyzer) ana.getParent())
.getClassAnalyzer();
else if (ana.getParent() instanceof ConstructorOperator
&& (Decompiler.options & Decompiler.OPTION_ANON) != 0)
ana = ((ConstructorOperator) ana.getParent())
.getCodeAnalyzer().getClassAnalyzer();
else if (ana.getParent() instanceof ClassAnalyzer
&& (Decompiler.options
& Decompiler.OPTION_INNER) != 0)
ana = (ClassAnalyzer) ana.getParent();
else
return false;
}
}
return false;
}
public MethodAnalyzer getMethodAnalyzer() {
if (classType instanceof ClassInterfacesType) {
ClassAnalyzer ana = codeAnalyzer.getClassAnalyzer();
while (true) {
if (((ClassInterfacesType) classType).getClassInfo()
== ana.getClazz()) {
return ana.getMethod(methodName, methodType);
}
if (ana.getParent() instanceof MethodAnalyzer)
ana = ((MethodAnalyzer) ana.getParent())
.getClassAnalyzer();
else if (ana.getParent() instanceof ClassAnalyzer)
ana = (ClassAnalyzer) ana.getParent();
else
return null;
}
}
return null;
}
/**
* Checks, whether this is a call of a method from the super class.
* @XXX check, if its the first super class that implements the method.
*/
public boolean isSuperOrThis() {
if (clazz instanceof ClassInterfacesType) {
return ((ClassInterfacesType) clazz).getClassInfo()
if (classType instanceof ClassInterfacesType) {
return ((ClassInterfacesType) classType).getClassInfo()
.superClassOf(codeAnalyzer.getClazz());
}
return false;
@ -139,16 +205,20 @@ public final class InvokeOperator extends Operator
public void dumpExpression(TabbedPrintWriter writer,
Expression[] operands)
throws java.io.IOException {
boolean opIsThis =
(!staticFlag
&& operands[0] instanceof LocalLoadOperator
&& !codeAnalyzer.getMethod().isStatic()
&& (((LocalLoadOperator) operands[0]).getLocalInfo()
.equals(codeAnalyzer.getParamInfo(0))));
boolean opIsThis = !staticFlag && operands[0] instanceof ThisOperator;
int arg = 1;
if (isConstructor()) {
ClassInfo outer = getOuterClass();
if (outer != null) {
operands[arg++].dumpExpression(writer, 0);
writer.print(".");
}
}
if (specialFlag) {
if (opIsThis) {
if (opIsThis
&& (((ThisOperator)operands[0]).getClassInfo()
== codeAnalyzer.getClazz())) {
if (isThis()) {
/* XXX check if this is a private or final method. */
} else {
@ -159,29 +229,42 @@ public final class InvokeOperator extends Operator
}
} else {
/* XXX check if this is a private or final method. */
int minPriority = 950; /* field access */
if (!isThis()) {
writer.print("(NON VIRTUAL ");
writer.printType(clazz);
writer.printType(classType);
writer.print(")");
minPriority = 700;
}
operands[0].dumpExpression(writer, 950);
operands[0].dumpExpression(writer, minPriority);
}
} else if (staticFlag) {
arg = 0;
if (isThis())
Scope scope = writer.getScope(getClassInfo(),
Scope.CLASSSCOPE);
if (scope != null
&& !writer.conflicts(methodName, scope, Scope.METHODNAME))
opIsThis = true;
else
writer.printType(clazz);
writer.printType(classType);
} else {
if (!opIsThis) {
int minPriority = 950; /* field access */
if (opIsThis) {
ThisOperator thisOp = (ThisOperator) operands[0];
Scope scope = writer.getScope(thisOp.getClassInfo(),
Scope.CLASSSCOPE);
if (writer.conflicts(methodName, scope, Scope.METHODNAME)) {
thisOp.dumpExpression(writer, 950);
writer.print(".");
}
} else {
if (operands[0].getType() instanceof NullType) {
writer.print("(");
writer.printType(clazz);
writer.print("((");
writer.printType(classType);
writer.print(") ");
minPriority = 700;
}
operands[0].dumpExpression(writer, minPriority);
operands[0].dumpExpression(writer, 700);
writer.print(")");
} else
operands[0].dumpExpression(writer, 950);
}
}
@ -194,9 +277,12 @@ public final class InvokeOperator extends Operator
writer.print(methodName);
}
writer.print("(");
for (int i=0; i < methodType.getParameterTypes().length; i++) {
if (i>0)
boolean first = true;
while (arg < operands.length) {
if (!first)
writer.print(", ");
else
first = false;
operands[arg++].dumpExpression(writer, 0);
}
writer.print(")");
@ -207,9 +293,12 @@ public final class InvokeOperator extends Operator
* @return true if this is the magic class$ method, false otherwise.
*/
public boolean isGetClass() {
return isThis()
&& codeAnalyzer.getClassAnalyzer()
.getMethod(methodName, methodType).isGetClass();
if (isThis()) {
SyntheticAnalyzer synth = getMethodAnalyzer().getSynthetic();
if (synth != null && synth.getKind() == SyntheticAnalyzer.GETCLASS)
return true;
}
return false;
}
class Environment extends SimpleRuntimeEnvironment {
@ -272,6 +361,56 @@ public final class InvokeOperator extends Operator
return new ConstOperator(result);
}
public Expression simplifyAccess(Expression[] subs) {
if (isOuter()) {
SyntheticAnalyzer synth = getMethodAnalyzer().getSynthetic();
if (synth != null) {
Operator op = null;
switch (synth.getKind()) {
case SyntheticAnalyzer.ACCESSGETFIELD:
op = new GetFieldOperator(codeAnalyzer, false,
synth.getReference());
break;
case SyntheticAnalyzer.ACCESSGETSTATIC:
op = new GetFieldOperator(codeAnalyzer, true,
synth.getReference());
break;
case SyntheticAnalyzer.ACCESSPUTFIELD:
op = new PutFieldOperator(codeAnalyzer, false,
synth.getReference());
break;
case SyntheticAnalyzer.ACCESSPUTSTATIC:
op = new PutFieldOperator(codeAnalyzer, true,
synth.getReference());
break;
case SyntheticAnalyzer.ACCESSMETHOD:
op = new InvokeOperator(codeAnalyzer, false,
false, synth.getReference());
break;
case SyntheticAnalyzer.ACCESSSTATICMETHOD:
op = new InvokeOperator(codeAnalyzer, true,
false, synth.getReference());
break;
}
if (op != null) {
if (subs == null)
return op;
return new ComplexExpression(op, subs);
}
}
}
return null;
}
public Expression simplify() {
Expression expr = simplifyAccess(null);
if (expr != null)
return expr.simplify();
return super.simplify();
}
/* Invokes never equals: they may return different values even if
* they have the same parameters.
*/

Write Preview
Loading…
Cancel
Save