/** Helper that updates the dex statistics. */
private static void updateDexStatistics(
CfOptions cfOptions,
DexOptions dexOptions,
RopMethod optRmeth,
RopMethod nonOptRmeth,
LocalVariableInfo locals,
int paramSize,
int originalByteCount) {
/*
* Run rop->dex again on optimized vs. non-optimized method to
* collect statistics. We have to totally convert both ways,
* since converting the "real" method getting added to the
* file would corrupt it (by messing with its constant pool
* indices).
*/
DalvCode optCode =
RopTranslator.translate(optRmeth, cfOptions.positionInfo, locals, paramSize, dexOptions);
DalvCode nonOptCode =
RopTranslator.translate(nonOptRmeth, cfOptions.positionInfo, locals, paramSize, dexOptions);
/*
* Fake out the indices, so code.getInsns() can work well enough
* for the current purpose.
*/
DalvCode.AssignIndicesCallback callback =
new DalvCode.AssignIndicesCallback() {
public int getIndex(Constant cst) {
// Everything is at index 0!
return 0;
}
};
optCode.assignIndices(callback);
nonOptCode.assignIndices(callback);
CodeStatistics.updateDexStatistics(nonOptCode, optCode);
CodeStatistics.updateOriginalByteCount(originalByteCount);
}
/**
* Processes the methods of the given class.
*
* @param cf {@code non-null;} class being translated
* @param cfOptions {@code non-null;} options for class translation
* @param dexOptions {@code non-null;} options for dex output
* @param out {@code non-null;} output class
*/
private static void processMethods(
DirectClassFile cf, CfOptions cfOptions, DexOptions dexOptions, ClassDefItem out) {
CstType thisClass = cf.getThisClass();
MethodList methods = cf.getMethods();
int sz = methods.size();
for (int i = 0; i < sz; i++) {
Method one = methods.get(i);
try {
CstMethodRef meth = new CstMethodRef(thisClass, one.getNat());
int accessFlags = one.getAccessFlags();
boolean isStatic = AccessFlags.isStatic(accessFlags);
boolean isPrivate = AccessFlags.isPrivate(accessFlags);
boolean isNative = AccessFlags.isNative(accessFlags);
boolean isAbstract = AccessFlags.isAbstract(accessFlags);
boolean isConstructor = meth.isInstanceInit() || meth.isClassInit();
DalvCode code;
if (isNative || isAbstract) {
// There's no code for native or abstract methods.
code = null;
} else {
ConcreteMethod concrete =
new ConcreteMethod(
one, cf, (cfOptions.positionInfo != PositionList.NONE), cfOptions.localInfo);
TranslationAdvice advice;
advice = DexTranslationAdvice.THE_ONE;
RopMethod rmeth = Ropper.convert(concrete, advice);
RopMethod nonOptRmeth = null;
int paramSize;
paramSize = meth.getParameterWordCount(isStatic);
String canonicalName =
thisClass.getClassType().getDescriptor() + "." + one.getName().getString();
if (cfOptions.optimize && OptimizerOptions.shouldOptimize(canonicalName)) {
if (DEBUG) {
System.err.println("Optimizing " + canonicalName);
}
nonOptRmeth = rmeth;
rmeth = Optimizer.optimize(rmeth, paramSize, isStatic, cfOptions.localInfo, advice);
if (DEBUG) {
OptimizerOptions.compareOptimizerStep(
nonOptRmeth, paramSize, isStatic, cfOptions, advice, rmeth);
}
if (cfOptions.statistics) {
CodeStatistics.updateRopStatistics(nonOptRmeth, rmeth);
}
}
LocalVariableInfo locals = null;
if (cfOptions.localInfo) {
locals = LocalVariableExtractor.extract(rmeth);
}
code =
RopTranslator.translate(rmeth, cfOptions.positionInfo, locals, paramSize, dexOptions);
if (cfOptions.statistics && nonOptRmeth != null) {
updateDexStatistics(
cfOptions,
dexOptions,
rmeth,
nonOptRmeth,
locals,
paramSize,
concrete.getCode().size());
}
}
// Preserve the synchronized flag as its "declared" variant...
if (AccessFlags.isSynchronized(accessFlags)) {
accessFlags |= AccessFlags.ACC_DECLARED_SYNCHRONIZED;
/*
* ...but only native methods are actually allowed to be
* synchronized.
*/
if (!isNative) {
accessFlags &= ~AccessFlags.ACC_SYNCHRONIZED;
}
}
if (isConstructor) {
accessFlags |= AccessFlags.ACC_CONSTRUCTOR;
}
TypeList exceptions = AttributeTranslator.getExceptions(one);
EncodedMethod mi = new EncodedMethod(meth, accessFlags, code, exceptions);
if (meth.isInstanceInit() || meth.isClassInit() || isStatic || isPrivate) {
out.addDirectMethod(mi);
} else {
out.addVirtualMethod(mi);
}
Annotations annotations = AttributeTranslator.getMethodAnnotations(one);
if (annotations.size() != 0) {
out.addMethodAnnotations(meth, annotations);
}
AnnotationsList list = AttributeTranslator.getParameterAnnotations(one);
if (list.size() != 0) {
out.addParameterAnnotations(meth, list);
}
} catch (RuntimeException ex) {
String msg =
"...while processing " + one.getName().toHuman() + " " + one.getDescriptor().toHuman();
throw ExceptionWithContext.withContext(ex, msg);
}
}
}