protected boolean installSyntheticVTablePtr(Type type, NativeLibrary library, Pointer<?> peer) {
synchronized (syntheticVirtualTables) {
VTable vtable = syntheticVirtualTables.get(type);
if (vtable == null) {
if (!typesThatDontNeedASyntheticVirtualTable.contains(type)) {
List<VirtMeth> methods = new ArrayList<VirtMeth>();
listVirtualMethods(Utils.getClass(type), methods);
boolean needsASyntheticVirtualTable = false;
for (VirtMeth method : methods)
if (!Modifier.isNative(method.implementation.getModifiers())) {
needsASyntheticVirtualTable = true;
break;
}
if (needsASyntheticVirtualTable) {
Type parentType = Utils.getParent(type);
Pointer<Pointer> parentVTablePtr = null;
if (CPPObject.class.isAssignableFrom(Utils.getClass(parentType))) {
parentVTablePtr = peer.getPointer(Pointer.class);
if (BridJ.debug) {
BridJ.info(
"Found parent virtual table pointer = "
+ ptrToString(parentVTablePtr, library));
/*Pointer<Pointer> expectedParentVTablePtr = pointerToAddress(getVirtualTable(parentType, library), Pointer.class);
if (expectedParentVTablePtr != null && !Utils.eq(parentVTablePtr, expectedParentVTablePtr))
BridJ.warning("Weird parent virtual table pointer : expected " + ptrToString(expectedParentVTablePtr, library) + ", got " + ptrToString(parentVTablePtr, library));
*/
}
// parentVTablePtr = pointerToAddress(getVirtualTable(parentType, library),
// Pointer.class);
}
syntheticVirtualTables.put(
type, vtable = synthetizeVirtualTable(type, parentVTablePtr, methods, library));
} else {
typesThatDontNeedASyntheticVirtualTable.add(type);
}
}
}
if (vtable != null) {
if (BridJ.debug)
BridJ.info(
"Installing synthetic vtable pointer "
+ vtable.ptr
+ " to instance at "
+ peer
+ " (type = "
+ Utils.toString(type)
+ ", "
+ vtable.callbacks.size()
+ " callbacks)");
peer.setPointer(vtable.ptr);
return vtable.ptr != null;
} else return false;
}
}
