public int getPositionInVirtualTable(
Pointer<Pointer<?>> pVirtualTable, Method method, NativeLibrary library) {
// Pointer<?> typeInfo = pVirtualTable.get(1);
int methodsOffset = 0; // library.isMSVC() ? 0 : -2;///2;
String className = getCPPClassName(method.getDeclaringClass());
for (int iVirtual = 0; ; iVirtual++) {
Pointer<?> pMethod = pVirtualTable.get(methodsOffset + iVirtual);
String virtualMethodName = pMethod == null ? null : library.getSymbolName(pMethod.getPeer());
// System.out.println("#\n# At index " + methodsOffset + " + " + iVirtual + " of vptr for
// class " + className + ", found symbol " + Long.toHexString(pMethod.getPeer()) + " = '" +
// virtualMethodName + "'\n#");
if (virtualMethodName == null) {
if (debug) info("\tVtable(" + className + ")[" + iVirtual + "] = null");
return -1;
}
try {
MemberRef mr = library.parseSymbol(virtualMethodName);
if (debug)
info("\tVtable(" + className + ")[" + iVirtual + "] = " + virtualMethodName + " = " + mr);
if (mr != null && mr.matchesSignature(method)) return iVirtual;
else if (library.isMSVC() && !mr.matchesEnclosingType(method))
break; // no NULL terminator in MSVC++ vtables, so we have to guess when we've reached the
// end
} catch (Demangler.DemanglingException ex) {
BridJ.warning(
"Failed to demangle '"
+ virtualMethodName
+ "' during inspection of virtual table for '"
+ method.toGenericString()
+ "' : "
+ ex);
}
}
return -1;
}
private String ptrToString(Pointer<?> ptr, NativeLibrary library) {
return ptr == null
? "null"
: Long.toHexString(ptr.getPeer()) + " (" + library.getSymbolName(ptr.getPeer()) + ")";
}