// Convert converts a CFTypeRef to a go instance.
func Convert(ref C.CFTypeRef) (interface{}, error) {
typeID := C.CFGetTypeID(ref)
if typeID == C.CFStringGetTypeID() {
return CFStringToString(C.CFStringRef(ref)), nil
} else if typeID == C.CFDictionaryGetTypeID() {
return ConvertCFDictionary(C.CFDictionaryRef(ref))
} else if typeID == C.CFArrayGetTypeID() {
arr := CFArrayToArray(C.CFArrayRef(ref))
results := make([]interface{}, 0, len(arr))
for _, ref := range arr {
v, err := Convert(ref)
if err != nil {
return nil, err
}
results = append(results, v)
return results, nil
}
} else if typeID == C.CFDataGetTypeID() {
b, err := CFDataToBytes(C.CFDataRef(ref))
if err != nil {
return nil, err
}
return b, nil
} else if typeID == C.CFNumberGetTypeID() {
return CFNumberToInterface(C.CFNumberRef(ref)), nil
} else if typeID == C.CFBooleanGetTypeID() {
if C.CFBooleanGetValue(C.CFBooleanRef(ref)) != 0 {
return true, nil
}
return false, nil
}
return nil, fmt.Errorf("Invalid type: %s", CFTypeDescription(ref))
}
func getIntProp(device C.IOHIDDeviceRef, key C.CFStringRef) int32 {
var value int32
ref := C.IOHIDDeviceGetProperty(device, key)
if ref != nil {
if C.CFGetTypeID(ref) == C.CFNumberGetTypeID() {
C.CFNumberGetValue(C.CFNumberRef(ref), C.kCFNumberSInt32Type, unsafe.Pointer(&value))
return value
}
}
return 0
}
// we shouldn't ever get an error from this, but I'd rather not panic
func convertCFTypeToInterface(cfType cfTypeRef) (interface{}, error) {
typeId := C.CFGetTypeID(C.CFTypeRef(cfType))
switch typeId {
case C.CFStringGetTypeID():
return convertCFStringToString(C.CFStringRef(cfType)), nil
case C.CFNumberGetTypeID():
return convertCFNumberToInterface(C.CFNumberRef(cfType)), nil
case C.CFBooleanGetTypeID():
return convertCFBooleanToBool(C.CFBooleanRef(cfType)), nil
case C.CFDataGetTypeID():
return convertCFDataToBytes(C.CFDataRef(cfType)), nil
case C.CFDateGetTypeID():
return convertCFDateToTime(C.CFDateRef(cfType)), nil
case C.CFArrayGetTypeID():
ary, err := convertCFArrayToSlice(C.CFArrayRef(cfType))
return ary, err
case C.CFDictionaryGetTypeID():
dict, err := convertCFDictionaryToMap(C.CFDictionaryRef(cfType))
return dict, err
}
return nil, &UnknownCFTypeError{typeId}
}
return format, err
}
return format, state.err
}
type unmarshalState struct {
err error
}
var (
cfArrayTypeID = C.CFArrayGetTypeID()
cfBooleanTypeID = C.CFBooleanGetTypeID()
cfDataTypeID = C.CFDataGetTypeID()
cfDateTypeID = C.CFDateGetTypeID()
cfDictionaryTypeID = C.CFDictionaryGetTypeID()
cfNumberTypeID = C.CFNumberGetTypeID()
cfStringTypeID = C.CFStringGetTypeID()
)
var cfTypeMap = map[C.CFTypeID]reflect.Type{
cfArrayTypeID: reflect.TypeOf([]interface{}(nil)),
cfBooleanTypeID: reflect.TypeOf(false),
cfDataTypeID: reflect.TypeOf([]byte(nil)),
cfDateTypeID: reflect.TypeOf(time.Time{}),
cfDictionaryTypeID: reflect.TypeOf(map[string]interface{}(nil)),
cfStringTypeID: reflect.TypeOf(""),
}
var cfTypeNames = map[C.CFTypeID]string{
cfArrayTypeID: "CFArray",
cfBooleanTypeID: "CFBoolean",