func getVariablePtrValue(sectionValue reflect.Value, section, varName string) (reflect.Value, error) {
// Get a reference to the name-value-pair within the section
nvPairValue := sectionValue.FieldByNameFunc(func(fieldName string) bool {
return (strings.ToLower(fieldName) == varName)
})
if !nvPairValue.IsValid() {
return reflect.Value{}, NewParseError("Unknown variable name " + varName +
" in section " + section)
}
if nvPairValue.Kind() == reflect.Ptr {
// The name-value-pair is a pointer. So we first need to make sure the object is allocated.
if !nvPairValue.Elem().IsValid() {
// The object is not yet allocated, so we allocate it now.
newObj := reflect.New(nvPairValue.Type().Elem())
nvPairValue.Set(newObj)
}
// Return the pointer to the newly created object
return nvPairValue, nil
} else {
// The object is already allocated, so we can just return the pointer to this object.
return nvPairValue.Addr(), nil
}
}
func (obj *HitsIMP) Next(hit interface{}) bool {
self := ((*C.lucy_Hits)(unsafe.Pointer(obj.TOPTR())))
// TODO: accept a HitDoc object and populate score.
// Get reflection value and type for the supplied struct.
var hitValue reflect.Value
if reflect.ValueOf(hit).Kind() == reflect.Ptr {
temp := reflect.ValueOf(hit).Elem()
if temp.Kind() == reflect.Struct {
if temp.CanSet() {
hitValue = temp
}
}
}
if hitValue == (reflect.Value{}) {
mess := fmt.Sprintf("Arg not writeable struct pointer: %v",
reflect.TypeOf(hit))
obj.err = clownfish.NewErr(mess)
return false
}
var docC *C.lucy_HitDoc
errCallingNext := clownfish.TrapErr(func() {
docC = C.LUCY_Hits_Next(self)
})
if errCallingNext != nil {
obj.err = errCallingNext
return false
}
if docC == nil {
return false
}
defer C.cfish_dec_refcount(unsafe.Pointer(docC))
fields := (*C.cfish_Hash)(unsafe.Pointer(C.LUCY_HitDoc_Get_Fields(docC)))
iterator := C.cfish_HashIter_new(fields)
defer C.cfish_dec_refcount(unsafe.Pointer(iterator))
for C.CFISH_HashIter_Next(iterator) {
keyC := C.CFISH_HashIter_Get_Key(iterator)
valC := C.CFISH_HashIter_Get_Value(iterator)
key := clownfish.CFStringToGo(unsafe.Pointer(keyC))
val := clownfish.CFStringToGo(unsafe.Pointer(valC))
match := func(name string) bool {
return strings.EqualFold(key, name)
}
structField := hitValue.FieldByNameFunc(match)
if structField != (reflect.Value{}) {
structField.SetString(val)
}
}
return true
}
func buildValues(columns []string, values []interface{}, data []interface{}, dummy interface{}) bool {
n := len(data)
var v reflect.Value
var instruct bool
if n == 1 {
v = reflect.Indirect(reflect.ValueOf(data[0]))
instruct = v.Kind() == reflect.Struct
}
if instruct {
for i, cname := range columns {
f := v.FieldByNameFunc(func(s string) bool {
return strings.ToLower(s) == strings.ToLower(cname)
})
if f.IsValid() && f.CanSet() {
values[i] = f.Addr().Interface()
} else {
values[i] = dummy
}
}
return true
}
if true {
for i := range values {
if i < n {
values[i] = data[i]
} else {
values[i] = dummy
}
}
return true
}
return false
}
func getSectionValue(configValue reflect.Value, section string) (reflect.Value, error) {
// Get a reference to the current section struct
sectionValue := configValue.FieldByNameFunc(func(name string) bool {
return (strings.ToLower(name) == section)
})
if !sectionValue.IsValid() {
return reflect.Value{}, NewParseError("Unknown section: " + section)
}
if sectionValue.Kind() == reflect.Ptr {
// The section value is a pointer. So we first need to make sure the object is allocated.
if !sectionValue.Elem().IsValid() {
// The object is not yet allocated, so we allocate it now.
newObj := reflect.New(sectionValue.Type().Elem())
sectionValue.Set(newObj)
}
// sectionValue is now pointer to the actual object. We use Elem() to get the object to
// which it points.
sectionValue = sectionValue.Elem()
}
return sectionValue, nil
}
func fieldFold(v reflect.Value, name string) reflect.Value {
n := strings.Replace(name, "-", "_", -1)
return v.FieldByNameFunc(func(fieldName string) bool {
return strings.EqualFold(n, fieldName)
})
}
