Function emptyFuncOf

json/codec.go:898–954

(t reflect.Type)

}

func emptyFuncOf(t reflect.Type) emptyFunc {
	switch t {
	case bytesType, rawMessageType:
		return func(p unsafe.Pointer) bool { return (*slice)(p).len == 0 }
	}

	switch t.Kind() {
	case reflect.Array:
		if t.Len() == 0 {
			return func(unsafe.Pointer) bool { return true }
		}

	case reflect.Map:
		return func(p unsafe.Pointer) bool { return reflect.NewAt(t, p).Elem().Len() == 0 }

	case reflect.Slice:
		return func(p unsafe.Pointer) bool { return (*slice)(p).len == 0 }

	case reflect.String:
		return func(p unsafe.Pointer) bool { return len(*(*string)(p)) == 0 }

	case reflect.Bool:
		return func(p unsafe.Pointer) bool { return !*(*bool)(p) }

	case reflect.Int, reflect.Uint:
		return func(p unsafe.Pointer) bool { return *(*uint)(p) == 0 }

	case reflect.Uintptr:
		return func(p unsafe.Pointer) bool { return *(*uintptr)(p) == 0 }

	case reflect.Int8, reflect.Uint8:
		return func(p unsafe.Pointer) bool { return *(*uint8)(p) == 0 }

	case reflect.Int16, reflect.Uint16:
		return func(p unsafe.Pointer) bool { return *(*uint16)(p) == 0 }

	case reflect.Int32, reflect.Uint32:
		return func(p unsafe.Pointer) bool { return *(*uint32)(p) == 0 }

	case reflect.Int64, reflect.Uint64:
		return func(p unsafe.Pointer) bool { return *(*uint64)(p) == 0 }

	case reflect.Float32:
		return func(p unsafe.Pointer) bool { return *(*float32)(p) == 0 }

	case reflect.Float64:
		return func(p unsafe.Pointer) bool { return *(*float64)(p) == 0 }

	case reflect.Ptr:
		return func(p unsafe.Pointer) bool { return *(*unsafe.Pointer)(p) == nil }

	case reflect.Interface:
		return func(p unsafe.Pointer) bool { return (*iface)(p).ptr == nil }
	}

	return func(unsafe.Pointer) bool { return false }
}