Enum ObjectClass 

pub enum ObjectClass {
    Piano,
    Sample,
    Program,
    SetList,
    Live,
    Settings,
    Unknown(u32),
}

What kind of object a session is about.

SESSION_OPEN carries one of these, and cmd::STATUS then reports on that class alone. Confirmed on hardware. The class code is the device’s partition index, and the partition table names each one. An unrecognized numeric class is preserved.

The gaps at 0 and 2 are the Piano (Native) and Samp Lib (Native) partitions — a second view of the same objects in storage order rather than by category. Both are readable and neither is modelled here.

Variants

Piano

Sample

Program

SetList

Live

The three Live slots. Wire-addressed 0:0..0:2; bodies are ne5p-shaped.

Settings

The global settings singleton, wire-addressed 0:0. Reports no body checksum (0xffffffff), like the library classes.

Unknown(u32)

Implementations

impl ObjectClass

pub const INVENTORY: [ObjectClass; 4]

The classes worth querying for an inventory. Live and Settings also answer, but report zero items — they are singletons, not slot-counted storage.

pub fn from_raw(v: u32) -> Self

pub fn to_raw(self) -> u32

pub fn label(self) -> String

pub fn storage(self) -> Option<Slot>

The storage class nord_format’s acceptance table names this one by — the four libraries and the two singletons, without the wire. None for a code this crate does not name, which no table row can be about.

pub fn is_library(self) -> bool

Whether this class is one of the content libraries, whose objects vary in size and whose Status counters are storage blocks rather than bytes.

pub fn overwrites_in_place(self) -> bool

Whether a write into an occupied slot of this class lands without deleting it first.

Confirmed on hardware.

Live and Settings accept the ordinary BEGIN_WRITE → WRITE_DATA → END_TRANSFER sequence at their occupied slots and the body reads back as what was sent, where every other class answers status 0x4 until the slot is empty. Their delete has never been attempted, so composing a write out of delete-then-write there is both unnecessary and untested.

pub fn names_its_slots(self) -> bool

Whether the device stores a name for the objects of this class.

Confirmed on hardware.

Live and Settings hold fixed names (Live 1, Settings) — they answer 0x1c rename with success and change nothing, and they carry BEGIN_WRITE’s name argument and discard it. Partition record word 3, the slot-family name length, is 0 for both.

Trait Implementations

impl Clone for ObjectClass

fn clone(&self) -> ObjectClass

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ObjectClass

impl Debug for ObjectClass

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ObjectClass

impl From<Library> for ObjectClass

The four library classes are the libraries a decoded body can refer into, and their codes are Library::code’s — one table for a caller holding both.

fn from(library: Library) -> Self

Converts to this type from the input type.

impl PartialEq for ObjectClass

fn eq(&self, other: &ObjectClass) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ObjectClass