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use coremidi_sys::{MIDIObjectRef, MIDIObjectType};
use crate::{Destination, Device, Entity, Object, Source};
#[derive(Debug, PartialEq)]
pub enum AnyObject {
Other(Object),
Device(Device),
Entity(Entity),
Source(Source),
Destination(Destination),
ExternalDevice(Device),
ExternalEntity(Entity),
ExternalSource(Source),
ExternalDestination(Destination),
}
impl AnyObject {
pub(crate) fn create(object_type: MIDIObjectType, object_ref: MIDIObjectRef) -> Option<Self> {
match object_type {
coremidi_sys::kMIDIObjectType_Other => Some(Self::Other(Object(object_ref))),
coremidi_sys::kMIDIObjectType_Device => Some(Self::Device(Device::new(object_ref))),
coremidi_sys::kMIDIObjectType_Entity => Some(Self::Entity(Entity::new(object_ref))),
coremidi_sys::kMIDIObjectType_Source => Some(Self::Source(Source::new(object_ref))),
coremidi_sys::kMIDIObjectType_Destination => {
Some(Self::Destination(Destination::new(object_ref)))
}
coremidi_sys::kMIDIObjectType_ExternalDevice => {
Some(Self::ExternalDevice(Device::new(object_ref)))
}
coremidi_sys::kMIDIObjectType_ExternalEntity => {
Some(Self::ExternalEntity(Entity::new(object_ref)))
}
coremidi_sys::kMIDIObjectType_ExternalSource => {
Some(Self::ExternalSource(Source::new(object_ref)))
}
coremidi_sys::kMIDIObjectType_ExternalDestination => {
Some(Self::ExternalDestination(Destination::new(object_ref)))
}
_ => None,
}
}
}
impl AsRef<Object> for AnyObject {
fn as_ref(&self) -> &Object {
match self {
Self::Other(object) => object,
Self::Device(device) => &device.object,
Self::Entity(entity) => &entity.object,
Self::Source(source) => &source.object,
Self::Destination(destination) => &destination.object,
Self::ExternalDevice(device) => &device.object,
Self::ExternalEntity(entity) => &entity.object,
Self::ExternalSource(source) => &source.object,
Self::ExternalDestination(destination) => &destination.object,
}
}
}
#[cfg(test)]
mod tests {
use crate::any_object::AnyObject;
use crate::{Destination, Device, Entity, Object, Source};
#[test]
fn any_object_create() {
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_Other, 1),
Some(AnyObject::Other(Object(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_Device, 1),
Some(AnyObject::Device(Device::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_Entity, 1),
Some(AnyObject::Entity(Entity::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_Source, 1),
Some(AnyObject::Source(Source::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_Destination, 1),
Some(AnyObject::Destination(Destination::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_ExternalDevice, 1),
Some(AnyObject::ExternalDevice(Device::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_ExternalEntity, 1),
Some(AnyObject::ExternalEntity(Entity::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_ExternalSource, 1),
Some(AnyObject::ExternalSource(Source::new(1)))
);
assert_eq!(
AnyObject::create(coremidi_sys::kMIDIObjectType_ExternalDestination, 1),
Some(AnyObject::ExternalDestination(Destination::new(1)))
);
}
#[test]
fn any_object_as_ref() {
let expected_object = Object(1);
assert_eq!(AnyObject::Other(Object(1)).as_ref(), &expected_object);
assert_eq!(AnyObject::Device(Device::new(1)).as_ref(), &expected_object);
assert_eq!(AnyObject::Entity(Entity::new(1)).as_ref(), &expected_object);
assert_eq!(AnyObject::Source(Source::new(1)).as_ref(), &expected_object);
assert_eq!(
AnyObject::Destination(Destination::new(1)).as_ref(),
&expected_object
);
assert_eq!(
AnyObject::ExternalDevice(Device::new(1)).as_ref(),
&expected_object
);
assert_eq!(
AnyObject::ExternalEntity(Entity::new(1)).as_ref(),
&expected_object
);
assert_eq!(
AnyObject::ExternalSource(Source::new(1)).as_ref(),
&expected_object
);
assert_eq!(
AnyObject::ExternalDestination(Destination::new(1)).as_ref(),
&expected_object
);
}
#[test]
fn any_object_from_error() {
assert_eq!(AnyObject::create(0xffff_i32, 1), None);
}
}