Update actions signatures to avoid unnecessary nulls
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b7be570271
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@ -25,9 +25,9 @@ private suspend fun <D : Device, T> DevicePropertySpec<D, T>.readMeta(device: D)
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private suspend fun <D : Device, I, O> DeviceActionSpec<D, I, O>.executeWithMeta(
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device: D,
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item: Meta?,
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item: Meta,
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): Meta? {
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val arg = item?.let { inputConverter.metaToObject(item) }
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val arg: I = inputConverter.metaToObject(item) ?: error("Failed to convert $item with $inputConverter")
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val res = execute(device, arg)
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return res?.let { outputConverter.objectToMeta(res) }
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}
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@ -146,7 +146,7 @@ public abstract class DeviceBase<D : Device>(
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override suspend fun execute(actionName: String, argument: Meta?): Meta? {
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val spec = actions[actionName] ?: error("Action with name $actionName not found")
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return spec.executeWithMeta(self, argument)
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return spec.executeWithMeta(self, argument ?: Meta.EMPTY)
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}
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}
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@ -66,7 +66,7 @@ public interface DeviceActionSpec<in D : Device, I, O> {
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/**
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* Execute action on a device
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*/
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public suspend fun execute(device: D, input: I?): O?
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public suspend fun execute(device: D, input: I): O
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}
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/**
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@ -137,5 +137,8 @@ public suspend fun <D : Device> D.invalidate(propertySpec: DevicePropertySpec<D,
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/**
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* Execute the action with name according to [actionSpec]
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*/
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public suspend fun <I, O, D : Device> D.execute(actionSpec: DeviceActionSpec<D, I, O>, input: I? = null): O? =
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public suspend fun <I, O, D : Device> D.execute(actionSpec: DeviceActionSpec<D, I, O>, input: I): O =
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actionSpec.execute(this, input)
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public suspend fun <O, D : Device> D.execute(actionSpec: DeviceActionSpec<D, Unit, O>): O =
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actionSpec.execute(this, Unit)
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@ -12,6 +12,13 @@ import kotlin.reflect.KMutableProperty1
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import kotlin.reflect.KProperty
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import kotlin.reflect.KProperty1
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public object UnitMetaConverter: MetaConverter<Unit>{
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override fun metaToObject(meta: Meta): Unit = Unit
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override fun objectToMeta(obj: Unit): Meta = Meta.EMPTY
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}
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public val MetaConverter.Companion.unit: MetaConverter<Unit> get() = UnitMetaConverter
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@OptIn(InternalDeviceAPI::class)
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public abstract class DeviceSpec<D : Device> {
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@ -165,7 +172,7 @@ public abstract class DeviceSpec<D : Device> {
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outputConverter: MetaConverter<O>,
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descriptorBuilder: ActionDescriptor.() -> Unit = {},
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name: String? = null,
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execute: suspend D.(I?) -> O?,
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execute: suspend D.(I) -> O,
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): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, I, O>>> =
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PropertyDelegateProvider { _: DeviceSpec<D>, property ->
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val actionName = name ?: property.name
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@ -175,7 +182,7 @@ public abstract class DeviceSpec<D : Device> {
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override val inputConverter: MetaConverter<I> = inputConverter
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override val outputConverter: MetaConverter<O> = outputConverter
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override suspend fun execute(device: D, input: I?): O? = withContext(device.coroutineContext) {
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override suspend fun execute(device: D, input: I): O = withContext(device.coroutineContext) {
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device.execute(input)
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}
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}
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@ -191,7 +198,7 @@ public abstract class DeviceSpec<D : Device> {
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public fun metaAction(
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descriptorBuilder: ActionDescriptor.() -> Unit = {},
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name: String? = null,
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execute: suspend D.(Meta?) -> Meta?,
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execute: suspend D.(Meta) -> Meta,
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): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, Meta, Meta>>> =
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action(
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MetaConverter.Companion.meta,
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@ -209,15 +216,14 @@ public abstract class DeviceSpec<D : Device> {
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descriptorBuilder: ActionDescriptor.() -> Unit = {},
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name: String? = null,
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execute: suspend D.() -> Unit,
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): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, Meta, Meta>>> =
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): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, Unit, Unit>>> =
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action(
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MetaConverter.Companion.meta,
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MetaConverter.Companion.meta,
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MetaConverter.Companion.unit,
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MetaConverter.Companion.unit,
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descriptorBuilder,
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name
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) {
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execute()
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null
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}
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}
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@ -68,11 +68,10 @@ class DemoDevice(context: Context, meta: Meta) : DeviceBySpec<IDemoDevice>(Compa
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}
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val resetScale by action(MetaConverter.meta, MetaConverter.meta) {
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val resetScale by unitAction {
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write(timeScale, 5000.0)
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write(sinScale, 1.0)
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write(cosScale, 1.0)
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null
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}
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override suspend fun IDemoDevice.onOpen() {
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