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Config list delegates

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This commit is contained in:
Alexander Nozik 2019-04-30 21:39:21 +03:00
parent 3cf62bb6b2
commit 459e570437
3 changed files with 15 additions and 5 deletions
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2
dataforge-meta/src/commonMain/kotlin/hep/dataforge/descriptors/NodeDescriptor.kt
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@ -75,7 +75,7 @@ class NodeDescriptor(override val config: Config) : Specific {
*
* @return
*/
var tags: List<String> by value().map { value ->
var tags: List<String> by value{ value ->
value?.list?.map { it.string } ?: emptyList()
}

14
dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ConfigDelegates.kt
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@ -1,6 +1,5 @@
package hep.dataforge.meta
import hep.dataforge.values.Null
import hep.dataforge.values.Value
import kotlin.jvm.JvmName
@ -10,9 +9,18 @@ import kotlin.jvm.JvmName
/**
* A property delegate that uses custom key
*/
fun Configurable.value(default: Any = Null, key: String? = null) =
fun <T> Configurable.value(default: T, key: String? = null) =
MutableValueDelegate(config, key, Value.of(default))
fun <T> Configurable.value(default: T? = null, key: String? = null, transform: (Value?) -> T) =
MutableValueDelegate(config, key, Value.of(default)).transform(reader = transform)
fun Configurable.stringList(key: String? = null) =
value { it?.list?.map { value -> value.string } ?: emptyList() }
fun Configurable.numberList(key: String? = null) =
value { it?.list?.map { value -> value.number } ?: emptyList() }
fun Configurable.string(default: String? = null, key: String? = null) =
MutableStringDelegate(config, key, default)
@ -93,6 +101,8 @@ fun Configurable.float(default: Float, key: String? = null) =
inline fun <reified E : Enum<E>> Configurable.enum(default: E, key: String? = null) =
MutableSafeEnumvDelegate(config, key, default) { enumValueOf(it) }
/* Node delegates */
fun Configurable.node(key: String? = null) = MutableNodeDelegate(config, key)
fun <T : Specific> Configurable.spec(spec: Specification<T>, key: String? = null) =

2
dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Delegates.kt
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@ -184,7 +184,7 @@ class MutableValueDelegate<M : MutableMeta<M>>(
}
}
fun <T> map(writer: (T) -> Value? = { Value.of(it) }, reader: (Value?) -> T) =
fun <T> transform(writer: (T) -> Value? = { Value.of(it) }, reader: (Value?) -> T) =
ReadWriteDelegateWrapper(this, reader, writer)
}