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Minor delegates optimization

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This commit is contained in:
Alexander Nozik 2019-05-18 11:12:41 +03:00
parent fdd5b11370
commit f1692297b8
3 changed files with 29 additions and 52 deletions
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32
dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ConfigDelegates.kt
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@ -10,25 +10,19 @@ import kotlin.jvm.JvmName
/** /**
* A property delegate that uses custom key * A property delegate that uses custom key
*/ */
fun Configurable.value(default: Any = Null, key: String? = null) = fun Configurable.value(default: Any = Null, key: String? = null): MutableValueDelegate<Config> =
MutableValueDelegate(config, key, Value.of(default)) MutableValueDelegate(config, key, Value.of(default))
fun <T> Configurable.value(default: T? = null, key: String? = null, transform: (Value?) -> T) = fun <T> Configurable.value(default: T? = null, key: String? = null, transform: (Value?) -> T): ReadWriteDelegateWrapper<Value?, T> =
MutableValueDelegate(config, key, Value.of(default)).transform(reader = transform) MutableValueDelegate(config, key, Value.of(default)).transform(reader = transform)
fun Configurable.stringList(key: String? = null) = fun Configurable.string(default: String? = null, key: String? = null): MutableStringDelegate<Config> =
value(key) { it?.list?.map { value -> value.string } ?: emptyList() }
fun Configurable.numberList(key: String? = null) =
value(key) { it?.list?.map { value -> value.number } ?: emptyList() }
fun Configurable.string(default: String? = null, key: String? = null) =
MutableStringDelegate(config, key, default) MutableStringDelegate(config, key, default)
fun Configurable.boolean(default: Boolean? = null, key: String? = null) = fun Configurable.boolean(default: Boolean? = null, key: String? = null): MutableBooleanDelegate<Config> =
MutableBooleanDelegate(config, key, default) MutableBooleanDelegate(config, key, default)
fun Configurable.number(default: Number? = null, key: String? = null) = fun Configurable.number(default: Number? = null, key: String? = null): MutableNumberDelegate<Config> =
MutableNumberDelegate(config, key, default) MutableNumberDelegate(config, key, default)
/* Number delegates*/ /* Number delegates*/
@ -111,3 +105,19 @@ fun <T : Specific> Configurable.spec(spec: Specification<T>, key: String? = null
fun <T : Specific> Configurable.spec(builder: (Config) -> T, key: String? = null) = fun <T : Specific> Configurable.spec(builder: (Config) -> T, key: String? = null) =
MutableMorphDelegate(config, key) { specification(builder).wrap(it) } MutableMorphDelegate(config, key) { specification(builder).wrap(it) }
/*
* Extra delegates for special cases
*/
fun Configurable.stringList(key: String? = null): ReadWriteDelegateWrapper<Value?, List<String>> =
value(emptyList(), key) { it?.list?.map { value -> value.string } ?: emptyList() }
fun Configurable.numberList(key: String? = null): ReadWriteDelegateWrapper<Value?, List<Number>> =
value(emptyList(), key) { it?.list?.map { value -> value.number } ?: emptyList() }
fun <T : Metoid> Metoid.child(key: String? = null, converter: (Meta) -> T) = ChildDelegate(meta, key, converter)
fun <T : Configurable> Configurable.child(key: String? = null, converter: (Meta) -> T) =
MutableMorphDelegate(config, key, converter)

36
dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ExtraMetaDelegates.kt
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@ -1,36 +0,0 @@
package hep.dataforge.meta
import kotlin.properties.ReadWriteProperty
import kotlin.reflect.KProperty
/*
* Extra delegates for special cases
*/
/**
* A delegate for a string list
*/
class StringListConfigDelegate(
val config: Config,
private val key: String? = null,
private val default: List<String> = emptyList()
) :
ReadWriteProperty<Any?, List<String>> {
override fun getValue(thisRef: Any?, property: KProperty<*>): List<String> {
return config[key ?: property.name]?.value?.list?.map { it.string } ?: default
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: List<String>) {
val name = key ?: property.name
config[name] = value
}
}
fun Configurable.stringList(vararg default: String = emptyArray(), key: String? = null) =
StringListConfigDelegate(config, key, default.toList())
fun <T : Metoid> Metoid.child(key: String? = null, converter: (Meta) -> T) = ChildDelegate(meta, key, converter)
fun <T : Configurable> Configurable.child(key: String? = null, converter: (Meta) -> T) =
MutableMorphDelegate(config, key, converter)

13
dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Specific.kt
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@ -1,11 +1,13 @@
package hep.dataforge.meta package hep.dataforge.meta
/** /**
* Marker interface for specifications * Marker interface for classes with specifications
*/ */
interface Specific : Configurable { interface Specific : Configurable
operator fun get(name: String): MetaItem<Config>? = config[name]
} //TODO separate mutable config from immutable meta to allow free wrapping of meta
operator fun Specific.get(name: String): MetaItem<*>? = config[name]
/** /**
* Allows to apply custom configuration in a type safe way to simple untyped configuration. * Allows to apply custom configuration in a type safe way to simple untyped configuration.
@ -29,6 +31,7 @@ interface Specification<T : Specific> {
*/ */
fun wrap(config: Config): T fun wrap(config: Config): T
//TODO replace by free wrapper
fun wrap(meta: Meta): T = wrap(meta.toConfig()) fun wrap(meta: Meta): T = wrap(meta.toConfig())
} }
@ -59,4 +62,4 @@ fun <C : Specific, S : Specification<C>> S.createStyle(action: C.() -> Unit): Me
fun <C : Specific> Specific.spec( fun <C : Specific> Specific.spec(
spec: Specification<C>, spec: Specification<C>,
key: String? = null key: String? = null
) = MutableMorphDelegate(config, key) { spec.wrap(it) } ): MutableMorphDelegate<Config, C> = MutableMorphDelegate(config, key) { spec.wrap(it) }