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/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
@file:Suppress("IMPLEMENTING_FUNCTION_INTERFACE")
package kotlin.reflect
/**
* Represents a property, such as a named `val` or `var` declaration.
* Instances of this class are obtainable by the `::` operator.
* See the [Kotlin language documentation](http://kotlinlang.org/docs/reference/reflection.html)
* for more information.
*
* @param R the type of the property.
*/
public interface KProperty : KCallable {
/**
* `true` if this property is `lateinit`.
* See the [Kotlin language documentation](https://kotlinlang.org/docs/reference/properties.html#late-initialized-properties)
* for more information.
*/
@SinceKotlin("1.1")
public val isLateinit: Boolean
/**
* `true` if this property is `const`.
* See the [Kotlin language documentation](https://kotlinlang.org/docs/reference/properties.html#compile-time-constants)
* for more information.
*/
@SinceKotlin("1.1")
public val isConst: Boolean
/** The getter of this property, used to obtain the value of the property. */
public val getter: Getter
/**
* Represents a property accessor, which is a `get` or `set` method declared alongside the property.
* See the [Kotlin language documentation](http://kotlinlang.org/docs/reference/properties.html#getters-and-setters)
* for more information.
*
* @param R the type of the property, which it is an accessor of.
*/
public interface Accessor {
/** The property which this accessor is originated from. */
public val property: KProperty
}
/**
* Getter of the property is a `get` method declared alongside the property.
*/
public interface Getter : Accessor, KFunction
}
/**
* Represents a property declared as a `var`.
*/
public interface KMutableProperty : KProperty {
/** The setter of this mutable property, used to change the value of the property. */
public val setter: Setter
/**
* Setter of the property is a `set` method declared alongside the property.
*/
public interface Setter : KProperty.Accessor, KFunction
}
/**
* Represents a property without any kind of receiver.
* Such property is either originally declared in a receiverless context such as a package,
* or has the receiver bound to it.
*/
public interface KProperty0 : KProperty, () -> R {
/**
* Returns the current value of the property.
*/
public fun get(): R
/**
* Returns the value of the delegate if this is a delegated property, or `null` if this property is not delegated.
* See the [Kotlin language documentation](https://kotlinlang.org/docs/reference/delegated-properties.html)
* for more information.
*/
@SinceKotlin("1.1")
public fun getDelegate(): Any?
override val getter: Getter
public interface Getter : KProperty.Getter, () -> R
}
/**
* Represents a `var`-property without any kind of receiver.
*/
public interface KMutableProperty0 : KProperty0, KMutableProperty {
/**
* Modifies the value of the property.
*
* @param value the new value to be assigned to this property.
*/
public fun set(value: R)
override val setter: Setter
public interface Setter : KMutableProperty.Setter, (R) -> Unit
}
/**
* Represents a property, operations on which take one receiver as a parameter.
*
* @param T the type of the receiver which should be used to obtain the value of the property.
* @param R the type of the property.
*/
public interface KProperty1 : KProperty, (T) -> R {
/**
* Returns the current value of the property.
*
* @param receiver the receiver which is used to obtain the value of the property.
* For example, it should be a class instance if this is a member property of that class,
* or an extension receiver if this is a top level extension property.
*/
public fun get(receiver: T): R
/**
* Returns the value of the delegate if this is a delegated property, or `null` if this property is not delegated.
* See the [Kotlin language documentation](https://kotlinlang.org/docs/reference/delegated-properties.html)
* for more information.
*
* Note that for a top level **extension** property, the delegate is the same for all extension receivers,
* so the actual [receiver] instance passed in is not going to make any difference, it must only be a value of [T].
*
* @param receiver the receiver which is used to obtain the value of the property delegate.
* For example, it should be a class instance if this is a member property of that class,
* or an extension receiver if this is a top level extension property.
*
* @see [KProperty1.getExtensionDelegate]
*/
@SinceKotlin("1.1")
public fun getDelegate(receiver: T): Any?
override val getter: Getter
public interface Getter : KProperty.Getter, (T) -> R
}
/**
* Represents a `var`-property, operations on which take one receiver as a parameter.
*/
public interface KMutableProperty1 : KProperty1, KMutableProperty {
/**
* Modifies the value of the property.
*
* @param receiver the receiver which is used to modify the value of the property.
* For example, it should be a class instance if this is a member property of that class,
* or an extension receiver if this is a top level extension property.
* @param value the new value to be assigned to this property.
*/
public fun set(receiver: T, value: R)
override val setter: Setter
public interface Setter : KMutableProperty.Setter, (T, R) -> Unit
}
/**
* Represents a property, operations on which take two receivers as parameters,
* such as an extension property declared in a class.
*
* @param D the type of the first receiver. In case of the extension property in a class this is
* the type of the declaring class of the property, or any subclass of that class.
* @param E the type of the second receiver. In case of the extension property in a class this is
* the type of the extension receiver.
* @param R the type of the property.
*/
public interface KProperty2 : KProperty, (D, E) -> R {
/**
* Returns the current value of the property. In case of the extension property in a class,
* the instance of the class should be passed first and the instance of the extension receiver second.
*
* @param receiver1 the instance of the first receiver.
* @param receiver2 the instance of the second receiver.
*/
public fun get(receiver1: D, receiver2: E): R
/**
* Returns the value of the delegate if this is a delegated property, or `null` if this property is not delegated.
* See the [Kotlin language documentation](https://kotlinlang.org/docs/reference/delegated-properties.html)
* for more information.
*
* In case of the extension property in a class, the instance of the class should be passed first
* and the instance of the extension receiver second.
*
* @param receiver1 the instance of the first receiver.
* @param receiver2 the instance of the second receiver.
*
* @see [KProperty2.getExtensionDelegate]
*/
@SinceKotlin("1.1")
public fun getDelegate(receiver1: D, receiver2: E): Any?
override val getter: Getter
public interface Getter : KProperty.Getter, (D, E) -> R
}
/**
* Represents a `var`-property, operations on which take two receivers as parameters.
*/
public interface KMutableProperty2 : KProperty2, KMutableProperty {
/**
* Modifies the value of the property.
*
* @param receiver1 the instance of the first receiver.
* @param receiver2 the instance of the second receiver.
* @param value the new value to be assigned to this property.
*/
public fun set(receiver1: D, receiver2: E, value: R)
override val setter: Setter
public interface Setter : KMutableProperty.Setter, (D, E, R) -> Unit
}
