别名带有参数的注释

Question

我正在尝试将我的 Android 库转换为 Kotlin 多平台库。

我想保留的一件事是 android Android Lint 的所有特定注释。我能够通过像

这样的简单操作来转换其中的大部分

@MustBeDocumented
@Retention(AnnotationRetention.BINARY)

@Target(
    AnnotationTarget.FUNCTION,
    AnnotationTarget.PROPERTY_GETTER,
    AnnotationTarget.PROPERTY_SETTER,
    AnnotationTarget.CONSTRUCTOR,
    AnnotationTarget.ANNOTATION_CLASS,
    AnnotationTarget.CLASS,
    AnnotationTarget.VALUE_PARAMETER
)
expect annotation class MainThread()

actual typealias MainThread = androidx.annotation.MainThread

这不适用于 RestrictTo，因为它需要一个参数。

android RestrictTo 注释看起来像

@Retention(CLASS)
@Target({ANNOTATION_TYPE,TYPE,METHOD,CONSTRUCTOR,FIELD,PACKAGE})
public @interface RestrictTo {

    /**
     * The scope to which usage should be restricted.
     */
    Scope[] value();

    enum Scope {
    }
}

我似乎无法让编译器对值的类型感到满意。

如果我让期望看起来像

@Target(
    AnnotationTarget.FUNCTION,
    AnnotationTarget.PROPERTY_GETTER,
    AnnotationTarget.PROPERTY_SETTER,
    AnnotationTarget.FIELD,
    AnnotationTarget.CONSTRUCTOR,
    AnnotationTarget.ANNOTATION_CLASS,
    AnnotationTarget.CLASS
)
@MustBeDocumented
@Retention(AnnotationRetention.BINARY)
expect annotation class RestrictTo(vararg val value: RestrictScope)

我遇到编译错误

public expect final val value: Array<out RestrictScope /* = RestrictTo.Scope */>

The following declaration is incompatible because return type is different:
    public final val value: Array<RestrictTo.Scope>

如果我将值从可变参数更改为数组，则会出现此错误。

public constructor RestrictTo(value: Array<RestrictScope /* = RestrictTo.Scope */>)

The following declaration is incompatible because parameter types are different:
    public constructor RestrictTo(vararg value: RestrictTo.Scope)

有没有办法让类型同时适用于构造函数和值方法？

Answer 1

这是一个错误 - https://youtrack.jetbrains.com/issue/KT-20900

随时给这个问题点赞。

别名带有参数的注释

Alias an Annotation that takes an argument

kotlin

kotlin-multiplatform