blob: 6c0eb9a473410fca37eac8d510c4365f37be0de6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
package me.bush.illnamethislater
import java.lang.reflect.Modifier
import java.util.concurrent.atomic.AtomicInteger
import java.util.concurrent.atomic.AtomicLong
import kotlin.reflect.KCallable
import kotlin.reflect.KClass
import kotlin.reflect.KProperty
import kotlin.reflect.full.allSuperclasses
import kotlin.reflect.full.declaredMembers
import kotlin.reflect.full.starProjectedType
import kotlin.reflect.jvm.javaField
import kotlin.reflect.jvm.javaGetter
// @author bush
// @since 3/13/2022
/**
* Using [KClass.members] only returns public members, and
* using [KClass.declaredMembers] doesn't return inherited
* members. This returns all members, private and inherited.
*/
internal val <T : Any> KClass<T>.allMembers
get() = declaredMembers + allSuperclasses.flatMap { it.declaredMembers }
/**
* Checks if a [KCallable] is static on the jvm, and handles invocation accordingly.
*
* I am not aware of a better alternative that works with `object` classes.
*/
internal fun <R> KCallable<R>.handleCall(receiver: Any) = if (static) call() else call(receiver)
/**
* Checks if the calling [KCallable] is a static java field.
*
* Because kotlin likes to be funny, properties belonging to
* `object` classes are static, but their getters are not.
*
* If there is a getter (the property is not private),
* we will be accessing it through that, so we can stop checking.
*
* Otherwise, we check if the field is static with java reflection.
*/
internal val KCallable<*>.static
get() = if (this !is KProperty<*> || javaGetter != null) false
else javaField?.let { Modifier.isStatic(it.modifiers) } ?: false
@Suppress("UNCHECKED_CAST") // This cannot fail
internal inline fun <reified T : Any> List<KCallable<*>>.filterReturnType() =
filter { it.returnType == T::class.starProjectedType } as List<KCallable<T>>
/**
* A simple class returned as a "key" for listeners that are not
* members of a class, just to make its intentions clearer. This
* can be used in [EventBus.unsubscribe] to remove the listener.
*/
internal class ListenerKey
|
