Questions tagged [kotlin-inline-class]
From version 1.3+, Kotlin introduces a special kind of class called an inline class, which is declared by placing an 'inline' modifier before the name of the class. They provide a way to wrap a type, thus adding functionality and creating a new type by itself. As opposed to regular wrappers, they will benefit from improved performance. This happens because the data is inlined into its usages, and object instantiation is skipped in the compiled code.
kotlin-inline-class
21
questions
1
vote
1
answer
67
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Kotlin interoperability issue with implementing interfaces
I'm working on migrating a web project from Java to Kotlin. During this process I'm faced with compilation issue that can make problems in the future, especially where the existing projects have to ...
- 63
0
votes
1
answer
39
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I am not sure how to optimize retrofit with callback in kotlin, or how to remove the callback after its done
I am using callbacks in Kotlin, and I currently have the exact retrofit function returning result in the form of a callback as its used multiple times across different classes,the endpoints are ...
1
vote
1
answer
269
views
How to use kotlin value class from java code?
I have kotlin value class:
@JvmInline
value class MyValueClass internal constructor(val rawValue: String) {
companion object {
@JvmName("myTestValueClass")
fun String....
- 1,318
1
vote
1
answer
98
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Kotlin. How to store property in value class?
I'm trying to create value class for storing money. And I need to store private money format. Here is my code:
@JvmInline
value class Money internal constructor(val rawValue: String) {
private ...
- 1,318
2
votes
1
answer
145
views
Force inlining of Kotlin inline-class?
@LukasEder, this question is more Kotlin related, you can probably skip it in favour of the more jOOQ-related continuation in https://github.com/jOOQ/jOOQ/issues/14972 :)
So part of a legacy database ...
- 8,042
1
vote
1
answer
103
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What is the best use case to understand crossinline
I wanted to understand what is actual use case when we would want to add crossinline keyword to a lambda
I have following code where I added crossinline. I understand that crossinline will force any ...
- 95
1
vote
1
answer
481
views
Kotlin working with value classes in libraries such as hibernate / jackson
Is there a way to get kotlin value classes (updated inline classes) to work with libraries such as Jackson and Hibernate and have them treat the value class simply as the underlying type?
Currently I ...
- 31
1
vote
2
answers
2k
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Cannot use 'T' as reified type parameter even I declared that T should be any class inherited by Parcelable
Since I am not yet good in generics I would like to ask:
Question: why I cannot inform the function getResult that the return value from bundle.getParcelableCompat<T>(BUNDLE_KEY) would be type ...
- 12.2k
1
vote
1
answer
193
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Kotlin: inline function and shared type
I want to call multiple API calls at once using coroutines. So far I used coroutines only to call single API call which returned result in form off success or error. Its using inline function. But I ...
- 2,758
0
votes
0
answers
369
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Is it possible to disable inlining of value classes in Kotlin?
Goal
I would like to globally disable inlining of @JvmInline value class classes via a compiler flag or something similar. I would want to do this when running unit tests but not in production.
...
- 654
4
votes
2
answers
2k
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Parcelize value (inline) class in Kotlin
At first glance it seems to be okay to decorate a kotlin value (inline) class like that:
@JvmInline
@Parcelize
value class TestClass(val value: Long) : Parcelable
But the build fails reporting:
...
- 53
1
vote
0
answers
661
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Value classes in generics - interoperability with Java/Groovy
I’m struggling with value classes in generics and interoperability with Java or Groovy. Value class are inlined: Inline classes | Kotlin 1 except for generics.
Given following value class and ...
8
votes
1
answer
2k
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Unresolved reference: JvmInline In kotlin playground
This is an exact code snippet of value classes taken from kotlin official website.
interface I
@JvmInline
value class Foo(val i: Int) : I
fun asInline(f: Foo) {}
fun <T> asGeneric(x: T) {}
fun ...
- 3,090
0
votes
1
answer
490
views
Memory leak: Anonymous class implementing io.reactivex.Observer
I am working on an Android project. Some of my Activities are extending SiteFinderActivity. This class is responsible to validate the current session and pass it down to its children via a few ...
- 53.2k
4
votes
2
answers
1k
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Store Kotlin inline class to MongoDB with Spring Data
I'm trying to store a Kotlin's (v1.3.61) inline class to a MongoDB using Spring Data MongoDB (2.2.3-RELEASE), with no luck so far. This is the set up:
inline class UserId(@NotBlank val id: String)
...
- 6,360