when must be exhaustive kotlin ?

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https://proandroiddev.com › til-when-is-when-exhaustive-31d69f630a8b

https://proandroiddev.com › til-when-is-when-exhaustive-31d69f630a8b
TIL: when is when exhaustive?. Kotlin’s when works similarly to Java …
TIL: when is when exhaustive? Kotlin’s when works similarly to Java’s switch . Once upon a time, I heard that when forces you to specify all the branches (when all the branches can be known by the compiler, with enums or sealed-classes), but I didn’t find this to be the case.
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https://www.geeksforgeeks.org › kotlin-when-expression

https://www.geeksforgeeks.org › kotlin-when-expression
Kotlin when expression – GeeksforGeeks
Error:(6, 17) Kotlin: ‘when’ expression must be exhaustive, add necessary ‘else’ branch Different ways to use when the block in Kotlin. Combine multiple branches in one using comma: We can use multiple branches in a single one separated by a comma. When common logic is shared by some branches then we can combine them in a single branch. In the example below, we need to check the entered large body is a planet or not, so we combined all the names of planets in a single branch …

https://stackoverflow.com › questions › 52812997 › when-expression-must-be-exhaustive-error-when-using-adapters

https://stackoverflow.com › questions › 52812997 › when-expression-must-be-exhaustive-error-when-using-adapters
‘when’ expression must be exhaustive error when using adapters
1) If it impossible to get at else branch than you can. throw IllegalStateException (Fragment $position is not correct) Your code can be changed at any time. And it will help you to better understand that you send not correct values. 2) Also if you have only two cases than you can use if (..) {} else {} statement.

https://github.com › Dobiasd › articles › blob › master › when_does_a_when_expression_in_kotlin_need_to_be_exhaustive_and_when_does_it_not.md

https://github.com › Dobiasd › articles › blob › master › when_does_a_when_expression_in_kotlin_need_to_be_exhaustive_and_when_does_it_not.md
When does a when expression in Kotlin need to be exhaustive … – GitHub
Recently, while working with Kotlin (version 1.3.50 ), a colleague and I recognized that we were unable to predict, in what cases, and in what way (error or just a recommendation), the IDE (IntelliJ IDEA version 2019.2.1) does complain about non-exhaustive when expressions. So I ran a short experiment, of which I’ll present the results here.

https://www.appsloveworld.com › kotlin › 100 › 8 › when-expression-must-be-exhaustive-error-when-using-adapters

https://www.appsloveworld.com › kotlin › 100 › 8 › when-expression-must-be-exhaustive-error-when-using-adapters
[Solved]-‘when’ expression must be exhaustive error when using adapters …
[Solved]-‘when’ expression must be exhaustive error when using adapters-kotlin Search score:8 Accepted answer 1) If it impossible to get at else branch than you can throw IllegalStateException(Fragment $position is not correct) Your code can be changed at any time. And it will help you to better understand that you send not correct values.

https://discuss.kotlinlang.org › t › solved-when-expression-recommended-to-be-exhaustive-even-if-it-is-impossible-to-reach-the-else-branch › 7379

https://discuss.kotlinlang.org › t › solved-when-expression-recommended-to-be-exhaustive-even-if-it-is-impossible-to-reach-the-else-branch › 7379
[SOLVED] ‘when’ expression recommended to be … – Kotlin Discussions
This inevitably leads to situations where the programmer knows that the when statement is effectively exhaustive but the compiler doesn’t. Even so, I think on balance it’s better for the compiler to issue a warning here because, if it’s not actually exhaustive, it might alert you to what might otherwise be a difficult bug to identify where you’d failed to code for all possibilities.

https://www.reddit.com › r › Kotlin › comments › cura4x › when_does_a_when_expression_in_kotlin_need_to_be

https://www.reddit.com › r › Kotlin › comments › cura4x › when_does_a_when_expression_in_kotlin_need_to_be
When does a when expression in Kotlin need to be exhaustive, and when …
Using when as a statement never requires that it’s exhaustive (though it’ll recommend it when using enums), and using it as an expression always requires exhaustivity. The question then becomes when is it a statement, and when is it an expression?.

https://ataulm.com › 2018 › 07 › 20 › exhaustive-when.html

https://ataulm.com › 2018 › 07 › 20 › exhaustive-when.html
TIL: when is when exhaustive? – Ataul Munim
TIL: when is when exhaustive? – Ataul Munim Kotlin’s when works similarly to Java’s switch. Once upon a time, I heard that when forces you to specify all the branches (when all the branches can be known by the compiler, with enums or sealed-classes), but I didn’t find this to be the case. Kotlin’s when works similarly to Java’s switch.

https://www.reddit.com › r › Kotlin › comments › bzsiw3 › force_exhaustive_whenstatement_sealed_classes

https://www.reddit.com › r › Kotlin › comments › bzsiw3 › force_exhaustive_whenstatement_sealed_classes
Force exhaustive when-statement (sealed classes) : Kotlin – reddit
needs to be exhausted, whereas the statement when (somePet) { is Dog -> println (Dog) } does not need to be exhausted. If we still want the statement to be exhaustive, there are two ways of forcing it to be exhaustive: Making it an expression by storing the value in a variable, allthough not using it

https://www.baeldung.com › kotlin › when

https://www.baeldung.com › kotlin › when
Guide to the when{} Block in Kotlin | Baeldung on Kotlin
2.4. when {} Used as a Statement. We can also use the when block as a statement. In this case, we don’t need to cover every possible value for the argument, and the value computed in each case block, if any, is just ignored. As a statement, we can use the when block similarly to how we use the switch statement in Java.

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