hi there Im trying to understand why this `var ext...

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[mp]

hi there
Im trying to understand why this var externalId: String = "" code provide to me this kind of object wrapping. but when I`m trying to set this value in data class Id(var externalId: String) it actually tooks 16332. And I “miss” my reference
I can’t understand why this ref$ObjectRef appears
Advice pls some documentation page about this

[tateisu]

is that propertie? local variable that modified by lambda?

[arve]

@mp Did you mean val instead of var?

[mp]

@tateisu yeap - wanna implement postponed update from lambda
and yes - its variable defined in other lambda as local var

[mp]

@arve as I can see - there is no big difference in val or var

[arve]

Could you share some more code context? I don't quite understand exactly what you're trying to do 🙂

[tateisu]

that lambda have to access "reference of string" to modifiy it, then kotlin make its local var to object reference.

[tateisu]

debugger shows its representation on JVM, it may not equals to as defined by you.

[tateisu]

simple local var that is used only in its scope, it's representation on JVM is register. it can't be accessed from outside of the method. if access is required by such as lambda, inner function,etc, kotlin make reference representation of local var and pass it to lambda,inner function,etc those have representation as another jvm method.

[mp]

@arve @tateisu probably this will give a bit more understanding what I`m trying to do
but still code is not very representable

[mp]

but as I understand @tateisu gave related explanation already

[mp]

@tateisu but its only read access ?!
because when I`m trying to store that reference it comes unwrapped and I can’t modify it from lambda that I`ve showed before

[mp]

seems that I`m trying to implement very bad practice thing

[tateisu]

subUrl is property, caller pass the class object instance to lambda, no need to create reference variable.

[tateisu]

simple local var that is used only in its scope, it's representation on JVM is register. it can't be accessed from outside of the method. but object property has different situation.

[mp]

I have cases when I will resolve suburl later (inside lambda)

[tateisu]

subUrl is property, caller pass the class object instance to lambda, no need to create reference variable.

[tateisu]

"Tools > Kotlin > Show Kotlin Bytecode" to check what bytecode is generated.

[mp]

@tateisu I`m trying to change this subUrl later in lambda - much later when specific instance of TestCases created

[mp]

here will be created 2 test cases and I though that I’ll have ability to change suburl of second one with editing of externalId that I`ve allocate above

[tateisu]

I do not know what you want to avoid. I think that it should be used as it is

[tateisu]

ObjectReference is jvm representation. still it is string in kotlin syntax.

[mp]

its ok… I don’t now also! 😃 😃 😃 still tnx