Using KotlinPoet, how would I create the Parameter...

# squarelibraries

[Dutch]

Using KotlinPoet, how would I create the ParameterSpec of class B in the following example?

abstract class A(
    open var field1: String
)

abstract class B(
    override var field1 : String
) : A(field1)

I tried to also create a corresponding PropertySpec for my class, but as a result I get the following:

public abstract class B(
  override field1: String
) : A() {
  public override var field1: String
}

[ephemient]

TypeSpec.classBuilder("B")
    .addModifiers(KModifier.ABSTRACT)
    .primaryConstructor(FunSpec.constructorBuilder()
        .addParameter("field1", STRING)
        .build())
    .superclass(ClassName("example", "A"))
    .addSuperclassConstructorParameter("field1")
    .addProperty(PropertySpec.builder("field1", STRING, KModifier.OVERRIDE)
        .mutable()
        .initializer("field1")
        .build())
    .build()

[ephemient]

but you don't need the property override; take it out and it generates

public abstract class B(
  field1: String
) : A(field1)

which still has a var field1: String

[Dutch]

Thank you @ephemient
I had something very similar, but it's missing the override var part, which is needed since I want to add the Room annotation "`ColumnInfo`"

Following this issue: https://github.com/square/kotlinpoet/issues/113 tells me that I need to add a property to my class, but even then, I don't get a var or val

I'm currently generating a test class with:

classBuilder.superclass(classDeclaration.buildClassName())
classBuilder.primaryConstructor(FunSpec.constructorBuilder()
    .addParameter(ParameterSpec.builder("cheese", String::class)
        .addModifiers(KModifier.OVERRIDE)
        .build())
    .build())
classBuilder.addSuperclassConstructorParameter("cheese")

classBuilder.addProperty(PropertySpec.builder("cheese", String::class)
    .addModifiers(KModifier.OVERRIDE)
    .mutable()
    .build())

And tried it with and without the property

[ephemient]

you're adding the property "cheese" twice, once with mutable and once without

[Dutch]

Yes, once as a normal property and one as the constructor parameter.
Even when I comment that part out (PropertySpec), the generated source is still missing the var part.

The PropertySpec is only there because in the issue it is stated that that one is neccesary for kotlinpoet to create the var or val at ParameterSpec level

[ephemient]

oh I misread, the override there is confusing (it doesn't make sense on a parameter)

[Dutch]

[Dutch]

Sry, i quite new to kotlin, so any help is appreciated

[ephemient]

with your code there (removing the override on the parameter and leaving it on the property only), it should generate

public class A(
  cheese: String
) : A(cheese) {
  public override var cheese: String
}

which is valid

[Dutch]

Thought that was the solution, but it still does not create a var.
So now I'm back at my first problem... Since it doesn't has a `var`or is overriden I cannot add my annotion

[Dutch]

Ah, after examaning the KotlinPoet code, it appears to be relativly easy.
The ProperySpec simply needs the initializer to be set to the ParameterSpec name

[Dutch]

classBuilder.superclass(classDeclaration.buildClassName())
classBuilder
    .primaryConstructor(FunSpec.constructorBuilder()
        .addParameter(ParameterSpec.builder("userName2", String::class)
            .addModifiers(KModifier.OVERRIDE)
            .addAnnotation(AnnotationSpec.builder(ColumnInfo::class).build())
            .build())
        .build())
classBuilder.addSuperclassConstructorParameter("userName2")

classBuilder.addProperty(PropertySpec.builder("userName2", String::class)
    .addModifiers(KModifier.OVERRIDE)
    .initializer("userName2")
    .mutable()
    .build())