kotlinkotlinpoet

How to generate a class with a typealias parameter via kotlinpoet

I want to generate a kotlin class definition with typealias.

typealias MyAlias = BigDecimal
class TemplateState(var test: MyAlias) {
}

Any suggestions?

Solution

  • You can find it in the documentation:

    //create a TypeAlias and store it to use the name later
val typeAlias = TypeAliasSpec.builder("MyAlias", BigDecimal::class).build()
val type = TypeSpec.classBuilder("TemplateState").primaryConstructor(
    FunSpec.constructorBuilder().addParameter(
        //You can use the ClassName class to get the typeAlias type
        ParameterSpec.builder("test", ClassName("", typeAlias.name)).build()
    )
).build()
FileSpec.builder("com.example", "HelloWorld")
    .addTypeAlias(typeAlias)
    .addType(type)
    .build()