Is it possible to create helper functions to instantiate annotations from 3rd party libraries I m using <https springdoc org |SpringDoc> to define OpenAPI metadata and would like to remove visual clutter e g something like this this doesn t work because `Annotation class cannot be instantiated` ```fun apiResponseOf code Int kclass KClass lt gt = ApiResponse responseCode = code toString content = arrayOf Content schema = Schema kclass Operation summary = List all Foos ApiResponses apiResponseOf 200 FooResponse class ``` Instead of ``` Operation summary = List all Foos ApiResponses ApiResponse responseCode = 200 content = Content schema = Schema implementation = FooResponse class ```

Is it possible to create 'helper functions' to instantiate annotations from 3rd-party libraries? I'm using SpringDoc to define OpenAPI metadata, and would like to remove visual clutter. e.g., something like this; this doesn't work because `Annotation class cannot be instantiated`:

fun apiResponseOf(code: Int, kclass: KClass<*>) = ApiResponse(responseCode = code.toString(), content = arrayOf(Content(schema = Schema(kclass))))

@Operation(summary = "List all Foos")
@ApiResponses(
    apiResponseOf(200, FooResponse::class)
)

Instead of:

@Operation(summary = "List all Foos")
@ApiResponses(
    ApiResponse(responseCode = "200", content = [Content(schema = Schema(implementation = FooResponse::class))])
)

Youssef Shoaib [MOD]

08/20/2021, 7:49 PM

https://github.com/Kotlin/KEEP/blob/master/proposals/annotation-instantiation.md It's currently being worked on

👍 1

Richard Gomez

08/20/2021, 7:58 PM

Neat, thanks.

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