How to document a primary constructor parameter with Kotlin Dokka

Question

Let's say there's a class which primary constructor has the parameter param that I'd like to be resolved (linked to the actual parameter) within the doc block of the class.

/** Class A does something using [param]. 
@constructor constructs A with [param].
*/
class A (param: Int)

However, the inscription param is highlighted by the IDE saying that it cannot resolve symbol param.

Answer 1

Actually, dokka correctly finds the parameter if you reference it with [param] in the @constructor paragraph, you can check that by inspecting the URL that appears in the assembled docs, which looks like:

file:///.../some.package/-a/-init-.html#some.package.A$<init>(kotlin.Int)/param

Seemingly, the warning about an unresolved reference is an issue with the IDE support for KDoc. Please report it at kotl.in/issue.

Another option is to use @param in the class KDoc:

/** 
 * Class A does something using [param]. 
 * @param param means something special.
*/
class A (param: Int)