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package org.jetbrains.dokka
import org.jetbrains.dokka.DocumentationNode.*
class KotlinLanguageService : LanguageService {
override fun render(node: DocumentationNode): String {
return when (node.kind) {
Kind.Package -> renderPackage(node)
Kind.Class,
Kind.Interface,
Kind.Enum,
Kind.EnumItem,
Kind.Object -> renderClass(node)
Kind.TypeParameter -> renderTypeParameter(node)
Kind.Type,
Kind.UpperBound -> renderType(node)
Kind.Modifier -> renderModifier(node)
Kind.Constructor,
Kind.Function -> renderFunction(node)
Kind.Property -> renderProperty(node)
else -> "${node.kind}: ${node.name}"
}
}
override fun renderName(node: DocumentationNode): String {
return when (node.kind) {
Kind.Constructor -> node.owner!!.name
else -> node.name
}
}
override fun renderPackage(node: DocumentationNode): String {
return "package ${node.name}"
}
override fun renderType(node: DocumentationNode): String {
val typeArguments = node.details(Kind.Type)
val renders = typeArguments.map { renderType(it) }
if (node.name == "Function${typeArguments.count() - 1}") {
// lambda
return "(${renders.take(renders.size - 1).join()}) -> ${renders.last()}"
}
if (node.name == "ExtensionFunction${typeArguments.count() - 2}") {
// extension lambda
return "${renders.first()}.(${renders.drop(1).take(renders.size - 2).join()}) -> ${renders.last()}"
}
if (typeArguments.none())
return node.name
return "${node.name}<${renders.join()}>"
}
override fun renderModifier(node: DocumentationNode): String {
return when (node.name) {
"final" -> ""
"internal" -> ""
else -> node.name
}
}
override fun renderTypeParameter(node: DocumentationNode): String {
val constraints = node.details(Kind.UpperBound)
return if (constraints.none())
node.name
else {
node.name + " : " + constraints.map { renderType(node) }.join()
}
}
override fun renderParameter(node: DocumentationNode): String {
return node.name + ": " + renderType(node.detail(Kind.Type))
}
override fun renderTypeParametersForNode(node: DocumentationNode): String {
return StringBuilder {
val typeParameters = node.details(Kind.TypeParameter)
if (typeParameters.any()) {
append("<")
append(typeParameters.map { renderTypeParameter(it) }.join())
append("> ")
}
}.toString()
}
override fun renderModifiersForNode(node: DocumentationNode): String {
val modifiers = node.details(Kind.Modifier).map { renderModifier(it) }.filter { it != "" }
if (modifiers.none())
return ""
return modifiers.join(" ", postfix = " ")
}
override fun renderClass(node: DocumentationNode): String {
return StringBuilder {
append(renderModifiersForNode(node))
when (node.kind) {
Kind.Class -> append("class ")
Kind.Interface -> append("trait ")
Kind.Enum -> append("enum class ")
Kind.EnumItem -> append("enum val ")
Kind.Object -> append("object ")
else -> throw IllegalArgumentException("Node $node is not a class-like object")
}
append(node.name)
append(renderTypeParametersForNode(node))
/*
val constructors = node.members(Kind.Constructor)
if (constructors.count() == 1) {
append("(")
append(constructors[0].details(Kind.Parameter).map { renderParameter(it) }.join())
append(")")
}
*/
}.toString()
}
override fun renderFunction(node: DocumentationNode): String {
return StringBuilder {
append(renderModifiersForNode(node))
when (node.kind) {
Kind.Constructor -> append(node.owner!!.name)
Kind.Function -> append("fun ")
else -> throw IllegalArgumentException("Node $node is not a function-like object")
}
append(renderTypeParametersForNode(node))
val receiver = node.details(Kind.Receiver).firstOrNull() // TODO: replace with singleOrNull when fixed
if (receiver != null) {
append(renderType(receiver.detail(Kind.Type)))
append(".")
}
if (node.kind != Kind.Constructor)
append(node.name)
append("(")
append(node.details(Kind.Parameter).map { renderParameter(it) }.join())
append(")")
if (node.kind != Kind.Constructor) {
append(": ")
append(renderType(node.detail(Kind.Type)))
}
}.toString()
}
override fun renderProperty(node: DocumentationNode): String {
return StringBuilder {
append(renderModifiersForNode(node))
when (node.kind) {
Kind.Property -> append("val ")
else -> throw IllegalArgumentException("Node $node is not a property")
}
append(renderTypeParametersForNode(node))
val receiver = node.details(Kind.Receiver).firstOrNull() // TODO: replace with singleOrNull when fixed
if (receiver != null) {
append(renderType(receiver.detail(Kind.Type)))
append(".")
}
append(node.name)
append(": ")
append(renderType(node.detail(Kind.Type)))
}.toString()
}
}
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