Changing approach from platform-driven to source-set-driven

21 files changed, 528 insertions, 574 deletions

diff --git a/plugins/base/src/main/kotlin/DokkaBase.kt b/plugins/base/src/main/kotlin/DokkaBase.kt
index 2da3fbd4..ab7d089d 100644
--- a/plugins/base/src/main/kotlin/DokkaBase.kt
+++ b/plugins/base/src/main/kotlin/DokkaBase.kt
@@ -54,15 +54,15 @@ class DokkaBase : DokkaPlugin() {
     }
 
     val preMergeDocumentableTransformer by extending(isFallback = true) {
-        CoreExtensions.preMergeDocumentableTransformer with DocumentableVisibilityFilter
+        CoreExtensions.preMergeDocumentableTransformer providing ::DocumentableVisibilityFilter
     }
 
     val actualTypealiasAdder by extending {
-        CoreExtensions.preMergeDocumentableTransformer with ActualTypealiasAdder()
+        CoreExtensions.preMergeDocumentableTransformer providing ::ActualTypealiasAdder
     }
 
     val modulesAndPackagesDocumentation by extending(isFallback = true) {
-        CoreExtensions.preMergeDocumentableTransformer with ModuleAndPackageDocumentationTransformer
+        CoreExtensions.preMergeDocumentableTransformer providing ::ModuleAndPackageDocumentationTransformer
     }
 
     val kotlinSignatureProvider by extending(isFallback = true) {
diff --git a/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt b/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt
index 925767ce..1340529c 100644
--- a/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt
+++ b/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt
@@ -3,6 +3,7 @@ package org.jetbrains.dokka.base.renderers
 import kotlinx.coroutines.*
 import org.jetbrains.dokka.base.DokkaBase
 import org.jetbrains.dokka.base.resolvers.local.LocationProvider
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.pages.*
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.plugability.plugin
@@ -26,7 +27,7 @@ abstract class DefaultRenderer<T>(
     abstract fun T.buildList(
         node: ContentList,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     )
 
     abstract fun T.buildNewLine()
@@ -34,7 +35,7 @@ abstract class DefaultRenderer<T>(
     abstract fun T.buildTable(
         node: ContentTable,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     )
 
     abstract fun T.buildText(textNode: ContentText)
@@ -49,7 +50,7 @@ abstract class DefaultRenderer<T>(
     open fun T.buildGroup(
         node: ContentGroup,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     ) =
         wrapGroup(node, pageContext) { node.children.forEach { it.build(this, pageContext, platformRestriction) } }
 
@@ -59,7 +60,7 @@ abstract class DefaultRenderer<T>(
     open fun T.buildLinkText(
         nodes: List<ContentNode>,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     ) {
         nodes.forEach { it.build(this, pageContext, platformRestriction) }
     }
@@ -71,7 +72,7 @@ abstract class DefaultRenderer<T>(
     open fun T.buildHeader(
         node: ContentHeader,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     ) {
         buildHeader(node.level) { node.children.forEach { it.build(this, pageContext, platformRestriction) } }
     }
@@ -79,22 +80,22 @@ abstract class DefaultRenderer<T>(
     open fun ContentNode.build(
         builder: T,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     ) =
         builder.buildContentNode(this, pageContext, platformRestriction)
 
     open fun T.buildContentNode(
         node: ContentNode,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        platformRestriction: SourceSetData? = null
     ) {
-        if (platformRestriction == null || platformRestriction in node.platforms) {
+        if (platformRestriction == null || platformRestriction in node.sourceSets) {
             when (node) {
                 is ContentText -> buildText(node)
                 is ContentHeader -> buildHeader(node, pageContext, platformRestriction)
                 is ContentCode -> buildCode(node.children, node.language, pageContext)
                 is ContentDRILink ->
-                    buildLink(locationProvider.resolve(node.address, node.platforms.toList(), pageContext)) {
+                    buildLink(locationProvider.resolve(node.address, node.sourceSets.toList(), pageContext)) {
                         buildLinkText(node.children, pageContext, platformRestriction)
                     }
                 is ContentResolvedLink -> buildLink(node.address) {
@@ -154,4 +155,4 @@ abstract class DefaultRenderer<T>(
     }
 }
 
-fun ContentPage.platforms() = this.content.platforms.toList()
\ No newline at end of file
+fun ContentPage.platforms() = this.content.sourceSets.toList()
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt b/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
index c061cabf..caabcda7 100644
--- a/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
+++ b/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
@@ -7,6 +7,7 @@ import org.jetbrains.dokka.base.DokkaBase
 import org.jetbrains.dokka.base.renderers.DefaultRenderer
 import org.jetbrains.dokka.links.DRI
 import org.jetbrains.dokka.model.DFunction
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.pages.*
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.plugability.plugin
@@ -42,10 +43,10 @@ open class HtmlRenderer(
     override fun FlowContent.buildPlatformDependent(content: PlatformHintedContent, pageContext: ContentPage) {
         div("platform-hinted") {
             attributes["data-platform-hinted"] = "data-platform-hinted"
-            val contents = content.platforms.mapIndexed { index, platform ->
+            val contents = content.sourceSets.mapIndexed { index, platform ->
                 platform to createHTML(prettyPrint = false).div(classes = "content") {
                     if (index == 0) attributes["data-active"] = ""
-                    attributes["data-togglable"] = platform.targets.joinToString("-")
+                    attributes["data-togglable"] = platform.sourceSetName
                     buildContentNode(content.inner, pageContext, platform)
                 }
             }
@@ -56,8 +57,8 @@ open class HtmlRenderer(
                     contents.forEachIndexed { index, pair ->
                         button(classes = "platform-bookmark") {
                             if (index == 0) attributes["data-active"] = ""
-                            attributes["data-toggle"] = pair.first.targets.joinToString("-")
-                            text(pair.first.targets.joinToString(", "));
+                            attributes["data-toggle"] = pair.first.sourceSetName
+                            text(pair.first.sourceSetName)
                         }
                     }
                 }
@@ -71,27 +72,27 @@ open class HtmlRenderer(
     override fun FlowContent.buildList(
         node: ContentList,
         pageContext: ContentPage,
-        platformRestriction: PlatformData?
-    ) = if (node.ordered) ol { buildListItems(node.children, pageContext, platformRestriction) }
-    else ul { buildListItems(node.children, pageContext, platformRestriction) }
+        sourceSetRestriction: SourceSetData?
+    ) = if (node.ordered) ol { buildListItems(node.children, pageContext, sourceSetRestriction) }
+    else ul { buildListItems(node.children, pageContext, sourceSetRestriction) }
 
     open fun OL.buildListItems(
         items: List<ContentNode>,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        sourceSetRestriction: SourceSetData? = null
     ) {
         items.forEach {
             if (it is ContentList)
                 buildList(it, pageContext)
             else
-                li { it.build(this, pageContext, platformRestriction) }
+                li { it.build(this, pageContext, sourceSetRestriction) }
         }
     }
 
     open fun UL.buildListItems(
         items: List<ContentNode>,
         pageContext: ContentPage,
-        platformRestriction: PlatformData? = null
+        sourceSetRestriction: SourceSetData? = null
     ) {
         items.forEach {
             if (it is ContentList)
@@ -118,64 +119,63 @@ open class HtmlRenderer(
     private fun FlowContent.buildRow(
         node: ContentGroup,
         pageContext: ContentPage,
-        platformRestriction: PlatformData?
+        sourceSetRestriction: SourceSetData?
     ) {
         node.children
             .filter {
-                platformRestriction == null || platformRestriction in it.platforms
+                sourceSetRestriction == null || sourceSetRestriction in it.sourceSets
             }
             .takeIf { it.isNotEmpty() }
             ?.let {
                 div(classes = "table-row") {
                     it.filter { it.dci.kind != ContentKind.Symbol }.takeIf { it.isNotEmpty() }?.let {
                         div("main-subrow ${node.style.joinToString { it.toString().decapitalize() }}") {
-                            it.filter { platformRestriction == null || platformRestriction in it.platforms }
+                            it.filter { sourceSetRestriction == null || sourceSetRestriction in it.sourceSets }
                                 .forEach {
                                     when(it.dci.kind){
-                                        ContentKind.PlatformDependantHint -> {
+                                        ContentKind.SourceSetDependantHint -> {
                                             div("platform-dependant-row keyValue"){
                                                 div()
                                                 div("title"){
-                                                    it.build(this, pageContext, platformRestriction)
+                                                    it.build(this, pageContext, sourceSetRestriction)
                                                 }
                                             }
                                         }
                                         ContentKind.Main -> {
                                             div("title-row"){
-                                                it.build(this, pageContext, platformRestriction)
+                                                it.build(this, pageContext, sourceSetRestriction)
                                                 div()
-                                                if (ContentKind.shouldBePlatformTagged(node.dci.kind) && node.platforms.size == 1) {
+                                                if (ContentKind.shouldBePlatformTagged(node.dci.kind) && node.sourceSets.size == 1) {
                                                     createPlatformTags(node)
                                                 } else {
                                                     div()
                                                 }
                                             }
                                         }
-                                        else -> div { it.build(this, pageContext, platformRestriction) }
+                                        else -> div { it.build(this, pageContext, sourceSetRestriction) }
                                     }
                                 }
                         }
                     }
                     it.filter { it.dci.kind == ContentKind.Symbol }.takeIf { it.isNotEmpty() }?.let {
                         div("signature-subrow") {
-                            div("signatures"){
+                            div("signatures") {
                                 it.forEach {
-                                    it.build(this, pageContext, platformRestriction)
+                                    it.build(this, pageContext, sourceSetRestriction)
                                 }
                             }
                         }
                     }
                 }
-        }
+            }
     }
 
-    private fun FlowContent.createPlatformTags( node: ContentNode ) {
+    private fun FlowContent.createPlatformTags(node: ContentNode) {
         div("platform-tags") {
-            node.platforms.forEach {
+            node.sourceSets.forEach {
                 div("platform-tag") {
-                    val targets = it.targets.joinToString(", ")
-                    if( targets.equals("common", ignoreCase = true) ) classes = classes + "common"
-                    text(it.targets.joinToString(", "))
+                    if (it.sourceSetName.equals("common", ignoreCase = true)) classes = classes + "common"
+                    text(it.sourceSetName)
                 }
             }
         }
@@ -184,11 +184,11 @@ open class HtmlRenderer(
     override fun FlowContent.buildTable(
         node: ContentTable,
         pageContext: ContentPage,
-        platformRestriction: PlatformData?
+        sourceSetRestriction: SourceSetData?
     ) {
         div(classes = "table") {
             node.children.forEach {
-                buildRow(it, pageContext, platformRestriction)
+                buildRow(it, pageContext, sourceSetRestriction)
             }
         }
     }
@@ -221,7 +221,7 @@ open class HtmlRenderer(
 
     fun FlowContent.buildLink(
         to: DRI,
-        platforms: List<PlatformData>,
+        platforms: List<SourceSetData>,
         from: PageNode? = null,
         block: FlowContent.() -> Unit
     ) = buildLink(locationProvider.resolve(to, platforms, from), block)
diff --git a/plugins/base/src/main/kotlin/renderers/html/NavigationPage.kt b/plugins/base/src/main/kotlin/renderers/html/NavigationPage.kt
index 4b90cc8a..4048c11e 100644
--- a/plugins/base/src/main/kotlin/renderers/html/NavigationPage.kt
+++ b/plugins/base/src/main/kotlin/renderers/html/NavigationPage.kt
@@ -3,8 +3,8 @@ package org.jetbrains.dokka.base.renderers.html
 import kotlinx.html.*
 import kotlinx.html.stream.createHTML
 import org.jetbrains.dokka.links.DRI
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.pages.PageNode
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.pages.RendererSpecificPage
 import org.jetbrains.dokka.pages.RenderingStrategy
 
@@ -41,7 +41,7 @@ class NavigationPage(val root: NavigationNode) : RendererSpecificPage {
 class NavigationNode(
     val name: String,
     val dri: DRI,
-    val platforms: List<PlatformData>,
+    val platforms: List<SourceSetData>,
     val children: List<NavigationNode>
 )
 
diff --git a/plugins/base/src/main/kotlin/resolvers/local/DefaultLocationProvider.kt b/plugins/base/src/main/kotlin/resolvers/local/DefaultLocationProvider.kt
index 29c4a425..322f4927 100644
--- a/plugins/base/src/main/kotlin/resolvers/local/DefaultLocationProvider.kt
+++ b/plugins/base/src/main/kotlin/resolvers/local/DefaultLocationProvider.kt
@@ -4,6 +4,8 @@ import org.jetbrains.dokka.DokkaConfiguration
 import org.jetbrains.dokka.base.DokkaBase
 import org.jetbrains.dokka.base.resolvers.external.ExternalLocationProvider
 import org.jetbrains.dokka.links.DRI
+import org.jetbrains.dokka.model.SourceSetData
+import org.jetbrains.dokka.model.sourceSet
 import org.jetbrains.dokka.pages.*
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.plugability.plugin
@@ -46,15 +48,14 @@ open class DefaultLocationProvider(
     override fun resolve(node: PageNode, context: PageNode?, skipExtension: Boolean): String =
         pathTo(node, context) + if (!skipExtension) extension else ""
 
-    override fun resolve(dri: DRI, platforms: List<PlatformData>, context: PageNode?): String =
+    override fun resolve(dri: DRI, sourceSets: List<SourceSetData>, context: PageNode?): String =
         pagesIndex[dri]?.let { resolve(it, context) } ?:
         // Not found in PageGraph, that means it's an external link
         getLocation(dri,
             this.dokkaContext.configuration.passesConfigurations
                 .filter { passConfig ->
-                    platforms.toSet()
-                        .contains(PlatformData(passConfig.moduleName, passConfig.analysisPlatform, passConfig.targets))
-                } // TODO: change targets to something better?
+                    sourceSets.toSet().contains(dokkaContext.sourceSet(passConfig))
+                }
                 .groupBy({ it.jdkVersion }, { it.externalDocumentationLinks })
                 .map { it.key to it.value.flatten().distinct() }.toMap()
         )
diff --git a/plugins/base/src/main/kotlin/resolvers/local/LocationProvider.kt b/plugins/base/src/main/kotlin/resolvers/local/LocationProvider.kt
index 0814cb3e..c6c48d63 100644
--- a/plugins/base/src/main/kotlin/resolvers/local/LocationProvider.kt
+++ b/plugins/base/src/main/kotlin/resolvers/local/LocationProvider.kt
@@ -1,12 +1,12 @@
 package org.jetbrains.dokka.base.resolvers.local
 
 import org.jetbrains.dokka.links.DRI
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.pages.PageNode
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.pages.RootPageNode
 
 interface LocationProvider {
-    fun resolve(dri: DRI, platforms: List<PlatformData>, context: PageNode? = null): String
+    fun resolve(dri: DRI, sourceSets: List<SourceSetData>, context: PageNode? = null): String
     fun resolve(node: PageNode, context: PageNode? = null, skipExtension: Boolean = false): String
     fun resolveRoot(node: PageNode): String
     fun ancestors(node: PageNode): List<PageNode>
diff --git a/plugins/base/src/main/kotlin/signatures/KotlinSignatureProvider.kt b/plugins/base/src/main/kotlin/signatures/KotlinSignatureProvider.kt
index 313973bf..241103bf 100644
--- a/plugins/base/src/main/kotlin/signatures/KotlinSignatureProvider.kt
+++ b/plugins/base/src/main/kotlin/signatures/KotlinSignatureProvider.kt
@@ -10,7 +10,6 @@ import org.jetbrains.dokka.model.*
 import org.jetbrains.dokka.model.properties.WithExtraProperties
 import org.jetbrains.dokka.pages.ContentKind
 import org.jetbrains.dokka.pages.ContentNode
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.pages.TextStyle
 import org.jetbrains.dokka.utilities.DokkaLogger
 
@@ -35,7 +34,7 @@ class KotlinSignatureProvider(ctcc: CommentsToContentConverter, logger: DokkaLog
         link(e.name, e.dri)
     }
 
-    private fun actualTypealiasedSignature(dri: DRI, name: String, aliasedTypes: PlatformDependent<Bound>) =
+    private fun actualTypealiasedSignature(dri: DRI, name: String, aliasedTypes: SourceSetDependent<Bound>) =
         aliasedTypes.entries.groupBy({ it.value }, { it.key }).map { (bound, platforms) ->
             contentBuilder.contentFor(dri, platforms.toSet(), ContentKind.Symbol, setOf(TextStyle.Monospace)) {
                 text("actual typealias ")
@@ -49,17 +48,17 @@ class KotlinSignatureProvider(ctcc: CommentsToContentConverter, logger: DokkaLog
         (c as? WithExtraProperties<out DClasslike>)?.let {
             c.extra[ActualTypealias]?.let {
                 contentBuilder.contentFor(c) {
-                    +regularSignature(c, platformData = c.platformData.toSet() - it.underlyingType.keys)
+                    +regularSignature(c, sourceSets = c.sourceSets.toSet() - it.underlyingType.keys)
                     +actualTypealiasedSignature(c.dri, c.name.orEmpty(), it.underlyingType)
                 }
             } ?: regularSignature(c)
         } ?: regularSignature(c)
 
-    private fun regularSignature(c: DClasslike, platformData: Set<PlatformData> = c.platformData.toSet()) =
-        contentBuilder.contentFor(c, ContentKind.Symbol, setOf(TextStyle.Monospace), platformData = platformData) {
-            platformText(c.visibility, platformData) { (it.takeIf { it !in ignoredVisibilities }?.name ?: "") + " " }
+    private fun regularSignature(c: DClasslike, sourceSets: Set<SourceSetData> = c.sourceSets.toSet()) =
+        contentBuilder.contentFor(c, ContentKind.Symbol, setOf(TextStyle.Monospace), sourceSets = sourceSets) {
+            platformText(c.visibility, sourceSets) { (it.takeIf { it !in ignoredVisibilities }?.name ?: "") + " " }
             if (c is DClass) {
-                platformText(c.modifier, platformData) {
+                platformText(c.modifier, sourceSets) {
                     if (c.extra[AdditionalModifiers]?.content?.contains(ExtraModifiers.DATA) == true && it.name == "final") "data "
                     else it.name + " "
                 }
@@ -74,23 +73,23 @@ class KotlinSignatureProvider(ctcc: CommentsToContentConverter, logger: DokkaLog
             link(c.name!!, c.dri)
             if (c is DClass) {
                 val pConstructor = c.constructors.singleOrNull { it.extra[PrimaryConstructorExtra] != null }
-                list(pConstructor?.parameters.orEmpty(), "(", ")", ",", pConstructor?.platformData.orEmpty().toSet()) {
+                list(pConstructor?.parameters.orEmpty(), "(", ")", ",", pConstructor?.sourceSets.orEmpty().toSet()) {
                     text(it.name ?: "", styles = mainStyles.plus(TextStyle.Bold).plus(TextStyle.Indented))
                     text(": ")
                     signatureForProjection(it.type)
                 }
             }
             if (c is WithSupertypes) {
-                c.supertypes.filter { it.key in platformData }.map { (p, dris) ->
-                    list(dris, prefix = " : ", platformData = setOf(p)) {
-                        link(it.sureClassNames, it, platformData = setOf(p))
+                c.supertypes.filter { it.key in sourceSets }.map { (p, dris) ->
+                    list(dris, prefix = " : ", sourceSets = setOf(p)) {
+                        link(it.sureClassNames, it, sourceSets = setOf(p))
                     }
                 }
             }
         }
 
-    private fun propertySignature(p: DProperty, platformData: Set<PlatformData> = p.platformData.toSet()) =
-        contentBuilder.contentFor(p, ContentKind.Symbol, setOf(TextStyle.Monospace), platformData = platformData) {
+    private fun propertySignature(p: DProperty, sourceSets: Set<SourceSetData> = p.sourceSets.toSet()) =
+        contentBuilder.contentFor(p, ContentKind.Symbol, setOf(TextStyle.Monospace), sourceSets = sourceSets) {
             platformText(p.visibility) { (it.takeIf { it !in ignoredVisibilities }?.name ?: "") + " " }
             platformText(p.modifier){ it.name + " "}
             p.setter?.let { text("var ") } ?: text("val ")
@@ -106,8 +105,8 @@ class KotlinSignatureProvider(ctcc: CommentsToContentConverter, logger: DokkaLog
             signatureForProjection(p.type)
         }
 
-    private fun functionSignature(f: DFunction, platformData: Set<PlatformData> = f.platformData.toSet()) =
-        contentBuilder.contentFor(f, ContentKind.Symbol, setOf(TextStyle.Monospace), platformData = platformData) {
+    private fun functionSignature(f: DFunction, sourceSets: Set<SourceSetData> = f.sourceSets.toSet()) =
+        contentBuilder.contentFor(f, ContentKind.Symbol, setOf(TextStyle.Monospace), sourceSets = sourceSets) {
             platformText(f.visibility) { (it.takeIf { it !in ignoredVisibilities }?.name ?: "") + " " }
             platformText(f.modifier) { it.name + " " }
             text("fun ")
@@ -147,7 +146,7 @@ class KotlinSignatureProvider(ctcc: CommentsToContentConverter, logger: DokkaLog
                     t,
                     ContentKind.Symbol,
                     setOf(TextStyle.Monospace),
-                    platformData = platforms.toSet()
+                    sourceSets = platforms.toSet()
                 ) {
                     platformText(t.visibility) { (it.takeIf { it !in ignoredVisibilities }?.name ?: "") + " " }
                     text("typealias ")
@@ -196,8 +195,8 @@ class KotlinSignatureProvider(ctcc: CommentsToContentConverter, logger: DokkaLog
             is PrimitiveJavaType -> signatureForProjection(p.translateToKotlin())
         }
 
-    private fun funType(dri: DRI, platformData: Set<PlatformData>, type: TypeConstructor) =
-        contentBuilder.contentFor(dri, platformData, ContentKind.Symbol, setOf(TextStyle.Monospace)) {
+    private fun funType(dri: DRI, sourceSets: Set<SourceSetData>, type: TypeConstructor) =
+        contentBuilder.contentFor(dri, sourceSets, ContentKind.Symbol, setOf(TextStyle.Monospace)) {
             if (type.extension) {
                 signatureForProjection(type.projections.first())
                 text(".")
diff --git a/plugins/base/src/main/kotlin/transformers/documentables/ActualTypealiasAdder.kt b/plugins/base/src/main/kotlin/transformers/documentables/ActualTypealiasAdder.kt
index 35f27a94..cab4a9d2 100644
--- a/plugins/base/src/main/kotlin/transformers/documentables/ActualTypealiasAdder.kt
+++ b/plugins/base/src/main/kotlin/transformers/documentables/ActualTypealiasAdder.kt
@@ -6,8 +6,8 @@ import org.jetbrains.dokka.model.properties.WithExtraProperties
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.documentation.PreMergeDocumentableTransformer
 
-class ActualTypealiasAdder : PreMergeDocumentableTransformer {
-    override fun invoke(modules: List<DModule>, context: DokkaContext) = modules.map { it.mergeTypealiases() }
+class ActualTypealiasAdder(val context: DokkaContext) : PreMergeDocumentableTransformer {
+    override fun invoke(modules: List<DModule>) = modules.map { it.mergeTypealiases() }
 
     private fun DModule.mergeTypealiases(): DModule = copy(packages = packages.map { pkg ->
         if (pkg.typealiases.isEmpty()) {
@@ -64,11 +64,11 @@ class ActualTypealiasAdder : PreMergeDocumentableTransformer {
         typealiases: Map<DRI, DTypeAlias>
     ): List<T> where T : DClasslike, T : WithExtraProperties<T>, T : WithExpectActual =
         elements.map { element ->
-            if (element.sources.expect != null) {
+            if (element.expectPresentInSet != null) {
                 typealiases[element.dri]?.let { ta ->
                     element.withNewExtras(
                         element.extra + ActualTypealias(
-                            PlatformDependent.from(ta.platformData.single(), ta.underlyingType.values.single())
+                            mapOf(ta.sourceSets.single() to ta.underlyingType.values.single())
                         )
                     )
                 } ?: element
diff --git a/plugins/base/src/main/kotlin/transformers/documentables/DefaultDocumentableMerger.kt b/plugins/base/src/main/kotlin/transformers/documentables/DefaultDocumentableMerger.kt
index f871cdec..862f9240 100644
--- a/plugins/base/src/main/kotlin/transformers/documentables/DefaultDocumentableMerger.kt
+++ b/plugins/base/src/main/kotlin/transformers/documentables/DefaultDocumentableMerger.kt
@@ -2,7 +2,6 @@ package org.jetbrains.dokka.base.transformers.documentables
 
 import org.jetbrains.dokka.model.*
 import org.jetbrains.dokka.model.properties.mergeExtras
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.documentation.DocumentableMerger
 import org.jetbrains.kotlin.utils.addToStdlib.firstNotNullResult
@@ -24,8 +23,9 @@ internal object DefaultDocumentableMerger : DocumentableMerger {
                     list.flatMap { it.packages },
                     DPackage::mergeWith
                 ),
-                documentation = list.platformDependentFor { documentation },
-                platformData = list.flatMap { it.platformData }.distinct()
+                documentation = list.map { it.documentation }.flatMap { it.entries }.associate { (k,v) -> k to v },
+                expectPresentInSet = list.firstNotNullResult { it.expectPresentInSet },
+                sourceSets = list.flatMap { it.sourceSets }
             ).mergeExtras(left, right)
         }
     }
@@ -36,115 +36,51 @@ private fun <T : Documentable> merge(elements: List<T>, reducer: (T, T) -> T): L
         .reduce { _, left, right -> reducer(left, right) }
         .values.toList()
 
-private fun <T : Any, D : Documentable> Iterable<D>.platformDependentFor(
-    selector: D.() -> PlatformDependent<T>
-): PlatformDependent<T> {
-    val actuals = map { it.selector().map }
-        .flatMap { it.entries }
-        .associate { (k, v) -> k to v }
-
-    val expected = firstNotNullResult { it.selector().expect }
-
-    return PlatformDependent(actuals, expected)
-}
-
-private fun <T : Any> PlatformDependent<T>.mergeWith(other: PlatformDependent<T>) = PlatformDependent(
-    map = this + other,
-    expect = expect ?: other.expect
-)
-
 private fun <T> mergeExpectActual(
     elements: List<T>,
-    reducer: (T, T) -> T,
-    platformSetter: T.(List<PlatformData>) -> T
+    reducer: (T, T) -> T
 ): List<T> where T : Documentable, T : WithExpectActual {
 
-    fun findExpect(actual: T, expects: List<T>): Expect<T> =
-        expects.find { it.platformData.flatMap { it.targets }.containsAll(actual.platformData.flatMap { it.targets }) }
-            .let { Expect.from(it) }
-
-    fun reduceExpectActual(entry: Map.Entry<Expect<T>, List<T>>): List<T> = when (val expect = entry.key) {
-        Expect.NotFound -> entry.value
-        is Expect.Found -> entry.value.plus(expect.expect).reduce(reducer).let(::listOf)
-    }
-
-    fun analyzeExpectActual(sameDriElements: List<T>): List<T> {
-        val pathGrouped: Collection<T> = mutableMapOf<Set<String>, T>().apply {
-            sameDriElements.forEach { documentable ->
-                val paths = documentable.sources.allValues.map { it.path }.toSet()
-                val key = keys.find { it.containsAll(paths) }
-                if (key == null) {
-                    put(paths, documentable)
-                } else {
-                    computeIfPresent(key) { _, old -> reducer(old, documentable) }
-                }
-            }
-        }.values
-        val (expect, actual) = pathGrouped.partition { it.sources.expect != null }
-        val mergedExpect = expect.groupBy { it.sources.expect?.path }.values.map { e ->
-            e.first().platformSetter(e.flatMap { it.platformData }.distinct())
-        }
-        val groupExpectActual = actual.groupBy { findExpect(it, mergedExpect) }
-        val pathsToExpects: Set<String> =
-            groupExpectActual.keys.filterIsInstance<Expect.Found<T>>()
-                .mapNotNull { it.expect.sources.expect?.path }.toSet()
+    fun analyzeExpectActual(sameDriElements: List<T>) = sameDriElements.reduce(reducer)
 
-        return groupExpectActual.flatMap { reduceExpectActual(it) } + expect.filterNot { it.sources.expect?.path in pathsToExpects }
-    }
-
-    return elements.groupBy { it.dri }.values.flatMap(::analyzeExpectActual)
-}
-
-private sealed class Expect<out T : Any> {
-    object NotFound : Expect<Nothing>()
-    data class Found<T : Any>(val expect: T) : Expect<T>()
-
-    companion object {
-        fun <T : Any> from(t: T?) = t?.let(::Found) ?: NotFound
-    }
+    return elements.groupBy { it.dri }.values.map(::analyzeExpectActual)
 }
 
 fun DPackage.mergeWith(other: DPackage): DPackage = copy(
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
-    documentation = documentation.mergeWith(other.documentation),
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
     typealiases = merge(typealiases + other.typealiases, DTypeAlias::mergeWith),
-    platformData = (platformData + other.platformData).distinct()
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DFunction.mergeWith(other: DFunction): DFunction = copy(
     parameters = merge(this.parameters + other.parameters, DParameter::mergeWith),
     receiver = receiver?.let { r -> other.receiver?.let { r.mergeWith(it) } ?: r } ?: other.receiver,
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    modifier = modifier.mergeWith(other.modifier),
-    platformData = (platformData + other.platformData).distinct(),
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    modifier = modifier + other.modifier,
+    sourceSets = sourceSets + other.sourceSets,
     generics = merge(generics + other.generics, DTypeParameter::mergeWith)
 ).mergeExtras(this, other)
 
 fun DProperty.mergeWith(other: DProperty): DProperty = copy(
     receiver = receiver?.let { r -> other.receiver?.let { r.mergeWith(it) } ?: r } ?: other.receiver,
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    modifier = modifier.mergeWith(other.modifier),
-    platformData = (platformData + other.platformData).distinct(),
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    modifier = modifier + other.modifier,
+    sourceSets = sourceSets + other.sourceSets,
     getter = getter?.let { g -> other.getter?.let { g.mergeWith(it) } ?: g } ?: other.getter,
     setter = setter?.let { s -> other.setter?.let { s.mergeWith(it) } ?: s } ?: other.setter,
     generics = merge(generics + other.generics, DTypeParameter::mergeWith)
 ).mergeExtras(this, other)
 
-fun DClasslike.setPlatformData(platformData: List<PlatformData>): DClasslike = when (this) {
-    is DClass -> copy(platformData = platformData)
-    is DEnum -> copy(platformData = platformData)
-    is DInterface -> copy(platformData = platformData)
-    is DObject -> copy(platformData = platformData)
-    is DAnnotation -> copy(platformData = platformData)
-    else -> throw IllegalStateException("${this::class.qualifiedName} ${this.name} cannot have platform set")
-}
-
 fun DClasslike.mergeWith(other: DClasslike): DClasslike = when {
     this is DClass && other is DClass -> mergeWith(other)
     this is DEnum && other is DEnum -> mergeWith(other)
@@ -158,18 +94,19 @@ fun DClass.mergeWith(other: DClass): DClass = copy(
     constructors = mergeExpectActual(
         constructors + other.constructors,
         DFunction::mergeWith
-    ) { copy(platformData = it) },
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
+    ),
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
     companion = companion?.let { c -> other.companion?.let { c.mergeWith(it) } ?: c } ?: other.companion,
     generics = merge(generics + other.generics, DTypeParameter::mergeWith),
-    modifier = modifier.mergeWith(other.modifier),
-    supertypes = supertypes.mergeWith(other.supertypes),
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    platformData = (platformData + other.platformData).distinct()
+    modifier = modifier + other.modifier,
+    supertypes = supertypes + other.supertypes,
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DEnum.mergeWith(other: DEnum): DEnum = copy(
@@ -177,78 +114,86 @@ fun DEnum.mergeWith(other: DEnum): DEnum = copy(
     constructors = mergeExpectActual(
         constructors + other.constructors,
         DFunction::mergeWith
-    ) { copy(platformData = it) },
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
+    ),
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
     companion = companion?.let { c -> other.companion?.let { c.mergeWith(it) } ?: c } ?: other.companion,
-    supertypes = supertypes.mergeWith(other.supertypes),
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    platformData = (platformData + other.platformData).distinct()
+    supertypes = supertypes + other.supertypes,
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DEnumEntry.mergeWith(other: DEnumEntry): DEnumEntry = copy(
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
-    documentation = documentation.mergeWith(other.documentation),
-    platformData = (platformData + other.platformData).distinct()
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DObject.mergeWith(other: DObject): DObject = copy(
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
-    supertypes = supertypes.mergeWith(other.supertypes),
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    platformData = (platformData + other.platformData).distinct()
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
+    supertypes = supertypes + other.supertypes,
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DInterface.mergeWith(other: DInterface): DInterface = copy(
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
     companion = companion?.let { c -> other.companion?.let { c.mergeWith(it) } ?: c } ?: other.companion,
     generics = merge(generics + other.generics, DTypeParameter::mergeWith),
-    supertypes = supertypes.mergeWith(other.supertypes),
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    platformData = (platformData + other.platformData).distinct()
+    supertypes = supertypes + other.supertypes,
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DAnnotation.mergeWith(other: DAnnotation): DAnnotation = copy(
     constructors = mergeExpectActual(
         constructors + other.constructors,
         DFunction::mergeWith
-    ) { copy(platformData = it) },
-    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith) { copy(platformData = it) },
-    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith) { copy(platformData = it) },
-    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith, DClasslike::setPlatformData),
+    ),
+    functions = mergeExpectActual(functions + other.functions, DFunction::mergeWith),
+    properties = mergeExpectActual(properties + other.properties, DProperty::mergeWith),
+    classlikes = mergeExpectActual(classlikes + other.classlikes, DClasslike::mergeWith),
     companion = companion?.let { c -> other.companion?.let { c.mergeWith(it) } ?: c } ?: other.companion,
-    documentation = documentation.mergeWith(other.documentation),
-    sources = sources.mergeWith(other.sources),
-    visibility = visibility.mergeWith(other.visibility),
-    platformData = (platformData + other.platformData).distinct()
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sources = sources+ other.sources,
+    visibility = visibility + other.visibility,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DParameter.mergeWith(other: DParameter): DParameter = copy(
-    documentation = documentation.mergeWith(other.documentation),
-    platformData = (platformData + other.platformData).distinct()
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DTypeParameter.mergeWith(other: DTypeParameter): DTypeParameter = copy(
-    documentation = documentation.mergeWith(other.documentation),
-    platformData = (platformData + other.platformData).distinct()
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
 
 fun DTypeAlias.mergeWith(other: DTypeAlias): DTypeAlias = copy(
-    documentation = documentation.mergeWith(other.documentation),
-    underlyingType = underlyingType.mergeWith(other.underlyingType),
-    visibility = visibility.mergeWith(other.visibility),
-    platformData = (platformData + other.platformData).distinct()
+    documentation = documentation + other.documentation,
+    expectPresentInSet = expectPresentInSet ?: other.expectPresentInSet,
+    underlyingType = underlyingType + other.underlyingType,
+    visibility = visibility + other.visibility,
+    sourceSets = sourceSets + other.sourceSets
 ).mergeExtras(this, other)
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/transformers/documentables/DocumentableVisibilityFilter.kt b/plugins/base/src/main/kotlin/transformers/documentables/DocumentableVisibilityFilter.kt
index c261d2dc..6fdce3a8 100644
--- a/plugins/base/src/main/kotlin/transformers/documentables/DocumentableVisibilityFilter.kt
+++ b/plugins/base/src/main/kotlin/transformers/documentables/DocumentableVisibilityFilter.kt
@@ -5,15 +5,14 @@ import org.jetbrains.dokka.model.*
 import org.jetbrains.dokka.model.DAnnotation
 import org.jetbrains.dokka.model.DEnum
 import org.jetbrains.dokka.model.DFunction
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.documentation.PreMergeDocumentableTransformer
 
-internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
+internal class DocumentableVisibilityFilter(val context: DokkaContext) : PreMergeDocumentableTransformer {
 
-    override fun invoke(modules: List<DModule>, context: DokkaContext): List<DModule> = modules.map { original ->
+    override fun invoke(modules: List<DModule>): List<DModule> = modules.map { original ->
         val packageOptions =
-            context.configuration.passesConfigurations.first { original.platformData.contains(it.platformData) }
+            context.configuration.passesConfigurations.first { original.sourceSets.contains(context.sourceSet(it)) }
                 .perPackageOptions
 
         DocumentableFilter(packageOptions).processModule(original)
@@ -36,7 +35,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                         original.name,
                         packages = packages,
                         documentation = original.documentation,
-                        platformData = original.platformData,
+                        sourceSets = original.sourceSets,
                         extra = original.extra
                     )
             }
@@ -69,7 +68,8 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                             classlikes,
                             it.typealiases,
                             it.documentation,
-                            it.platformData,
+                            it.expectPresentInSet,
+                            it.sourceSets,
                             it.extra
                         )
                     }
@@ -78,26 +78,25 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
             return Pair(packagesListChanged, filteredPackages)
         }
 
-        private fun <T : WithVisibility> alwaysTrue(a: T, p: PlatformData) = true
-        private fun <T : WithVisibility> alwaysFalse(a: T, p: PlatformData) = false
+        private fun <T : WithVisibility> alwaysTrue(a: T, p: SourceSetData) = true
+        private fun <T : WithVisibility> alwaysFalse(a: T, p: SourceSetData) = false
 
-        private fun WithVisibility.visibilityForPlatform(data: PlatformData): Visibility? =
-            visibility[data] ?: visibility.expect
+        private fun WithVisibility.visibilityForPlatform(data: SourceSetData): Visibility? = visibility[data]
 
         private fun <T> T.filterPlatforms(
-            additionalCondition: (T, PlatformData) -> Boolean = ::alwaysTrue,
-            alternativeCondition: (T, PlatformData) -> Boolean = ::alwaysFalse
+            additionalCondition: (T, SourceSetData) -> Boolean = ::alwaysTrue,
+            alternativeCondition: (T, SourceSetData) -> Boolean = ::alwaysFalse
         ) where T : Documentable, T : WithVisibility =
-            platformData.filter { d ->
+            sourceSets.filter { d ->
                 visibilityForPlatform(d)?.isAllowedInPackage(dri.packageName) == true &&
                         additionalCondition(this, d) ||
                         alternativeCondition(this, d)
             }
 
         private fun <T> List<T>.transform(
-            additionalCondition: (T, PlatformData) -> Boolean = ::alwaysTrue,
-            alternativeCondition: (T, PlatformData) -> Boolean = ::alwaysFalse,
-            recreate: (T, List<PlatformData>) -> T
+            additionalCondition: (T, SourceSetData) -> Boolean = ::alwaysTrue,
+            alternativeCondition: (T, SourceSetData) -> Boolean = ::alwaysFalse,
+            recreate: (T, List<SourceSetData>) -> T
         ): Pair<Boolean, List<T>> where T : Documentable, T : WithVisibility {
             var changed = false
             val values = mapNotNull { t ->
@@ -119,7 +118,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
 
         private fun filterFunctions(
             functions: List<DFunction>,
-            additionalCondition: (DFunction, PlatformData) -> Boolean = ::alwaysTrue
+            additionalCondition: (DFunction, SourceSetData) -> Boolean = ::alwaysTrue
         ) =
             functions.transform(additionalCondition) { original, filteredPlatforms ->
                 with(original) {
@@ -129,6 +128,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                         isConstructor,
                         parameters,
                         documentation.filtered(filteredPlatforms),
+                        expectPresentInSet.filtered(filteredPlatforms),
                         sources.filtered(filteredPlatforms),
                         visibility.filtered(filteredPlatforms),
                         type,
@@ -141,13 +141,13 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                 }
             }
 
-        private fun hasVisibleAccessorsForPlatform(property: DProperty, data: PlatformData) =
+        private fun hasVisibleAccessorsForPlatform(property: DProperty, data: SourceSetData) =
             property.getter?.visibilityForPlatform(data)?.isAllowedInPackage(property.dri.packageName) == true ||
                     property.setter?.visibilityForPlatform(data)?.isAllowedInPackage(property.dri.packageName) == true
 
         private fun filterProperties(
             properties: List<DProperty>,
-            additionalCondition: (DProperty, PlatformData) -> Boolean = ::alwaysTrue
+            additionalCondition: (DProperty, SourceSetData) -> Boolean = ::alwaysTrue
         ): Pair<Boolean, List<DProperty>> =
             properties.transform(additionalCondition, ::hasVisibleAccessorsForPlatform) { original, filteredPlatforms ->
                 with(original) {
@@ -155,6 +155,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                         dri,
                         name,
                         documentation.filtered(filteredPlatforms),
+                        expectPresentInSet.filtered(filteredPlatforms),
                         sources.filtered(filteredPlatforms),
                         visibility.filtered(filteredPlatforms),
                         type,
@@ -169,16 +170,17 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                 }
             }
 
-        private fun filterEnumEntries(entries: List<DEnumEntry>, filteredPlatforms: List<PlatformData>) =
+        private fun filterEnumEntries(entries: List<DEnumEntry>, filteredPlatforms: List<SourceSetData>) =
             entries.mapNotNull { entry ->
-                if (filteredPlatforms.containsAll(entry.platformData)) entry
+                if (filteredPlatforms.containsAll(entry.sourceSets)) entry
                 else {
-                    val intersection = filteredPlatforms.intersect(entry.platformData).toList()
+                    val intersection = filteredPlatforms.intersect(entry.sourceSets).toList()
                     if (intersection.isEmpty()) null
                     else DEnumEntry(
                         entry.dri,
                         entry.name,
                         entry.documentation.filtered(intersection),
+                        entry.expectPresentInSet.filtered(filteredPlatforms),
                         filterFunctions(entry.functions) { _, data -> data in intersection }.second,
                         filterProperties(entry.properties) { _, data -> data in intersection }.second,
                         filterClasslikes(entry.classlikes) { _, data -> data in intersection }.second,
@@ -190,7 +192,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
 
         private fun filterClasslikes(
             classlikeList: List<DClasslike>,
-            additionalCondition: (DClasslike, PlatformData) -> Boolean = ::alwaysTrue
+            additionalCondition: (DClasslike, SourceSetData) -> Boolean = ::alwaysTrue
         ): Pair<Boolean, List<DClasslike>> {
             var classlikesListChanged = false
             val filteredClasslikes: List<DClasslike> = classlikeList.mapNotNull {
@@ -200,7 +202,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                         classlikesListChanged = true
                         null
                     } else {
-                        var modified = platformData.size != filteredPlatforms.size
+                        var modified = sourceSets.size != filteredPlatforms.size
                         val functions =
                             filterFunctions(functions) { _, data -> data in filteredPlatforms }.let { (listModified, list) ->
                                 modified = modified || listModified
@@ -246,6 +248,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                                 generics,
                                 supertypes.filtered(filteredPlatforms),
                                 documentation.filtered(filteredPlatforms),
+                                expectPresentInSet.filtered(filteredPlatforms),
                                 modifier,
                                 filteredPlatforms,
                                 extra
@@ -254,6 +257,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                                 name,
                                 dri,
                                 documentation.filtered(filteredPlatforms),
+                                expectPresentInSet.filtered(filteredPlatforms),
                                 sources.filtered(filteredPlatforms),
                                 functions,
                                 properties,
@@ -269,6 +273,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                                 name,
                                 enumEntries,
                                 documentation.filtered(filteredPlatforms),
+                                expectPresentInSet.filtered(filteredPlatforms),
                                 sources.filtered(filteredPlatforms),
                                 functions,
                                 properties,
@@ -284,6 +289,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                                 dri,
                                 name,
                                 documentation.filtered(filteredPlatforms),
+                                expectPresentInSet.filtered(filteredPlatforms),
                                 sources.filtered(filteredPlatforms),
                                 functions,
                                 properties,
@@ -299,6 +305,7 @@ internal object DocumentableVisibilityFilter : PreMergeDocumentableTransformer {
                                 name,
                                 dri,
                                 documentation.filtered(filteredPlatforms),
+                                expectPresentInSet.filtered(filteredPlatforms),
                                 sources.filtered(filteredPlatforms),
                                 functions,
                                 properties,
diff --git a/plugins/base/src/main/kotlin/transformers/documentables/InheritorsExtractorTransformer.kt b/plugins/base/src/main/kotlin/transformers/documentables/InheritorsExtractorTransformer.kt
index 9cc09d89..15ffc08a 100644
--- a/plugins/base/src/main/kotlin/transformers/documentables/InheritorsExtractorTransformer.kt
+++ b/plugins/base/src/main/kotlin/transformers/documentables/InheritorsExtractorTransformer.kt
@@ -4,7 +4,6 @@ import org.jetbrains.dokka.links.DRI
 import org.jetbrains.dokka.model.*
 import org.jetbrains.dokka.model.properties.ExtraProperty
 import org.jetbrains.dokka.model.properties.MergeStrategy
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.documentation.DocumentableTransformer
 
@@ -12,8 +11,8 @@ class InheritorsExtractorTransformer : DocumentableTransformer {
     override fun invoke(original: DModule, context: DokkaContext): DModule =
         original.generateInheritanceMap().let { inheritanceMap -> original.appendInheritors(inheritanceMap) as DModule }
 
-    private fun <T : Documentable> T.appendInheritors(inheritanceMap: Map<PlatformData, Map<DRI, List<DRI>>>): Documentable =
-        InheritorsInfo(PlatformDependent(inheritanceMap.getForDRI(dri))).let { info ->
+    private fun <T : Documentable> T.appendInheritors(inheritanceMap: Map<SourceSetData, Map<DRI, List<DRI>>>): Documentable =
+        InheritorsInfo(inheritanceMap.getForDRI(dri)).let { info ->
             when (this) {
                 is DModule -> copy(packages = packages.map { it.appendInheritors(inheritanceMap) as DPackage })
                 is DPackage -> copy(classlikes = classlikes.map { it.appendInheritors(inheritanceMap) as DClasslike })
@@ -44,12 +43,12 @@ class InheritorsExtractorTransformer : DocumentableTransformer {
             }
         }
 
-    private fun InheritorsInfo.isNotEmpty() = this.value.allValues.fold(0) { acc, list -> acc + list.size } > 0
+    private fun InheritorsInfo.isNotEmpty() = this.value.values.fold(0) { acc, list -> acc + list.size } > 0
 
-    private fun Map<PlatformData, Map<DRI, List<DRI>>>.getForDRI(dri: DRI) =
-        PlatformDependent(map { (v, k) ->
+    private fun Map<SourceSetData, Map<DRI, List<DRI>>>.getForDRI(dri: DRI) =
+        map { (v, k) ->
             v to k[dri]
-        }.map { (k, v) -> k to v.orEmpty() }.toMap())
+        }.map { (k, v) -> k to v.orEmpty() }.toMap()
 
     private fun DModule.generateInheritanceMap() =
         getInheritanceEntriesRec().filterNot { it.second.isEmpty() }.groupBy({ it.first }) { it.second }
@@ -58,26 +57,24 @@ class InheritorsExtractorTransformer : DocumentableTransformer {
                     .groupBy({ it.first }) { it.second }.map { (k2, v2) -> k2 to v2.flatten() }.toMap()
             }.filter { it.second.values.isNotEmpty() }.toMap()
 
-    private fun <T : Documentable> T.getInheritanceEntriesRec(): List<Pair<PlatformData, List<Pair<DRI, DRI>>>> =
+    private fun <T : Documentable> T.getInheritanceEntriesRec(): List<Pair<SourceSetData, List<Pair<DRI, DRI>>>> =
         this.toInheritanceEntries() + children.flatMap { it.getInheritanceEntriesRec() }
 
     private fun <T : Documentable> T.toInheritanceEntries() =
         (this as? WithSupertypes)?.let {
-            it.supertypes.map.map { (k, v) -> k to v.map { it to dri } }
+            it.supertypes.map { (k, v) -> k to v.map { it to dri } }
         }.orEmpty()
 
 }
 
-class InheritorsInfo(val value: PlatformDependent<List<DRI>>) : ExtraProperty<Documentable> {
+class InheritorsInfo(val value: SourceSetDependent<List<DRI>>) : ExtraProperty<Documentable> {
     companion object : ExtraProperty.Key<Documentable, InheritorsInfo> {
         override fun mergeStrategyFor(left: InheritorsInfo, right: InheritorsInfo): MergeStrategy<Documentable> =
             MergeStrategy.Replace(
                 InheritorsInfo(
-                    PlatformDependent(
-                        (left.value.map.entries.toList() + right.value.map.entries.toList())
+                        (left.value.entries.toList() + right.value.entries.toList())
                             .groupBy({ it.key }) { it.value }
                             .map { (k, v) -> k to v.flatten() }.toMap()
-                    )
                 )
             )
     }
diff --git a/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt b/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt
index b69c43d3..a886494e 100644
--- a/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt
+++ b/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt
@@ -1,9 +1,9 @@
 package org.jetbrains.dokka.base.transformers.documentables
 
 import org.jetbrains.dokka.model.DModule
-import org.jetbrains.dokka.model.PlatformDependent
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.model.doc.DocumentationNode
-import org.jetbrains.dokka.pages.PlatformData
+import org.jetbrains.dokka.model.sourceSet
 import org.jetbrains.dokka.parsers.MarkdownParser
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.documentation.PreMergeDocumentableTransformer
@@ -12,14 +12,14 @@ import java.nio.file.Files
 import java.nio.file.Paths
 
 
-internal object ModuleAndPackageDocumentationTransformer : PreMergeDocumentableTransformer {
+internal class ModuleAndPackageDocumentationTransformer(val context: DokkaContext) : PreMergeDocumentableTransformer {
 
-    override fun invoke(original: List<DModule>, context: DokkaContext): List<DModule> {
+    override fun invoke(original: List<DModule>): List<DModule> {
 
         val modulesAndPackagesDocumentation =
             context.configuration.passesConfigurations
                 .map {
-                    Pair(it.moduleName, it.platformData) to
+                    Pair(it.moduleName, context.sourceSet(it)) to
                             it.includes.map { Paths.get(it) }
                                 .also {
                                     it.forEach {
@@ -50,10 +50,10 @@ internal object ModuleAndPackageDocumentationTransformer : PreMergeDocumentableT
         return original.map { module ->
 
             val moduleDocumentation =
-                module.platformData.mapNotNull { pd ->
+                module.sourceSets.mapNotNull { pd ->
                     val doc = modulesAndPackagesDocumentation[Pair(module.name, pd)]
                     val facade = context.platforms[pd]?.facade
-                        ?: return@mapNotNull null.also { context.logger.warn("Could not find platform data for ${pd.name}") }
+                        ?: return@mapNotNull null.also { context.logger.warn("Could not find platform data for ${pd.moduleName}/${pd.sourceSetName}") }
                     try {
                         doc?.get("Module")?.get(module.name)?.run {
                             pd to MarkdownParser(
@@ -68,15 +68,15 @@ internal object ModuleAndPackageDocumentationTransformer : PreMergeDocumentableT
                     }
                 }.toMap()
 
-            val packagesDocumentation = module.packages.map { dPackage ->
-                dPackage.name to dPackage.platformData.mapNotNull { platformData ->
-                    val doc = modulesAndPackagesDocumentation[Pair(module.name, platformData)]
-                    val facade = context.platforms[platformData]?.facade
-                        ?: return@mapNotNull null.also { context.logger.warn("Could not find platform data for ${platformData.name}") }
-                    val descriptor = facade.resolveSession.getPackageFragment(FqName(dPackage.name))
-                        ?: return@mapNotNull null.also { context.logger.warn("Could not find descriptor for ${dPackage.name}") }
-                    doc?.get("Package")?.get(dPackage.name)?.run {
-                        platformData to MarkdownParser(
+            val packagesDocumentation = module.packages.map {
+                it.name to it.sourceSets.mapNotNull { pd ->
+                    val doc = modulesAndPackagesDocumentation[Pair(module.name, pd)]
+                    val facade = context.platforms[pd]?.facade
+                        ?: return@mapNotNull null.also { context.logger.warn("Could not find platform data for ${pd.moduleName}/${pd.sourceSetName}") }
+                    val descriptor = facade.resolveSession.getPackageFragment(FqName(it.name))
+                        ?: return@mapNotNull null.also { context.logger.warn("Could not find descriptor for $") }
+                    doc?.get("Package")?.get(it.name)?.run {
+                        pd to MarkdownParser(
                             facade,
                             descriptor,
                             context.logger
@@ -86,13 +86,11 @@ internal object ModuleAndPackageDocumentationTransformer : PreMergeDocumentableT
             }.toMap()
 
             module.copy(
-                documentation = module.documentation.let { mergeDocumentation(it.map, moduleDocumentation) },
+                documentation = mergeDocumentation(module.documentation, moduleDocumentation),
                 packages = module.packages.map {
                     val packageDocumentation = packagesDocumentation[it.name]
                     if (packageDocumentation != null && packageDocumentation.isNotEmpty())
-                        it.copy(documentation = it.documentation.let { value ->
-                            mergeDocumentation(value.map, packageDocumentation)
-                        })
+                        it.copy(documentation = mergeDocumentation(it.documentation, packageDocumentation))
                     else
                         it
                 }
@@ -100,10 +98,10 @@ internal object ModuleAndPackageDocumentationTransformer : PreMergeDocumentableT
         }
     }
 
-    private fun mergeDocumentation(origin: Map<PlatformData, DocumentationNode>, new: Map<PlatformData, DocumentationNode>) = PlatformDependent(
+    private fun mergeDocumentation(origin: Map<SourceSetData, DocumentationNode>, new: Map<SourceSetData, DocumentationNode>) =
         (origin.asSequence() + new.asSequence())
             .distinct()
             .groupBy({ it.key }, { it.value })
             .mapValues { (_, values) -> DocumentationNode(values.flatMap { it.children }) }
-    )
+
 }
diff --git a/plugins/base/src/main/kotlin/transformers/pages/comments/CommentsToContentConverter.kt b/plugins/base/src/main/kotlin/transformers/pages/comments/CommentsToContentConverter.kt
index 778e0498..cb74441e 100644
--- a/plugins/base/src/main/kotlin/transformers/pages/comments/CommentsToContentConverter.kt
+++ b/plugins/base/src/main/kotlin/transformers/pages/comments/CommentsToContentConverter.kt
@@ -1,5 +1,6 @@
 package org.jetbrains.dokka.base.transformers.pages.comments
 
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.model.doc.DocTag
 import org.jetbrains.dokka.model.properties.PropertyContainer
 import org.jetbrains.dokka.pages.*
@@ -8,7 +9,7 @@ interface CommentsToContentConverter {
     fun buildContent(
         docTag: DocTag,
         dci: DCI,
-        platforms: Set<PlatformData>,
+        platforms: Set<SourceSetData>,
         styles: Set<Style> = emptySet(),
         extras: PropertyContainer<ContentNode> = PropertyContainer.empty()
     ): List<ContentNode>
diff --git a/plugins/base/src/main/kotlin/transformers/pages/comments/DocTagToContentConverter.kt b/plugins/base/src/main/kotlin/transformers/pages/comments/DocTagToContentConverter.kt
index 4e65bae9..85391549 100644
--- a/plugins/base/src/main/kotlin/transformers/pages/comments/DocTagToContentConverter.kt
+++ b/plugins/base/src/main/kotlin/transformers/pages/comments/DocTagToContentConverter.kt
@@ -1,5 +1,6 @@
 package org.jetbrains.dokka.base.transformers.pages.comments
 
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.model.doc.*
 import org.jetbrains.dokka.model.properties.PropertyContainer
 import org.jetbrains.dokka.pages.*
@@ -8,19 +9,19 @@ object DocTagToContentConverter : CommentsToContentConverter {
     override fun buildContent(
         docTag: DocTag,
         dci: DCI,
-        platforms: Set<PlatformData>,
+        sourceSets: Set<SourceSetData>,
         styles: Set<Style>,
         extra: PropertyContainer<ContentNode>
     ): List<ContentNode> {
 
         fun buildChildren(docTag: DocTag, newStyles: Set<Style> = emptySet(), newExtras: SimpleAttr? = null) =
             docTag.children.flatMap {
-                buildContent(it, dci, platforms, styles + newStyles, newExtras?.let { extra + it } ?: extra)
+                buildContent(it, dci, sourceSets, styles + newStyles, newExtras?.let { extra + it } ?: extra)
             }
 
         fun buildTableRows(rows: List<DocTag>, newStyle: Style): List<ContentGroup> =
             rows.flatMap {
-                buildContent(it, dci, platforms, styles + newStyle, extra) as List<ContentGroup>
+                buildContent(it, dci, sourceSets, styles + newStyle, extra) as List<ContentGroup>
             }
 
         fun buildHeader(level: Int) =
@@ -29,7 +30,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     buildChildren(docTag),
                     level,
                     dci,
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
@@ -40,7 +41,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     buildChildren(docTag),
                     ordered,
                     dci,
-                    platforms,
+                    sourceSets,
                     styles,
                     ((PropertyContainer.empty<ContentNode>()) + SimpleAttr("start", start.toString()))
                 )
@@ -48,7 +49,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
 
         fun buildNewLine() = listOf(
             ContentBreakLine(
-                platforms
+                sourceSets
             )
         )
 
@@ -71,7 +72,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     buildChildren(docTag),
                     docTag.params.get("href")!!,
                     dci,
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
@@ -83,7 +84,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                         setOf(docTag.dri),
                         ContentKind.Symbol
                     ),
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
@@ -92,7 +93,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     buildChildren(docTag),
                     "",
                     dci,
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
@@ -101,7 +102,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     buildChildren(docTag),
                     "",
                     dci,
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
@@ -110,7 +111,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     address = docTag.params["href"]!!,
                     altText = docTag.params["alt"],
                     dci = dci,
-                    platforms = platforms,
+                    sourceSets = sourceSets,
                     style = styles,
                     extra = extra
                 )
@@ -119,7 +120,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                 ContentText(
                     "",
                     dci,
-                    platforms,
+                    sourceSets,
                     setOf()
                 )
             )
@@ -127,7 +128,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                 ContentText(
                     docTag.body,
                     dci,
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
@@ -137,7 +138,7 @@ object DocTagToContentConverter : CommentsToContentConverter {
                     buildTableRows(docTag.children.filterIsInstance<Th>(), CommentTable),
                     buildTableRows(docTag.children.filterIsInstance<Tr>(), CommentTable),
                     dci,
-                    platforms,
+                    sourceSets,
                     styles + CommentTable
                 )
             )
@@ -145,10 +146,10 @@ object DocTagToContentConverter : CommentsToContentConverter {
             is Tr -> listOf(
                 ContentGroup(
                     docTag.children.map {
-                        ContentGroup(buildChildren(it), dci, platforms, styles, extra)
+                        ContentGroup(buildChildren(it), dci, sourceSets, styles, extra)
                     },
                     dci,
-                    platforms,
+                    sourceSets,
                     styles
                 )
             )
diff --git a/plugins/base/src/main/kotlin/transformers/pages/merger/SameMethodNamePageMergerStrategy.kt b/plugins/base/src/main/kotlin/transformers/pages/merger/SameMethodNamePageMergerStrategy.kt
index fb904f47..31e79555 100644
--- a/plugins/base/src/main/kotlin/transformers/pages/merger/SameMethodNamePageMergerStrategy.kt
+++ b/plugins/base/src/main/kotlin/transformers/pages/merger/SameMethodNamePageMergerStrategy.kt
@@ -32,6 +32,6 @@ object SameMethodNamePageMergerStrategy : PageMergerStrategy {
     }
 
     fun asGroup(dci: DCI, nodes: List<ContentNode>): ContentGroup =
-        nodes.first().let { ContentGroup(nodes, dci, it.platforms, it.style, it.extra) }
+        nodes.first().let { ContentGroup(nodes, dci, it.sourceSets, it.style, it.extra) }
 
 }
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/transformers/pages/samples/SamplesTransformer.kt b/plugins/base/src/main/kotlin/transformers/pages/samples/SamplesTransformer.kt
index 78fc4d33..9b04af40 100644
--- a/plugins/base/src/main/kotlin/transformers/pages/samples/SamplesTransformer.kt
+++ b/plugins/base/src/main/kotlin/transformers/pages/samples/SamplesTransformer.kt
@@ -8,8 +8,10 @@ import org.jetbrains.dokka.analysis.AnalysisEnvironment
 import org.jetbrains.dokka.analysis.DokkaResolutionFacade
 import org.jetbrains.dokka.base.renderers.platforms
 import org.jetbrains.dokka.links.DRI
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.model.doc.Sample
 import org.jetbrains.dokka.model.properties.PropertyContainer
+import org.jetbrains.dokka.model.sourceSet
 import org.jetbrains.dokka.pages.*
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.pages.PageTransformer
@@ -31,16 +33,16 @@ abstract class SamplesTransformer(val context: DokkaContext) : PageTransformer {
         val analysis = setUpAnalysis(context)
 
         return input.transformContentPagesTree { page ->
-            page.documentable?.documentation?.allEntries?.fold(page) { acc, entry ->
-                entry.second.children.filterIsInstance<Sample>().fold(acc) { acc, sample ->
-                    acc.modified(content = acc.content.addSample(page, entry.first, sample.name, analysis))
+            page.documentable?.documentation?.entries?.fold(page) { acc, entry ->
+                entry.value.children.filterIsInstance<Sample>().fold(acc) { acc, sample ->
+                    acc.modified(content = acc.content.addSample(page, entry.key, sample.name, analysis))
                 }
             } ?: page
         }
     }
 
     private fun setUpAnalysis(context: DokkaContext) = context.configuration.passesConfigurations.map {
-        it.platformData to AnalysisEnvironment(DokkaGenerator.DokkaMessageCollector(context.logger), it.analysisPlatform).run {
+        context.sourceSet(it) to AnalysisEnvironment(DokkaGenerator.DokkaMessageCollector(context.logger), it.analysisPlatform).run {
             if (analysisPlatform == Platform.jvm) {
                 addClasspath(PathUtil.getJdkClassesRootsFromCurrentJre())
             }
@@ -56,12 +58,9 @@ abstract class SamplesTransformer(val context: DokkaContext) : PageTransformer {
         }
     }.toMap()
 
-    private fun ContentNode.addSample(contentPage: ContentPage, platform: PlatformData?, fqName: String, analysis: Map<PlatformData, EnvironmentAndFacade>): ContentNode {
-        val facade = if(platform == null) {
-            analysis.entries.find { it.key.platformType.name == "common" }?.value
-        } else {
-            analysis[platform]
-        }?.facade ?: return this.also { context.logger.warn("Cannot resolve facade for platform ${platform?.name ?: "expect"}") }
+    private fun ContentNode.addSample(contentPage: ContentPage, platform: SourceSetData, fqName: String, analysis: Map<SourceSetData, EnvironmentAndFacade>): ContentNode {
+        val facade = analysis[platform]?.facade ?:
+            return this.also { context.logger.warn("Cannot resolve facade for platform ${platform.moduleName}")}
         val psiElement = fqNameToPsiElement(facade, fqName) ?:
             return this.also { context.logger.warn("Cannot find PsiElement corresponding to $fqName") }
         val imports = processImports(psiElement) // TODO: Process somehow imports. Maybe just attach them at the top of each body
@@ -96,13 +95,13 @@ abstract class SamplesTransformer(val context: DokkaContext) : PageTransformer {
         return DescriptorToSourceUtils.descriptorToDeclaration(symbol)
     }
 
-    private fun contentCode(platforms: List<PlatformData>, dri: Set<DRI>, content: String, language: String) =
+    private fun contentCode(sourceSets: List<SourceSetData>, dri: Set<DRI>, content: String, language: String) =
         ContentCode(
             children = listOf(
                 ContentText(
                     text = content,
                     dci = DCI(dri, ContentKind.BriefComment),
-                    platforms = platforms.toSet(),
+                    sourceSets = sourceSets.toSet(),
                     style = emptySet(),
                     extra = PropertyContainer.empty()
                 )
@@ -110,7 +109,7 @@ abstract class SamplesTransformer(val context: DokkaContext) : PageTransformer {
             language = language,
             extra = PropertyContainer.empty(),
             dci = DCI(dri, ContentKind.Source),
-            platforms = platforms.toSet(),
+            sourceSets = sourceSets.toSet(),
             style = emptySet()
         )
 }
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/transformers/pages/sourcelinks/SourceLinksTransformer.kt b/plugins/base/src/main/kotlin/transformers/pages/sourcelinks/SourceLinksTransformer.kt
index fa73e757..876326d1 100644
--- a/plugins/base/src/main/kotlin/transformers/pages/sourcelinks/SourceLinksTransformer.kt
+++ b/plugins/base/src/main/kotlin/transformers/pages/sourcelinks/SourceLinksTransformer.kt
@@ -5,9 +5,12 @@ import com.intellij.psi.PsiDocumentManager
 import org.jetbrains.dokka.DokkaConfiguration
 import org.jetbrains.dokka.base.translators.documentables.PageContentBuilder
 import org.jetbrains.dokka.model.DescriptorDocumentableSource
+import org.jetbrains.dokka.model.SourceSetData
 import org.jetbrains.dokka.model.DocumentableSource
 import org.jetbrains.dokka.model.PsiDocumentableSource
 import org.jetbrains.dokka.model.WithExpectActual
+import org.jetbrains.dokka.model.properties.PropertyContainer
+import org.jetbrains.dokka.model.sourceSet
 import org.jetbrains.dokka.pages.*
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.pages.PageTransformer
@@ -30,11 +33,11 @@ class SourceLinksTransformer(val context: DokkaContext, val builder: PageContent
         }
 
     private fun getSourceLinks() = context.configuration.passesConfigurations
-        .flatMap { it.sourceLinks.map { sl -> SourceLink(sl, it.platformData) } }
+        .flatMap { it.sourceLinks.map { sl -> SourceLink(sl, context.sourceSetCache.getSourceSet(it)) } }
 
     private fun resolveSources(documentable: WithExpectActual) = documentable.sources
         .mapNotNull { entry ->
-            getSourceLinks().find { entry.value.path.contains(it.path) && it.platformData == entry.key }?.let {
+            getSourceLinks().find { entry.value.path.contains(it.path) && it.sourceSetData == entry.key }?.let {
                 Pair(
                     entry.key,
                     entry.value.toLink(it)
@@ -42,7 +45,7 @@ class SourceLinksTransformer(val context: DokkaContext, val builder: PageContent
             }
         }
 
-    private fun ContentPage.addSourcesContent(sources: List<Pair<PlatformData, String>>) = builder
+    private fun ContentPage.addSourcesContent(sources: List<Pair<SourceSetData, String>>) = builder
         .buildSourcesContent(this, sources)
         .let {
             this.modified(
@@ -52,10 +55,10 @@ class SourceLinksTransformer(val context: DokkaContext, val builder: PageContent
 
     private fun PageContentBuilder.buildSourcesContent(
         node: ContentPage,
-        sources: List<Pair<PlatformData, String>>
+        sources: List<Pair<SourceSetData, String>>
     ) = contentFor(
         node.dri.first(),
-        node.documentable!!.platformData.toSet()
+        node.documentable!!.sourceSets.toSet()
     ) {
         header(2) { text("Sources") }
         +ContentTable(
@@ -66,7 +69,7 @@ class SourceLinksTransformer(val context: DokkaContext, val builder: PageContent
                 }
             },
             DCI(node.dri, ContentKind.Source),
-            node.documentable!!.platformData.toSet(),
+            node.documentable!!.sourceSets.toSet(),
             style = emptySet()
         )
     }
@@ -94,7 +97,7 @@ class SourceLinksTransformer(val context: DokkaContext, val builder: PageContent
             else -> ContentGroup(
                 children = listOf(this, table),
                 extra = this.extra,
-                platforms = this.platforms,
+                sourceSets = this.sourceSets,
                 dci = this.dci,
                 style = this.style
             )
@@ -107,8 +110,8 @@ class SourceLinksTransformer(val context: DokkaContext, val builder: PageContent
     }
 }
 
-data class SourceLink(val path: String, val url: String, val lineSuffix: String?, val platformData: PlatformData) {
-    constructor(sourceLinkDefinition: DokkaConfiguration.SourceLinkDefinition, platformData: PlatformData) : this(
-        sourceLinkDefinition.path, sourceLinkDefinition.url, sourceLinkDefinition.lineSuffix, platformData
+data class SourceLink(val path: String, val url: String, val lineSuffix: String?, val sourceSetData: SourceSetData) {
+    constructor(sourceLinkDefinition: DokkaConfiguration.SourceLinkDefinition, sourceSetData: SourceSetData) : this(
+        sourceLinkDefinition.path, sourceLinkDefinition.url, sourceLinkDefinition.lineSuffix, sourceSetData
     )
 }
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/translators/descriptors/DefaultDescriptorToDocumentableTranslator.kt b/plugins/base/src/main/kotlin/translators/descriptors/DefaultDescriptorToDocumentableTranslator.kt
index 128b9bd4..7cc96a24 100644
--- a/plugins/base/src/main/kotlin/translators/descriptors/DefaultDescriptorToDocumentableTranslator.kt
+++ b/plugins/base/src/main/kotlin/translators/descriptors/DefaultDescriptorToDocumentableTranslator.kt
@@ -7,7 +7,6 @@ import org.jetbrains.dokka.links.withClass
 import org.jetbrains.dokka.model.*
 import org.jetbrains.dokka.model.doc.*
 import org.jetbrains.dokka.model.properties.PropertyContainer
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.parsers.MarkdownParser
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.utilities.DokkaLogger
@@ -20,6 +19,7 @@ import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.descriptors.impl.DeclarationDescriptorVisitorEmptyBodies
 import org.jetbrains.kotlin.idea.kdoc.findKDoc
+import org.jetbrains.kotlin.load.kotlin.toSourceElement
 import org.jetbrains.kotlin.psi.KtExpression
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.calls.components.isVararg
@@ -37,35 +37,35 @@ import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 object DefaultDescriptorToDocumentableTranslator : SourceToDocumentableTranslator {
 
-    override fun invoke(platformData: PlatformData, context: DokkaContext): DModule {
+    override fun invoke(sourceSet: SourceSetData, context: DokkaContext): DModule {
 
-        val (environment, facade) = context.platforms.getValue(platformData)
+        val (environment, facade) = context.platforms.getValue(sourceSet)
         val packageFragments = environment.getSourceFiles().asSequence()
             .map { it.packageFqName }
             .distinct()
             .mapNotNull { facade.resolveSession.getPackageFragment(it) }
             .toList()
 
-        return DokkaDescriptorVisitor(platformData, context.platforms.getValue(platformData).facade, context.logger).run {
+        return DokkaDescriptorVisitor(sourceSet, context.platforms.getValue(sourceSet).facade, context.logger).run {
             packageFragments.mapNotNull { it.safeAs<PackageFragmentDescriptor>() }.map {
                 visitPackageFragmentDescriptor(
                     it,
-                    DRIWithPlatformInfo(DRI.topLevel, PlatformDependent.empty())
+                    DRIWithPlatformInfo(DRI.topLevel, emptyMap())
                 )
             }
-        }.let { DModule(platformData.name, it, PlatformDependent.empty(), listOf(platformData)) }
+        }.let { DModule(sourceSet.moduleName, it, emptyMap(), null, listOf(sourceSet)) }
     }
 }
 
 data class DRIWithPlatformInfo(
     val dri: DRI,
-    val actual: PlatformDependent<DocumentableSource>
+    val actual: SourceSetDependent<DocumentableSource>
 )
 
-fun DRI.withEmptyInfo() = DRIWithPlatformInfo(this, PlatformDependent.empty())
+fun DRI.withEmptyInfo() = DRIWithPlatformInfo(this, emptyMap())
 
 private class DokkaDescriptorVisitor(
-    private val platformData: PlatformData,
+    private val sourceSet: SourceSetData,
     private val resolutionFacade: DokkaResolutionFacade,
     private val logger: DokkaLogger
 ) : DeclarationDescriptorVisitorEmptyBodies<Documentable, DRIWithPlatformInfo>() {
@@ -73,23 +73,30 @@ private class DokkaDescriptorVisitor(
         throw IllegalStateException("${javaClass.simpleName} should never enter ${descriptor.javaClass.simpleName}")
     }
 
+    private fun Collection<DeclarationDescriptor>.filterDescriptorsInSourceSet() = filter {
+            val path = it.toSourceElement.containingFile.toString()
+            path.isNotBlank() && sourceSet.sourceRoots.any { root -> path.startsWith(root.path) }
+    }
+
+    private fun <T> T.toSourceSetDependent() = mapOf(sourceSet to this)
+
     override fun visitPackageFragmentDescriptor(
         descriptor: PackageFragmentDescriptor,
         parent: DRIWithPlatformInfo
     ): DPackage {
-        val name = descriptor.fqName.asString().takeUnless { it.isBlank() }
-            ?: "[" + platformData.targets.joinToString(" ") + " root]"// TODO: error-prone, find a better way to do it
+        val name = descriptor.fqName.asString().takeUnless { it.isBlank() } ?:
+            "[${sourceSet.sourceSetName} root]"// TODO: error-prone, find a better way to do it
         val driWithPlatform = DRI(packageName = name).withEmptyInfo()
         val scope = descriptor.getMemberScope()
 
         return DPackage(
             dri = driWithPlatform.dri,
-            functions = scope.functions(driWithPlatform),
-            properties = scope.properties(driWithPlatform),
-            classlikes = scope.classlikes(driWithPlatform),
-            typealiases = scope.typealiases(driWithPlatform),
-            documentation = descriptor.resolveDescriptorData(platformData),
-            platformData = listOf(platformData)
+            functions = scope.functions(driWithPlatform, true),
+            properties = scope.properties(driWithPlatform, true),
+            classlikes = scope.classlikes(driWithPlatform, true),
+            typealiases = scope.typealiases(driWithPlatform, true),
+            documentation = descriptor.resolveDescriptorData(),
+            sourceSets = listOf(sourceSet)
         )
     }
 
@@ -106,7 +113,7 @@ private class DokkaDescriptorVisitor(
         val driWithPlatform = parent.dri.withClass(descriptor.name.asString()).withEmptyInfo()
         val scope = descriptor.unsubstitutedMemberScope
         val isExpect = descriptor.isExpect
-        val info = descriptor.resolveClassDescriptionData(if (!isExpect) platformData else null)
+        val info = descriptor.resolveClassDescriptionData()
 
 
         return DInterface(
@@ -116,14 +123,13 @@ private class DokkaDescriptorVisitor(
             properties = scope.properties(driWithPlatform),
             classlikes = scope.classlikes(driWithPlatform),
             sources = descriptor.createSources(),
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            supertypes = if (isExpect) PlatformDependent.expectFrom(info.supertypes)
-            else PlatformDependent.from(platformData, info.supertypes),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            supertypes = info.supertypes.toSourceSetDependent(),
             documentation = info.docs,
             generics = descriptor.typeConstructor.parameters.map { it.toTypeParameter() },
             companion = descriptor.companion(driWithPlatform),
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
     }
@@ -132,7 +138,7 @@ private class DokkaDescriptorVisitor(
         val driWithPlatform = parent.dri.withClass(descriptor.name.asString()).withEmptyInfo()
         val scope = descriptor.unsubstitutedMemberScope
         val isExpect = descriptor.isExpect
-        val info = descriptor.resolveClassDescriptionData(if (!isExpect) platformData else null)
+        val info = descriptor.resolveClassDescriptionData()
 
 
         return DObject(
@@ -142,12 +148,11 @@ private class DokkaDescriptorVisitor(
             properties = scope.properties(driWithPlatform),
             classlikes = scope.classlikes(driWithPlatform),
             sources = descriptor.createSources(),
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            supertypes = if (isExpect) PlatformDependent.expectFrom(info.supertypes)
-            else PlatformDependent.from(platformData, info.supertypes),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            supertypes = info.supertypes.toSourceSetDependent(),
             documentation = info.docs,
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
     }
@@ -156,7 +161,7 @@ private class DokkaDescriptorVisitor(
         val driWithPlatform = parent.dri.withClass(descriptor.name.asString()).withEmptyInfo()
         val scope = descriptor.unsubstitutedMemberScope
         val isExpect = descriptor.isExpect
-        val info = descriptor.resolveClassDescriptionData(if (!isExpect) platformData else null)
+        val info = descriptor.resolveClassDescriptionData()
 
         return DEnum(
             dri = driWithPlatform.dri,
@@ -167,13 +172,12 @@ private class DokkaDescriptorVisitor(
             properties = scope.properties(driWithPlatform),
             classlikes = scope.classlikes(driWithPlatform),
             sources = descriptor.createSources(),
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            supertypes = if (isExpect) PlatformDependent.expectFrom(info.supertypes)
-            else PlatformDependent.from(platformData, info.supertypes),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            supertypes = info.supertypes.toSourceSetDependent(),
             documentation = info.docs,
             companion = descriptor.companion(driWithPlatform),
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
     }
@@ -186,11 +190,12 @@ private class DokkaDescriptorVisitor(
         return DEnumEntry(
             dri = driWithPlatform.dri,
             name = descriptor.name.asString(),
-            documentation = descriptor.resolveDescriptorData(if (!isExpect) platformData else null),
+            documentation = descriptor.resolveDescriptorData(),
             classlikes = scope.classlikes(driWithPlatform),
             functions = scope.functions(driWithPlatform),
             properties = scope.properties(driWithPlatform),
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
     }
@@ -202,14 +207,15 @@ private class DokkaDescriptorVisitor(
         return DAnnotation(
             dri = driWithPlatform.dri,
             name = descriptor.name.asString(),
-            documentation = descriptor.resolveDescriptorData(platformData),
+            documentation = descriptor.resolveDescriptorData(),
             classlikes = scope.classlikes(driWithPlatform),
             functions = scope.functions(driWithPlatform),
             properties = scope.properties(driWithPlatform),
-            platformData = listOf(platformData),
+            expectPresentInSet = null,
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations()),
             companion = descriptor.companionObjectDescriptor?.let { objectDescriptor(it, driWithPlatform) },
-            visibility = PlatformDependent(mapOf(platformData to descriptor.visibility.toDokkaVisibility())),
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
             constructors = descriptor.constructors.map { visitConstructorDescriptor(it, driWithPlatform) },
             sources = descriptor.createSources()
         )
@@ -219,7 +225,7 @@ private class DokkaDescriptorVisitor(
         val driWithPlatform = parent.dri.withClass(descriptor.name.asString()).withEmptyInfo()
         val scope = descriptor.unsubstitutedMemberScope
         val isExpect = descriptor.isExpect
-        val info = descriptor.resolveClassDescriptionData(if (!isExpect) platformData else null)
+        val info = descriptor.resolveClassDescriptionData()
         val actual = descriptor.createSources()
 
         return DClass(
@@ -229,23 +235,21 @@ private class DokkaDescriptorVisitor(
                 visitConstructorDescriptor(
                     it,
                     if (it.isPrimary) DRIWithPlatformInfo(driWithPlatform.dri, actual)
-                    else DRIWithPlatformInfo(driWithPlatform.dri, PlatformDependent.empty())
+                    else DRIWithPlatformInfo(driWithPlatform.dri, emptyMap())
                 )
             },
             functions = scope.functions(driWithPlatform),
             properties = scope.properties(driWithPlatform),
             classlikes = scope.classlikes(driWithPlatform),
             sources = actual,
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            supertypes = if (isExpect) PlatformDependent.expectFrom(info.supertypes)
-            else PlatformDependent.from(platformData, info.supertypes),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            supertypes = info.supertypes.toSourceSetDependent(),
             generics = descriptor.typeConstructor.parameters.map { it.toTypeParameter() },
             documentation = info.docs,
-            modifier = if (isExpect) PlatformDependent.expectFrom(descriptor.modifier())
-            else PlatformDependent.from(platformData, descriptor.modifier()),
+            modifier =   descriptor.modifier().toSourceSetDependent(),
             companion = descriptor.companion(driWithPlatform),
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
     }
@@ -268,13 +272,12 @@ private class DokkaDescriptorVisitor(
             setter = descriptor.accessors.filterIsInstance<PropertySetterDescriptor>().singleOrNull()?.let {
                 visitPropertyAccessorDescriptor(it, descriptor, dri)
             },
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            documentation = descriptor.resolveDescriptorData(if (!isExpect) platformData else null),
-            modifier = if (isExpect) PlatformDependent.expectFrom(descriptor.modifier())
-            else PlatformDependent.from(platformData, descriptor.modifier()),
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            documentation = descriptor.resolveDescriptorData(),
+            modifier = descriptor.modifier().toSourceSetDependent(),
             type = descriptor.returnType!!.toBound(),
-            platformData = listOf(platformData),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
+            sourceSets = listOf(sourceSet),
             generics = descriptor.typeParameters.map { it.toTypeParameter() },
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
@@ -301,15 +304,14 @@ private class DokkaDescriptorVisitor(
             parameters = descriptor.valueParameters.mapIndexed { index, desc ->
                 parameter(index, desc, DRIWithPlatformInfo(dri, actual))
             },
+            expectPresentInSet = sourceSet.takeIf { isExpect },
             sources = actual,
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
             generics = descriptor.typeParameters.map { it.toTypeParameter() },
-            documentation = descriptor.resolveDescriptorData(if (!isExpect) platformData else null),
-            modifier = if (isExpect) PlatformDependent.expectFrom(descriptor.modifier())
-            else PlatformDependent.from(platformData, descriptor.modifier()),
+            documentation = descriptor.resolveDescriptorData(),
+            modifier = descriptor.modifier().toSourceSetDependent(),
             type = descriptor.returnType!!.toBound(),
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(
                 InheritedFunction(isInherited),
                 descriptor.additionalExtras(), descriptor.getAnnotations()
@@ -333,41 +335,27 @@ private class DokkaDescriptorVisitor(
                 parameter(index, desc, DRIWithPlatformInfo(dri, actual))
             },
             sources = actual,
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            documentation = descriptor.resolveDescriptorData(if (!isExpect) platformData else null).let {
+            expectPresentInSet = sourceSet.takeIf { isExpect },
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            documentation = descriptor.resolveDescriptorData().let { sourceSetDependent ->
                 if (descriptor.isPrimary) {
-                    it.copy(
-                        map = PlatformDependent.from(it.map.map {
-                            Pair(
-                                it.key,
-                                it.value.copy(children = (it.value.children.find { it is Constructor }?.root?.let { constructor ->
-                                    listOf(
-                                        Description(constructor)
-                                    )
-                                } ?: emptyList<TagWrapper>()) + it.value.children.filterIsInstance<Param>())
-                            )
-                        }),
-                        expect = it.expect?.copy(children = (it.expect?.children?.find { it is Constructor }?.root?.let { constructor ->
-                            listOf(
-                                Description(constructor)
-                            )
-                        } ?: emptyList<TagWrapper>()) + it.expect!!.children.filterIsInstance<Param>())
-                    )
+                    sourceSetDependent.map { entry ->
+                        Pair(entry.key, entry.value.copy(children = (entry.value.children.find { it is Constructor }?.root?.let { constructor ->
+                            listOf( Description(constructor) )
+                        } ?: emptyList<TagWrapper>()) + entry.value.children.filterIsInstance<Param>()))
+                    }.toMap()
                 } else {
-                    it
+                    sourceSetDependent
                 }
             },
             type = descriptor.returnType.toBound(),
-            modifier = if (isExpect) PlatformDependent.expectFrom(descriptor.modifier())
-            else PlatformDependent.from(platformData, descriptor.modifier()),
+            modifier = descriptor.modifier().toSourceSetDependent(),
             generics = descriptor.typeParameters.map { it.toTypeParameter() },
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll<DFunction>(descriptor.additionalExtras(), descriptor.getAnnotations())
                 .let {
-                    if (descriptor.isPrimary) {
-                        it + PrimaryConstructorExtra
-                    } else it
+                    if(descriptor.isPrimary) { it + PrimaryConstructorExtra }
+                    else it
                 }
         )
     }
@@ -379,8 +367,9 @@ private class DokkaDescriptorVisitor(
         dri = parent.dri.copy(target = 0),
         name = null,
         type = descriptor.type.toBound(),
-        documentation = descriptor.resolveDescriptorData(platformData),
-        platformData = listOf(platformData)
+        expectPresentInSet = null,
+        documentation = descriptor.resolveDescriptorData(),
+        sourceSets = listOf(sourceSet)
     )
 
     private fun visitPropertyAccessorDescriptor(
@@ -397,8 +386,9 @@ private class DokkaDescriptorVisitor(
                 parent.copy(target = 1),
                 this.name.asString(),
                 type = this.type.toBound(),
-                documentation = descriptor.resolveDescriptorData(if (!isExpect) platformData else null),
-                platformData = listOf(platformData),
+                expectPresentInSet = sourceSet.takeIf { isExpect },
+                documentation = descriptor.resolveDescriptorData(),
+                sourceSets = listOf(sourceSet),
                 extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
             )
 
@@ -420,13 +410,12 @@ private class DokkaDescriptorVisitor(
             name,
             isConstructor = false,
             parameters = parameters,
-            visibility = if (isExpect) PlatformDependent.expectFrom(descriptor.visibility.toDokkaVisibility())
-            else PlatformDependent.from(platformData, descriptor.visibility.toDokkaVisibility()),
-            documentation = descriptor.resolveDescriptorData(if (!isExpect) platformData else null),
+            visibility = descriptor.visibility.toDokkaVisibility().toSourceSetDependent(),
+            documentation = descriptor.resolveDescriptorData(),
             type = descriptor.returnType!!.toBound(),
             generics = descriptor.typeParameters.map { it.toTypeParameter() },
-            modifier = if (isExpect) PlatformDependent.expectFrom(descriptor.modifier())
-            else PlatformDependent.from(platformData, descriptor.modifier()),
+            modifier = descriptor.modifier().toSourceSetDependent(),
+            expectPresentInSet = sourceSet.takeIf { isExpect },
             receiver = descriptor.extensionReceiverParameter?.let {
                 visitReceiverParameterDescriptor(
                     it,
@@ -434,7 +423,7 @@ private class DokkaDescriptorVisitor(
                 )
             },
             sources = descriptor.createSources(),
-            platformData = listOf(platformData),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(descriptor.additionalExtras(), descriptor.getAnnotations())
         )
     }
@@ -445,11 +434,11 @@ private class DokkaDescriptorVisitor(
                 dri = DRI.from(this),
                 name = name.asString(),
                 type = defaultType.toBound(),
-                underlyingType = PlatformDependent.from(platformData, underlyingType.toBound()),
-                visibility = if (isExpect) PlatformDependent.expectFrom(visibility.toDokkaVisibility())
-                else PlatformDependent.from(platformData, visibility.toDokkaVisibility()),
-                documentation = resolveDescriptorData(platformData),
-                platformData = listOf(platformData)
+                expectPresentInSet = null,
+                underlyingType = underlyingType.toBound().toSourceSetDependent(),
+                visibility = visibility.toDokkaVisibility().toSourceSetDependent(),
+                documentation = resolveDescriptorData(),
+                sourceSets = listOf(sourceSet)
             )
         }
 
@@ -458,8 +447,9 @@ private class DokkaDescriptorVisitor(
             dri = parent.dri.copy(target = index + 1),
             name = descriptor.name.asString(),
             type = descriptor.type.toBound(),
-            documentation = descriptor.resolveDescriptorData(platformData),
-            platformData = listOf(platformData),
+            expectPresentInSet = null,
+            documentation = descriptor.resolveDescriptorData(),
+            sourceSets = listOf(sourceSet),
             extra = PropertyContainer.withAll(
                 listOfNotNull(
                     descriptor.additionalExtras(),
@@ -468,18 +458,23 @@ private class DokkaDescriptorVisitor(
             )
         )
 
-    private fun MemberScope.functions(parent: DRIWithPlatformInfo): List<DFunction> =
-        getContributedDescriptors(DescriptorKindFilter.FUNCTIONS) { true }
+    private fun MemberScope.getContributedDescriptors(kindFilter: DescriptorKindFilter, shouldFilter: Boolean) =
+        getContributedDescriptors(kindFilter) { true }.let {
+            if (shouldFilter) it.filterDescriptorsInSourceSet() else it
+        }
+
+    private fun MemberScope.functions(parent: DRIWithPlatformInfo, packageLevel: Boolean = false): List<DFunction> =
+        getContributedDescriptors(DescriptorKindFilter.FUNCTIONS, packageLevel)
             .filterIsInstance<FunctionDescriptor>()
             .map { visitFunctionDescriptor(it, parent) }
 
-    private fun MemberScope.properties(parent: DRIWithPlatformInfo): List<DProperty> =
-        getContributedDescriptors(DescriptorKindFilter.VALUES) { true }
+    private fun MemberScope.properties(parent: DRIWithPlatformInfo, packageLevel: Boolean = false): List<DProperty> =
+        getContributedDescriptors(DescriptorKindFilter.VALUES, packageLevel)
             .filterIsInstance<PropertyDescriptor>()
             .map { visitPropertyDescriptor(it, parent) }
 
-    private fun MemberScope.classlikes(parent: DRIWithPlatformInfo): List<DClasslike> =
-        getContributedDescriptors(DescriptorKindFilter.CLASSIFIERS) { true }
+    private fun MemberScope.classlikes(parent: DRIWithPlatformInfo, packageLevel: Boolean = false): List<DClasslike> =
+        getContributedDescriptors(DescriptorKindFilter.CLASSIFIERS, packageLevel)
             .filter { it is ClassDescriptor && it.kind != ClassKind.ENUM_ENTRY }
             .map { visitClassDescriptor(it as ClassDescriptor, parent) }
             .mapNotNull { it as? DClasslike }
@@ -489,8 +484,8 @@ private class DokkaDescriptorVisitor(
             .filterIsInstance<PackageFragmentDescriptor>()
             .map { visitPackageFragmentDescriptor(it, parent) }
 
-    private fun MemberScope.typealiases(parent: DRIWithPlatformInfo): List<DTypeAlias> =
-        getContributedDescriptors(DescriptorKindFilter.TYPE_ALIASES) { true }
+    private fun MemberScope.typealiases(parent: DRIWithPlatformInfo, packageLevel: Boolean = false): List<DTypeAlias> =
+        getContributedDescriptors(DescriptorKindFilter.TYPE_ALIASES, packageLevel)
             .filterIsInstance<TypeAliasDescriptor>()
             .map { visitTypeAliasDescriptor(it, parent) }
 
@@ -500,19 +495,14 @@ private class DokkaDescriptorVisitor(
             .filter { it.kind == ClassKind.ENUM_ENTRY }
             .map { enumEntryDescriptor(it, parent) }
 
-    private fun DeclarationDescriptor.resolveDescriptorData(platformData: PlatformData?): PlatformDependent<DocumentationNode> = getDocumentation().let {
-        if (it.children.isEmpty())
-            PlatformDependent.empty()
-        else if (platformData != null)
-            PlatformDependent.from(platformData, it)
-        else
-            PlatformDependent.expectFrom(it)
-    }
 
-    private fun ClassDescriptor.resolveClassDescriptionData(platformData: PlatformData?): ClassInfo {
+    private fun DeclarationDescriptor.resolveDescriptorData(): SourceSetDependent<DocumentationNode> =
+        getDocumentation()?.toSourceSetDependent() ?: emptyMap()
+
+    private fun ClassDescriptor.resolveClassDescriptionData(): ClassInfo {
         return ClassInfo(
             (getSuperInterfaces() + getAllSuperclassesWithoutAny()).map { DRI.from(it) },
-            resolveDescriptorData(platformData)
+            resolveDescriptorData()
         )
     }
 
@@ -520,9 +510,10 @@ private class DokkaDescriptorVisitor(
         DTypeParameter(
             DRI.from(this),
             name.identifier,
-            PlatformDependent.from(platformData, getDocumentation()),
+            resolveDescriptorData(),
+            null,
             upperBounds.map { it.toBound() },
-            listOf(platformData),
+            listOf(sourceSet),
             extra = PropertyContainer.withAll(additionalExtras())
         )
 
@@ -555,7 +546,7 @@ private class DokkaDescriptorVisitor(
 
     private fun DeclarationDescriptor.getDocumentation() = findKDoc().let {
         MarkdownParser(resolutionFacade, this, logger).parseFromKDocTag(it)
-    }
+    }.takeIf { it.children.isNotEmpty() }
 
     private fun ClassDescriptor.companion(dri: DRIWithPlatformInfo): DObject? = companionObjectDescriptor?.let {
         objectDescriptor(it, dri)
@@ -569,11 +560,8 @@ private class DokkaDescriptorVisitor(
         else -> KotlinModifier.Empty
     }
 
-    private fun MemberDescriptor.createSources(): PlatformDependent<DocumentableSource> = if (isExpect()) {
-        PlatformDependent(emptyMap(), DescriptorDocumentableSource(this))
-    } else {
-        PlatformDependent(mapOf(platformData to DescriptorDocumentableSource(this)))
-    }
+    private fun MemberDescriptor.createSources(): SourceSetDependent<DocumentableSource> =
+        DescriptorDocumentableSource(this).toSourceSetDependent()
 
     private fun FunctionDescriptor.additionalExtras() = listOfNotNull(
         ExtraModifiers.DYNAMIC.takeIf { isDynamic() },
@@ -634,7 +622,7 @@ private class DokkaDescriptorVisitor(
     private fun ValueParameterDescriptor.getDefaultValue(): String? =
         (source as? KotlinSourceElement)?.psi?.children?.find { it is KtExpression }?.text
 
-    private data class ClassInfo(val supertypes: List<DRI>, val docs: PlatformDependent<DocumentationNode>)
+    private data class ClassInfo(val supertypes: List<DRI>, val docs: SourceSetDependent<DocumentationNode>)
 
     private fun Visibility.toDokkaVisibility(): org.jetbrains.dokka.model.Visibility = when (this) {
         Visibilities.PUBLIC -> KotlinVisibility.Public
diff --git a/plugins/base/src/main/kotlin/translators/documentables/DefaultPageCreator.kt b/plugins/base/src/main/kotlin/translators/documentables/DefaultPageCreator.kt
index 439da560..232f6721 100644
--- a/plugins/base/src/main/kotlin/translators/documentables/DefaultPageCreator.kt
+++ b/plugins/base/src/main/kotlin/translators/documentables/DefaultPageCreator.kt
@@ -14,7 +14,7 @@ import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 import kotlin.reflect.KClass
 import kotlin.reflect.full.isSubclassOf
 
-private typealias GroupedTags = Map<KClass<out TagWrapper>, List<Pair<PlatformData?, TagWrapper>>>
+private typealias GroupedTags = Map<KClass<out TagWrapper>, List<Pair<SourceSetData?, TagWrapper>>>
 
 private val specialTags: Set<KClass<out TagWrapper>> =
     setOf(Property::class, Description::class, Constructor::class, Receiver::class, Param::class, See::class)
@@ -68,8 +68,8 @@ open class DefaultPageCreator(
             header(1) { text(m.name) }
         }
         +contentForComments(m)
-        block("Packages", 2, ContentKind.Packages, m.packages, m.platformData.toSet()) {
-            link(it.name, it.dri, kind = ContentKind.Main)
+        block("Packages", 2, ContentKind.Packages, m.packages, m.sourceSets.toSet()) {
+            link(it.name, it.dri)
         }
 //        text("Index\n") TODO
 //        text("Link to allpage here")
@@ -80,10 +80,10 @@ open class DefaultPageCreator(
             header(1) { text("Package ${p.name}") }
         }
         +contentForComments(p)
-        +contentForScope(p, p.dri, p.platformData)
-        block("Type aliases", 2, ContentKind.TypeAliases, p.typealiases, p.platformData.toSet()) {
+        +contentForScope(p, p.dri, p.sourceSets)
+        block("Type aliases", 2, ContentKind.TypeAliases, p.typealiases, p.sourceSets.toSet()) {
             link(it.name, it.dri, kind = ContentKind.Main)
-            platformDependentHint(it.dri, it.platformData.toSet(), kind = ContentKind.PlatformDependantHint) {
+            sourceSetDependentHint(it.dri, it.sourceSets.toSet(), kind = ContentKind.SourceSetDependantHint) {
                 +buildSignature(it)
                 contentForBrief(it)
             }
@@ -93,47 +93,47 @@ open class DefaultPageCreator(
     protected open fun contentForScope(
         s: WithScope,
         dri: DRI,
-        platformData: List<PlatformData>
+        sourceSets: List<SourceSetData>
     ) = contentBuilder.contentFor(s as Documentable) {
-        block("Types", 2, ContentKind.Classlikes, s.classlikes, platformData.toSet()) {
+        block("Types", 2, ContentKind.Classlikes, s.classlikes, sourceSets.toSet()) {
             link(it.name ?: "", it.dri, kind = ContentKind.Main)
-            platformDependentHint(it.dri, it.platformData.toSet(), kind = ContentKind.PlatformDependantHint) {
+            sourceSetDependentHint(it.dri, it.sourceSets.toSet(), kind = ContentKind.SourceSetDependantHint) {
                 +buildSignature(it)
                 contentForBrief(it)
             }
         }
-        block("Functions", 2, ContentKind.Functions, s.functions, platformData.toSet()) {
+        block("Functions", 2, ContentKind.Functions, s.functions, sourceSets.toSet()) {
             link(it.name, it.dri, kind = ContentKind.Main)
-            platformDependentHint(it.dri, it.platformData.toSet(), kind = ContentKind.PlatformDependantHint) {
+            sourceSetDependentHint(it.dri, it.sourceSets.toSet(), kind = ContentKind.SourceSetDependantHint) {
                 +buildSignature(it)
                 contentForBrief(it)
             }
         }
-        block("Properties", 2, ContentKind.Properties, s.properties, platformData.toSet()) {
+        block("Properties", 2, ContentKind.Properties, s.properties, sourceSets.toSet()) {
             link(it.name, it.dri, kind = ContentKind.Main)
-            platformDependentHint(it.dri, it.platformData.toSet(), kind = ContentKind.PlatformDependantHint) {
+            sourceSetDependentHint(it.dri, it.sourceSets.toSet(), kind = ContentKind.SourceSetDependantHint) {
                 +buildSignature(it)
 
                 contentForBrief(it)
             }
         }
         s.safeAs<WithExtraProperties<Documentable>>()?.let { it.extra[InheritorsInfo] }?.let { inheritors ->
-            val map = inheritors.value.map.filter { it.value.isNotEmpty() }
+            val map = inheritors.value.filter { it.value.isNotEmpty() }
             if (map.values.any()) {
                 header(2) { text("Inheritors") }
                 +ContentTable(
                     emptyList(),
                     map.entries.flatMap { entry -> entry.value.map { Pair(entry.key, it) } }
                         .groupBy({ it.second }, { it.first }).map { (classlike, platforms) ->
-                        buildGroup(dri, platforms.toSet(), ContentKind.Inheritors) {
-                            link(
-                                classlike.classNames?.substringBeforeLast(".") ?: classlike.toString()
-                                    .also { logger.warn("No class name found for DRI $classlike") }, classlike
-                            )
-                        }
-                    },
+                            buildGroup(dri, platforms.toSet(), ContentKind.Inheritors) {
+                                link(
+                                    classlike.classNames?.substringBeforeLast(".") ?: classlike.toString()
+                                        .also { logger.warn("No class name found for DRI $classlike") }, classlike
+                                )
+                            }
+                        },
                     DCI(setOf(dri), ContentKind.Inheritors),
-                    platformData.toSet(),
+                    sourceSets.toSet(),
                     style = emptySet()
                 )
             }
@@ -146,13 +146,13 @@ open class DefaultPageCreator(
             +buildSignature(e)
         }
         +contentForComments(e)
-        +contentForScope(e, e.dri, e.platformData)
+        +contentForScope(e, e.dri, e.sourceSets)
     }
 
     protected open fun contentForClasslike(c: DClasslike) = contentBuilder.contentFor(c) {
         group(kind = ContentKind.Cover) {
             header(1) { text(c.name.orEmpty()) }
-            platformDependentHint(c.dri, c.platformData.toSet()) {
+            sourceSetDependentHint(c.dri, c.sourceSets.toSet()) {
                 +buildSignature(c)
             }
         }
@@ -164,58 +164,57 @@ open class DefaultPageCreator(
                 2,
                 ContentKind.Constructors,
                 c.constructors.filter { it.extra[PrimaryConstructorExtra] == null },
-                c.platformData.toSet()
+                c.sourceSets.toSet()
             ) {
                 link(it.name, it.dri, kind = ContentKind.Main)
-                platformDependentHint(it.dri, it.platformData.toSet(), kind = ContentKind.PlatformDependantHint) {
+                sourceSetDependentHint(it.dri, it.sourceSets.toSet(), kind = ContentKind.SourceSetDependantHint) {
                     +buildSignature(it)
                     contentForBrief(it)
                 }
             }
         }
         if (c is DEnum) {
-            block("Entries", 2, ContentKind.Classlikes, c.entries, c.platformData.toSet()) {
+            block("Entries", 2, ContentKind.Classlikes, c.entries, c.sourceSets.toSet()) {
                 link(it.name, it.dri, kind = ContentKind.Main)
-                platformDependentHint(it.dri, it.platformData.toSet(), kind = ContentKind.PlatformDependantHint) {
+                sourceSetDependentHint(it.dri, it.sourceSets.toSet(), kind = ContentKind.SourceSetDependantHint) {
                     +buildSignature(it)
                     contentForBrief(it)
                 }
             }
         }
 
-        +contentForScope(c, c.dri, c.platformData)
+        +contentForScope(c, c.dri, c.sourceSets)
     }
 
     @Suppress("UNCHECKED_CAST")
-    private inline fun <reified T : TagWrapper> GroupedTags.withTypeUnnamed(): PlatformDependent<T> =
-        (this[T::class] as List<Pair<PlatformData, T>>?)
-            ?.let { PlatformDependent.from(it) }.orEmpty()
+    private inline fun <reified T : TagWrapper> GroupedTags.withTypeUnnamed(): SourceSetDependent<T> =
+        (this[T::class] as List<Pair<SourceSetData, T>>?)?.toMap().orEmpty()
 
     @Suppress("UNCHECKED_CAST")
-    private inline fun <reified T : NamedTagWrapper> GroupedTags.withTypeNamed(): Map<String, PlatformDependent<T>> =
-        (this[T::class] as List<Pair<PlatformData, T>>?)
+    private inline fun <reified T : NamedTagWrapper> GroupedTags.withTypeNamed(): Map<String, SourceSetDependent<T>> =
+        (this[T::class] as List<Pair<SourceSetData, T>>?)
             ?.groupBy { it.second.name }
-            ?.mapValues { (_, v) -> PlatformDependent.from(v) }
+            ?.mapValues { (_, v) -> v.toMap() }
             .orEmpty()
 
     private inline fun <reified T : TagWrapper> GroupedTags.isNotEmptyForTag(): Boolean =
-            this[T::class]?.isNotEmpty() ?: false
+        this[T::class]?.isNotEmpty() ?: false
 
     protected open fun contentForComments(
         d: Documentable
     ): List<ContentNode> {
-        val tags: GroupedTags = d.documentation.allEntries.flatMap { (pd, doc) ->
-            doc.children.asSequence().map { pd to it }
+        val tags: GroupedTags = d.documentation.flatMap { (pd, doc) ->
+            doc.children.asSequence().map { pd to it }.toList()
         }.groupBy { it.second::class }
 
-        val platforms = d.platformData
+        val platforms = d.sourceSets
 
         fun DocumentableContentBuilder.contentForDescription() {
             val description = tags.withTypeUnnamed<Description>()
             if (description.any { it.value.root.children.isNotEmpty() }) {
                 platforms.forEach { platform ->
-                    description.getOrExpect(platform)?.also {
-                        group(platformData = setOf(platform)) {
+                    description[platform]?.also {
+                        group(sourceSets = setOf(platform)) {
                             comment(it.root)
                         }
                     }
@@ -232,16 +231,16 @@ open class DefaultPageCreator(
                 }
                 table(kind = ContentKind.Parameters) {
                     platforms.flatMap { platform ->
-                        val receiverRow = receiver.getOrExpect(platform)?.let {
-                            buildGroup(platformData = setOf(platform), kind = ContentKind.Parameters, styles = mainStyles + ContentStyle.KeyValue) {
+                        val receiverRow = receiver[platform]?.let {
+                            buildGroup(sourceSets = setOf(platform), kind = ContentKind.Parameters, styles = mainStyles + ContentStyle.KeyValue) {
                                 text("<receiver>")
                                 comment(it.root)
                             }
                         }
 
                         val paramRows = params.mapNotNull { (_, param) ->
-                            param.getOrExpect(platform)?.let {
-                                buildGroup(platformData = setOf(platform), kind = ContentKind.Parameters, styles = mainStyles + ContentStyle.KeyValue) {
+                            param[platform]?.let {
+                                buildGroup(sourceSets = setOf(platform), kind = ContentKind.Parameters, styles = mainStyles + ContentStyle.KeyValue) {
                                     text(it.name, kind = ContentKind.Parameters)
                                     comment(it.root)
                                 }
@@ -263,8 +262,8 @@ open class DefaultPageCreator(
                 table(kind = ContentKind.Sample) {
                     platforms.flatMap { platform ->
                         seeAlsoTags.mapNotNull { (_, see) ->
-                            see.getOrExpect(platform)?.let {
-                                buildGroup(platformData = setOf(platform), kind = ContentKind.Comment, styles = mainStyles + ContentStyle.KeyValue) {
+                            see[platform]?.let {
+                                buildGroup(sourceSets = setOf(platform), kind = ContentKind.Comment, styles = mainStyles + ContentStyle.KeyValue) {
                                     if (it.address != null) link(it.name, it.address!!, kind = ContentKind.Comment)
                                     else text(it.name, kind = ContentKind.Comment)
                                     comment(it.root)
@@ -282,7 +281,7 @@ open class DefaultPageCreator(
                 platforms.forEach { platformData ->
                     val content = samples.filter { it.value.isEmpty() || platformData in it.value }
                     if (content.isNotEmpty()) {
-                        group(platformData = setOf(platformData)) {
+                        group(sourceSets = setOf(platformData)) {
                             header(4, kind = ContentKind.Comment) { text("Samples") }
                             content.forEach {
                                 comment(Text(it.key))
@@ -294,13 +293,13 @@ open class DefaultPageCreator(
         }
 
         fun DocumentableContentBuilder.contentForUnnamedTags() {
-            val unnamedTags: List<PlatformDependent<TagWrapper>> =
+            val unnamedTags: List<SourceSetDependent<TagWrapper>> =
                 tags.filterNot { (k, _) -> k.isSubclassOf(NamedTagWrapper::class) || k in specialTags }
-                    .map { (_, v) -> PlatformDependent.from(v) }
+                    .map { (_, v) -> v.mapNotNull { (k,v) -> k?.let { it to v } }.toMap() }
             platforms.forEach { platform ->
                 unnamedTags.forEach { pdTag ->
-                    pdTag.getOrExpect(platform)?.also { tag ->
-                        group(platformData = setOf(platform)) {
+                    pdTag[platform]?.also { tag ->
+                        group(sourceSets = setOf(platform)) {
                             header(4) { text(tag.toHeaderString()) }
                             comment(tag.root)
                         }
@@ -312,7 +311,7 @@ open class DefaultPageCreator(
         return contentBuilder.contentFor(d) {
             if (tags.isNotEmpty()) {
                 header(3) { text("Description") }
-                platformDependentHint(platformData = platforms.toSet()) {
+                sourceSetDependentHint(sourceSets = platforms.toSet()) {
                     contentForDescription()
                     contentForSamples()
                     contentForParams()
@@ -324,11 +323,11 @@ open class DefaultPageCreator(
     }
 
     protected open fun DocumentableContentBuilder.contentForBrief(content: Documentable) {
-        content.platformData.forEach { platform ->
+        content.sourceSets.forEach { platform ->
             val root = content.documentation[platform]?.children?.firstOrNull()?.root
 
             root?.let {
-                group(platformData = setOf(platform), kind = ContentKind.BriefComment) {
+                group(sourceSets = setOf(platform), kind = ContentKind.BriefComment) {
                     text(it.docTagSummary(), kind = ContentKind.Comment)
                 }
             }
@@ -338,7 +337,7 @@ open class DefaultPageCreator(
     protected open fun contentForFunction(f: DFunction) = contentBuilder.contentFor(f) {
         group(kind = ContentKind.Cover) {
             header(1) { text(f.name) }
-            platformDependentHint(f.dri, f.platformData.toSet()) {
+            sourceSetDependentHint(f.dri, f.sourceSets.toSet()) {
                 +buildSignature(f)
             }
         }
diff --git a/plugins/base/src/main/kotlin/translators/documentables/PageContentBuilder.kt b/plugins/base/src/main/kotlin/translators/documentables/PageContentBuilder.kt
index 6cb47b7f..3ed19afa 100644
--- a/plugins/base/src/main/kotlin/translators/documentables/PageContentBuilder.kt
+++ b/plugins/base/src/main/kotlin/translators/documentables/PageContentBuilder.kt
@@ -19,46 +19,46 @@ open class PageContentBuilder(
 ) {
     fun contentFor(
         dri: DRI,
-        platformData: Set<PlatformData>,
+        sourceSets: Set<SourceSetData>,
         kind: Kind = ContentKind.Main,
         styles: Set<Style> = emptySet(),
         extra: PropertyContainer<ContentNode> = PropertyContainer.empty(),
         block: DocumentableContentBuilder.() -> Unit
     ): ContentGroup =
-        DocumentableContentBuilder(dri, platformData, styles, extra)
+        DocumentableContentBuilder(dri, sourceSets, styles, extra)
             .apply(block)
-            .build(platformData, kind, styles, extra)
+            .build(sourceSets, kind, styles, extra)
 
     fun contentFor(
         d: Documentable,
         kind: Kind = ContentKind.Main,
         styles: Set<Style> = emptySet(),
         extra: PropertyContainer<ContentNode> = PropertyContainer.empty(),
-        platformData: Set<PlatformData> = d.platformData.toSet(),
+        sourceSets: Set<SourceSetData> = d.sourceSets.toSet(),
         block: DocumentableContentBuilder.() -> Unit = {}
     ): ContentGroup =
-        DocumentableContentBuilder(d.dri, platformData, styles, extra)
+        DocumentableContentBuilder(d.dri, sourceSets, styles, extra)
             .apply(block)
-            .build(platformData, kind, styles, extra)
+            .build(sourceSets, kind, styles, extra)
 
     @ContentBuilderMarker
     open inner class DocumentableContentBuilder(
         val mainDRI: DRI,
-        val mainPlatformData: Set<PlatformData>,
+        val mainPlatformData: Set<SourceSetData>,
         val mainStyles: Set<Style>,
         val mainExtra: PropertyContainer<ContentNode>
     ) {
         protected val contents = mutableListOf<ContentNode>()
 
         fun build(
-            platformData: Set<PlatformData>,
+            sourceSets: Set<SourceSetData>,
             kind: Kind,
             styles: Set<Style>,
             extra: PropertyContainer<ContentNode>
         ) = ContentGroup(
             contents.toList(),
             DCI(setOf(mainDRI), kind),
-            platformData,
+            sourceSets,
             styles,
             extra
         )
@@ -74,7 +74,7 @@ open class PageContentBuilder(
         fun header(
             level: Int,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            platformData: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             block: DocumentableContentBuilder.() -> Unit
@@ -88,11 +88,11 @@ open class PageContentBuilder(
         fun text(
             text: String,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra
         ) {
-            contents += createText(text, kind, platformData, styles, extra)
+            contents += createText(text, kind, sourceSets, styles, extra)
         }
 
         fun buildSignature(d: Documentable) = signatureProvider.signature(d)
@@ -100,26 +100,26 @@ open class PageContentBuilder(
         fun linkTable(
             elements: List<DRI>,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra
         ) {
             contents += ContentTable(
                 emptyList(),
                 elements.map {
-                    contentFor(it, platformData, kind, styles, extra) {
+                    contentFor(it, sourceSets, kind, styles, extra) {
                         link(it.classNames ?: "", it)
                     }
                 },
                 DCI(setOf(mainDRI), kind),
-                platformData, styles, extra
+                sourceSets, styles, extra
             )
         }
 
         fun table(
             dri: DRI = mainDRI,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             operation: DocumentableContentBuilder.() -> List<ContentGroup>
@@ -128,7 +128,7 @@ open class PageContentBuilder(
                 emptyList(),
                 operation(),
                 DCI(setOf(mainDRI), kind),
-                platformData, styles, extra
+                sourceSets, styles, extra
             )
         }
 
@@ -137,7 +137,7 @@ open class PageContentBuilder(
             level: Int,
             kind: Kind = ContentKind.Main,
             elements: Iterable<T>,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             renderWhenEmpty: Boolean = false,
@@ -148,12 +148,12 @@ open class PageContentBuilder(
                 contents += ContentTable(
                     emptyList(),
                     elements.map {
-                        buildGroup(it.dri, it.platformData.toSet(), kind, styles, extra) {
+                        buildGroup(it.dri, it.sourceSets.toSet(), kind, styles, extra) {
                             operation(it)
                         }
                     },
                     DCI(setOf(mainDRI), kind),
-                    platformData, styles, extra
+                    sourceSets, styles, extra
                 )
             }
         }
@@ -163,17 +163,17 @@ open class PageContentBuilder(
             prefix: String = "",
             suffix: String = "",
             separator: String = ", ",
-            platformData: Set<PlatformData> = mainPlatformData, // TODO: children should be aware of this platform data
+            sourceSets: Set<SourceSetData> = mainPlatformData, // TODO: children should be aware of this platform data
             operation: DocumentableContentBuilder.(T) -> Unit
         ) {
             if (elements.isNotEmpty()) {
-                if (prefix.isNotEmpty()) text(prefix, platformData = platformData)
+                if (prefix.isNotEmpty()) text(prefix, sourceSets = sourceSets)
                 elements.dropLast(1).forEach {
                     operation(it)
-                    text(separator, platformData = platformData)
+                    text(separator, sourceSets = sourceSets)
                 }
                 operation(elements.last())
-                if (suffix.isNotEmpty()) text(suffix, platformData = platformData)
+                if (suffix.isNotEmpty()) text(suffix, sourceSets = sourceSets)
             }
         }
 
@@ -181,15 +181,15 @@ open class PageContentBuilder(
             text: String,
             address: DRI,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra
         ) {
             contents += ContentDRILink(
-                listOf(createText(text, kind, platformData, styles, extra)),
+                listOf(createText(text, kind, sourceSets, styles, extra)),
                 address,
                 DCI(setOf(mainDRI), kind),
-                platformData
+                sourceSets
             )
         }
 
@@ -197,99 +197,99 @@ open class PageContentBuilder(
             text: String,
             address: String,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra
         ) =
         ContentResolvedLink(
-            children = listOf(createText(text, kind, platformData, styles, extra)),
+            children = listOf(createText(text, kind, sourceSets, styles, extra)),
             address = address,
             extra = PropertyContainer.empty(),
             dci = DCI(setOf(mainDRI), kind),
-            platforms = platformData,
+            sourceSets = sourceSets,
             style = emptySet()
         )
 
         fun link(
             address: DRI,
             kind: Kind = ContentKind.Main,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             block: DocumentableContentBuilder.() -> Unit
         ) {
             contents += ContentDRILink(
-                contentFor(mainDRI, platformData, kind, styles, extra, block).children,
+                contentFor(mainDRI, sourceSets, kind, styles, extra, block).children,
                 address,
                 DCI(setOf(mainDRI), kind),
-                platformData
+                sourceSets
             )
         }
 
         fun comment(
             docTag: DocTag,
             kind: Kind = ContentKind.Comment,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra
         ) {
             val content = commentsConverter.buildContent(
                 docTag,
                 DCI(setOf(mainDRI), kind),
-                platformData
+                sourceSets
             )
-            contents += ContentGroup(content, DCI(setOf(mainDRI), kind), platformData, styles, extra)
+            contents += ContentGroup(content, DCI(setOf(mainDRI), kind), sourceSets, styles, extra)
         }
 
         fun group(
             dri: DRI = mainDRI,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             kind: Kind = ContentKind.Main,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             block: DocumentableContentBuilder.() -> Unit
         ) {
-            contents += buildGroup(dri, platformData, kind, styles, extra, block)
+            contents += buildGroup(dri, sourceSets, kind, styles, extra, block)
         }
 
         fun buildGroup(
             dri: DRI = mainDRI,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             kind: Kind = ContentKind.Main,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             block: DocumentableContentBuilder.() -> Unit
-        ): ContentGroup = contentFor(dri, platformData, kind, styles, extra, block)
+        ): ContentGroup = contentFor(dri, sourceSets, kind, styles, extra, block)
 
-        fun platformDependentHint(
+        fun sourceSetDependentHint(
             dri: DRI = mainDRI,
-            platformData: Set<PlatformData> = mainPlatformData,
+            sourceSets: Set<SourceSetData> = mainPlatformData,
             kind: Kind = ContentKind.Main,
             styles: Set<Style> = mainStyles,
             extra: PropertyContainer<ContentNode> = mainExtra,
             block: DocumentableContentBuilder.() -> Unit
         ) {
             contents += PlatformHintedContent(
-                buildGroup(dri, platformData, kind, styles, extra, block),
-                platformData
+                buildGroup(dri, sourceSets, kind, styles, extra, block),
+                sourceSets
             )
         }
 
         protected fun createText(
             text: String,
             kind: Kind,
-            platformData: Set<PlatformData>,
+            sourceSets: Set<SourceSetData>,
             styles: Set<Style>,
             extra: PropertyContainer<ContentNode>
         ) =
-            ContentText(text, DCI(setOf(mainDRI), kind), platformData, styles, extra)
+            ContentText(text, DCI(setOf(mainDRI), kind), sourceSets, styles, extra)
 
         fun <T> platformText(
-            value: PlatformDependent<T>,
-            platforms: Set<PlatformData> = value.keys,
+            value: SourceSetDependent<T>,
+            platforms: Set<SourceSetData> = value.keys,
             transform: (T) -> String
         ) = value.entries.filter { it.key in platforms }.forEach { (p, v) ->
-            transform(v).takeIf { it.isNotBlank() }?.also { text(it, platformData = setOf(p)) }
+            transform(v).takeIf { it.isNotBlank() }?.also { text(it, sourceSets = setOf(p)) }
         }
     }
 }
\ No newline at end of file
diff --git a/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt b/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt
index e5fa4bfc..ca8055c8 100644
--- a/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt
+++ b/plugins/base/src/main/kotlin/translators/psi/DefaultPsiToDocumentableTranslator.kt
@@ -9,7 +9,6 @@ import org.jetbrains.dokka.links.DRI
 import org.jetbrains.dokka.links.withClass
 import org.jetbrains.dokka.model.*
 import org.jetbrains.dokka.model.properties.PropertyContainer
-import org.jetbrains.dokka.pages.PlatformData
 import org.jetbrains.dokka.plugability.DokkaContext
 import org.jetbrains.dokka.transformers.sources.SourceToDocumentableTranslator
 import org.jetbrains.dokka.utilities.DokkaLogger
@@ -23,16 +22,21 @@ import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.psiUtil.getChildOfType
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.utils.addToStdlib.safeAs
+import java.io.File
 
 object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
 
-    override fun invoke(platformData: PlatformData, context: DokkaContext): DModule {
+    override fun invoke(sourceSetData: SourceSetData, context: DokkaContext): DModule {
 
-        val (environment, _) = context.platforms.getValue(platformData)
+        fun isFileInSourceRoots(file: File) : Boolean {
+            return sourceSetData.sourceRoots.any { root -> file.path.startsWith(File(root.path).absolutePath) }
+        }
+
+        val (environment, _) = context.platforms.getValue(sourceSetData)
 
         val sourceRoots = environment.configuration.get(CLIConfigurationKeys.CONTENT_ROOTS)
             ?.filterIsInstance<JavaSourceRoot>()
-            ?.map { it.file }
+            ?.mapNotNull { it.file.takeIf(::isFileInSourceRoots) }
             ?: listOf()
         val localFileSystem = VirtualFileManager.getInstance().getFileSystem("file")
 
@@ -46,11 +50,11 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
 
         val docParser =
             DokkaPsiParser(
-                platformData,
+                sourceSetData,
                 context.logger
             )
         return DModule(
-            platformData.name,
+            sourceSetData.moduleName,
             psiFiles.mapNotNull { it.safeAs<PsiJavaFile>() }.groupBy { it.packageName }.map { (packageName, psiFiles) ->
                 val dri = DRI(packageName = packageName)
                 DPackage(
@@ -61,17 +65,19 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                         psiFile.classes.map { docParser.parseClasslike(it, dri) }
                     },
                     emptyList(),
-                    PlatformDependent.empty(),
-                    listOf(platformData)
+                    emptyMap(),
+                    null,
+                    listOf(sourceSetData)
                 )
             },
-            PlatformDependent.empty(),
-            listOf(platformData)
+            emptyMap(),
+            null,
+            listOf(sourceSetData)
         )
     }
 
     class DokkaPsiParser(
-        private val platformData: PlatformData,
+        private val sourceSetData: SourceSetData,
         private val logger: DokkaLogger
     ) {
 
@@ -104,7 +110,7 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
         }
 
         private fun <T> T.toPlatformDependant() =
-            PlatformDependent(mapOf(platformData to this))
+            mapOf(sourceSetData to this)
 
         fun parseClasslike(psi: PsiClass, parent: DRI): DClasslike = with(psi) {
             val dri = parent.withClass(name.toString())
@@ -145,6 +151,7 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                         name.orEmpty(),
                         dri,
                         documentation,
+                        null,
                         source,
                         allFunctions,
                         fields.mapNotNull { parseField(it, accessors[it].orEmpty()) },
@@ -152,7 +159,7 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                         visibility,
                         null,
                         constructors.map { parseFunction(it, true) },
-                        listOf(platformData),
+                        listOf(sourceSetData),
                         PropertyContainer.empty<DAnnotation>() + annotations.toList().toExtra()
                     )
                 isEnum -> DEnum(
@@ -163,14 +170,16 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                             dri.withClass("$name.${entry.name}"),
                             entry.name.orEmpty(),
                             javadocParser.parseDocumentation(entry).toPlatformDependant(),
+                            null,
                             emptyList(),
                             emptyList(),
                             emptyList(),
-                            listOf(platformData),
+                            listOf(sourceSetData),
                             PropertyContainer.empty<DEnumEntry>() + entry.annotations.toList().toExtra()
                         )
                     },
                     documentation,
+                    null,
                     source,
                     allFunctions,
                     fields.filter { it !is PsiEnumConstant }.map { parseField(it, accessors[it].orEmpty()) },
@@ -179,13 +188,14 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                     null,
                     constructors.map { parseFunction(it, true) },
                     ancestors,
-                    listOf(platformData),
+                    listOf(sourceSetData),
                     PropertyContainer.empty<DEnum>() + annotations.toList().toExtra()
                 )
                 isInterface -> DInterface(
                     dri,
                     name.orEmpty(),
                     documentation,
+                    null,
                     source,
                     allFunctions,
                     fields.mapNotNull { parseField(it, accessors[it].orEmpty()) },
@@ -194,7 +204,7 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                     null,
                     mapTypeParameters(dri),
                     ancestors,
-                    listOf(platformData),
+                    listOf(sourceSetData),
                     PropertyContainer.empty<DInterface>() + annotations.toList().toExtra()
                 )
                 else -> DClass(
@@ -210,8 +220,9 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                     mapTypeParameters(dri),
                     ancestors,
                     documentation,
+                    null,
                     modifiers,
-                    listOf(platformData),
+                    listOf(sourceSetData),
                     PropertyContainer.empty<DClass>() + annotations.toList().toExtra()
                 )
             }
@@ -232,18 +243,20 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                         dri.copy(target = index + 1),
                         psiParameter.name,
                         javadocParser.parseDocumentation(psiParameter).toPlatformDependant(),
+                        null,
                         getBound(psiParameter.type),
-                        listOf(platformData)
+                        listOf(sourceSetData)
                     )
                 },
                 javadocParser.parseDocumentation(psi).toPlatformDependant(),
+                null,
                 PsiDocumentableSource(psi).toPlatformDependant(),
                 psi.getVisibility().toPlatformDependant(),
                 psi.returnType?.let { getBound(type = it) } ?: Void,
                 psi.mapTypeParameters(dri),
                 null,
                 psi.getModifier().toPlatformDependant(),
-                listOf(platformData),
+                listOf(sourceSetData),
                 PropertyContainer.withAll(
                     InheritedFunction(isInherited),
                     psi.annotations.toList().toExtra(),
@@ -313,8 +326,9 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                     dri.copy(genericTarget = index),
                     type.name.orEmpty(),
                     javadocParser.parseDocumentation(type).toPlatformDependant(),
+                    null,
                     mapBounds(type.bounds),
-                    listOf(platformData)
+                    listOf(sourceSetData)
                 )
             }
         }
@@ -349,6 +363,7 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                 dri,
                 psi.name!!, // TODO: Investigate if this is indeed nullable
                 javadocParser.parseDocumentation(psi).toPlatformDependant(),
+                null,
                 PsiDocumentableSource(psi).toPlatformDependant(),
                 psi.getVisibility().toPlatformDependant(),
                 getBound(psi.type),
@@ -356,7 +371,7 @@ object DefaultPsiToDocumentableTranslator : SourceToDocumentableTranslator {
                 accessors.firstOrNull { it.hasParameters() }?.let { parseFunction(it) },
                 accessors.firstOrNull { it.returnType == psi.type }?.let { parseFunction(it) },
                 psi.getModifier().toPlatformDependant(),
-                listOf(platformData),
+                listOf(sourceSetData),
                 emptyList(),
                 PropertyContainer.empty<DProperty>() + psi.annotations.toList().toExtra()
             )