Replace !! with some meaningful messages

2 files changed, 16 insertions, 5 deletions

diff --git a/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt b/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt
index d9ff924b..41dffa07 100644
--- a/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt
+++ b/plugins/base/src/main/kotlin/renderers/DefaultRenderer.kt
@@ -4,6 +4,8 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
+import org.jetbrains.dokka.DokkaConfiguration.DokkaSourceSet
+import org.jetbrains.dokka.DokkaException
 import org.jetbrains.dokka.base.DokkaBase
 import org.jetbrains.dokka.base.resolvers.local.LocationProvider
 import org.jetbrains.dokka.model.DisplaySourceSet
@@ -157,7 +159,10 @@ abstract class DefaultRenderer<T>(
     }
 
     open suspend fun renderPage(page: PageNode) {
-        val path by lazy { locationProvider.resolve(page, skipExtension = true)!! }
+        val path by lazy {
+            locationProvider.resolve(page, skipExtension = true)
+                ?: throw DokkaException("Cannot resolve path for ${page.name}")
+        }
         when (page) {
             is ContentPage -> outputWriter.write(path, buildPage(page) { c, p -> buildPageContent(c, p) }, ".html")
             is RendererSpecificPage -> when (val strategy = page.strategy) {
diff --git a/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt b/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
index d9833e43..0d20e8ac 100644
--- a/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
+++ b/plugins/base/src/main/kotlin/renderers/html/HtmlRenderer.kt
@@ -523,11 +523,16 @@ open class HtmlRenderer(
         }
 
     private fun FlowContent.buildLink(to: PageNode, from: PageNode) =
-        buildLink(locationProvider.resolve(to, from)!!) {
+        locationProvider.resolve(to, from)?.let { path ->
+            buildLink(path) {
+                text(to.name)
+            }
+        } ?: span {
+            attributes["data-unresolved-link"] = to.name.htmlEscape()
             text(to.name)
         }
 
-    private fun FlowContent.buildAnchor(pointingTo: String) {
+    fun FlowContent.buildAnchor(pointingTo: String) {
         span(classes = "anchor-wrapper") {
             span(classes = "anchor-icon") {
                 attributes["pointing-to"] = pointingTo
@@ -551,7 +556,8 @@ open class HtmlRenderer(
         platforms: List<DisplaySourceSet>,
         from: PageNode? = null,
         block: FlowContent.() -> Unit
-    ) = buildLink(locationProvider.resolve(to, platforms.toSet(), from)!!, block)
+    ) = locationProvider.resolve(to, platforms.toSet(), from)?.let { buildLink(it, block) }
+        ?: run { context.logger.error("Cannot resolve path for $to"); block() }
 
     override fun buildError(node: ContentNode) {
         context.logger.error("Unknown ContentNode type: $node")
@@ -603,7 +609,7 @@ open class HtmlRenderer(
     override suspend fun renderPage(page: PageNode) {
         super.renderPage(page)
         if (page is ContentPage && page !is ModulePageNode && page !is PackagePageNode)
-            searchbarDataInstaller.processPage(page, locationProvider.resolve(page))
+            searchbarDataInstaller.processPage(page, locationProvider.resolve(page) ?: context.logger.error("Cannot resolve path for ${page.dri}"))
     }
 
     override fun FlowContent.buildText(textNode: ContentText) =