From 5478a552ed09473a0590defc64a1872d2cf3a70a Mon Sep 17 00:00:00 2001
From: Sergey Rostov <Sergey.Rostov@jetbrains.com>
Date: Mon, 4 Jun 2018 15:05:55 +0300
Subject: [PATCH] jps, js: Fix exception on rebuild js module

---
 .../kotlin/incremental/IncrementalJsCache.kt      |  2 ++
 .../kotlin/jps/incremental/JpsIncrementalCache.kt |  4 +++-
 .../jps/platforms/KotlinJsModuleBuildTarget.kt    | 15 +++++++++------
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/build-common/src/org/jetbrains/kotlin/incremental/IncrementalJsCache.kt b/build-common/src/org/jetbrains/kotlin/incremental/IncrementalJsCache.kt
index 9696d78fd66..76b534d8e3e 100644
--- a/build-common/src/org/jetbrains/kotlin/incremental/IncrementalJsCache.kt
+++ b/build-common/src/org/jetbrains/kotlin/incremental/IncrementalJsCache.kt
@@ -41,6 +41,8 @@ open class IncrementalJsCache(cachesDir: File) : AbstractIncrementalCache<FqName
         private val TRANSLATION_RESULT_MAP = "translation-result"
         private val INLINE_FUNCTIONS = "inline-functions"
         private val HEADER_FILE_NAME = "header.meta"
+
+        fun hasHeaderFile(cachesDir: File) = File(cachesDir, HEADER_FILE_NAME).exists()
     }
 
     override val sourceToClassesMap = registerMap(SourceToFqNameMap(SOURCE_TO_CLASSES.storageFile))
diff --git a/jps-plugin/src/org/jetbrains/kotlin/jps/incremental/JpsIncrementalCache.kt b/jps-plugin/src/org/jetbrains/kotlin/jps/incremental/JpsIncrementalCache.kt
index 8565d3d4014..10f0c650669 100644
--- a/jps-plugin/src/org/jetbrains/kotlin/jps/incremental/JpsIncrementalCache.kt
+++ b/jps-plugin/src/org/jetbrains/kotlin/jps/incremental/JpsIncrementalCache.kt
@@ -52,7 +52,9 @@ class JpsIncrementalJsCache(
     paths: BuildDataPaths
 ) : IncrementalJsCache(paths.getTargetDataRoot(target)), JpsIncrementalCache {
     override fun addJpsDependentCache(cache: JpsIncrementalCache) {
-        addDependentCache(cache as JpsIncrementalJsCache)
+        if (cache is JpsIncrementalJsCache) {
+            addDependentCache(cache)
+        }
     }
 }
 
diff --git a/jps-plugin/src/org/jetbrains/kotlin/jps/platforms/KotlinJsModuleBuildTarget.kt b/jps-plugin/src/org/jetbrains/kotlin/jps/platforms/KotlinJsModuleBuildTarget.kt
index 27739eb4f28..d02ac9f7df1 100644
--- a/jps-plugin/src/org/jetbrains/kotlin/jps/platforms/KotlinJsModuleBuildTarget.kt
+++ b/jps-plugin/src/org/jetbrains/kotlin/jps/platforms/KotlinJsModuleBuildTarget.kt
@@ -22,7 +22,10 @@ import org.jetbrains.kotlin.incremental.ChangesCollector
 import org.jetbrains.kotlin.incremental.IncrementalJsCache
 import org.jetbrains.kotlin.incremental.components.ExpectActualTracker
 import org.jetbrains.kotlin.incremental.components.LookupTracker
-import org.jetbrains.kotlin.incremental.js.*
+import org.jetbrains.kotlin.incremental.js.IncrementalDataProvider
+import org.jetbrains.kotlin.incremental.js.IncrementalDataProviderFromCache
+import org.jetbrains.kotlin.incremental.js.IncrementalResultsConsumer
+import org.jetbrains.kotlin.incremental.js.IncrementalResultsConsumerImpl
 import org.jetbrains.kotlin.jps.build.KotlinDirtySourceFilesHolder
 import org.jetbrains.kotlin.jps.incremental.JpsIncrementalCache
 import org.jetbrains.kotlin.jps.incremental.JpsIncrementalJsCache
@@ -39,11 +42,11 @@ import java.net.URI
 class KotlinJsModuleBuildTarget(compileContext: CompileContext, jpsModuleBuildTarget: ModuleBuildTarget) :
     KotlinModuleBuildTarget(compileContext, jpsModuleBuildTarget) {
 
-    val sourceToOutputMap
-        get() = context.projectDescriptor.dataManager.getSourceToOutputMap(jpsModuleBuildTarget)
-
-    val isFirstBuild
-        get() = sourceToOutputMap.sources.isEmpty()
+    val isFirstBuild: Boolean
+        get() {
+            val targetDataRoot = context.projectDescriptor.dataManager.dataPaths.getTargetDataRoot(jpsModuleBuildTarget)
+            return !IncrementalJsCache.hasHeaderFile(targetDataRoot)
+        }
 
     override fun makeServices(
         builder: Services.Builder,