[LL FIR] incrementally update module caches

2022-07-24 12:59:17 +02:00
parent b9e2173288
commit 91cf194a94
8 changed files with 188 additions and 84 deletions
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.analysis.utils.trackers
+
+import com.intellij.openapi.util.ModificationTracker
+
+public class CompositeModificationTracker private constructor(private val trackers: List<ModificationTracker>) : ModificationTracker {
+    override fun getModificationCount(): Long = trackers.sumOf { it.modificationCount }
+
+    public companion object {
+        public fun create(trackers: List<ModificationTracker>): ModificationTracker = when (trackers.size) {
+            0 -> ModificationTracker.NEVER_CHANGED
+            1 -> trackers.single()
+            else -> CompositeModificationTracker(trackers)
+        }
+    }
+}