From 26714d56d8df62cee78be86671a71908edc5d011 Mon Sep 17 00:00:00 2001
From: Denis Zharkov <denis.zharkov@jetbrains.com>
Date: Thu, 29 Mar 2018 15:03:53 +0200
Subject: [PATCH] Use WeakKeySoftValueMap in ResolveElementCache

Otherwise results are effectively retained in the maps until we're close
to OutOfMemory.
While we mostly need them for a short time (especially in the case we
run resolution during usages search).

The possible problem is that the values may become too short-living,
but now using these maps is a conventional solution for similar tasks in
Java resolve
---
 .../org/jetbrains/kotlin/idea/project/ResolveElementCache.kt  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/ResolveElementCache.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/ResolveElementCache.kt
index 6303bee5564..6cfc43274cb 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/ResolveElementCache.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/ResolveElementCache.kt
@@ -77,7 +77,7 @@ class ResolveElementCache(
         CachedValuesManager.getManager(project).createCachedValue(
             CachedValueProvider<MutableMap<KtElement, ResolveElementCache.CachedFullResolve>> {
                 CachedValueProvider.Result.create(
-                    ContainerUtil.createConcurrentSoftValueMap<KtElement, CachedFullResolve>(),
+                    ContainerUtil.createConcurrentWeakKeySoftValueMap<KtElement, CachedFullResolve>(),
                     PsiModificationTracker.OUT_OF_CODE_BLOCK_MODIFICATION_COUNT,
                     resolveSession.exceptionTracker
                 )
@@ -103,7 +103,7 @@ class ResolveElementCache(
         CachedValuesManager.getManager(project).createCachedValue(
             CachedValueProvider<MutableMap<KtExpression, ResolveElementCache.CachedPartialResolve>> {
                 CachedValueProvider.Result.create(
-                    ContainerUtil.createConcurrentSoftValueMap<KtExpression, CachedPartialResolve>(),
+                    ContainerUtil.createConcurrentWeakKeySoftValueMap<KtExpression, CachedPartialResolve>(),
                     PsiModificationTracker.MODIFICATION_COUNT,
                     resolveSession.exceptionTracker
                 )