From 46f6b33e988546f652fc93155cffb6d077d7a1ca Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Tue, 15 May 2018 17:18:37 +0300
Subject: [PATCH] interruptibility when doing "analyze from here" has to
 perform huge find usages and the user starts typing, to fix IDEA-191450 Idea
 hangs trying to investigate data flow from a `project` parameter of
 PsiBuilderImpl

---
 .../src/com/intellij/slicer/SliceNode.java    | 31 +++++++++----------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/slicer/SliceNode.java b/platform/lang-impl/src/com/intellij/slicer/SliceNode.java
index acc4d6f646cf..86fd6389f0f8 100644
--- a/platform/lang-impl/src/com/intellij/slicer/SliceNode.java
+++ b/platform/lang-impl/src/com/intellij/slicer/SliceNode.java
@@ -17,8 +17,8 @@ package com.intellij.slicer;
 
 import com.intellij.ide.projectView.PresentationData;
 import com.intellij.ide.util.treeView.AbstractTreeNode;
-import com.intellij.ide.util.treeView.AbstractTreeUi;
 import com.intellij.openapi.application.ReadAction;
+import com.intellij.openapi.application.ex.ApplicationManagerEx;
 import com.intellij.openapi.progress.ProcessCanceledException;
 import com.intellij.openapi.progress.ProgressIndicator;
 import com.intellij.openapi.progress.ProgressManager;
@@ -101,23 +101,20 @@ public class SliceNode extends AbstractTreeNode<SliceUsage> implements Duplicate
   }
 
   private List<SliceNode> doGetChildren() {
-    return AbstractTreeUi.calculateYieldingToWriteAction(() -> {
-      final List<SliceNode> children = new ArrayList<>();
-      final ProgressIndicator progress = ProgressManager.getInstance().getProgressIndicator();
-      Processor<SliceUsage> processor = sliceUsage -> {
-        progress.checkCanceled();
-        SliceNode node = new SliceNode(myProject, sliceUsage, targetEqualUsages);
-        synchronized (children) {
-          node.index = children.size();
-          children.add(node);
-        }
-        return true;
-      };
+    final List<SliceNode> children = new ArrayList<>();
+    final ProgressIndicator progress = ProgressManager.getInstance().getProgressIndicator();
+    Processor<SliceUsage> processor = sliceUsage -> {
+      progress.checkCanceled();
+      SliceNode node = new SliceNode(myProject, sliceUsage, targetEqualUsages);
+      synchronized (children) {
+        node.index = children.size();
+        children.add(node);
+      }
+      return true;
+    };
 
-      getValue().processChildren(processor);
-
-      return children;
-    });
+    ApplicationManagerEx.getApplicationEx().executeByImpatientReader(() -> getValue().processChildren(processor));
+    return children;
   }
 
   SliceNode getNext(List parentChildren) {