From 882a12d91681e43b10e789876aff0de9584e1888 Mon Sep 17 00:00:00 2001
From: Nikolay Krasko <nikolay.krasko@jetbrains.com>
Date: Wed, 10 Oct 2018 22:15:46 +0300
Subject: [PATCH] Exit if it's impossible to create file during copy/past
 (KT-26210)

 #KT-26210 Fixed
---
 .../idea/conversion/copy/KotlinFilePasteProvider.kt       | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/idea/src/org/jetbrains/kotlin/idea/conversion/copy/KotlinFilePasteProvider.kt b/idea/src/org/jetbrains/kotlin/idea/conversion/copy/KotlinFilePasteProvider.kt
index a8c0ab49202..f3470ae9383 100644
--- a/idea/src/org/jetbrains/kotlin/idea/conversion/copy/KotlinFilePasteProvider.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/conversion/copy/KotlinFilePasteProvider.kt
@@ -16,6 +16,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.psi.JavaDirectoryService
 import com.intellij.psi.PsiDocumentManager
 import com.intellij.psi.util.PsiTreeUtil
+import com.intellij.util.IncorrectOperationException
 import org.jetbrains.kotlin.idea.util.application.executeWriteCommand
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtFile
@@ -35,7 +36,12 @@ class KotlinFilePasteProvider : PasteProvider {
         val fileName = (ktFile.declarations.firstOrNull()?.name ?: return) + ".kt"
         val directory = ideView.getOrChooseDirectory() ?: return
         project.executeWriteCommand("Create Kotlin file") {
-            val file = directory.createFile(fileName)
+            val file = try {
+                directory.createFile(fileName)
+            } catch (e: IncorrectOperationException) {
+                return@executeWriteCommand
+            }
+
             val documentManager = PsiDocumentManager.getInstance(project)
             val document = documentManager.getDocument(file)
             if (document != null) {