From e3f85653e9fab789bd7be152d320036d45ae7076 Mon Sep 17 00:00:00 2001
From: Nikolay Krasko <Nikolay.Krasko@jetbrains.com>
Date: Mon, 23 May 2016 18:09:01 +0300
Subject: [PATCH] Don't request write action for
 RemoveUnusedFunctionParameterFix because it's based on refactoring (KT-12440)

Workaround for exception: Refactorings should not be started inside write action because they start progress inside and any read action from the progress task would cause the deadlock

 #KT-12440 Fixed
---
 .../kotlin/idea/quickfix/RemoveUnusedFunctionParameterFix.kt    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/idea/src/org/jetbrains/kotlin/idea/quickfix/RemoveUnusedFunctionParameterFix.kt b/idea/src/org/jetbrains/kotlin/idea/quickfix/RemoveUnusedFunctionParameterFix.kt
index e7f60ce3ff3..c535f27420d 100644
--- a/idea/src/org/jetbrains/kotlin/idea/quickfix/RemoveUnusedFunctionParameterFix.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/quickfix/RemoveUnusedFunctionParameterFix.kt
@@ -30,6 +30,8 @@ class RemoveUnusedFunctionParameterFix(parameter: KtParameter) : KotlinQuickFixA
 
     override fun getText() = "Remove parameter '${element.name}'"
 
+    override fun startInWriteAction(): Boolean = false
+
     override fun invoke(project: Project, editor: Editor?, file: KtFile) {
         val parameterDescriptor = element.resolveToDescriptor() as ValueParameterDescriptor
         ChangeFunctionSignatureFix.runRemoveParameter(parameterDescriptor, element)