From 890578a6a066883e56b2fe8734166237cda08541 Mon Sep 17 00:00:00 2001
From: Alexey Sedunov <alexey.sedunov@jetbrains.com>
Date: Mon, 28 Nov 2016 12:12:00 +0300
Subject: [PATCH] Introduce Type Alias: Forbid unchecking of required type
 arguments

---
 .../ui/IntroduceTypeAliasParameterTablePanel.kt               | 2 ++
 .../refactoring/introduce/ui/AbstractParameterTablePanel.kt   | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceTypeAlias/ui/IntroduceTypeAliasParameterTablePanel.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceTypeAlias/ui/IntroduceTypeAliasParameterTablePanel.kt
index 40df3013872..3d7a84c89aa 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceTypeAlias/ui/IntroduceTypeAliasParameterTablePanel.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceTypeAlias/ui/IntroduceTypeAliasParameterTablePanel.kt
@@ -36,6 +36,8 @@ open class IntroduceTypeAliasParameterTablePanel : AbstractParameterTablePanel<T
         super.init()
     }
 
+    override fun isCheckMarkColumnEditable() = false
+
     val selectedTypeParameterInfos: List<TypeParameterInfo>
         get() = parameterInfos.filter { it.isEnabled }
 
diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/ui/AbstractParameterTablePanel.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/ui/AbstractParameterTablePanel.kt
index 342f52e9c42..2d004c982d4 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/ui/AbstractParameterTablePanel.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/ui/AbstractParameterTablePanel.kt
@@ -150,6 +150,8 @@ abstract class AbstractParameterTablePanel<Param, UIParam : AbstractParameterTab
 
     }
 
+    protected open fun isCheckMarkColumnEditable() = true
+
     protected open inner class TableModelBase : AbstractTableModel(), EditableModel {
         override fun addRow() = throw IllegalAccessError("Not implemented")
 
@@ -209,7 +211,7 @@ abstract class AbstractParameterTablePanel<Param, UIParam : AbstractParameterTab
         override fun isCellEditable(rowIndex: Int, columnIndex: Int): Boolean {
             val info = parameterInfos[rowIndex]
             return when (columnIndex) {
-                CHECKMARK_COLUMN -> isEnabled
+                CHECKMARK_COLUMN -> isEnabled && isCheckMarkColumnEditable()
                 PARAMETER_NAME_COLUMN -> isEnabled && info.isEnabled
                 else -> false
             }