From 9266a2cdba645e8b4a6cc68dbebad5a468728c38 Mon Sep 17 00:00:00 2001
From: Simon Ogorodnik <simon.ogorodnik@jetbrains.com>
Date: Wed, 15 May 2019 15:48:54 +0300
Subject: [PATCH] Add equals/hashCode to some FIR cone types

---
 .../jetbrains/kotlin/fir/types/ConeTypes.kt   |  4 ++--
 .../jetbrains/kotlin/fir/types/impl/Impl.kt   | 20 +++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt
index 3669a3b62bb..927413c0ad2 100644
--- a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt
+++ b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt
@@ -30,12 +30,12 @@ interface ConeTypedProjection {
     val type: ConeKotlinType
 }
 
-class ConeKotlinTypeProjectionIn(override val type: ConeKotlinType) : ConeKotlinTypeProjection(), ConeTypedProjection {
+data class ConeKotlinTypeProjectionIn(override val type: ConeKotlinType) : ConeKotlinTypeProjection(), ConeTypedProjection {
     override val kind: ProjectionKind
         get() = ProjectionKind.IN
 }
 
-class ConeKotlinTypeProjectionOut(override val type: ConeKotlinType) : ConeKotlinTypeProjection(), ConeTypedProjection {
+data class ConeKotlinTypeProjectionOut(override val type: ConeKotlinType) : ConeKotlinTypeProjection(), ConeTypedProjection {
     override val kind: ProjectionKind
         get() = ProjectionKind.OUT
 }
diff --git a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt
index 9601c98a8b7..1ec5631ee6d 100644
--- a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt
+++ b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt
@@ -57,4 +57,24 @@ class ConeTypeParameterTypeImpl(
         get() = EMPTY_ARRAY
 
     override val nullability: ConeNullability = ConeNullability.create(isNullable)
+
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as ConeTypeParameterTypeImpl
+
+        if (lookupTag != other.lookupTag) return false
+        if (nullability != other.nullability) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = lookupTag.hashCode()
+        result = 31 * result + nullability.hashCode()
+        return result
+    }
+
 }