IR: make IrDeclarationReference and subtypes classes

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/inline/FunctionInlining.kt

@@ -511,7 +511,7 @@ class FunctionInlining(
     private class IrGetValueWithoutLocation(
         override val symbol: IrValueSymbol,
         override val origin: IrStatementOrigin? = null
-    ) : IrExpressionBase(), IrGetValue {
+    ) : IrGetValue() {
         override val startOffset: Int get() = UNDEFINED_OFFSET
         override val endOffset: Int get() = UNDEFINED_OFFSET
 

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrClassReference.kt

@@ -19,9 +19,7 @@ package org.jetbrains.kotlin.ir.expressions
 import org.jetbrains.kotlin.ir.symbols.IrClassifierSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
-
+abstract class IrClassReference : IrDeclarationReference() {
-interface IrClassReference : IrDeclarationReference {
+    abstract override val symbol: IrClassifierSymbol
-    override val symbol: IrClassifierSymbol
+    abstract val classType: IrType
-    val classType: IrType
 }
-

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrDeclarationReference.kt

@@ -16,23 +16,24 @@
 
 package org.jetbrains.kotlin.ir.expressions
 
+import org.jetbrains.kotlin.ir.expressions.impl.IrExpressionBase
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.IrEnumEntrySymbol
 import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSymbol
 
-interface IrDeclarationReference : IrExpression {
+abstract class IrDeclarationReference : IrExpressionBase() {
-    val symbol: IrSymbol
+    abstract val symbol: IrSymbol
 }
 
-interface IrGetSingletonValue : IrDeclarationReference
+abstract class IrGetSingletonValue : IrDeclarationReference()
 
-interface IrGetObjectValue : IrGetSingletonValue {
+abstract class IrGetObjectValue : IrGetSingletonValue() {
-    override val symbol: IrClassSymbol
+    abstract override val symbol: IrClassSymbol
 }
 
-interface IrGetEnumValue : IrGetSingletonValue {
+abstract class IrGetEnumValue : IrGetSingletonValue() {
-    override val symbol: IrEnumEntrySymbol
+    abstract override val symbol: IrEnumEntrySymbol
 }
 
 /**
@@ -40,6 +41,6 @@ interface IrGetEnumValue : IrGetSingletonValue {
  *
  * On JS platform represent a plain reference to JavaScript function.
  */
-interface IrRawFunctionReference : IrDeclarationReference {
+abstract class IrRawFunctionReference : IrDeclarationReference() {
-    override val symbol: IrFunctionSymbol
+    abstract override val symbol: IrFunctionSymbol
 }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrFieldAccessExpression.kt

@@ -19,17 +19,17 @@ package org.jetbrains.kotlin.ir.expressions
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.IrFieldSymbol
 
-interface IrFieldAccessExpression : IrDeclarationReference {
+abstract class IrFieldAccessExpression : IrDeclarationReference() {
-    override val symbol: IrFieldSymbol
+    abstract override val symbol: IrFieldSymbol
 
-    val superQualifierSymbol: IrClassSymbol?
+    abstract val superQualifierSymbol: IrClassSymbol?
 
-    var receiver: IrExpression?
+    var receiver: IrExpression? = null
-    val origin: IrStatementOrigin?
+    abstract val origin: IrStatementOrigin?
 }
 
-interface IrGetField : IrFieldAccessExpression
+abstract class IrGetField : IrFieldAccessExpression()
 
-interface IrSetField : IrFieldAccessExpression {
+abstract class IrSetField : IrFieldAccessExpression() {
-    var value: IrExpression
+    abstract var value: IrExpression
 }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrMemberAccessExpression.kt

@@ -13,7 +13,6 @@ import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.declarations.IrValueParameter
-import org.jetbrains.kotlin.ir.expressions.impl.IrExpressionBase
 import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.defaultType
@@ -23,7 +22,7 @@ import org.jetbrains.kotlin.types.KotlinType
 
 abstract class IrMemberAccessExpression<S : IrSymbol>(
     val typeArgumentsCount: Int
-) : IrExpressionBase(), IrDeclarationReference {
+) : IrDeclarationReference() {
     var dispatchReceiver: IrExpression? = null
     var extensionReceiver: IrExpression? = null
 

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrValueAccessExpression.kt

@@ -19,17 +19,16 @@ package org.jetbrains.kotlin.ir.expressions
 import org.jetbrains.kotlin.ir.symbols.IrValueSymbol
 import org.jetbrains.kotlin.ir.symbols.IrVariableSymbol
 
-interface IrValueAccessExpression : IrDeclarationReference {
+abstract class IrValueAccessExpression : IrDeclarationReference() {
-    override val symbol: IrValueSymbol
+    abstract override val symbol: IrValueSymbol
-    val origin: IrStatementOrigin?
+    abstract val origin: IrStatementOrigin?
 }
 
-interface IrGetValue : IrValueAccessExpression, IrExpressionWithCopy {
+abstract class IrGetValue : IrValueAccessExpression(), IrExpressionWithCopy {
-    override fun copy(): IrGetValue
+    abstract override fun copy(): IrGetValue
 }
 
-interface IrSetVariable : IrValueAccessExpression {
+abstract class IrSetVariable : IrValueAccessExpression() {
-    override val symbol: IrVariableSymbol
+    abstract override val symbol: IrVariableSymbol
-    var value: IrExpression
+    abstract var value: IrExpression
 }
-

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrClassReferenceImpl.kt

@@ -27,7 +27,7 @@ class IrClassReferenceImpl(
     override val type: IrType,
     override val symbol: IrClassifierSymbol,
     override val classType: IrType
-) : IrExpressionBase(), IrClassReference {
+) : IrClassReference() {
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =
         visitor.visitClassReference(this, data)
 }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrFieldExpressionBase.kt

@@ -1,24 +0,0 @@
-/*
- * Copyright 2010-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.ir.expressions.impl
-
-import org.jetbrains.kotlin.ir.expressions.IrExpression
-import org.jetbrains.kotlin.ir.expressions.IrFieldAccessExpression
-
-abstract class IrFieldExpressionBase : IrExpressionBase(), IrFieldAccessExpression {
-    final override var receiver: IrExpression? = null
-}

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrGetEnumValueImpl.kt

@@ -26,7 +26,7 @@ class IrGetEnumValueImpl(
     override val endOffset: Int,
     override val type: IrType,
     override val symbol: IrEnumEntrySymbol,
-) : IrExpressionBase(), IrGetEnumValue {
+) : IrGetEnumValue() {
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R {
         return visitor.visitGetEnumValue(this, data)
     }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrGetFieldImpl.kt

@@ -32,7 +32,7 @@ class IrGetFieldImpl(
     override val type: IrType,
     override val origin: IrStatementOrigin? = null,
     override val superQualifierSymbol: IrClassSymbol? = null,
-) : IrFieldExpressionBase(), IrGetField {
+) : IrGetField() {
     constructor(
         startOffset: Int, endOffset: Int,
         symbol: IrFieldSymbol,

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrGetObjectValueImpl.kt

@@ -26,7 +26,7 @@ class IrGetObjectValueImpl(
     override val endOffset: Int,
     override val type: IrType,
     override val symbol: IrClassSymbol
-) : IrExpressionBase(), IrGetObjectValue {
+) : IrGetObjectValue() {
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =
         visitor.visitGetObjectValue(this, data)
 }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrGetValueImpl.kt

@@ -17,7 +17,7 @@ class IrGetValueImpl(
     override val type: IrType,
     override val symbol: IrValueSymbol,
     override val origin: IrStatementOrigin? = null
-) : IrExpressionBase(), IrGetValue {
+) : IrGetValue() {
     constructor(
         startOffset: Int,
         endOffset: Int,

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrRawFunctionReferenceImpl.kt

@@ -26,7 +26,7 @@ class IrRawFunctionReferenceImpl(
     override val endOffset: Int,
     override val type: IrType,
     override val symbol: IrFunctionSymbol,
-) : IrExpressionBase(), IrRawFunctionReference {
+) : IrRawFunctionReference() {
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R {
         return visitor.visitRawFunctionReference(this, data)
     }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrSetFieldImpl.kt

@@ -32,7 +32,7 @@ class IrSetFieldImpl(
     override val type: IrType,
     override val origin: IrStatementOrigin? = null,
     override val superQualifierSymbol: IrClassSymbol? = null,
-) : IrFieldExpressionBase(), IrSetField {
+) : IrSetField() {
     constructor(
         startOffset: Int, endOffset: Int,
         symbol: IrFieldSymbol,

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrSetVariableImpl.kt

@@ -31,7 +31,7 @@ class IrSetVariableImpl(
     override val symbol: IrVariableSymbol,
     override var value: IrExpression,
     override val origin: IrStatementOrigin?
-) : IrExpressionBase(), IrSetVariable {
+) : IrSetVariable() {
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R {
         return visitor.visitSetVariable(this, data)
     }