[PIR] Use simple fast hashCode

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrAnonymousInitializer.kt

@@ -45,6 +45,9 @@ internal class PersistentIrAnonymousInitializer(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: ClassDescriptor

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrClass.kt

@@ -5,23 +5,9 @@
 
 package org.jetbrains.kotlin.ir.declarations.persistent
 
-import java.util.ArrayList
+import org.jetbrains.kotlin.descriptors.*
-import java.util.Collections
-import org.jetbrains.kotlin.descriptors.ClassDescriptor
-import org.jetbrains.kotlin.descriptors.ClassKind
-import org.jetbrains.kotlin.descriptors.DescriptorVisibility
-import org.jetbrains.kotlin.descriptors.InlineClassRepresentation
-import org.jetbrains.kotlin.descriptors.Modality
-import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
-import org.jetbrains.kotlin.ir.declarations.IrAttributeContainer
+import org.jetbrains.kotlin.ir.declarations.*
-import org.jetbrains.kotlin.ir.declarations.IrClass
-import org.jetbrains.kotlin.ir.declarations.IrDeclaration
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
-import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
-import org.jetbrains.kotlin.ir.declarations.IrValueParameter
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.ClassCarrier
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
@@ -32,6 +18,7 @@ import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.util.IdSignature
 import org.jetbrains.kotlin.name.Name
+import java.util.*
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
@@ -72,6 +59,9 @@ internal class PersistentIrClass(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: ClassDescriptor

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrConstructor.kt

@@ -63,6 +63,9 @@ internal class PersistentIrConstructor(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     override var returnTypeFieldField: IrType = returnType
 

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrEnumEntry.kt

@@ -48,6 +48,9 @@ internal class PersistentIrEnumEntry(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: ClassDescriptor

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrField.kt

@@ -55,6 +55,9 @@ internal class PersistentIrField(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: PropertyDescriptor

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrFunctionCommon.kt

@@ -61,6 +61,9 @@ internal abstract class PersistentIrFunctionCommon(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     override var returnTypeFieldField: IrType = returnType
 

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrLocalDelegatedProperty.kt

@@ -53,6 +53,9 @@ internal class PersistentIrLocalDelegatedProperty(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: VariableDescriptorWithAccessors

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrPropertyCommon.kt

@@ -54,6 +54,9 @@ internal abstract class PersistentIrPropertyCommon(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     override var backingFieldField: IrField? = null
 

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrTypeAlias.kt

@@ -52,6 +52,9 @@ internal class PersistentIrTypeAlias(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: TypeAliasDescriptor

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrTypeParameter.kt

@@ -50,6 +50,9 @@ internal class PersistentIrTypeParameter(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     @ObsoleteDescriptorBasedAPI
     override val descriptor: TypeParameterDescriptor

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrValueParameter.kt

@@ -58,6 +58,9 @@ internal class PersistentIrValueParameter(
     override var originField: IrDeclarationOrigin = origin
     override var removedOn: Int = Int.MAX_VALUE
     override var annotationsField: List<IrConstructorCall> = emptyList()
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 
     override var defaultValueField: IrExpressionBody? = null
 

compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/PersistentIrGenerator.kt

@@ -131,6 +131,13 @@ internal object PersistentIrGenerator {
         +"symbol.bind(this)"
     )
 
+    // import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrDeclarationBase.Companion.hashCodeCounter
+
+    val hashCodeValue = "private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++"
+    val hashCodeImplementation = "override fun hashCode(): Int = hashCodeValue"
+    val equalsImplementation = "override fun equals(other: Any?): Boolean = (this === other)"
+    val hashCodeAndEqualsImpl = +"$hashCodeValue\n$hashCodeImplementation\n$equalsImplementation"
+
     // Proto types
 
     val protoValueParameterType = import("IrValueParameter", protoPackage, "ProtoIrValueParameter")
@@ -222,6 +229,7 @@ internal object PersistentIrGenerator {
         originField,
         removedOn,
         annotationsField,
+        hashCodeAndEqualsImpl
     )
 
     val typeParametersField = Field(

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrDeclarationBase.kt

@@ -7,7 +7,10 @@
 package org.jetbrains.kotlin.ir.declarations.persistent
 
 import org.jetbrains.kotlin.ir.IrElement
-import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.declarations.IrDeclaration
+import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
+import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
+import org.jetbrains.kotlin.ir.declarations.IrSymbolOwner
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.BodyCarrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.DeclarationCarrier
@@ -20,7 +23,6 @@ import org.jetbrains.kotlin.utils.addToStdlib.cast
 interface PersistentIrDeclarationBase<T : DeclarationCarrier> : PersistentIrElementBase<T>, IrDeclaration, DeclarationCarrier {
     var removedOn: Int
 
-
     override var parentField: IrDeclarationParent?
 
     override var parentSymbolField: IrSymbol?
@@ -68,6 +70,10 @@ interface PersistentIrDeclarationBase<T : DeclarationCarrier> : PersistentIrElem
             factory.stageController.lazyLower(this)
         }
     }
+
+    companion object {
+        var hashCodeCounter = 0
+    }
 }
 
 interface PersistentIrElementBase<T : Carrier> : IrElement, Carrier {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/expressions/persistent/PersistentIrBlockBody.kt

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.ir.expressions.persistent
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrBodyBase
+import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrDeclarationBase
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrFactory
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.expressions.IrBlockBody
@@ -44,4 +45,8 @@ internal class PersistentIrBlockBody(
 
     override val statements: MutableList<IrStatement>
         get() = checkEnabled { statementsField }
+
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 }

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/expressions/persistent/PersistentIrExpressionBody.kt

@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.ir.expressions.persistent
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrBodyBase
+import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrDeclarationBase
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrFactory
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.expressions.IrExpression
@@ -49,4 +50,8 @@ internal class PersistentIrExpressionBody private constructor(
         set(e) {
             checkEnabled { expressionField = e }
         }
+
+    private val hashCodeValue: Int = PersistentIrDeclarationBase.hashCodeCounter++
+    override fun hashCode(): Int = hashCodeValue
+    override fun equals(other: Any?): Boolean = (this === other)
 }