K2: use MutableOrEmptyList for context receivers

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirCallableReferenceAccessBuilder.kt

@@ -50,7 +50,7 @@ class FirCallableReferenceAccessBuilder : FirQualifiedAccessBuilder, FirAnnotati
             source,
             typeRef,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             explicitReceiver,
             dispatchReceiver,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirComponentCallBuilder.kt

@@ -53,7 +53,7 @@ class FirComponentCallBuilder : FirCallBuilder, FirAnnotationContainerBuilder, F
         return FirComponentCallImpl(
             source,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             dispatchReceiver,
             extensionReceiver,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirDelegatedConstructorCallBuilder.kt

@@ -47,7 +47,7 @@ class FirDelegatedConstructorCallBuilder : FirCallBuilder, FirAnnotationContaine
             source,
             annotations.toMutableOrEmpty(),
             argumentList,
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             constructedTypeRef,
             dispatchReceiver,
             calleeReference,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirFunctionCallBuilder.kt

@@ -55,7 +55,7 @@ open class FirFunctionCallBuilder : FirAbstractFunctionCallBuilder, FirAnnotatio
             source,
             typeRef,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             explicitReceiver,
             dispatchReceiver,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirImplicitInvokeCallBuilder.kt

@@ -51,7 +51,7 @@ open class FirImplicitInvokeCallBuilder : FirAbstractFunctionCallBuilder, FirAnn
         return FirImplicitInvokeCallImpl(
             source,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             explicitReceiver,
             dispatchReceiver,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirIntegerLiteralOperatorCallBuilder.kt

@@ -53,7 +53,7 @@ open class FirIntegerLiteralOperatorCallBuilder : FirAbstractFunctionCallBuilder
             source,
             typeRef,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             explicitReceiver,
             argumentList,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirPropertyAccessExpressionBuilder.kt

@@ -52,7 +52,7 @@ class FirPropertyAccessExpressionBuilder : FirQualifiedAccessBuilder, FirAnnotat
             typeRef,
             annotations.toMutableOrEmpty(),
             calleeReference,
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             explicitReceiver,
             dispatchReceiver,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirThisReceiverExpressionBuilder.kt

@@ -47,7 +47,7 @@ class FirThisReceiverExpressionBuilder : FirQualifiedAccessBuilder, FirAnnotatio
             source,
             typeRef,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             calleeReference,
             isImplicit,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirVariableAssignmentBuilder.kt

@@ -46,7 +46,7 @@ class FirVariableAssignmentBuilder : FirQualifiedAccessBuilder, FirAnnotationCon
         return FirVariableAssignmentImpl(
             calleeReference,
             annotations.toMutableOrEmpty(),
-            contextReceiverArguments,
+            contextReceiverArguments.toMutableOrEmpty(),
             typeArguments,
             explicitReceiver,
             dispatchReceiver,

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirCallableReferenceAccessImpl.kt

@@ -29,7 +29,7 @@ internal class FirCallableReferenceAccessImpl(
     override var source: KtSourceElement?,
     override var typeRef: FirTypeRef,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var explicitReceiver: FirExpression?,
     override var dispatchReceiver: FirExpression,
@@ -102,8 +102,7 @@ internal class FirCallableReferenceAccessImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirComponentCallImpl.kt

@@ -34,7 +34,7 @@ import org.jetbrains.kotlin.fir.builder.toMutableOrEmpty
 internal class FirComponentCallImpl(
     override var source: KtSourceElement?,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var dispatchReceiver: FirExpression,
     override var extensionReceiver: FirExpression,
@@ -113,8 +113,7 @@ internal class FirComponentCallImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirDelegatedConstructorCallImpl.kt

@@ -29,7 +29,7 @@ internal class FirDelegatedConstructorCallImpl(
     override val source: KtSourceElement?,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
     override var argumentList: FirArgumentList,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override var constructedTypeRef: FirTypeRef,
     override var dispatchReceiver: FirExpression,
     override var calleeReference: FirReference,
@@ -78,8 +78,7 @@ internal class FirDelegatedConstructorCallImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceConstructedTypeRef(newConstructedTypeRef: FirTypeRef) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirFunctionCallImpl.kt

@@ -31,7 +31,7 @@ open class FirFunctionCallImpl @FirImplementationDetail constructor(
     override var source: KtSourceElement?,
     override var typeRef: FirTypeRef,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var explicitReceiver: FirExpression?,
     override var dispatchReceiver: FirExpression,
@@ -107,8 +107,7 @@ open class FirFunctionCallImpl @FirImplementationDetail constructor(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirImplicitInvokeCallImpl.kt

@@ -31,7 +31,7 @@ import org.jetbrains.kotlin.fir.FirImplementationDetail
 internal class FirImplicitInvokeCallImpl(
     override var source: KtSourceElement?,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var explicitReceiver: FirExpression?,
     override var dispatchReceiver: FirExpression,
@@ -109,8 +109,7 @@ internal class FirImplicitInvokeCallImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirIntegerLiteralOperatorCallImpl.kt

@@ -31,7 +31,7 @@ internal class FirIntegerLiteralOperatorCallImpl(
     override var source: KtSourceElement?,
     override var typeRef: FirTypeRef,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var explicitReceiver: FirExpression?,
     override var argumentList: FirArgumentList,
@@ -117,8 +117,7 @@ internal class FirIntegerLiteralOperatorCallImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirPropertyAccessExpressionImpl.kt

@@ -30,7 +30,7 @@ class FirPropertyAccessExpressionImpl @FirImplementationDetail constructor(
     override var typeRef: FirTypeRef,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
     override var calleeReference: FirReference,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var explicitReceiver: FirExpression?,
     override var dispatchReceiver: FirExpression,
@@ -106,8 +106,7 @@ class FirPropertyAccessExpressionImpl @FirImplementationDetail constructor(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirThisReceiverExpressionImpl.kt

@@ -30,7 +30,7 @@ internal class FirThisReceiverExpressionImpl(
     override var source: KtSourceElement?,
     override var typeRef: FirTypeRef,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var calleeReference: FirThisReference,
     override val isImplicit: Boolean,
@@ -104,8 +104,7 @@ internal class FirThisReceiverExpressionImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirVariableAssignmentImpl.kt

@@ -28,7 +28,7 @@ import org.jetbrains.kotlin.fir.FirImplementationDetail
 internal class FirVariableAssignmentImpl(
     override var calleeReference: FirReference,
     override var annotations: MutableOrEmptyList<FirAnnotation>,
-    override val contextReceiverArguments: MutableList<FirExpression>,
+    override var contextReceiverArguments: MutableOrEmptyList<FirExpression>,
     override val typeArguments: MutableList<FirTypeProjection>,
     override var explicitReceiver: FirExpression?,
     override var dispatchReceiver: FirExpression,
@@ -110,8 +110,7 @@ internal class FirVariableAssignmentImpl(
     }
 
     override fun replaceContextReceiverArguments(newContextReceiverArguments: List<FirExpression>) {
-        contextReceiverArguments.clear()
+        contextReceiverArguments = newContextReceiverArguments.toMutableOrEmpty()
-        contextReceiverArguments.addAll(newContextReceiverArguments)
     }
 
     override fun replaceTypeArguments(newTypeArguments: List<FirTypeProjection>) {

compiler/fir/tree/src/org/jetbrains/kotlin/fir/visitors/FirTransformerUtil.kt

@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.fir.visitors
 import org.jetbrains.kotlin.fir.FirElement
 import org.jetbrains.kotlin.fir.FirPureAbstractElement
 import org.jetbrains.kotlin.fir.MutableOrEmptyList
-import org.jetbrains.kotlin.fir.expressions.FirAnnotation
 
 fun <T : FirElement, D> T.transformSingle(transformer: FirTransformer<D>, data: D): T {
     return (this as FirPureAbstractElement).transform<T, D>(transformer, data)
@@ -25,7 +24,7 @@ fun <T : FirElement, D> MutableList<T>.transformInplace(transformer: FirTransfor
     }
 }
 
-fun <T : FirAnnotation, D> MutableOrEmptyList<T>.transformInplace(transformer: FirTransformer<D>, data: D) {
+fun <T : FirElement, D> MutableOrEmptyList<T>.transformInplace(transformer: FirTransformer<D>, data: D) {
     list?.transformInplace(transformer, data)
 }
 

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/NodeConfigurator.kt

@@ -202,7 +202,7 @@ object NodeConfigurator : AbstractFieldConfigurator<FirTreeBuilder>(FirTreeBuild
         }
 
         contextReceiverArgumentListOwner.configure {
-            +fieldList("contextReceiverArguments", expression, withReplace = true)
+            +fieldList("contextReceiverArguments", expression, useMutableOrEmpty = true, withReplace = true)
         }
 
         qualifiedAccess.configure {