FIR: implement named arguments #KT-24081 Fixed

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -551,6 +551,12 @@ class FirRenderer(builder: StringBuilder) : FirVisitorVoid() {
         print("${constExpression.kind}(${constExpression.value})")
     }
 
+    override fun visitNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression) {
+        print(namedArgumentExpression.name)
+        print(" = ")
+        namedArgumentExpression.expression.accept(this)
+    }
+
     override fun visitCall(call: FirCall) {
         print("(")
         call.arguments.renderSeparated()

compiler/fir/tree/src/org/jetbrains/kotlin/fir/expressions/FirNamedArgumentExpression.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.fir.expressions
+
+import org.jetbrains.kotlin.fir.visitors.FirVisitor
+import org.jetbrains.kotlin.name.Name
+
+interface FirNamedArgumentExpression : FirExpression {
+    val name: Name
+
+    val expression: FirExpression
+
+    override fun <R, D> accept(visitor: FirVisitor<R, D>, data: D): R =
+        visitor.visitNamedArgumentExpression(this, data)
+
+    override fun <R, D> acceptChildren(visitor: FirVisitor<R, D>, data: D) {
+        expression.accept(visitor, data)
+        super.acceptChildren(visitor, data)
+    }
+}

compiler/fir/tree/src/org/jetbrains/kotlin/fir/expressions/impl/FirNamedArgumentExpressionImpl.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.fir.expressions.impl
+
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.fir.FirElement
+import org.jetbrains.kotlin.fir.FirSession
+import org.jetbrains.kotlin.fir.expressions.FirExpression
+import org.jetbrains.kotlin.fir.expressions.FirNamedArgumentExpression
+import org.jetbrains.kotlin.fir.transformSingle
+import org.jetbrains.kotlin.fir.visitors.FirTransformer
+import org.jetbrains.kotlin.name.Name
+
+class FirNamedArgumentExpressionImpl(
+    session: FirSession,
+    psi: PsiElement?,
+    override val name: Name,
+    override var expression: FirExpression
+) : FirNamedArgumentExpression, FirAbstractExpression(session, psi) {
+    override fun <D> transformChildren(transformer: FirTransformer<D>, data: D): FirElement {
+        expression = expression.transformSingle(transformer, data)
+        return super<FirAbstractExpression>.transformChildren(transformer, data)
+    }
+}

compiler/fir/tree/visitors/org/jetbrains/kotlin/fir/visitors/FirTransformerGenerated.kt

@@ -256,6 +256,10 @@ abstract class FirTransformer<in D> : FirVisitor<CompositeTransformResult<FirEle
         return transformJump(returnExpression, data)
     }
 
+    open fun transformNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression, data: D): CompositeTransformResult<FirStatement> {
+        return transformExpression(namedArgumentExpression, data)
+    }
+
     open fun transformThrowExpression(throwExpression: FirThrowExpression, data: D): CompositeTransformResult<FirStatement> {
         return transformExpression(throwExpression, data)
     }
@@ -564,6 +568,10 @@ abstract class FirTransformer<in D> : FirVisitor<CompositeTransformResult<FirEle
         return transformModifiableQualifiedAccess(modifiableQualifiedAccess, data)
     }
 
+    final override fun visitNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression, data: D): CompositeTransformResult<FirElement> {
+        return transformNamedArgumentExpression(namedArgumentExpression, data)
+    }
+
     final override fun visitNamedDeclaration(namedDeclaration: FirNamedDeclaration, data: D): CompositeTransformResult<FirElement> {
         return transformNamedDeclaration(namedDeclaration, data)
     }

compiler/fir/tree/visitors/org/jetbrains/kotlin/fir/visitors/FirVisitorGenerated.kt

@@ -256,6 +256,10 @@ abstract class FirVisitor<out R, in D> {
         return visitJump(returnExpression, data)
     }
 
+    open fun visitNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression, data: D): R {
+        return visitExpression(namedArgumentExpression, data)
+    }
+
     open fun visitThrowExpression(throwExpression: FirThrowExpression, data: D): R {
         return visitExpression(throwExpression, data)
     }

compiler/fir/tree/visitors/org/jetbrains/kotlin/fir/visitors/FirVisitorVoidGenerated.kt

@@ -256,6 +256,10 @@ abstract class FirVisitorVoid : FirVisitor<Unit, Nothing?>() {
         visitJump(returnExpression, null)
     }
 
+    open fun visitNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression) {
+        visitExpression(namedArgumentExpression, null)
+    }
+
     open fun visitThrowExpression(throwExpression: FirThrowExpression) {
         visitExpression(throwExpression, null)
     }
@@ -564,6 +568,10 @@ abstract class FirVisitorVoid : FirVisitor<Unit, Nothing?>() {
         visitModifiableQualifiedAccess(modifiableQualifiedAccess)
     }
 
+    final override fun visitNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression, data: Nothing?) {
+        visitNamedArgumentExpression(namedArgumentExpression)
+    }
+
     final override fun visitNamedDeclaration(namedDeclaration: FirNamedDeclaration, data: Nothing?) {
         visitNamedDeclaration(namedDeclaration)
     }