[IR] Add IrRawFunctionReference

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

@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.ir.expressions
 
 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
 
 
@@ -35,3 +36,11 @@ interface IrGetEnumValue : IrGetSingletonValue {
     override val symbol: IrEnumEntrySymbol
 }
 
+/**
+ * Platform-specific low-level reference to function.
+ *
+ * On JS platform represent a plain reference to JavaScript function.
+ */
+interface IrRawFunctionReference : IrDeclarationReference {
+    override val symbol: IrFunctionSymbol
+}

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

@@ -0,0 +1,34 @@
+/*
+ * 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.IrRawFunctionReference
+import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
+import org.jetbrains.kotlin.ir.types.IrType
+import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
+
+class IrRawFunctionReferenceImpl(
+    startOffset: Int,
+    endOffset: Int,
+    type: IrType,
+    symbol: IrFunctionSymbol
+) : IrTerminalDeclarationReferenceBase<IrFunctionSymbol>(startOffset, endOffset, type, symbol), 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/visitors/IrElementTransformer.kt

@@ -100,6 +100,8 @@ interface IrElementTransformer<in D> : IrElementVisitor<IrElement, D> {
     override fun visitLocalDelegatedPropertyReference(expression: IrLocalDelegatedPropertyReference, data: D) =
         visitCallableReference(expression, data)
 
+    override fun visitRawFunctionReference(expression: IrRawFunctionReference, data: D) = visitDeclarationReference(expression, data)
+
     override fun visitFunctionExpression(expression: IrFunctionExpression, data: D): IrElement = visitExpression(expression, data)
 
     override fun visitClassReference(expression: IrClassReference, data: D) = visitDeclarationReference(expression, data)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/visitors/IrElementTransformerVoid.kt

@@ -200,6 +200,10 @@ abstract class IrElementTransformerVoid : IrElementTransformer<Nothing?> {
     final override fun visitLocalDelegatedPropertyReference(expression: IrLocalDelegatedPropertyReference, data: Nothing?) =
         visitLocalDelegatedPropertyReference(expression)
 
+    open fun visitRawFunctionReference(expression: IrRawFunctionReference) = visitDeclarationReference(expression)
+    final override fun visitRawFunctionReference(expression: IrRawFunctionReference, data: Nothing?) =
+        visitRawFunctionReference(expression)
+
     open fun visitFunctionExpression(expression: IrFunctionExpression) = visitExpression(expression)
     final override fun visitFunctionExpression(expression: IrFunctionExpression, data: Nothing?): IrElement =
         visitFunctionExpression(expression)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/visitors/IrElementVisitor.kt

@@ -86,6 +86,8 @@ interface IrElementVisitor<out R, in D> {
     fun visitLocalDelegatedPropertyReference(expression: IrLocalDelegatedPropertyReference, data: D) =
         visitCallableReference(expression, data)
 
+    fun visitRawFunctionReference(expression: IrRawFunctionReference, data: D) = visitDeclarationReference(expression, data)
+
     fun visitFunctionExpression(expression: IrFunctionExpression, data: D) = visitExpression(expression, data)
 
     fun visitClassReference(expression: IrClassReference, data: D) = visitDeclarationReference(expression, data)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/visitors/IrElementVisitorVoid.kt

@@ -190,6 +190,10 @@ interface IrElementVisitorVoid : IrElementVisitor<Unit, Nothing?> {
     override fun visitLocalDelegatedPropertyReference(expression: IrLocalDelegatedPropertyReference, data: Nothing?) =
         visitLocalDelegatedPropertyReference(expression)
 
+    fun visitRawFunctionReference(expression: IrRawFunctionReference) = visitDeclarationReference(expression)
+    override fun visitRawFunctionReference(expression: IrRawFunctionReference, data: Nothing?) =
+        visitRawFunctionReference(expression)
+
     fun visitFunctionExpression(expression: IrFunctionExpression) = visitExpression(expression)
     override fun visitFunctionExpression(expression: IrFunctionExpression, data: Nothing?) = visitFunctionExpression(expression)