Move util backend function isNamedFun && isNamedFunOrLambda to frontend

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/FunctionExpressionDescriptor.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2010-2015 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.descriptors.impl;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
+import org.jetbrains.kotlin.descriptors.SourceElement;
+import org.jetbrains.kotlin.descriptors.annotations.Annotations;
+import org.jetbrains.kotlin.name.Name;
+
+public class FunctionExpressionDescriptor extends SimpleFunctionDescriptorImpl {
+    public FunctionExpressionDescriptor(
+            @NotNull DeclarationDescriptor containingDeclaration,
+            @NotNull Annotations annotations,
+            @NotNull Name name,
+            @NotNull Kind kind,
+            @NotNull SourceElement source
+    ) {
+        super(containingDeclaration, null, annotations, name, kind, source);
+    }
+}

core/descriptors/src/org/jetbrains/kotlin/resolve/DescriptorUtils.java

@@ -22,6 +22,8 @@ import org.jetbrains.annotations.Nullable;
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns;
 import org.jetbrains.kotlin.descriptors.*;
 import org.jetbrains.kotlin.descriptors.impl.AnonymousFunctionDescriptor;
+import org.jetbrains.kotlin.descriptors.impl.FunctionExpressionDescriptor;
+import org.jetbrains.kotlin.descriptors.impl.SimpleFunctionDescriptorImpl;
 import org.jetbrains.kotlin.name.FqName;
 import org.jetbrains.kotlin.name.FqNameUnsafe;
 import org.jetbrains.kotlin.name.Name;
@@ -236,10 +238,21 @@ public class DescriptorUtils {
         return false;
     }
 
-    public static boolean isFunctionLiteral(@NotNull FunctionDescriptor descriptor) {
+    public static boolean isFunctionLiteral(@Nullable DeclarationDescriptor descriptor) {
         return descriptor instanceof AnonymousFunctionDescriptor;
     }
 
+    public static boolean isLocalFunction(@Nullable DeclarationDescriptor descriptor) {
+        if (descriptor != null && descriptor.getClass() == SimpleFunctionDescriptorImpl.class) {
+            return ((SimpleFunctionDescriptorImpl) descriptor).getVisibility() == Visibilities.LOCAL;
+        }
+        return false;
+    }
+
+    public static boolean isFunctionExpression(@Nullable DeclarationDescriptor descriptor) {
+        return descriptor instanceof FunctionExpressionDescriptor;
+    }
+
     public static boolean isDefaultObject(@Nullable DeclarationDescriptor descriptor) {
         return isKindOf(descriptor, ClassKind.OBJECT) && ((ClassDescriptor) descriptor).isDefaultObject();
     }