Converted Observatory code-ref function-ref element

runtime/observatory/lib/src/models/objects/function.dart

+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file
+
+part of models;
+
+enum FunctionKind {
+  regular,
+  closure,
+  getter,
+  setter,
+  constructor,
+  implicitGetter,
+  implicitSetter,
+  implicitStaticFinalGetter,
+  irregexpFunction,
+  staticInitializer,
+  methodExtractor,
+  noSuchMethodDispatcher,
+  invokeFieldDispatcher,
+  collected,
+  native,
+  stub,
+  tag,
+  signatureFunction
+}
+
+bool isSyntheticFunction(FunctionKind kind) {
+  switch (kind) {
+    case FunctionKind.collected:
+    case FunctionKind.native:
+    case FunctionKind.stub:
+    case FunctionKind.tag:
+      return true;
+    default:
+      return false;
+  }
+}
+
+bool isDartFunction(FunctionKind kind) => !isSyntheticFunction(kind);
+bool isStubFunction(FunctionKind kind) => kind == FunctionKind.stub;
+bool hasDartCode(FunctionKind kind) =>
+    isDartFunction(kind) || isStubFunction(kind);
+
+abstract class FunctionRef extends ObjectRef {
+  /// The name of this class.
+  String get name;
+
+  /// The owner of this function, which can be a LibraryRef, ClassRef,
+  /// or a FunctionRef.
+  ObjectRef get dartOwner; // owner
+
+  /// Is this function static?
+  bool get isStatic;
+
+  /// Is this function const?
+  bool get isConst;
+
+  /// The kind of the function.
+  FunctionKind get kind;
+}
+
+abstract class Function extends Object implements FunctionRef {
+  /// The location of this function in the source code. [optional]
+  SourceLocation get location;
+
+  /// The compiled code associated with this function. [optional]
+  CodeRef get code;
+}