Expose function contained in GenericTypeAliasImpl.

pkg/analyzer/lib/dart/element/element.dart

 // Copyright (c) 2014, 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.
 
 /**
  * Defines the element model. The element model describes the semantic (as
  * opposed to syntactic) structure of Dart code. The syntactic structure of the
  * code is modeled by the [AST structure](../ast/ast.dart).
  *
  * The element model consists of two closely related kinds of objects: elements
@@ skipping 1315 matching lines @@
   @override
   FunctionType get type;
 }
 
 /**
  * The pseudo-declaration that defines a generic function type.
  */
 abstract class GenericFunctionTypeElement implements FunctionTypedElement {}
 
 /**
+ * A [FunctionTypeAliasElement] whose returned function type has a [type]
+ * parameter.
+ */

[Brian Wilkerson, 2017/03/30 14:43:50]

Please add the disclaimer:

  Clients may not extend, implement or mix-in this class.

I see that I forgot to add this to GenericFunctionTypeElement, so it would be
great if you could add it there too.

[jcollins, 2017/03/30 15:19:35]

Done.

+abstract class GenericTypeAliasElement implements FunctionTypeAliasElement {
+  /**
+   * Return the generic function type element representing the generic function
+   * type on the right side of the equals.
+   */
+  GenericFunctionTypeElement get function;
+}
+
+/**
  * A combinator that causes some of the names in a namespace to be hidden when
  * being imported.
  *
  * Clients may not extend, implement or mix-in this class.
  */
 abstract class HideElementCombinator implements NamespaceCombinator {
   /**
    * Return a list containing the names that are not to be made visible in the
    * importing library even if they are defined in the imported library.
    */
@@ skipping 723 matching lines @@
   DartType get type;
 
   /**
    * Return a representation of the value of this variable, forcing the value
    * to be computed if it had not previously been computed, or `null` if either
    * this variable was not declared with the 'const' modifier or if the value of
    * this variable could not be computed because of errors.
    */
   DartObject computeConstantValue();
 }