Add FunctionElement.isEntryPoint getter.

pkg/analyzer/lib/src/generated/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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.element;
 
 import 'dart:collection';
@@ skipping 3915 matching lines @@
  * variable.
  */
 abstract class FunctionElement implements ExecutableElement, LocalElement {
   /**
    * The name of the method that can be implemented by a class to allow its
    * instances to be invoked as if they were a function.
    */
   static final String CALL_METHOD_NAME = "call";
 
   /**
+   * The name of the function used as an entry point.
+   */
+  static const String MAIN_FUNCTION_NAME = "main";
+
+  /**
    * The name of the method that will be invoked if an attempt is made to invoke
    * an undefined method on an object.
    */
   static final String NO_SUCH_METHOD_METHOD_NAME = "noSuchMethod";
 
   /**
    * The name of the synthetic function defined for libraries that are deferred.
    */
   static final String LOAD_LIBRARY_NAME = "loadLibrary";

[Brian Wilkerson, 2015/03/11 17:19:23]

Could you move this before MAIN... so that they're in alphabetic order? Thanks.

[scheglov, 2015/03/11 17:20:59]

Done.

 
   /**
+   * Return `true` if the function is an entry point, i.e. a top-level function
+   * and has the name `main`.
+   */
+  bool get isEntryPoint;
+
+  /**
    * Return the resolved function declaration node that declares this element.
    *
    * This method is expensive, because resolved AST might be evicted from cache,
    * so parsing and resolving will be performed.
    */
   @override
   FunctionDeclaration get node;
 }
 
 /**
@@ skipping 37 matching lines @@
   @override
   String get identifier {
     String identifier = super.identifier;
     if (!isStatic) {
       identifier += "@$nameOffset";
     }
     return identifier;
   }
 
   @override
+  bool get isEntryPoint {
+    return isStatic && displayName == FunctionElement.MAIN_FUNCTION_NAME;
+  }
+
+  @override
   bool get isStatic => enclosingElement is CompilationUnitElement;
 
   @override
   ElementKind get kind => ElementKind.FUNCTION;
 
   @override
   FunctionDeclaration get node =>
       getNodeMatching((node) => node is FunctionDeclaration);
 
   @override
@@ skipping 6394 matching lines @@
     // void <: void (by reflexivity)
     // bottom <: void (as bottom is a subtype of all types).
     // void <: dynamic (as dynamic is a supertype of all types)
     return identical(type, this) || type.isDynamic;
   }
 
   @override
   VoidTypeImpl substitute2(
       List<DartType> argumentTypes, List<DartType> parameterTypes) => this;
 }