p.location-badge.
  exported from <a href='../di'>angular2/di</a>
  defined in <a href="https://github.com/angular/angular/tree/2.0.0-alpha.32/modules/angular2/src/di/metadata.ts#L123-L160">angular2/src/di/metadata.ts (line 123)</a>

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  Specifies that an injector should retrieve a dependency from any ancestor from the same boundary.
  
  ## Example
  
  ```
  class Dependency {
  }
  
  class NeedsDependency {
    constructor(public @Ancestor() dependency:Dependency) {}
  }
  
  var parent = Injector.resolveAndCreate([
    bind(Dependency).toClass(AncestorDependency)
  ]);
  var child = parent.resolveAndCreateChild([]);
  var grandChild = child.resolveAndCreateChild([NeedsDependency, Depedency]);
  var nd = grandChild.get(NeedsDependency);
  expect(nd.dependency).toBeAnInstanceOf(AncestorDependency);
  ```
  
  You can make an injector to retrive a dependency either from itself or its ancestor by setting
  self to true.
  
  ```
  class NeedsDependency {
    constructor(public @Ancestor({self:true}) dependency:Dependency) {}
  }
  ```
  
  
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