Introduce DeclarationMirror

pkg/dartdoc/lib/mirrors.dart

 // Copyright (c) 2012, 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.
 
 #library('mirrors');
 
 #import('dart:io');
 #import('dart:uri');
 
 // TODO(rnystrom): Use "package:" URL (#4968).
@@ skipping 48 matching lines @@
 }
 
 
 /**
  * An entity in the mirror system.
  */
 abstract class Mirror {
   static const String UNARY_MINUS = 'unary-';
 
   /**
+   * Returns the mirror system which contains this mirror.
+   */
+  MirrorSystem get system;
+}
+
+abstract class DeclarationMirror implements Mirror {
+  /**
    * The simple name of the entity. The simple name is unique within the
    * scope of the entity declaration.
    *
    * The simple name is in most cases the declared single identifier name of
    * the entity, such as 'method' for a method [:void method() {...}:]. For an
    * unnamed constructor for [:class Foo:] the simple name is 'Foo'. For a
    * constructor for [:class Foo:] named 'named' the simple name is 'Foo.named'.
    * For a property [:foo:] the simple name of the getter method is 'foo' and
    * the simple name of the setter is 'foo='. For operators the simple name is
    * the operator itself, for example '+' for [:operator +:].
@@ skipping 10 matching lines @@
    */
   String get displayName;
 
   /**
    * Returns the name of this entity qualified by is enclosing context. For
    * instance, the qualified name of a method 'method' in class 'Class' in
    * library 'library' is 'library.Class.method'.
    */
   String get qualifiedName;
 
-  /**
-   * Returns the mirror system which contains this mirror.
-   */
-  MirrorSystem get system;
 }
 
 /**
  * Common interface for interface types and libraries.
  */
 abstract class ObjectMirror implements Mirror {
 
   /**
    * Returns an unmodifiable map of the members of declared in this type or
    * library.
    */
   Map<String, MemberMirror> get declaredMembers;
 }
 
 /**
  * A library.
  */
-abstract class LibraryMirror extends ObjectMirror {
+abstract class LibraryMirror implements ObjectMirror, DeclarationMirror {
   /**
    * The name of the library, as given in #library().
    */
   String get simpleName;
 
   /**
    * Returns an iterable over all types in the library.
    */
   Map<String, ClassMirror> get types;
 
   /**
    * Returns the source location for this library.
    */
   Location get location;
 
   /**
    * Returns the canonical URI for this library.
    */
   Uri get uri;
 }
 
 /**
  * Common interface for classes, interfaces, typedefs and type variables.
  */
-abstract class TypeMirror implements Mirror {
+abstract class TypeMirror implements DeclarationMirror {
   /**
    * Returns the source location for this type.
    */
   Location get location;
 
   /**
    * Returns the library in which this member resides.
    */
   LibraryMirror get library;
 
@@ skipping 140 matching lines @@
   /**
    * Returns the defining type for this typedef. For instance [:void f(int):]
    * for a [:typedef void f(int):].
    */
   TypeMirror get definition;
 }
 
 /**
  * A member of a type, i.e. a field, method or constructor.
  */
-abstract class MemberMirror implements Mirror {
+abstract class MemberMirror implements DeclarationMirror {
   /**
    * Returns the source location for this member.
    */
   Location get location;
 
   /**
    * Returns a mirror on the declaration immediately surrounding the reflectee.
    * This could be a class, interface, library or another method or function.
    */
   ObjectMirror get surroundingDeclaration;
@@ skipping 183 matching lines @@
   /**
    * Returns the URI where the source originated.
    */
   Uri get uri;
 
   /**
    * Returns the text of this source.
    */
   String get text;
 }