Inline MethodMirror creation

runtime/lib/mirrors_impl.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.
 
 // VM-specific implementation of the dart:mirrors library.
 
 // These values are allowed to be passed directly over the wire.
 bool _isSimpleValue(var value) {
   return (value == null || value is num || value is String || value is bool);
 }
@@ skipping 872 matching lines @@
       native 'LibraryMirror_invokeGetter';
 
   _invokeSetter(reflectee, setterName, value)
       native 'LibraryMirror_invokeSetter';
 }
 
 class _LocalMethodMirrorImpl extends _LocalDeclarationMirrorImpl
     implements MethodMirror {
   _LocalMethodMirrorImpl(reflectee,
                          this._owner,
-                         this.parameters,
                          this.isStatic,
                          this.isAbstract,
                          this.isGetter,
                          this.isSetter,
                          this.isConstructor,
                          this.isConstConstructor,
                          this.isGenerativeConstructor,
                          this.isRedirectingConstructor,
                          this.isFactoryConstructor) : super(reflectee);
 
@@ skipping 44 matching lines @@
     if (_returnType == null) {
       if (isConstructor) {
         _returnType = owner;
       } else {
         _returnType = _MethodMirror_return_type(_reflectee);
       }
     }
     return _returnType;
   }
 
-  final List<ParameterMirror> parameters;
+  List<ParameterMirror> _parameters = null;
+  List<ParameterMirror> get parameters {
+    if (_parameters == null) {
+      _parameters = _MethodMirror_parameters(_reflectee);
+    }
+    return _parameters;
+  }
 
   final bool isStatic;
   final bool isAbstract;
 
   bool get isRegularMethod => !isGetter && !isSetter && !isConstructor;
 
   TypeMirror get isOperator {
     throw new UnimplementedError(
         'MethodMirror.isOperator is not implemented');
   }
@@ skipping 31 matching lines @@
   String toString() => "MethodMirror on '${_n(simpleName)}'";
 
   static String _MethodMirror_name(reflectee)
       native "MethodMirror_name";
 
   static dynamic _MethodMirror_owner(reflectee)
       native "MethodMirror_owner";
 
   static dynamic _MethodMirror_return_type(reflectee)
       native "MethodMirror_return_type";
+
+  static List<MethodMirror> _MethodMirror_parameters(reflectee)
+      native "MethodMirror_parameters";
 }
 
 class _LocalVariableMirrorImpl extends _LocalDeclarationMirrorImpl
     implements VariableMirror {
   _LocalVariableMirrorImpl(reflectee,
                            String simpleName,
                            this._owner,
                            this._type,
                            this.isStatic,
                            this.isFinal)
@@ skipping 173 matching lines @@
   static Expando<ClassMirror> _classMirrorCache = new Expando("ClassMirror");
   static ClassMirror reflectClass(Type key) {
     var classMirror = _classMirrorCache[key];
     if (classMirror == null) {
       classMirror = makeLocalClassMirror(key);
       _classMirrorCache[key] = classMirror;
     }
     return classMirror;
   }
 }