Library custom formatters

tool/input_sdk/private/ddc_runtime/rtti.dart

 // Copyright (c) 2015, 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 library defines the association between runtime objects and
 /// runtime types.
 part of dart._runtime;
 
 /// Runtime type information.  This module defines the mapping from
 /// runtime objects to their runtime type information.  See the types
@@ skipping 56 matching lines @@
   return closure;
 }
 
 lazyFn(closure, computeType) {
   tagLazy(closure, computeType);
   return closure;
 }
 
 // TODO(vsm): How should we encode the runtime type?
 final _runtimeType = JS('', 'Symbol("_runtimeType")');
+final isNamedConstructor = JS('', 'Symbol("isNamedConstructor")');
 
 _checkPrimitiveType(obj) {
   // TODO(jmesserly): JS is used to prevent type literal wrapping.  Is there a
   // better way we can handle this?  (sra: It is super dodgy that the values
   // passed to JS are different to the values passed to a regular function - the
   // semantics are not longer that of calling an interpreter. dart2js has other
   // special functions, we could do the same.)
 
   // Check for null and undefined
   if (obj == null) return JS('', '#', Null);
@@ skipping 20 matching lines @@
 
   return null;
 }
 
 getFunctionType(obj) {
   // TODO(vsm): Encode this properly on the function for Dart-generated code.
   var args = JS('', 'Array(#.length).fill(#)', obj, dynamic);
   return definiteFunctionType(bottom, args, JS('', 'void 0'));
 }
 
-/// Returns an the runtime representation of the type of obj.
+/// Returns the runtime representation of the type of obj.
 ///
 /// The resulting object is used internally for runtime type checking. This is
 /// different from the user-visible Type object returned by calling
 /// `runtimeType` on some Dart object.
 getReifiedType(obj) {
   var result = _checkPrimitiveType(obj);
   if (result != null) return result;
   return _nonPrimitiveRuntimeType(obj);
 }
 
@@ skipping 29 matching lines @@
   if (JS('bool', '#.hasOwnProperty(#)', type, _typeObject)) {
     return JS('', '#[#]', type, _typeObject);
   }
   return JS('', '#[#] = new #(#)', type, _typeObject, WrappedType, type);
 }
 
 /// Given a WrappedType, return the internal runtime type object.
 unwrapType(obj) => obj._wrappedType;
 
 _getRuntimeType(value) => JS('', '#[#]', value, _runtimeType);
+getIsNamedConstructor(value) => JS('', '#[#]', value, isNamedConstructor);
+// TODO(bmilligan): Define the symbol in rtti.dart instead of dart_library.js
+// and get rid of the call to dart_library in the JS here.
+getDartLibraryName(value) => JS('', '#[dart_library.dartLibraryName]', value);
 
 /// Tag the runtime type of [value] to be type [t].
 void tag(value, t) {
   JS('', '#[#] = #', value, _runtimeType, t);
 }
 
 void tagComputed(value, compute) {
   JS('', '#(#, #, { get: # })', defineProperty, value, _runtimeType, compute);
 }
 
 void tagLazy(value, compute) {
   JS('', '#(#, #, { get: # })',
       defineLazyProperty, value, _runtimeType, compute);
 }