Reuse canonicalized type for receiver type if class is not signature class and has no type paramete…

runtime/vm/parser.cc

 // 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.
 
 #include "vm/parser.h"
 
 #include "lib/invocation_mirror.h"
 #include "platform/utils.h"
 #include "vm/ast_transformer.h"
 #include "vm/bootstrap.h"
@@ skipping 11841 matching lines @@
            current_member_->has_static && !current_member_->has_factory;
   }
   ASSERT(!current_function().IsNull());
   return
       current_function().is_static() && !current_function().IsInFactoryScope();
 }
 
 
 const AbstractType* Parser::ReceiverType(const Class& cls) {
   ASSERT(!cls.IsNull());
-  const TypeArguments& type_arguments = TypeArguments::Handle(
-      Z,
+  AbstractType& type = AbstractType::ZoneHandle(Z, cls.CanonicalType());
+  if (!type.IsNull()) {
+    // This requirement is embedded in 'CacnonicalType' function.

[hausner, 2015/08/19 17:45:03]

Cacnonical -> Canonical

[srdjan, 2015/08/19 17:55:25]

Done.

+    ASSERT((cls.NumTypeArguments() == 0) && !cls.IsSignatureClass());
+    return &type;
+  }
+
+  const TypeArguments& type_arguments = TypeArguments::Handle(Z,
       (cls.NumTypeParameters() > 0) ?
           cls.type_parameters() : TypeArguments::null());
-  AbstractType& type = AbstractType::ZoneHandle(
-      Z, Type::New(cls, type_arguments, cls.token_pos()));
+  type = Type::New(cls, type_arguments, cls.token_pos());
   if (cls.is_type_finalized()) {
     type ^= ClassFinalizer::FinalizeType(
         cls, type, ClassFinalizer::kCanonicalizeWellFormed);
     // Note that the receiver type may now be a malbounded type.
   }
   return &type;
 }
 
 
 bool Parser::IsInstantiatorRequired() const {
@@ skipping 2309 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart