Optimize type checks of list and map literals.

runtime/vm/ast_printer.cc

 // Copyright (c) 2011, 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/ast_printer.h"
 
 #include "vm/handles.h"
 #include "vm/object.h"
 #include "vm/os.h"
 #include "vm/parser.h"
@@ skipping 110 matching lines @@
   OS::Print("'%s'", literal.ToCString());
 }
 
 
 void AstPrinter::VisitTypeNode(TypeNode* node) {
   const Type& type = node->type();
   OS::Print("'%s'", String::Handle(type.Name()).ToCString());
 }
 
 
+void AstPrinter::VisitAssignableNode(AssignableNode* node) {
+  OS::Print("(assignable ");
+  node->expr()->Visit(this);
+  const Type& type = node->type();
+  const String& dst_name = node->dst_name();
+  OS::Print(" to type '%s' of '%s')",
+            String::Handle(type.Name()).ToCString(),
+            dst_name.ToCString());
+}
+
+
 void AstPrinter::VisitPrimaryNode(PrimaryNode* node) {
   OS::Print("***** PRIMARY NODE IN AST ***** (%s '%s')",
       node->Name(), node->primary().ToCString());
 }
 
 
 void AstPrinter::VisitComparisonNode(ComparisonNode* node) {
   VisitGenericAstNode(node);
 }
 
@@ skipping 327 matching lines @@
   ASSERT(node_sequence != NULL);
   AstPrinter ast_printer;
   const char* function_name =
       parsed_function.function().ToFullyQualifiedCString();
   OS::Print("Ast for function '%s' {\n", function_name);
   node_sequence->Visit(&ast_printer);
   OS::Print("}\n");
 }
 
 }  // namespace dart