Add type check tracing (--trace_type_checks). Inline type checks with class types that have only ...

runtime/vm/object.h

 // 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.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "vm/assert.h"
 #include "vm/dart.h"
 #include "vm/globals.h"
@@ skipping 720 matching lines @@
 
   // Check if this type represents the 'num' interface.
   bool IsNumberInterface() const;
 
   // Check if this type represents the 'String' interface.
   bool IsStringInterface() const;
 
   // Check if this type represents the 'Function' interface.
   bool IsFunctionInterface() const;
 
+  // Check if this type represents the 'List' interface.
+  bool IsListInterface() const;
+
   // Check if this type is an interface type.
   bool IsInterfaceType() const {
     if (!HasResolvedTypeClass()) {
       return false;
     }
     const Class& cls = Class::Handle(type_class());
     return !cls.IsNull() && cls.is_interface();
   }
 
   // Check the "more specific than" relationship.
@@ skipping 32 matching lines @@
 
   // The 'num' interface type.
   static RawType* NumberInterface();
 
   // The 'String' interface type.
   static RawType* StringInterface();
 
   // The 'Function' interface type.
   static RawType* FunctionInterface();
 
+  // The 'List' interface type.
+  static RawType* ListInterface();
+
   // The least specific valid raw type of the given class.
   // For example, type A<Dynamic> would be returned for class A<T>, and type
   // B<Dynamic, A<Dynamic>> would be returned for B<U, V extends A>.
   static RawType* NewRawType(const Class& type_class);
 
   // The finalized type of the given non-parameterized class.
   static RawType* NewNonParameterizedType(const Class& type_class);
 
   static RawType* NewParameterizedType(const Object& type_class,
                                        const TypeArguments& arguments);
@@ skipping 2191 matching lines @@
 }
 
 
 void Context::SetAt(intptr_t index, const Instance& value) const {
   StorePointer(InstanceAddr(index), value.raw());
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_