Merge up to 8597 to experimental/gc from the bleeding edge.

src/factory.h

-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
@@ skipping 20 matching lines @@
 #include "handles.h"
 #include "heap.h"
 
 namespace v8 {
 namespace internal {
 
 // Interface for handle based allocation.
 
 class Factory {
  public:
-  // Allocate a new fixed array with undefined entries.
+  // Allocate a new uninitialized fixed array.
   Handle<FixedArray> NewFixedArray(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Allocate a new fixed array with non-existing entries (the hole).
   Handle<FixedArray> NewFixedArrayWithHoles(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
+  // Allocate a new uninitialized fixed double array.
+  Handle<FixedArray> NewFixedDoubleArray(
+      int size,
+      PretenureFlag pretenure = NOT_TENURED);
+
   Handle<NumberDictionary> NewNumberDictionary(int at_least_space_for);
 
   Handle<StringDictionary> NewStringDictionary(int at_least_space_for);
 
   Handle<DescriptorArray> NewDescriptorArray(int number_of_descriptors);
   Handle<DeoptimizationInputData> NewDeoptimizationInputData(
       int deopt_entry_count,
       PretenureFlag pretenure);
   Handle<DeoptimizationOutputData> NewDeoptimizationOutputData(
       int deopt_entry_count,
@@ skipping 43 matching lines @@
       Vector<const char> str,
       PretenureFlag pretenure = NOT_TENURED);
 
   Handle<String> NewStringFromTwoByte(
       Vector<const uc16> str,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Allocates and partially initializes an ASCII or TwoByte String. The
   // characters of the string are uninitialized. Currently used in regexp code
   // only, where they are pretenured.
-  Handle<String> NewRawAsciiString(
+  Handle<SeqAsciiString> NewRawAsciiString(
       int length,
       PretenureFlag pretenure = NOT_TENURED);
-  Handle<String> NewRawTwoByteString(
+  Handle<SeqTwoByteString> NewRawTwoByteString(
       int length,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Create a new cons string object which consists of a pair of strings.
   Handle<String> NewConsString(Handle<String> first,
                                Handle<String> second);
 
   // Create a new string object which holds a substring of a string.
   Handle<String> NewSubString(Handle<String> str,
                               int begin,
                               int end);
 
+  // Create a new string object which holds a proper substring of a string.
+  Handle<String> NewProperSubString(Handle<String> str,
+                                    int begin,
+                                    int end);
+
   // Creates a new external String object.  There are two String encodings
   // in the system: ASCII and two byte.  Unlike other String types, it does
   // not make sense to have a UTF-8 factory function for external strings,
   // because we cannot change the underlying buffer.
   Handle<String> NewExternalStringFromAscii(
       ExternalAsciiString::Resource* resource);
   Handle<String> NewExternalStringFromTwoByte(
       ExternalTwoByteString::Resource* resource);
 
   // Create a global (but otherwise uninitialized) context.
   Handle<Context> NewGlobalContext();
 
   // Create a function context.
   Handle<Context> NewFunctionContext(int length,
-                                     Handle<JSFunction> closure);
+                                     Handle<JSFunction> function);
+
+  // Create a catch context.
+  Handle<Context> NewCatchContext(Handle<JSFunction> function,
+                                  Handle<Context> previous,
+                                  Handle<String> name,
+                                  Handle<Object> thrown_object);
 
   // Create a 'with' context.
-  Handle<Context> NewWithContext(Handle<Context> previous,
-                                 Handle<JSObject> extension,
-                                 bool is_catch_context);
+  Handle<Context> NewWithContext(Handle<JSFunction> function,
+                                 Handle<Context> previous,
+                                 Handle<JSObject> extension);
 
   // Return the Symbol matching the passed in string.
   Handle<String> SymbolFromString(Handle<String> value);
 
   // Allocate a new struct.  The struct is pretenured (allocated directly in
   // the old generation).
   Handle<Struct> NewStruct(InstanceType type);
 
   Handle<AccessorInfo> NewAccessorInfo();
 
@@ skipping 272 matching lines @@
   // Update the map cache in the global context with (keys, map)
   Handle<MapCache> AddToMapCache(Handle<Context> context,
                                  Handle<FixedArray> keys,
                                  Handle<Map> map);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FACTORY_H_