Periodic merge of bleeding_edge to experimental code generator branch....

src/heap.h

 // Copyright 2006-2008 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
@@ skipping 175 matching lines @@
   V(invalid_lhs_in_postfix_op_symbol, "invalid_lhs_in_postfix_op")       \
   V(invalid_lhs_in_prefix_op_symbol, "invalid_lhs_in_prefix_op")         \
   V(illegal_return_symbol, "illegal_return")                             \
   V(illegal_break_symbol, "illegal_break")                               \
   V(illegal_continue_symbol, "illegal_continue")                         \
   V(unknown_label_symbol, "unknown_label")                               \
   V(redeclaration_symbol, "redeclaration")                               \
   V(failure_symbol, "<failure>")                                         \
   V(space_symbol, " ")                                                   \
   V(exec_symbol, "exec")                                                 \
-  V(zero_symbol, "0")
+  V(zero_symbol, "0")                                                    \
+  V(global_eval_symbol, "GlobalEval")
 
 
 // Forward declaration of the GCTracer class.
 class GCTracer;
 
 
 // The all static Heap captures the interface to the global object heap.
 // All JavaScript contexts by this process share the same object heap.
 
 class Heap : public AllStatic {
@@ skipping 177 matching lines @@
 
   // Computes a single character string where the character has code.
   // A cache is used for ascii codes.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed. Please note this does not perform a garbage collection.
   static Object* LookupSingleCharacterStringFromCode(uint16_t code);
 
   // Allocate a byte array of the specified length
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
-  // Please not this does not perform a garbage collection.
+  // Please note this does not perform a garbage collection.
+  static Object* AllocateByteArray(int length, PretenureFlag pretenure);
+
+  // Allocate a non-tenured byte array of the specified length
+  // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
+  // failed.
+  // Please note this does not perform a garbage collection.
   static Object* AllocateByteArray(int length);
 
   // Allocates a fixed array initialized with undefined values
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   static Object* AllocateFixedArray(int length, PretenureFlag pretenure);
   // Allocate uninitialized, non-tenured fixed array with length elements.
   static Object* AllocateFixedArray(int length);
 
@@ skipping 137 matching lines @@
   // hardware and OS allow.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this function does not perform a garbage collection.
   static inline Object* AllocateRaw(int size_in_bytes,
                                     AllocationSpace space,
                                     AllocationSpace retry_space);
 
   // Makes a new native code object
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
-  // failed.
+  // failed. On success, the pointer to the Code object is stored in the
+  // self_reference. This allows generated code to reference its own Code
+  // object by containing this pointer.
   // Please note this function does not perform a garbage collection.
   static Object* CreateCode(const CodeDesc& desc,
                             ScopeInfo<>* sinfo,
-                            Code::Flags flags);
+                            Code::Flags flags,
+                            Code** self_reference = NULL);
 
   static Object* CopyCode(Code* code);
   // Finds the symbol for string in the symbol table.
   // If not found, a new symbol is added to the table and returned.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if allocation
   // failed.
   // Please note this function does not perform a garbage collection.
   static Object* LookupSymbol(Vector<const char> str);
   static Object* LookupAsciiSymbol(const char* str) {
     return LookupSymbol(CStrVector(str));
   }
   static Object* LookupSymbol(String* str);
   static bool LookupSymbolIfExists(String* str, String** symbol);
 
   // Compute the matching symbol map for a string if possible.
   // NULL is returned if string is in new space or not flattened.
   static Map* SymbolMapForString(String* str);
 
   // Converts the given boolean condition to JavaScript boolean value.
   static Object* ToBoolean(bool condition) {
     return condition ? true_value() : false_value();
   }
 
   // Code that should be run before and after each GC.  Includes some
   // reporting/verification activities when compiled with DEBUG set.
   static void GarbageCollectionPrologue();
   static void GarbageCollectionEpilogue();
 
+  // Code that should be executed after the garbage collection proper.
+  static void PostGarbageCollectionProcessing();
+
   // Performs garbage collection operation.
   // Returns whether required_space bytes are available after the collection.
   static bool CollectGarbage(int required_space, AllocationSpace space);
 
   // Performs a full garbage collection.
   static void CollectAllGarbage();
 
   // Utility to invoke the scavenger. This is needed in test code to
   // ensure correct callback for weak global handles.
   static void PerformScavenge();
@@ skipping 675 matching lines @@
   int marked_count_;
 
   // The count from the end of the previous full GC.  Will be zero if there
   // was no previous full GC.
   int previous_marked_count_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_