Change all V8 internal private symbols to be private own symbols.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/598603002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24168 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap/heap.cc

@@ -2861,17 +2861,17 @@ void Heap::CreateInitialObjects() {
   // Number of queued microtasks stored in Isolate::pending_microtask_count().
   set_microtask_queue(empty_fixed_array());
 
-  set_detailed_stack_trace_symbol(*factory->NewPrivateSymbol());
-  set_elements_transition_symbol(*factory->NewPrivateSymbol());
-  set_frozen_symbol(*factory->NewPrivateSymbol());
-  set_megamorphic_symbol(*factory->NewPrivateSymbol());
-  set_premonomorphic_symbol(*factory->NewPrivateSymbol());
-  set_generic_symbol(*factory->NewPrivateSymbol());
-  set_nonexistent_symbol(*factory->NewPrivateSymbol());
-  set_normal_ic_symbol(*factory->NewPrivateSymbol());
-  set_observed_symbol(*factory->NewPrivateSymbol());
-  set_stack_trace_symbol(*factory->NewPrivateSymbol());
-  set_uninitialized_symbol(*factory->NewPrivateSymbol());
+  set_detailed_stack_trace_symbol(*factory->NewPrivateOwnSymbol());
+  set_elements_transition_symbol(*factory->NewPrivateOwnSymbol());
+  set_frozen_symbol(*factory->NewPrivateOwnSymbol());
+  set_megamorphic_symbol(*factory->NewPrivateOwnSymbol());
+  set_premonomorphic_symbol(*factory->NewPrivateOwnSymbol());
+  set_generic_symbol(*factory->NewPrivateOwnSymbol());
+  set_nonexistent_symbol(*factory->NewPrivateOwnSymbol());
+  set_normal_ic_symbol(*factory->NewPrivateOwnSymbol());
+  set_observed_symbol(*factory->NewPrivateOwnSymbol());
+  set_stack_trace_symbol(*factory->NewPrivateOwnSymbol());
+  set_uninitialized_symbol(*factory->NewPrivateOwnSymbol());
   set_home_object_symbol(*factory->NewPrivateOwnSymbol());
 
   Handle<SeededNumberDictionary> slow_element_dictionary =

src/macros.py

@@ -172,7 +172,7 @@ macro HAS_OWN_PROPERTY(obj, index) = (%_CallFunction(obj, index, ObjectHasOwnPro
 # GET_PRIVATE should only be used if the property is known to exists on obj
 # itself (it should really use %GetOwnProperty, but that would be way slower).
 macro GLOBAL_PRIVATE(name) = (%CreateGlobalPrivateOwnSymbol(name));
-macro NEW_PRIVATE(name) = (%CreatePrivateSymbol(name));
+macro NEW_PRIVATE_OWN(name) = (%CreatePrivateOwnSymbol(name));
 macro IS_PRIVATE(sym) = (%SymbolIsPrivate(sym));
 macro HAS_PRIVATE(obj, sym) = (%HasOwnProperty(obj, sym));
 macro HAS_DEFINED_PRIVATE(obj, sym) = (!IS_UNDEFINED(obj[sym]));

src/messages.js

@@ -757,10 +757,10 @@ function GetStackTraceLine(recv, fun, pos, isGlobal) {
 // ----------------------------------------------------------------------------
 // Error implementation
 
-var CallSiteReceiverKey = NEW_PRIVATE("CallSite#receiver");
-var CallSiteFunctionKey = NEW_PRIVATE("CallSite#function");
-var CallSitePositionKey = NEW_PRIVATE("CallSite#position");
-var CallSiteStrictModeKey = NEW_PRIVATE("CallSite#strict_mode");
+var CallSiteReceiverKey = NEW_PRIVATE_OWN("CallSite#receiver");
+var CallSiteFunctionKey = NEW_PRIVATE_OWN("CallSite#function");
+var CallSitePositionKey = NEW_PRIVATE_OWN("CallSite#position");
+var CallSiteStrictModeKey = NEW_PRIVATE_OWN("CallSite#strict_mode");
 
 function CallSite(receiver, fun, pos, strict_mode) {
   SET_PRIVATE(this, CallSiteReceiverKey, receiver);
@@ -1115,16 +1115,21 @@ function GetTypeName(receiver, requireConstructor) {
 
 
 var stack_trace_symbol;  // Set during bootstrapping.
-var formatted_stack_trace_symbol = NEW_PRIVATE("formatted stack trace");
+var formatted_stack_trace_symbol = NEW_PRIVATE_OWN("formatted stack trace");
 
 
 // Format the stack trace if not yet done, and return it.
 // Cache the formatted stack trace on the holder.
 var StackTraceGetter = function() {
-  var formatted_stack_trace = GET_PRIVATE(this, formatted_stack_trace_symbol);
+  var formatted_stack_trace = UNDEFINED;
+  var holder = this;
+  while (holder && IS_UNDEFINED(formatted_stack_trace)) {
+    formatted_stack_trace = GET_PRIVATE(holder, formatted_stack_trace_symbol);
+    holder = %GetPrototype(holder);
+  }
   if (IS_UNDEFINED(formatted_stack_trace)) {
-    var holder = this;
-    while (!HAS_PRIVATE(holder, stack_trace_symbol)) {
+    holder = this;
+    while (!HAS_DEFINED_PRIVATE(holder, stack_trace_symbol)) {
       holder = %GetPrototype(holder);
       if (!holder) return UNDEFINED;
     }