v8::internal::AllocationSiteCreationContext Class Reference

#include <allocation-site-scopes.h>

Inheritance diagram for v8::internal::AllocationSiteCreationContext:

Collaboration diagram for v8::internal::AllocationSiteCreationContext:

Public Member Functions
	AllocationSiteCreationContext (Isolate *isolate)
Handle< AllocationSite >	EnterNewScope ()
void	ExitScope (Handle< AllocationSite > site, Handle< JSObject > object)
Public Member Functions inherited from v8::internal::AllocationSiteContext
	AllocationSiteContext (Isolate *isolate)
Handle< AllocationSite >	top ()
Handle< AllocationSite >	current ()
bool	ShouldCreateMemento (Handle< JSObject > object)
Isolate *	isolate ()

Additional Inherited Members
Protected Member Functions inherited from v8::internal::AllocationSiteContext
void	update_current_site (AllocationSite *site)
void	InitializeTraversal (Handle< AllocationSite > site)

Detailed Description

Definition at line 51 of file allocation-site-scopes.h.

Constructor & Destructor Documentation

AllocationSiteCreationContext()

v8::internal::AllocationSiteCreationContext::AllocationSiteCreationContext ( Isolate *  isolate )

inlineexplicit

Definition at line 53 of file allocation-site-scopes.h.

      : AllocationSiteContext(isolate) { }

Member Function Documentation

EnterNewScope()

Handle< AllocationSite > v8::internal::AllocationSiteCreationContext::EnterNewScope

(

)

Definition at line 11 of file allocation-site-scopes.cc.

                                                                    {
  Handle<AllocationSite> scope_site;
  if (top().is_null()) {
    // We are creating the top level AllocationSite as opposed to a nested
    // AllocationSite.
    InitializeTraversal(isolate()->factory()->NewAllocationSite());
    scope_site = Handle<AllocationSite>(*top(), isolate());
    if (FLAG_trace_creation_allocation_sites) {
      PrintF("*** Creating top level AllocationSite %p\n",
             static_cast<void*>(*scope_site));
    }
  } else {
    DCHECK(!current().is_null());
    scope_site = isolate()->factory()->NewAllocationSite();
    if (FLAG_trace_creation_allocation_sites) {
      PrintF("Creating nested site (top, current, new) (%p, %p, %p)\n",
             static_cast<void*>(*top()),
             static_cast<void*>(*current()),
             static_cast<void*>(*scope_site));
    }
    current()->set_nested_site(*scope_site);
    update_current_site(*scope_site);
  }
  DCHECK(!scope_site.is_null());
  return scope_site;
}

References v8::internal::AllocationSiteContext::current(), DCHECK, v8::internal::Isolate::factory(), v8::internal::AllocationSiteContext::InitializeTraversal(), v8::internal::Handle< T >::is_null(), v8::internal::AllocationSiteContext::isolate(), v8::internal::PrintF(), v8::internal::AllocationSiteContext::top(), and v8::internal::AllocationSiteContext::update_current_site().

Referenced by v8::internal::GetLiteralAllocationSite(), and v8::internal::RUNTIME_FUNCTION().

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ExitScope()

void v8::internal::AllocationSiteCreationContext::ExitScope	(	Handle< AllocationSite >	site,
		Handle< JSObject >	object
	)

Definition at line 39 of file allocation-site-scopes.cc.

                             {
  if (!object.is_null()) {
    bool top_level = !scope_site.is_null() &&
        top().is_identical_to(scope_site);
 
    scope_site->set_transition_info(*object);
    if (FLAG_trace_creation_allocation_sites) {
      if (top_level) {
        PrintF("*** Setting AllocationSite %p transition_info %p\n",
               static_cast<void*>(*scope_site),
               static_cast<void*>(*object));
      } else {
        PrintF("Setting AllocationSite (%p, %p) transition_info %p\n",
               static_cast<void*>(*top()),
               static_cast<void*>(*scope_site),
               static_cast<void*>(*object));
      }
    }
  }
}

References v8::internal::Handle< T >::is_null(), v8::internal::PrintF(), and v8::internal::AllocationSiteContext::top().

Referenced by v8::internal::GetLiteralAllocationSite(), and v8::internal::RUNTIME_FUNCTION().

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The documentation for this class was generated from the following files:

• /mnt/V8SourceCode/src/allocation-site-scopes.h
• /mnt/V8SourceCode/src/allocation-site-scopes.cc