Expose the GC under a name that is less collision prone than window.gc.

src/extensions/gc-extension.cc

 // Copyright 2010 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 12 matching lines @@
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "gc-extension.h"
 
 namespace v8 {
 namespace internal {
 
 const char* const GCExtension::kSource = "native function gc();";

[Michael Starzinger, 2013/04/22 15:58:42]

This constant it no longer needed, let's drop it.

[marja, 2013/04/23 11:06:02]

Done.

 
 
 v8::Handle<v8::FunctionTemplate> GCExtension::GetNativeFunction(
     v8::Handle<v8::String> str) {
   return v8::FunctionTemplate::New(GCExtension::GC);
 }
 
 
 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) {
   if (args[0]->BooleanValue()) {
     HEAP->CollectGarbage(NEW_SPACE, "gc extension");
   } else {
     HEAP->CollectAllGarbage(Heap::kNoGCFlags, "gc extension");
   }
   return v8::Undefined();
 }
 
 
 void GCExtension::Register() {
-  static GCExtension gc_extension;
+  static char buffer[50];
+  if (FLAG_expose_gc_as != NULL && strlen(FLAG_expose_gc_as) != 0) {
+    snprintf(
+        buffer, sizeof(buffer), "native function %s();", FLAG_expose_gc_as);
+  } else {
+    snprintf(buffer, sizeof(buffer), "native function gc();");
+  }
+
+  static GCExtension gc_extension(buffer);
   static v8::DeclareExtension declaration(&gc_extension);
 }
 
 } }  // namespace v8::internal