Import the v8-i18n extension into v8

src/extensions/i18n/collator.h

Index: src/extensions/i18n/collator.h
diff --git a/src/hydrogen-infer-representation.h b/src/extensions/i18n/collator.h
similarity index 59%
copy from src/hydrogen-infer-representation.h
copy to src/extensions/i18n/collator.h
index 7c605696c4b956152bdd9dfc74c83e80569e3714..a3991b9ed244afad996cf5d547c17e077010ac60 100644
--- a/src/hydrogen-infer-representation.h
+++ b/src/extensions/i18n/collator.h
@@ -24,34 +24,45 @@
 // 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.
+// limitations under the License.
 
-#ifndef V8_HYDROGEN_INFER_REPRESENTATION_H_
-#define V8_HYDROGEN_INFER_REPRESENTATION_H_
+#ifndef V8_EXTENSIONS_I18N_COLLATOR_H_
+#define V8_EXTENSIONS_I18N_COLLATOR_H_
 
-#include "hydrogen.h"
+#include "unicode/uversion.h"
+#include "v8.h"
 
-namespace v8 {
-namespace internal {
+namespace U_ICU_NAMESPACE {
+class Collator;
+class UnicodeString;
+}
 
+namespace v8_i18n {
 
-class HInferRepresentationPhase : public HPhase {
+class Collator {
  public:
-  explicit HInferRepresentationPhase(HGraph* graph)
-      : HPhase("H_Infer representations", graph),
-        worklist_(8, zone()),
-        in_worklist_(graph->GetMaximumValueID(), zone()) { }
+  static void JSCreateCollator(const v8::FunctionCallbackInfo<v8::Value>& args);
 
-  void Run();
-  void AddToWorklist(HValue* current);
+  // Helper methods for various bindings.
 
- private:
-  ZoneList<HValue*> worklist_;
-  BitVector in_worklist_;
+  // Unpacks collator object from corresponding JavaScript object.
+  static icu::Collator* UnpackCollator(v8::Handle<v8::Object> obj);
 
-  DISALLOW_COPY_AND_ASSIGN(HInferRepresentationPhase);
-};
+  // Release memory we allocated for the Collator once the JS object that
+  // holds the pointer gets garbage collected.
+  static void DeleteCollator(v8::Isolate* isolate,
+                             v8::Persistent<v8::Object>* object,
+                             void* param);
+
+  // Compare two strings and returns -1, 0 and 1 depending on
+  // whether string1 is smaller than, equal to or larger than string2.
+  static void JSInternalCompare(
+      const v8::FunctionCallbackInfo<v8::Value>& args);
 
+ private:
+  Collator() {}
+};
 
-} }  // namespace v8::internal
+}  // namespace v8_i18n
 
-#endif  // V8_HYDROGEN_INFER_REPRESENTATION_H_
+#endif  // V8_EXTENSIONS_I18N_COLLATOR_H_