#include "config.h"
#include "IdentifierRep.h"
#include "JSDOMBinding.h"
#include "PlatformString.h"
#include <runtime/UString.h>
#include <wtf/HashMap.h>
#include <wtf/StdLibExtras.h>
using namespace JSC;
namespace WebCore {
typedef HashSet<IdentifierRep*> IdentifierSet;
static IdentifierSet& identifierSet()
{
DEFINE_STATIC_LOCAL(IdentifierSet, identifierSet, ());
return identifierSet;
}
typedef HashMap<int, IdentifierRep*> IntIdentifierMap;
static IntIdentifierMap& intIdentifierMap()
{
DEFINE_STATIC_LOCAL(IntIdentifierMap, intIdentifierMap, ());
return intIdentifierMap;
}
IdentifierRep* IdentifierRep::get(int intID)
{
if (intID == 0 || intID == -1) {
static IdentifierRep* negativeOneAndZeroIdentifiers[2];
IdentifierRep* identifier = negativeOneAndZeroIdentifiers[intID + 1];
if (!identifier) {
identifier = new IdentifierRep(intID);
negativeOneAndZeroIdentifiers[intID + 1] = identifier;
}
return identifier;
}
pair<IntIdentifierMap::iterator, bool> result = intIdentifierMap().add(intID, 0);
if (result.second) {
ASSERT(!result.first->second);
result.first->second = new IdentifierRep(intID);
identifierSet().add(result.first->second);
}
return result.first->second;
}
typedef HashMap<RefPtr<JSC::UString::Rep>, IdentifierRep*> StringIdentifierMap;
static StringIdentifierMap& stringIdentifierMap()
{
DEFINE_STATIC_LOCAL(StringIdentifierMap, stringIdentifierMap, ());
return stringIdentifierMap;
}
IdentifierRep* IdentifierRep::get(const char* name)
{
ASSERT(name);
if (!name)
return 0;
UString string = stringToUString(String::fromUTF8WithLatin1Fallback(name, strlen(name)));
pair<StringIdentifierMap::iterator, bool> result = stringIdentifierMap().add(string.rep(), 0);
if (result.second) {
ASSERT(!result.first->second);
result.first->second = new IdentifierRep(name);
identifierSet().add(result.first->second);
}
return result.first->second;
}
bool IdentifierRep::isValid(IdentifierRep* identifier)
{
return identifierSet().contains(identifier);
}
}