my %willbe_types = (
                    PassRefPtrWillBeRawPtr => "RawPtr",
                    RefCountedWillBeGarbageCollected => "GarbageCollected",
                    RefCountedWillBeGarbageCollectedFinalized => "GarbageCollectedFinalized",
                    RefCountedWillBeRefCountedGarbageCollected => "RefCountedGarbageCollected",
                    RefCountedGarbageCollectedWillBeGarbageCollectedFinalized => "GarbageCollectedFinalized",
                    RefCountedWillBeNoBase => "DummyBase",
                    RefCountedGarbageCollectedWillBeNoBase => "DummyBase",
                    ThreadSafeRefCountedWillBeGarbageCollected => "GarbageCollected",
                    ThreadSafeRefCountedWillBeGarbageCollectedFinalized => "GarbageCollectedFinalized",
                    PersistentWillBeMember => "Member",
                    CrossThreadPersistentWillBeMember => "Member",
                    RefPtrWillBePersistent => "Persistent",
                    RefPtrWillBeRawPtr => "RawPtr",
                    RefPtrWillBeMember => "Member",
                    RefPtrWillBeWeakMember => "WeakMember",
                    RefPtrWillBeWeakPersistent => "WeakPersistent",
                    RefPtrWillBeCrossThreadPersistent => "CrossThreadPersistent",
                    RawPtrWillBeMember => "Member",
                    RawPtrWillBePersistent => "Persistent",
                    RawPtrWillBeWeakMember => "WeakMember",
                    RawPtrWillBeWeakPersistent => "WeakPersistent",
                    RawPtrWillBeUntracedMember => "UntracedMember",
                    OwnPtrWillBeCrossThreadPersistent => "CrossThreadPersistent",
                    OwnPtrWillBeMember => "Member",
                    OwnPtrWillBePersistent => "Persistent",
                    OwnPtrWillBeRawPtr => "RawPtr",
                    PassOwnPtrWillBeRawPtr => "RawPtr",
                    WeakPtrWillBeCrossThreadWeakPersistent => "CrossThreadWeakPersistent",
                    WeakPtrWillBeMember => "Member",
                    WeakPtrWillBeRawPtr => "RawPtr",
                    WeakPtrWillBeWeakMember => "WeakMember",
                    WeakPtrWillBeWeakPersistent => "WeakPersistent",
                    NoBaseWillBeGarbageCollected => "GarbageCollected",
                    NoBaseWillBeGarbageCollectedFinalized => "GarbageCollectedFinalized",
                    NoBaseWillBeRefCountedGarbageCollected => "RefCountedGarbageCollected",
                    WillBeHeapHashMap => "HeapHashMap",
                    WillBePersistentHeapHashMap => "PersistentHeapHashMap",
                    WillBeHeapHashSet => "HeapHashSet",
                    WillBePersistentHeapHashSet => "PersistentHeapHashSet",
                    WillBeHeapLinkedHashSet => "HeapLinkedHashSet",
                    WillBePersistentHeapLinkedHashSet => "PersistentHeapLinkedHashSet",
                    WillBeHeapListHashSet => "HeapListHashSet",
                    WillBePersistentHeapListHashSet => "PersistentHeapListHashSet",
                    WillBeHeapVector => "HeapVector",
                    WillBePersistentHeapVector => "PersistentHeapVector",
                    WillBeHeapDeque => "HeapDeque",
                    WillBePersistentHeapDeque => "PersistentHeapDeque",
                    WillBeHeapHashCountedSet => "HeapHashCountedSet",
                    WillBePersistentHeapHashCountedSet => "PersistentHeapHashCountedSet",
                    WillBeGarbageCollectedMixin => "GarbageCollectedMixin",
                    WillBeHeapSupplement => "HeapSupplement",
                    WillBeHeapSupplementable => "HeapSupplementable",
                    WillBeHeapTerminatedArray => "HeapTerminatedArray",
                    WillBeHeapTerminatedArrayBuilder => "HeapTerminatedArrayBuilder",
                    WillBeHeapLinkedStack => "HeapLinkedStack",
                    PersistentHeapHashMapWillBeHeapHashMap => "HeapHashMap",
                    PersistentHeapHashSetWillBeHeapHashSet => "HeapHashSet",
                    PersistentHeapDequeWillBeHeapDeque => "HeapDeque",
                    PersistentHeapVectorWillBeHeapVector => "HeapVector",
                    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN => "USING_GARBAGE_COLLECTED_MIXIN",
                   );

my @remove_lines = (
                    "USING_FAST_MALLOC_WILL_BE_REMOVED",
                    "USING_FAST_MALLOC_WITH_TYPE_NAME_WILL_BE_REMOVED",
                    "DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED",
                    "DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED",
                    "DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED",
                    "EAGERLY_FINALIZE_WILL_BE_REMOVED",
                   );

for my $key (keys %willbe_types) {
    my $command = "grep -rl '" . $key . "' * | grep -v '.pl' | grep -v 'platform/heap/' | sed -i 's/" . $key . "/" . $willbe_types{$key} . "/g'";
    system $command;
}

for my $item (@remove_lines) {
    my $command = "grep -rl '" . $item . "' * | grep -v '.pl' | grep -v 'platform/heap/'";
    my @files = `$command`;
    for my $file (@files) {
        my $str = "";
        my $skipped = 0;
        chomp $file;
        open FH, "<", $file or die;
        while (my $line = <FH>) {
            if ($skipped && $line =~ /^[\s\t]*\n$/) {
                next;
            }
            $skipped = 0;
            if ($line =~ /${item}/) {
                if ($line =~ /^[\s\t]*${item}(\([^()]*\))?;?\s*\n$/) {
                    $skipped = 1;
                    next;
                } else {
                    $line =~ s/[\s\t]*${item}(\([^()]*\))?;?//;
                    # print $line;
                }
            }
            $str .= $line;
        }
        close FH;
        open FH, ">", $file or die;
        print FH $str;
        close FH;
    }
}