/****************************************************************************
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** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of the QtQml module of the Qt Toolkit.
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#ifndef QV4IDENTIFIERTABLE_H
#define QV4IDENTIFIERTABLE_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qv4identifier_p.h"
#include "qv4string_p.h"
#include "qv4engine_p.h"
#include <limits.h>

QT_BEGIN_NAMESPACE

namespace QV4 {

struct IdentifierTable
{
    ExecutionEngine *engine;

    int alloc;
    int size;
    int numBits;
    Heap::String **entries;

    void addEntry(Heap::String *str);

public:

    IdentifierTable(ExecutionEngine *engine);
    ~IdentifierTable();

    Heap::String *insertString(const QString &s);

    Identifier *identifier(const Heap::String *str) {
        if (str->identifier)
            return str->identifier;
        return identifierImpl(str);
    }
    Identifier *identifier(const QV4::String *str) {
        return identifier(str->d());
    }

    Identifier *identifier(const QString &s);
    Identifier *identifier(const char *s, int len);

    Identifier *identifierImpl(const Heap::String *str);

    Heap::String *stringFromIdentifier(Identifier *i);

    void mark(MarkStack *markStack) {
        for (int i = 0; i < alloc; ++i) {
            Heap::String *entry = entries[i];
            if (!entry || entry->isMarked())
                continue;
            entry->setMarkBit();
            Q_ASSERT(entry->vtable()->markObjects);
            entry->vtable()->markObjects(entry, markStack);
        }
    }
};

}

QT_END_NAMESPACE

#endif
