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#ifndef QMLJSLOOKUPCONTEXT_H
#define QMLJSLOOKUPCONTEXT_H

#include "qmljsdocument.h"
#include "qmljsinterpreter.h"
#include "parser/qmljsastfwd_p.h"

#include <QtCore/QSharedPointer>
#include <QtCore/QScopedPointer>

namespace QmlJS {

class LookupContextData;

namespace Interpreter {
class Value;
class Context;
}

class QMLJS_EXPORT LookupContext
{
    Q_DISABLE_COPY(LookupContext)

    LookupContext(const Document::Ptr doc, const Snapshot &snapshot, const QList<AST::Node *> &path);
    LookupContext(const Document::Ptr doc,
                  const Interpreter::Context &linkedContextWithoutScope,
                  const QList<AST::Node *> &path);

public:
    ~LookupContext();

    typedef QSharedPointer<LookupContext> Ptr;

    // consider using SemanticInfo::lookupContext instead, it's faster
    static Ptr create(const Document::Ptr doc, const Snapshot &snapshot,
                      const QList<AST::Node *> &path);
    static Ptr create(const Document::Ptr doc,
                      const Interpreter::Context &linkedContextWithoutScope,
                      const QList<AST::Node *> &path);

    const Interpreter::Value *evaluate(AST::Node *node) const;

    Document::Ptr document() const;
    Snapshot snapshot() const;
    Interpreter::Engine *engine() const;
    const Interpreter::Context *context() const;

private:
    QScopedPointer<LookupContextData> d;
};

} // namespace QmlJS

#endif // QMLJSLOOKUPCONTEXT_H