/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
** Contact: https://www.qt.io/licensing/
**
** This file is part of PySide2.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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****************************************************************************/


#ifndef BINDER_H
#define BINDER_H

#include "default_visitor.h"
#include "codemodel.h"
#include "type_compiler.h"
#include "name_compiler.h"
#include "declarator_compiler.h"

class TokenStream;
class LocationManager;
class Control;
struct NameSymbol;

class Binder: protected DefaultVisitor
{
public:
    Binder(CodeModel *__model, LocationManager &__location, Control *__control = 0);
    virtual ~Binder();

    inline TokenStream *tokenStream() const
    {
        return _M_token_stream;
    }

    inline CodeModel *model() const
    {
        return _M_model;
    }

    ScopeModelItem currentScope();

    FileModelItem run(AST *node);

// utils
    TypeInfo qualifyType(const TypeInfo &type, const QStringList &context) const;

protected:
    virtual void visitAccessSpecifier(AccessSpecifierAST *);
    virtual void visitClassSpecifier(ClassSpecifierAST *);
    virtual void visitEnumSpecifier(EnumSpecifierAST *);
    virtual void visitEnumerator(EnumeratorAST *);
    virtual void visitFunctionDefinition(FunctionDefinitionAST *);
    virtual void visitLinkageSpecification(LinkageSpecificationAST *);
    virtual void visitNamespace(NamespaceAST *);
    virtual void visitSimpleDeclaration(SimpleDeclarationAST *);
    virtual void visitTemplateDeclaration(TemplateDeclarationAST *);
    virtual void visitTypedef(TypedefAST *);
    virtual void visitUsing(UsingAST *);
    virtual void visitUsingDirective(UsingDirectiveAST *);
    virtual void visitQProperty(QPropertyAST *);
    virtual void visitForwardDeclarationSpecifier(ForwardDeclarationSpecifierAST *);
    virtual void visitQEnums(QEnumsAST *);

private:

    int decode_token(std::size_t index) const;
    const NameSymbol *decode_symbol(std::size_t index) const;
    CodeModel::AccessPolicy decode_access_policy(std::size_t index) const;
    CodeModel::ClassType decode_class_type(std::size_t index) const;

    CodeModel::FunctionType changeCurrentFunctionType(CodeModel::FunctionType functionType);
    CodeModel::AccessPolicy changeCurrentAccess(CodeModel::AccessPolicy accessPolicy);
    NamespaceModelItem changeCurrentNamespace(NamespaceModelItem item);
    ClassModelItem changeCurrentClass(ClassModelItem item);
    FunctionModelItem changeCurrentFunction(FunctionModelItem item);
    TemplateParameterList changeTemplateParameters(TemplateParameterList templateParameters);

    void declare_symbol(SimpleDeclarationAST *node, InitDeclaratorAST *init_declarator);

    void applyStorageSpecifiers(const ListNode<std::size_t> *storage_specifiers, MemberModelItem item);
    void applyFunctionSpecifiers(const ListNode<std::size_t> *it, FunctionModelItem item);

    void updateItemPosition(CodeModelItem item, AST *node);

private:
    CodeModel *_M_model;
    LocationManager &_M_location;
    TokenStream *_M_token_stream;
    Control *_M_control;

    CodeModel::FunctionType _M_current_function_type;
    CodeModel::AccessPolicy _M_current_access;
    FileModelItem _M_current_file;
    NamespaceModelItem _M_current_namespace;
    ClassModelItem _M_current_class;
    FunctionModelItem _M_current_function;
    EnumModelItem _M_current_enum;
    QStringList _M_context;
    TemplateParameterList _M_current_template_parameters; // ### check me
    QHash<QString, QString> _M_qualified_types;
    QHash<QString, int> _M_anonymous_enums;
    void dummy() {
        _M_control=0;
    }

protected:
    TypeCompiler type_cc;
    NameCompiler name_cc;
    DeclaratorCompiler decl_cc;
};

#endif // BINDER_H