/****************************************************************************

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the QtDeclarative module of the Qt Toolkit.

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** this package.

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** Foundation and appearing in the file LICENSE.LGPL included in the

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** ensure the GNU Lesser General Public License version 2.1 requirements

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****************************************************************************/

//

//  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.

//

//

// This file is automatically generated from qmljs.g.

// Changes will be lost.

//

#ifndef QDECLARATIVEJSPARSER_P_H

#define QDECLARATIVEJSPARSER_P_H

#include "private/qdeclarativejsglobal_p.h"

#include "private/qdeclarativejsgrammar_p.h"

#include "private/qdeclarativejsast_p.h"

#include "private/qdeclarativejsengine_p.h"

#include <QtCore/QList>

#include <QtCore/QString>

QT_QML_BEGIN_NAMESPACE

namespace QDeclarativeJS {

class Engine;

class NameId;

class QML_PARSER_EXPORT Parser: protected QDeclarativeJSGrammar

{

public:

    union Value {

      int ival;

      double dval;

      NameId *sval;

      AST::ArgumentList *ArgumentList;

      AST::CaseBlock *CaseBlock;

      AST::CaseClause *CaseClause;

      AST::CaseClauses *CaseClauses;

      AST::Catch *Catch;

      AST::DefaultClause *DefaultClause;

      AST::ElementList *ElementList;

      AST::Elision *Elision;

      AST::ExpressionNode *Expression;

      AST::Finally *Finally;

      AST::FormalParameterList *FormalParameterList;

      AST::FunctionBody *FunctionBody;

      AST::FunctionDeclaration *FunctionDeclaration;

      AST::Node *Node;

      AST::PropertyName *PropertyName;

      AST::PropertyNameAndValueList *PropertyNameAndValueList;

      AST::SourceElement *SourceElement;

      AST::SourceElements *SourceElements;

      AST::Statement *Statement;

      AST::StatementList *StatementList;

      AST::Block *Block;

      AST::VariableDeclaration *VariableDeclaration;

      AST::VariableDeclarationList *VariableDeclarationList;

      AST::UiProgram *UiProgram;

      AST::UiImportList *UiImportList;

      AST::UiImport *UiImport;

      AST::UiParameterList *UiParameterList;

      AST::UiPublicMember *UiPublicMember;

      AST::UiObjectDefinition *UiObjectDefinition;

      AST::UiObjectInitializer *UiObjectInitializer;

      AST::UiObjectBinding *UiObjectBinding;

      AST::UiScriptBinding *UiScriptBinding;

      AST::UiArrayBinding *UiArrayBinding;

      AST::UiObjectMember *UiObjectMember;

      AST::UiObjectMemberList *UiObjectMemberList;

      AST::UiArrayMemberList *UiArrayMemberList;

      AST::UiQualifiedId *UiQualifiedId;

      AST::UiSignature *UiSignature;

      AST::UiFormalList *UiFormalList;

      AST::UiFormal *UiFormal;

    };

public:

    Parser(Engine *engine);

    ~Parser();

    // parse a UI program

    bool parse() { return parse(T_FEED_UI_PROGRAM); }

    bool parseStatement() { return parse(T_FEED_JS_STATEMENT); }

    bool parseExpression() { return parse(T_FEED_JS_EXPRESSION); }

    bool parseSourceElement() { return parse(T_FEED_JS_SOURCE_ELEMENT); }

    bool parseUiObjectMember() { return parse(T_FEED_UI_OBJECT_MEMBER); }

    bool parseProgram() { return parse(T_FEED_JS_PROGRAM); }

    AST::UiProgram *ast() const

    { return AST::cast<AST::UiProgram *>(program); }

    AST::Statement *statement() const

    {

        if (! program)

            return 0;

        return program->statementCast();

    }

    AST::ExpressionNode *expression() const

    {

        if (! program)

            return 0;

        return program->expressionCast();

    }

    AST::UiObjectMember *uiObjectMember() const

    {

        if (! program)

            return 0;

        return program->uiObjectMemberCast();

    }

    AST::Node *rootNode() const

    { return program; }

    QList<DiagnosticMessage> diagnosticMessages() const

    { return diagnostic_messages; }

    inline DiagnosticMessage diagnosticMessage() const

    {

        foreach (const DiagnosticMessage &d, diagnostic_messages) {

            if (! d.kind == DiagnosticMessage::Warning)

                return d;

        }

        return DiagnosticMessage();

    }

    inline QString errorMessage() const

    { return diagnosticMessage().message; }

    inline int errorLineNumber() const

    { return diagnosticMessage().loc.startLine; }

    inline int errorColumnNumber() const

    { return diagnosticMessage().loc.startColumn; }

protected:

    bool parse(int startToken);

    void reallocateStack();

    inline Value &sym(int index)

    { return sym_stack [tos + index - 1]; }

    inline AST::SourceLocation &loc(int index)

    { return location_stack [tos + index - 1]; }

    AST::UiQualifiedId *reparseAsQualifiedId(AST::ExpressionNode *expr);

protected:

    Engine *driver;

    int tos;

    int stack_size;

    Value *sym_stack;

    int *state_stack;

    AST::SourceLocation *location_stack;

    AST::Node *program;

    // error recovery

    enum { TOKEN_BUFFER_SIZE = 3 };

    struct SavedToken {

       int token;

       double dval;

       AST::SourceLocation loc;

    };

    double yylval;

    AST::SourceLocation yylloc;

    AST::SourceLocation yyprevlloc;

    SavedToken token_buffer[TOKEN_BUFFER_SIZE];

    SavedToken *first_token;

    SavedToken *last_token;

    QList<DiagnosticMessage> diagnostic_messages;

};

} // end of namespace QDeclarativeJS

#define J_SCRIPT_REGEXPLITERAL_RULE1 78

#define J_SCRIPT_REGEXPLITERAL_RULE2 79

QT_QML_END_NAMESPACE

#endif // QDECLARATIVEJSPARSER_P_H