
#line 178 "parser/qqmljs.g"
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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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 2.0 or (at your option) the GNU General
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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.
//

//
//  W A R N I N G
//  -------------
//
// This file is automatically generated from qqmljs.g.
// Changes should be made to that file, not here. Any change to this file will
// be lost!
//
// To regenerate this file, run:
//    qlalr --no-debug --no-lines --qt qqmljs.g
//

#ifndef QQMLJSPARSER_P_H
#define QQMLJSPARSER_P_H

#include <private/qqmljsglobal_p.h>
#include <private/qqmljsgrammar_p.h>
#include <private/qqmljsast_p.h>
#include <private/qqmljsengine_p.h>

#include <QtCore/qlist.h>
#include <QtCore/qstring.h>

QT_QML_BEGIN_NAMESPACE

namespace QQmlJS {

class Engine;

class QML_PARSER_EXPORT Parser: protected QQmlJSGrammar
{
public:
    union Value {
      int ival;
      double dval;
      AST::VariableScope scope;
      AST::ForEachType forEachType;
      AST::ArgumentList *ArgumentList;
      AST::CaseBlock *CaseBlock;
      AST::CaseClause *CaseClause;
      AST::CaseClauses *CaseClauses;
      AST::Catch *Catch;
      AST::DefaultClause *DefaultClause;
      AST::Elision *Elision;
      AST::ExpressionNode *Expression;
      AST::TemplateLiteral *Template;
      AST::Finally *Finally;
      AST::FormalParameterList *FormalParameterList;
      AST::FunctionDeclaration *FunctionDeclaration;
      AST::Node *Node;
      AST::PropertyName *PropertyName;
      AST::Statement *Statement;
      AST::StatementList *StatementList;
      AST::Block *Block;
      AST::VariableDeclarationList *VariableDeclarationList;
      AST::Pattern *Pattern;
      AST::PatternElement *PatternElement;
      AST::PatternElementList *PatternElementList;
      AST::PatternProperty *PatternProperty;
      AST::PatternPropertyList *PatternPropertyList;
      AST::ClassElementList *ClassElementList;
      AST::ImportClause *ImportClause;
      AST::FromClause *FromClause;
      AST::NameSpaceImport *NameSpaceImport;
      AST::ImportsList *ImportsList;
      AST::NamedImports *NamedImports;
      AST::ImportSpecifier *ImportSpecifier;
      AST::ExportSpecifier *ExportSpecifier;
      AST::ExportsList *ExportsList;
      AST::ExportClause *ExportClause;
      AST::ExportDeclaration *ExportDeclaration;

      AST::UiProgram *UiProgram;
      AST::UiHeaderItemList *UiHeaderItemList;
      AST::UiPragma *UiPragma;
      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::UiEnumMemberList *UiEnumMemberList;
    };

public:
    Parser(Engine *engine);
    ~Parser();

    // parse a UI program
    bool parse() { ++functionNestingLevel; bool r = parse(T_FEED_UI_PROGRAM); --functionNestingLevel; return r; }
    bool parseStatement() { return parse(T_FEED_JS_STATEMENT); }
    bool parseExpression() { return parse(T_FEED_JS_EXPRESSION); }
    bool parseUiObjectMember() { ++functionNestingLevel; bool r = parse(T_FEED_UI_OBJECT_MEMBER); --functionNestingLevel; return r; }
    bool parseProgram() { return parse(T_FEED_JS_SCRIPT); }
    bool parseScript() { return parse(T_FEED_JS_SCRIPT); }
    bool parseModule() { return parse(T_FEED_JS_MODULE); }

    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
    {
        for (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 QStringRef &stringRef(int index)
    { return string_stack [tos + index - 1]; }

    inline AST::SourceLocation &loc(int index)
    { return location_stack [tos + index - 1]; }

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

    void pushToken(int token);
    int lookaheadToken(Lexer *lexer);

    void syntaxError(const AST::SourceLocation &location, const char *message) {
        diagnostic_messages.append(DiagnosticMessage(DiagnosticMessage::Error, location, QLatin1String(message)));
     }
     void syntaxError(const AST::SourceLocation &location, const QString &message) {
         diagnostic_messages.append(DiagnosticMessage(DiagnosticMessage::Error, location, message));
      }

protected:
    Engine *driver;
    MemoryPool *pool;
    int tos = 0;
    int stack_size = 0;
    Value *sym_stack = nullptr;
    int *state_stack = nullptr;
    AST::SourceLocation *location_stack = nullptr;
    QVector<QStringRef> string_stack;

    AST::Node *program = nullptr;

    // error recovery and lookahead handling
    enum { TOKEN_BUFFER_SIZE = 5 };

    struct SavedToken {
       int token;
       double dval;
       AST::SourceLocation loc;
       QStringRef spell;
    };

    int yytoken = -1;
    double yylval = 0.;
    QStringRef yytokenspell;
    AST::SourceLocation yylloc;
    AST::SourceLocation yyprevlloc;

    SavedToken token_buffer[TOKEN_BUFFER_SIZE];
    SavedToken *first_token = nullptr;
    SavedToken *last_token = nullptr;

    int functionNestingLevel = 0;

    enum CoverExpressionType {
        CE_Invalid,
        CE_ParenthesizedExpression,
        CE_FormalParameterList
    };
    AST::SourceLocation coverExpressionErrorLocation;
    CoverExpressionType coverExpressionType = CE_Invalid;

    QList<DiagnosticMessage> diagnostic_messages;
};

} // end of namespace QQmlJS



#line 1513 "parser/qqmljs.g"

#define J_SCRIPT_REGEXPLITERAL_RULE1 128

#line 1525 "parser/qqmljs.g"

#define J_SCRIPT_REGEXPLITERAL_RULE2 129

#line 3024 "parser/qqmljs.g"

#define J_SCRIPT_EXPRESSIONSTATEMENTLOOKAHEAD_RULE 421

#line 3655 "parser/qqmljs.g"

#define J_SCRIPT_CONCISEBODYLOOKAHEAD_RULE 499

#line 4183 "parser/qqmljs.g"

#define J_SCRIPT_EXPORTDECLARATIONLOOKAHEAD_RULE 569

#line 4464 "parser/qqmljs.g"

QT_QML_END_NAMESPACE



#endif // QQMLJSPARSER_P_H
