1 /****************************************************************************

     2 **

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

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

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

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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

    20 ** packaging of this file.  Please review the following information to

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

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 

    43 //

    44 //  W A R N I N G

    45 //  -------------

    46 //

    47 // This file is not part of the Qt API.  It exists purely as an

    48 // implementation detail.  This header file may change from version to

    49 // version without notice, or even be removed.

    50 //

    51 // We mean it.

    52 //

    53 

    54 //

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

    56 // Changes will be lost.

    57 //

    58 

    59 #ifndef QDECLARATIVEJSPARSER_P_H

    60 #define QDECLARATIVEJSPARSER_P_H

    61 

    62 #include "private/qdeclarativejsglobal_p.h"

    63 #include "private/qdeclarativejsgrammar_p.h"

    64 #include "private/qdeclarativejsast_p.h"

    65 #include "private/qdeclarativejsengine_p.h"

    66 

    67 #include <QtCore/QList>

    68 #include <QtCore/QString>

    69 

    70 QT_QML_BEGIN_NAMESPACE

    71 

    72 namespace QDeclarativeJS {

    73 

    74 class Engine;

    75 class NameId;

    76 

    77 class QML_PARSER_EXPORT Parser: protected QDeclarativeJSGrammar

    78 {

    79 public:

    80     union Value {

    81       int ival;

    82       double dval;

    83       NameId *sval;

    84       AST::ArgumentList *ArgumentList;

    85       AST::CaseBlock *CaseBlock;

    86       AST::CaseClause *CaseClause;

    87       AST::CaseClauses *CaseClauses;

    88       AST::Catch *Catch;

    89       AST::DefaultClause *DefaultClause;

    90       AST::ElementList *ElementList;

    91       AST::Elision *Elision;

    92       AST::ExpressionNode *Expression;

    93       AST::Finally *Finally;

    94       AST::FormalParameterList *FormalParameterList;

    95       AST::FunctionBody *FunctionBody;

    96       AST::FunctionDeclaration *FunctionDeclaration;

    97       AST::Node *Node;

    98       AST::PropertyName *PropertyName;

    99       AST::PropertyNameAndValueList *PropertyNameAndValueList;

   100       AST::SourceElement *SourceElement;

   101       AST::SourceElements *SourceElements;

   102       AST::Statement *Statement;

   103       AST::StatementList *StatementList;

   104       AST::Block *Block;

   105       AST::VariableDeclaration *VariableDeclaration;

   106       AST::VariableDeclarationList *VariableDeclarationList;

   107 

   108       AST::UiProgram *UiProgram;

   109       AST::UiImportList *UiImportList;

   110       AST::UiImport *UiImport;

   111       AST::UiParameterList *UiParameterList;

   112       AST::UiPublicMember *UiPublicMember;

   113       AST::UiObjectDefinition *UiObjectDefinition;

   114       AST::UiObjectInitializer *UiObjectInitializer;

   115       AST::UiObjectBinding *UiObjectBinding;

   116       AST::UiScriptBinding *UiScriptBinding;

   117       AST::UiArrayBinding *UiArrayBinding;

   118       AST::UiObjectMember *UiObjectMember;

   119       AST::UiObjectMemberList *UiObjectMemberList;

   120       AST::UiArrayMemberList *UiArrayMemberList;

   121       AST::UiQualifiedId *UiQualifiedId;

   122       AST::UiSignature *UiSignature;

   123       AST::UiFormalList *UiFormalList;

   124       AST::UiFormal *UiFormal;

   125     };

   126 

   127 public:

   128     Parser(Engine *engine);

   129     ~Parser();

   130 

   131     // parse a UI program

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

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

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

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

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

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

   138 

   139     AST::UiProgram *ast() const

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

   141 

   142     AST::Statement *statement() const

   143     {

   144         if (! program)

   145             return 0;

   146 

   147         return program->statementCast();

   148     }

   149 

   150     AST::ExpressionNode *expression() const

   151     {

   152         if (! program)

   153             return 0;

   154 

   155         return program->expressionCast();

   156     }

   157 

   158     AST::UiObjectMember *uiObjectMember() const

   159     {

   160         if (! program)

   161             return 0;

   162 

   163         return program->uiObjectMemberCast();

   164     }

   165 

   166     AST::Node *rootNode() const

   167     { return program; }

   168 

   169     QList<DiagnosticMessage> diagnosticMessages() const

   170     { return diagnostic_messages; }

   171 

   172     inline DiagnosticMessage diagnosticMessage() const

   173     {

   174         foreach (const DiagnosticMessage &d, diagnostic_messages) {

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

   176                 return d;

   177         }

   178 

   179         return DiagnosticMessage();

   180     }

   181 

   182     inline QString errorMessage() const

   183     { return diagnosticMessage().message; }

   184 

   185     inline int errorLineNumber() const

   186     { return diagnosticMessage().loc.startLine; }

   187 

   188     inline int errorColumnNumber() const

   189     { return diagnosticMessage().loc.startColumn; }

   190 

   191 protected:

   192     bool parse(int startToken);

   193 

   194     void reallocateStack();

   195 

   196     inline Value &sym(int index)

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

   198 

   199     inline AST::SourceLocation &loc(int index)

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

   201 

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

   203 

   204 protected:

   205     Engine *driver;

   206     int tos;

   207     int stack_size;

   208     Value *sym_stack;

   209     int *state_stack;

   210     AST::SourceLocation *location_stack;

   211 

   212     AST::Node *program;

   213 

   214     // error recovery

   215     enum { TOKEN_BUFFER_SIZE = 3 };

   216 

   217     struct SavedToken {

   218        int token;

   219        double dval;

   220        AST::SourceLocation loc;

   221     };

   222 

   223     double yylval;

   224     AST::SourceLocation yylloc;

   225     AST::SourceLocation yyprevlloc;

   226 

   227     SavedToken token_buffer[TOKEN_BUFFER_SIZE];

   228     SavedToken *first_token;

   229     SavedToken *last_token;

   230 

   231     QList<DiagnosticMessage> diagnostic_messages;

   232 };

   233 

   234 } // end of namespace QDeclarativeJS

   235 

   236 

   237 

   238 #define J_SCRIPT_REGEXPLITERAL_RULE1 78

   239 

   240 #define J_SCRIPT_REGEXPLITERAL_RULE2 79

   241 

   242 QT_QML_END_NAMESPACE

   243 

   244 

   245 

   246 #endif // QDECLARATIVEJSPARSER_P_H