aboutsummaryrefslogtreecommitdiffstats
path: root/src/libs/qmljs/qmljscheck.h
blob: ba5f61a898d487d0716a3029426dc2819d1320e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#ifndef QMLJSCHECK_H
#define QMLJSCHECK_H

#include <qmljs/qmljsdocument.h>
#include <qmljs/qmljscontext.h>
#include <qmljs/qmljsscopebuilder.h>
#include <qmljs/qmljsscopechain.h>
#include <qmljs/qmljsstaticanalysismessage.h>
#include <qmljs/parser/qmljsastvisitor_p.h>

#include <QtCore/QCoreApplication>
#include <QtCore/QSet>
#include <QtCore/QStack>
#include <QtGui/QColor>

namespace QmlJS {

class QMLJS_EXPORT Check: protected AST::Visitor
{
    Q_DECLARE_TR_FUNCTIONS(QmlJS::Check)

    typedef QSet<QString> StringSet;

public:
    // prefer taking root scope chain?
    Check(Document::Ptr doc, const ContextPtr &context);
    virtual ~Check();

    QList<StaticAnalysis::Message> operator()();

    void enableMessage(StaticAnalysis::Type type);
    void disableMessage(StaticAnalysis::Type type);

protected:
    virtual bool preVisit(AST::Node *ast);
    virtual void postVisit(AST::Node *ast);

    virtual bool visit(AST::UiProgram *ast);
    virtual bool visit(AST::UiObjectDefinition *ast);
    virtual bool visit(AST::UiObjectBinding *ast);
    virtual bool visit(AST::UiScriptBinding *ast);
    virtual bool visit(AST::UiArrayBinding *ast);
    virtual bool visit(AST::UiPublicMember *ast);
    virtual bool visit(AST::IdentifierExpression *ast);
    virtual bool visit(AST::FieldMemberExpression *ast);
    virtual bool visit(AST::FunctionDeclaration *ast);
    virtual bool visit(AST::FunctionExpression *ast);
    virtual bool visit(AST::UiObjectInitializer *);

    virtual bool visit(AST::BinaryExpression *ast);
    virtual bool visit(AST::Block *ast);
    virtual bool visit(AST::WithStatement *ast);
    virtual bool visit(AST::VoidExpression *ast);
    virtual bool visit(AST::Expression *ast);
    virtual bool visit(AST::ExpressionStatement *ast);
    virtual bool visit(AST::IfStatement *ast);
    virtual bool visit(AST::ForStatement *ast);
    virtual bool visit(AST::LocalForStatement *ast);
    virtual bool visit(AST::WhileStatement *ast);
    virtual bool visit(AST::DoWhileStatement *ast);
    virtual bool visit(AST::CaseBlock *ast);
    virtual bool visit(AST::NewExpression *ast);
    virtual bool visit(AST::NewMemberExpression *ast);
    virtual bool visit(AST::CallExpression *ast);
    virtual bool visit(AST::StatementList *ast);
    virtual bool visit(AST::ReturnStatement *ast);
    virtual bool visit(AST::ThrowStatement *ast);
    virtual bool visit(AST::DeleteExpression *ast);
    virtual bool visit(AST::TypeOfExpression *ast);

    virtual void endVisit(QmlJS::AST::UiObjectInitializer *);

private:
    void visitQmlObject(AST::Node *ast, AST::UiQualifiedId *typeId,
                        AST::UiObjectInitializer *initializer);
    const Value *checkScopeObjectMember(const AST::UiQualifiedId *id);
    void checkAssignInCondition(AST::ExpressionNode *condition);
    void checkCaseFallthrough(AST::StatementList *statements, AST::SourceLocation errorLoc, AST::SourceLocation nextLoc);
    void checkProperty(QmlJS::AST::UiQualifiedId *);
    void checkNewExpression(AST::ExpressionNode *node);
    void checkBindingRhs(AST::Statement *statement);
    void checkExtraParentheses(AST::ExpressionNode *expression);

    void addMessages(const QList<StaticAnalysis::Message> &messages);
    void addMessage(const StaticAnalysis::Message &message);
    void addMessage(StaticAnalysis::Type type, const AST::SourceLocation &location,
                    const QString &arg1 = QString(), const QString &arg2 = QString());

    void scanCommentsForAnnotations();
    void warnAboutUnnecessarySuppressions();

    AST::Node *parent(int distance = 0);

    Document::Ptr _doc;

    ContextPtr _context;
    ScopeChain _scopeChain;
    ScopeBuilder _scopeBuilder;

    QList<StaticAnalysis::Message> _messages;
    QSet<StaticAnalysis::Type> _enabledMessages;

    const Value *_lastValue;
    QList<AST::Node *> _chain;
    QStack<StringSet> m_idStack;
    QStack<StringSet> m_propertyStack;

    class MessageTypeAndSuppression
    {
    public:
        AST::SourceLocation suppressionSource;
        StaticAnalysis::Type type;
        bool wasSuppressed;
    };

    QHash< int, QList<MessageTypeAndSuppression> > m_disabledMessageTypesByLine;

    bool _importsOk;
    bool _inStatementBinding;
};

} // namespace QmlJS

#endif // QMLJSCHECK_H