QDeclarativeParser::Variant Class Reference

#include <qdeclarativeparser_p.h>

Public Types
enum	Type {   Invalid, Boolean, Number, String,   Script }

Public Functions
QDeclarativeJS::AST::Node *	asAST () const
bool	asBoolean () const
double	asNumber () const
QString	asScript () const
QString	asString () const
QStringList	asStringList () const
bool	isBoolean () const
bool	isNumber () const
bool	isScript () const
bool	isString () const
bool	isStringList () const
Variant &	operator= (const Variant &)
Type	type () const
	Variant ()
	Variant (const Variant &)
	Variant (bool)
	Variant (double, const QString &asWritten=QString())
	Variant (const QString &)
	Variant (const QString &, QDeclarativeJS::AST::Node *)

Properties
union {
bool   b
double   d
QDeclarativeJS::AST::Node *   n
};
QString	s
Type	t

Detailed Description

Definition at line 240 of file qdeclarativeparser_p.h.

Enumerations

Type

enum QDeclarativeParser::Variant::Type

Enumerator
Invalid
Boolean
Number
String
Script

Definition at line 243 of file qdeclarativeparser_p.h.

                  {
            Invalid,
            Boolean,
            Number,
            String,
            Script
        };

Constructors and Destructors

Variant() [1/6]

QDeclarativeParser::Variant::Variant

(

)

Definition at line 264 of file qdeclarativeparser.cpp.

: t(Invalid) {}

Variant() [2/6]

QDeclarativeParser::Variant::Variant

(

const Variant &

o

)

Definition at line 267 of file qdeclarativeparser.cpp.

: t(o.t), d(o.d), s(o.s)
{
}

Variant() [3/6]

QDeclarativeParser::Variant::Variant

(

bool

v

)

Definition at line 272 of file qdeclarativeparser.cpp.

: t(Boolean), b(v)
{
}

Variant() [4/6]

QDeclarativeParser::Variant::Variant	(	double	v,
		const QString &	asWritten = QString()
	)

Definition at line 277 of file qdeclarativeparser.cpp.

: t(Number), d(v), s(asWritten)
{
}

Variant() [5/6]

QDeclarativeParser::Variant::Variant

(

const QString &

v

)

Definition at line 282 of file qdeclarativeparser.cpp.

: t(String), s(v)
{
}

Variant() [6/6]

QDeclarativeParser::Variant::Variant	(	const QString &	v,
		QDeclarativeJS::AST::Node *	n
	)

Definition at line 287 of file qdeclarativeparser.cpp.

: t(Script), n(n), s(v)
{
}

Functions

asAST()

QDeclarativeJS::AST::Node * QDeclarativeParser::Variant::asAST

(

)

const

Definition at line 383 of file qdeclarativeparser.cpp.

Referenced by QDeclarativeBindingCompiler::compile(), and QDeclarativeCompiler::completeComponentBuild().

{
    if (type() == Script)
        return n;
    else
        return 0;
}

asBoolean()

bool QDeclarativeParser::Variant::asBoolean

(

)

const

Definition at line 305 of file qdeclarativeparser.cpp.

Referenced by QDeclarativePropertyChangesParser::compile(), QDeclarativeListModelParser::compileProperty(), and QDeclarativeCompiler::genLiteralAssignment().

{
    return b;
}

asNumber()

double QDeclarativeParser::Variant::asNumber

(

)

const

Definition at line 315 of file qdeclarativeparser.cpp.

Referenced by QDeclarativePropertyChangesParser::compile(), QDeclarativeListModelParser::compileProperty(), QDeclarativeCompiler::genLiteralAssignment(), and QDeclarativeCompiler::testLiteralAssignment().

{
    return d;
}

asScript()

QString QDeclarativeParser::Variant::asScript

(

)

const

Definition at line 363 of file qdeclarativeparser.cpp.

Referenced by QDeclarativeDomValueBinding::binding(), QDeclarativeGestureAreaParser::compile(), QDeclarativeConnectionsParser::compile(), QDeclarativePropertyChangesParser::compile(), QDeclarativeListModelParser::compileProperty(), QDeclarativeCompiler::completeComponentBuild(), and QDeclarativeCompiler::genObjectBody().

{
    switch(type()) { 
    default:
    case Invalid:
        return QString();
    case Boolean:
        return b?QLatin1String("true"):QLatin1String("false");
    case Number:
        if (s.isEmpty())
            return QString::number(d);
        else
            return s;
    case String:
        return escapedString(s);
    case Script:
        return s;
    }
}

asString()

QString QDeclarativeParser::Variant::asString

(

)

const

Definition at line 310 of file qdeclarativeparser.cpp.

Referenced by asStringList(), QDeclarativePropertyChangesParser::compile(), QDeclarativeListModelParser::compileProperty(), QDeclarativeCompiler::genLiteralAssignment(), QDeclarativeCompiler::testLiteralAssignment(), and QDeclarativeCompiler::testQualifiedEnumAssignment().

{
    return s;
}

asStringList()

QStringList QDeclarativeParser::Variant::asStringList

(

)

const

Definition at line 416 of file qdeclarativeparser.cpp.

{
    QStringList rv;
    if (isString()) {
        rv << asString();
        return rv;
    }

    AST::ArrayLiteral *array = AST::cast<AST::ArrayLiteral *>(n);
    if (!array)
        return rv;

    AST::ElementList *elements = array->elements;
    while (elements) {

        AST::StringLiteral *string = AST::cast<AST::StringLiteral *>(elements->expression);
        if (!string)
            return QStringList();
        rv.append(string->value->asString());

        elements = elements->next;
    }

    return  rv;
}

isBoolean()

bool QDeclarativeParser::Variant::isBoolean ( ) const

inline

Definition at line 261 of file qdeclarativeparser_p.h.

Referenced by QDeclarativeListModelParser::compileProperty(), QDeclarativeCompiler::genLiteralAssignment(), and QDeclarativeCompiler::testLiteralAssignment().

{ return type() == Boolean; }

isNumber()

bool QDeclarativeParser::Variant::isNumber ( ) const

inline

Definition at line 262 of file qdeclarativeparser_p.h.

Referenced by QDeclarativeListModelParser::compileProperty(), QDeclarativeCompiler::genLiteralAssignment(), and QDeclarativeCompiler::testLiteralAssignment().

{ return type() == Number; }

isScript()

bool QDeclarativeParser::Variant::isScript ( ) const

inline

Definition at line 264 of file qdeclarativeparser_p.h.

Referenced by QDeclarativeCompiler::buildListProperty(), QDeclarativeCompiler::buildPropertyLiteralAssignment(), QDeclarativeCompiler::buildValueTypeProperty(), QDeclarativeGestureAreaParser::compile(), QDeclarativeConnectionsParser::compile(), QDeclarativePropertyChangesParser::compile(), and QDeclarativeListModelParser::compileProperty().

{ return type() == Script; }

isString()

bool QDeclarativeParser::Variant::isString ( ) const

inline

Definition at line 263 of file qdeclarativeparser_p.h.

Referenced by asStringList(), QDeclarativeListModelParser::compileProperty(), isStringList(), and QDeclarativeCompiler::testLiteralAssignment().

{ return type() == String; }

isStringList()

bool QDeclarativeParser::Variant::isStringList

(

)

const

Definition at line 391 of file qdeclarativeparser.cpp.

{
    if (isString())
        return true;

    if (type() != Script || !n)
        return false;

    AST::ArrayLiteral *array = AST::cast<AST::ArrayLiteral *>(n);
    if (!array)
        return false;

    AST::ElementList *elements = array->elements;

    while (elements) {

        if (!AST::cast<AST::StringLiteral *>(elements->expression))
            return false;

        elements = elements->next;
    }

    return true;
}

operator=()

QDeclarativeParser::Variant & QDeclarativeParser::Variant::operator=

(

const Variant &

o

)

Definition at line 292 of file qdeclarativeparser.cpp.

{
    t = o.t;
    d = o.d;
    s = o.s;
    return *this;
}

type()

QDeclarativeParser::Variant::Type QDeclarativeParser::Variant::type

(

)

const

Definition at line 300 of file qdeclarativeparser.cpp.

Referenced by asAST(), asScript(), QDeclarativePropertyChangesParser::compile(), QDeclarativeListModelParser::compileProperty(), and isStringList().

{
    return t;
}

Properties

@148

union { ... }

b

bool QDeclarativeParser::Variant::b

Definition at line 277 of file qdeclarativeparser_p.h.

Referenced by asBoolean(), and asScript().

d

double QDeclarativeParser::Variant::d

Definition at line 278 of file qdeclarativeparser_p.h.

Referenced by asNumber(), asScript(), and operator=().

n

QDeclarativeJS::AST::Node* QDeclarativeParser::Variant::n

Definition at line 279 of file qdeclarativeparser_p.h.

Referenced by asAST(), asStringList(), and isStringList().

s

QString QDeclarativeParser::Variant::s

private

Definition at line 281 of file qdeclarativeparser_p.h.

Referenced by asScript(), asString(), and operator=().

t

Type QDeclarativeParser::Variant::t

private

Definition at line 275 of file qdeclarativeparser_p.h.

Referenced by operator=(), and type().

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The documentation for this class was generated from the following files:

• /src/declarative/qml/qdeclarativeparser_p.h
• /src/declarative/qml/qdeclarativeparser.cpp