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39
40#include "qscriptdebuggervalue_p.h"
41
42#include <QtScript/qscriptvalue.h>
43#include <QtScript/qscriptengine.h>
44#include <QtCore/qdatastream.h>
45#include <QtCore/qdebug.h>
46#include <QtCore/qshareddata.h>
47
48QT_BEGIN_NAMESPACE
49
50/*!
51 \since 4.5
52 \class QScriptDebuggerValue
53 \internal
54
55 \brief The QScriptDebuggerValue class represents a script value.
56*/
57
58class QScriptDebuggerValuePrivate : public QSharedData
59{
60public:
61 QScriptDebuggerValuePrivate();
62 ~QScriptDebuggerValuePrivate();
63
64 QScriptDebuggerValue::ValueType type;
65 union {
66 bool booleanValue;
67 QString *stringValue;
68 double numberValue;
69 qint64 objectId;
70 };
71};
72
73QScriptDebuggerValuePrivate::QScriptDebuggerValuePrivate()
74 : type(QScriptDebuggerValue::NoValue)
75{
76}
77
78QScriptDebuggerValuePrivate::~QScriptDebuggerValuePrivate()
79{
80 if (type == QScriptDebuggerValue::StringValue)
81 delete stringValue;
82}
83
84QScriptDebuggerValue::QScriptDebuggerValue()
85 : d_ptr(0)
86{
87}
88
89QScriptDebuggerValue::QScriptDebuggerValue(const QScriptValue &value)
90 : d_ptr(0)
91{
92 if (value.isValid()) {
93 d_ptr.reset(other: new QScriptDebuggerValuePrivate);
94 if (value.isUndefined())
95 d_ptr->type = UndefinedValue;
96 else if (value.isNull())
97 d_ptr->type = NullValue;
98 else if (value.isNumber()) {
99 d_ptr->type = NumberValue;
100 d_ptr->numberValue = value.toNumber();
101 } else if (value.isBoolean()) {
102 d_ptr->type = BooleanValue;
103 d_ptr->booleanValue = value.toBoolean();
104 } else if (value.isString()) {
105 d_ptr->type = StringValue;
106 d_ptr->stringValue = new QString(value.toString());
107 } else {
108 Q_ASSERT(value.isObject());
109 d_ptr->type = ObjectValue;
110 d_ptr->objectId = value.objectId();
111 }
112 d_ptr->ref.ref();
113 }
114}
115
116QScriptDebuggerValue::QScriptDebuggerValue(double value)
117 : d_ptr(new QScriptDebuggerValuePrivate)
118{
119 d_ptr->type = NumberValue;
120 d_ptr->numberValue = value;
121 d_ptr->ref.ref();
122}
123
124QScriptDebuggerValue::QScriptDebuggerValue(bool value)
125 : d_ptr(new QScriptDebuggerValuePrivate)
126{
127 d_ptr->type = BooleanValue;
128 d_ptr->booleanValue = value;
129 d_ptr->ref.ref();
130}
131
132QScriptDebuggerValue::QScriptDebuggerValue(const QString &value)
133 : d_ptr(new QScriptDebuggerValuePrivate)
134{
135 d_ptr->type = StringValue;
136 d_ptr->stringValue = new QString(value);
137 d_ptr->ref.ref();
138}
139
140QScriptDebuggerValue::QScriptDebuggerValue(qint64 objectId)
141 : d_ptr(new QScriptDebuggerValuePrivate)
142{
143 d_ptr->type = ObjectValue;
144 d_ptr->objectId = objectId;
145 d_ptr->ref.ref();
146}
147
148QScriptDebuggerValue::QScriptDebuggerValue(ValueType type)
149 : d_ptr(new QScriptDebuggerValuePrivate)
150{
151 d_ptr->type = type;
152 d_ptr->ref.ref();
153}
154
155QScriptDebuggerValue::QScriptDebuggerValue(const QScriptDebuggerValue &other)
156 : d_ptr(other.d_ptr.data())
157{
158 if (d_ptr)
159 d_ptr->ref.ref();
160}
161
162QScriptDebuggerValue::~QScriptDebuggerValue()
163{
164}
165
166QScriptDebuggerValue &QScriptDebuggerValue::operator=(const QScriptDebuggerValue &other)
167{
168 d_ptr.assign(other: other.d_ptr.data());
169 return *this;
170}
171
172/*!
173 Returns the type of this value.
174*/
175QScriptDebuggerValue::ValueType QScriptDebuggerValue::type() const
176{
177 Q_D(const QScriptDebuggerValue);
178 if (!d)
179 return NoValue;
180 return d->type;
181}
182
183/*!
184 Returns this value as a number.
185*/
186double QScriptDebuggerValue::numberValue() const
187{
188 Q_D(const QScriptDebuggerValue);
189 if (!d)
190 return 0;
191 Q_ASSERT(d->type == NumberValue);
192 return d->numberValue;
193}
194
195/*!
196 Returns this value as a boolean.
197*/
198bool QScriptDebuggerValue::booleanValue() const
199{
200 Q_D(const QScriptDebuggerValue);
201 if (!d)
202 return false;
203 Q_ASSERT(d->type == BooleanValue);
204 return d->booleanValue;
205}
206
207/*!
208 Returns this value as a string.
209*/
210QString QScriptDebuggerValue::stringValue() const
211{
212 Q_D(const QScriptDebuggerValue);
213 if (!d)
214 return QString();
215 Q_ASSERT(d->type == StringValue);
216 return *d->stringValue;
217}
218
219/*!
220 Returns this value as an object ID.
221*/
222qint64 QScriptDebuggerValue::objectId() const
223{
224 Q_D(const QScriptDebuggerValue);
225 if (!d)
226 return -1;
227 Q_ASSERT(d->type == ObjectValue);
228 return d->objectId;
229}
230
231/*!
232 Converts this QScriptDebuggerValue to a QScriptValue in the
233 given \a engine and returns the resulting value.
234*/
235QScriptValue QScriptDebuggerValue::toScriptValue(QScriptEngine *engine) const
236{
237 Q_D(const QScriptDebuggerValue);
238 if (!d)
239 return QScriptValue();
240 switch (d->type) {
241 case NoValue:
242 return QScriptValue();
243 case UndefinedValue:
244 return engine->undefinedValue();
245 case NullValue:
246 return engine->nullValue();
247 case BooleanValue:
248 return QScriptValue(engine, d->booleanValue);
249 case StringValue:
250 return QScriptValue(engine, *d->stringValue);
251 case NumberValue:
252 return QScriptValue(engine, d->numberValue);
253 case ObjectValue:
254 return engine->objectById(id: d->objectId);
255 }
256 return QScriptValue();
257}
258
259/*!
260 Returns a string representation of this value.
261*/
262QString QScriptDebuggerValue::toString() const
263{
264 Q_D(const QScriptDebuggerValue);
265 if (!d)
266 return QString();
267 switch (d->type) {
268 case NoValue:
269 return QString();
270 case UndefinedValue:
271 return QString::fromLatin1(str: "undefined");
272 case NullValue:
273 return QString::fromLatin1(str: "null");
274 case BooleanValue:
275 if (d->booleanValue)
276 return QString::fromLatin1(str: "true");
277 else
278 return QString::fromLatin1(str: "false");
279 case StringValue:
280 return *d->stringValue;
281 case NumberValue:
282 return QString::number(d->numberValue); // ### qScriptNumberToString()
283 case ObjectValue:
284 return QString::fromLatin1(str: "[object Object]");
285 }
286 return QString();
287}
288
289/*!
290 Returns true if this QScriptDebuggerValue is equal to the \a other
291 value, otherwise returns false.
292*/
293bool QScriptDebuggerValue::operator==(const QScriptDebuggerValue &other) const
294{
295 Q_D(const QScriptDebuggerValue);
296 const QScriptDebuggerValuePrivate *od = other.d_func();
297 if (d == od)
298 return true;
299 if (!d || !od)
300 return false;
301 if (d->type != od->type)
302 return false;
303 switch (d->type) {
304 case NoValue:
305 case UndefinedValue:
306 case NullValue:
307 return true;
308 case BooleanValue:
309 return d->booleanValue == od->booleanValue;
310 case StringValue:
311 return *d->stringValue == *od->stringValue;
312 case NumberValue:
313 return d->numberValue == od->numberValue;
314 case ObjectValue:
315 return d->objectId == od->objectId;
316 }
317 return false;
318}
319
320/*!
321 Returns true if this QScriptDebuggerValue is not equal to the \a
322 other value, otherwise returns false.
323*/
324bool QScriptDebuggerValue::operator!=(const QScriptDebuggerValue &other) const
325{
326 return !(*this == other);
327}
328
329/*!
330 \relates QScriptDebuggerValue
331
332 Writes the given \a value to the specified \a stream.
333*/
334QDataStream &operator<<(QDataStream &out, const QScriptDebuggerValue &value)
335{
336 out << (quint32)value.type();
337 switch (value.type()) {
338 case QScriptDebuggerValue::NoValue:
339 case QScriptDebuggerValue::UndefinedValue:
340 case QScriptDebuggerValue::NullValue:
341 break;
342 case QScriptDebuggerValue::BooleanValue:
343 out << value.booleanValue();
344 break;
345 case QScriptDebuggerValue::StringValue:
346 out << value.stringValue();
347 break;
348 case QScriptDebuggerValue::NumberValue:
349 out << value.numberValue();
350 break;
351 case QScriptDebuggerValue::ObjectValue:
352 out << value.objectId();
353 break;
354 }
355 return out;
356}
357
358/*!
359 \relates QScriptDebuggerValue
360
361 Reads a QScriptDebuggerValue from the specified \a stream into the
362 given \a value.
363*/
364QDataStream &operator>>(QDataStream &in, QScriptDebuggerValue &value)
365{
366 quint32 type;
367 in >> type;
368 switch (QScriptDebuggerValue::ValueType(type)) {
369 case QScriptDebuggerValue::UndefinedValue:
370 case QScriptDebuggerValue::NullValue:
371 value = QScriptDebuggerValue(QScriptDebuggerValue::ValueType(type));
372 break;
373 case QScriptDebuggerValue::BooleanValue: {
374 bool b;
375 in >> b;
376 value = QScriptDebuggerValue(b);
377 } break;
378 case QScriptDebuggerValue::StringValue: {
379 QString s;
380 in >> s;
381 value = QScriptDebuggerValue(s);
382 } break;
383 case QScriptDebuggerValue::NumberValue: {
384 double d;
385 in >> d;
386 value = QScriptDebuggerValue(d);
387 } break;
388 case QScriptDebuggerValue::ObjectValue: {
389 qint64 id;
390 in >> id;
391 value = QScriptDebuggerValue(id);
392 } break;
393 case QScriptDebuggerValue::NoValue:
394 default:
395 value = QScriptDebuggerValue();
396 break;
397 }
398 return in;
399}
400
401QT_END_NAMESPACE
402

source code of qtscript/src/scripttools/debugging/qscriptdebuggervalue.cpp