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39#ifndef QV4ERROROBJECT_H
40#define QV4ERROROBJECT_H
41
42//
43// W A R N I N G
44// -------------
45//
46// This file is not part of the Qt API. It exists purely as an
47// implementation detail. This header file may change from version to
48// version without notice, or even be removed.
49//
50// We mean it.
51//
52
53#include "qv4object_p.h"
54#include "qv4functionobject_p.h"
55#include "qv4string_p.h"
56
57QT_BEGIN_NAMESPACE
58
59namespace QV4 {
60
61struct SyntaxErrorObject;
62
63namespace Heap {
64
65
66#define ErrorObjectMembers(class, Member) \
67 Member(class, Pointer, String *, stack)
68
69DECLARE_HEAP_OBJECT(ErrorObject, Object) {
70 DECLARE_MARKOBJECTS(ErrorObject);
71 enum ErrorType {
72 Error,
73 EvalError,
74 RangeError,
75 ReferenceError,
76 SyntaxError,
77 TypeError,
78 URIError
79 };
80 StackTrace *stackTrace;
81 ErrorType errorType;
82
83 void init();
84 void init(const Value &message, ErrorType t = Error);
85 void init(const Value &message, const QString &fileName, int line, int column, ErrorType t = Error);
86 void destroy() {
87 delete stackTrace;
88 Object::destroy();
89 }
90};
91
92struct EvalErrorObject : ErrorObject {
93 void init(const Value &message);
94};
95
96struct RangeErrorObject : ErrorObject {
97 void init(const Value &message);
98};
99
100struct ReferenceErrorObject : ErrorObject {
101 void init(const Value &message);
102 void init(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
103};
104
105struct SyntaxErrorObject : ErrorObject {
106 void init(const Value &message);
107 void init(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
108};
109
110struct TypeErrorObject : ErrorObject {
111 void init(const Value &message);
112};
113
114struct URIErrorObject : ErrorObject {
115 void init(const Value &message);
116};
117
118struct ErrorCtor : FunctionObject {
119 void init(QV4::ExecutionContext *scope);
120 void init(QV4::ExecutionContext *scope, const QString &name);
121};
122
123struct EvalErrorCtor : ErrorCtor {
124 void init(QV4::ExecutionContext *scope);
125};
126
127struct RangeErrorCtor : ErrorCtor {
128 void init(QV4::ExecutionContext *scope);
129};
130
131struct ReferenceErrorCtor : ErrorCtor {
132 void init(QV4::ExecutionContext *scope);
133};
134
135struct SyntaxErrorCtor : ErrorCtor {
136 void init(QV4::ExecutionContext *scope);
137};
138
139struct TypeErrorCtor : ErrorCtor {
140 void init(QV4::ExecutionContext *scope);
141};
142
143struct URIErrorCtor : ErrorCtor {
144 void init(QV4::ExecutionContext *scope);
145};
146
147}
148
149struct ErrorObject: Object {
150 enum {
151 IsErrorObject = true
152 };
153
154 enum {
155 Index_Stack = 0, // Accessor Property
156 Index_StackSetter = 1, // Accessor Property
157 Index_FileName = 2,
158 Index_LineNumber = 3,
159 Index_Message = 4
160 };
161
162 V4_OBJECT2(ErrorObject, Object)
163 Q_MANAGED_TYPE(ErrorObject)
164 V4_INTERNALCLASS(ErrorObject)
165 V4_PROTOTYPE(errorPrototype)
166 V4_NEEDS_DESTROY
167
168 template <typename T>
169 static Heap::Object *create(ExecutionEngine *e, const Value &message, const Value *newTarget);
170 template <typename T>
171 static Heap::Object *create(ExecutionEngine *e, const QString &message);
172 template <typename T>
173 static Heap::Object *create(ExecutionEngine *e, const QString &message, const QString &filename, int line, int column);
174
175 SyntaxErrorObject *asSyntaxError();
176
177 static const char *className(Heap::ErrorObject::ErrorType t);
178
179 static ReturnedValue method_get_stack(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
180};
181
182template<>
183inline const ErrorObject *Value::as() const {
184 return isManaged() && m()->internalClass->vtable->isErrorObject ? reinterpret_cast<const ErrorObject *>(this) : nullptr;
185}
186
187struct EvalErrorObject: ErrorObject {
188 typedef Heap::EvalErrorObject Data;
189 V4_PROTOTYPE(evalErrorPrototype)
190 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
191 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
192};
193
194struct RangeErrorObject: ErrorObject {
195 typedef Heap::RangeErrorObject Data;
196 V4_PROTOTYPE(rangeErrorPrototype)
197 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
198 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
199};
200
201struct ReferenceErrorObject: ErrorObject {
202 typedef Heap::ReferenceErrorObject Data;
203 V4_PROTOTYPE(referenceErrorPrototype)
204 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
205 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
206};
207
208struct SyntaxErrorObject: ErrorObject {
209 typedef Heap::SyntaxErrorObject Data;
210 V4_PROTOTYPE(syntaxErrorPrototype)
211 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
212 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
213};
214
215struct TypeErrorObject: ErrorObject {
216 typedef Heap::TypeErrorObject Data;
217 V4_PROTOTYPE(typeErrorPrototype)
218 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
219 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
220};
221
222struct URIErrorObject: ErrorObject {
223 typedef Heap::URIErrorObject Data;
224 V4_PROTOTYPE(uRIErrorPrototype)
225 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
226 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
227};
228
229struct ErrorCtor: FunctionObject
230{
231 V4_OBJECT2(ErrorCtor, FunctionObject)
232
233 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
234 static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
235};
236
237struct EvalErrorCtor: ErrorCtor
238{
239 V4_OBJECT2(EvalErrorCtor, FunctionObject)
240 V4_PROTOTYPE(errorCtor)
241
242 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
243};
244
245struct RangeErrorCtor: ErrorCtor
246{
247 V4_OBJECT2(RangeErrorCtor, FunctionObject)
248 V4_PROTOTYPE(errorCtor)
249
250 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
251};
252
253struct ReferenceErrorCtor: ErrorCtor
254{
255 V4_OBJECT2(ReferenceErrorCtor, FunctionObject)
256 V4_PROTOTYPE(errorCtor)
257
258 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
259};
260
261struct SyntaxErrorCtor: ErrorCtor
262{
263 V4_OBJECT2(SyntaxErrorCtor, FunctionObject)
264 V4_PROTOTYPE(errorCtor)
265
266 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
267};
268
269struct TypeErrorCtor: ErrorCtor
270{
271 V4_OBJECT2(TypeErrorCtor, FunctionObject)
272 V4_PROTOTYPE(errorCtor)
273
274 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
275};
276
277struct URIErrorCtor: ErrorCtor
278{
279 V4_OBJECT2(URIErrorCtor, FunctionObject)
280 V4_PROTOTYPE(errorCtor)
281
282 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
283};
284
285
286struct ErrorPrototype : Object
287{
288 enum {
289 Index_Constructor = 0,
290 Index_Message = 1,
291 Index_Name = 2
292 };
293 void init(ExecutionEngine *engine, Object *ctor) { init(engine, ctor, obj: this, t: Heap::ErrorObject::Error); }
294
295 static void init(ExecutionEngine *engine, Object *ctor, Object *obj, Heap::ErrorObject::ErrorType t);
296 static ReturnedValue method_toString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
297};
298
299struct EvalErrorPrototype : Object
300{
301 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::EvalError); }
302};
303
304struct RangeErrorPrototype : Object
305{
306 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::RangeError); }
307};
308
309struct ReferenceErrorPrototype : Object
310{
311 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::ReferenceError); }
312};
313
314struct SyntaxErrorPrototype : Object
315{
316 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::SyntaxError); }
317};
318
319struct TypeErrorPrototype : Object
320{
321 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::TypeError); }
322};
323
324struct URIErrorPrototype : Object
325{
326 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::URIError); }
327};
328
329
330inline SyntaxErrorObject *ErrorObject::asSyntaxError()
331{
332 return d()->errorType == QV4::Heap::ErrorObject::SyntaxError ? static_cast<SyntaxErrorObject *>(this) : nullptr;
333}
334
335
336template <typename T>
337Heap::Object *ErrorObject::create(ExecutionEngine *e, const Value &message, const Value *newTarget) {
338 EngineBase::InternalClassType klass = message.isUndefined() ? EngineBase::Class_ErrorObject : EngineBase::Class_ErrorObjectWithMessage;
339 Scope scope(e);
340 ScopedObject proto(scope, static_cast<const Object *>(newTarget)->get(name: scope.engine->id_prototype()));
341 Scoped<InternalClass> ic(scope, e->internalClasses(icType: klass)->changePrototype(proto: proto->d()));
342 return e->memoryManager->allocObject<T>(ic->d(), message);
343}
344template <typename T>
345Heap::Object *ErrorObject::create(ExecutionEngine *e, const QString &message) {
346 Scope scope(e);
347 ScopedValue v(scope, message.isEmpty() ? Encode::undefined() : e->newString(s: message)->asReturnedValue());
348 EngineBase::InternalClassType klass = v->isUndefined() ? EngineBase::Class_ErrorObject : EngineBase::Class_ErrorObjectWithMessage;
349 Scoped<InternalClass> ic(scope, e->internalClasses(icType: klass)->changePrototype(proto: T::defaultPrototype(e)->d()));
350 return e->memoryManager->allocObject<T>(ic->d(), v);
351}
352template <typename T>
353Heap::Object *ErrorObject::create(ExecutionEngine *e, const QString &message, const QString &filename, int line, int column) {
354 Scope scope(e);
355 ScopedValue v(scope, message.isEmpty() ? Encode::undefined() : e->newString(s: message)->asReturnedValue());
356 EngineBase::InternalClassType klass = v->isUndefined() ? EngineBase::Class_ErrorObject : EngineBase::Class_ErrorObjectWithMessage;
357 Scoped<InternalClass> ic(scope, e->internalClasses(icType: klass)->changePrototype(proto: T::defaultPrototype(e)->d()));
358 return e->memoryManager->allocObject<T>(ic->d(), v, filename, line, column);
359}
360
361
362}
363
364QT_END_NAMESPACE
365
366#endif // QV4ECMAOBJECTS_P_H
367

source code of qtdeclarative/src/qml/jsruntime/qv4errorobject_p.h