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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
57 QT_BEGIN_NAMESPACE
58
59 namespace QV4 {
60
61 struct SyntaxErrorObject;
62
63 namespace Heap {
64
65
66 #define ErrorObjectMembers(class, Member) \
67 Member(class, Pointer, String *, stack)
68
DECLARE_HEAP_OBJECT(ErrorObject,Object)69 DECLARE_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
92 struct EvalErrorObject : ErrorObject {
93 void init(const Value &message);
94 };
95
96 struct RangeErrorObject : ErrorObject {
97 void init(const Value &message);
98 };
99
100 struct ReferenceErrorObject : ErrorObject {
101 void init(const Value &message);
102 void init(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
103 };
104
105 struct SyntaxErrorObject : ErrorObject {
106 void init(const Value &message);
107 void init(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
108 };
109
110 struct TypeErrorObject : ErrorObject {
111 void init(const Value &message);
112 };
113
114 struct URIErrorObject : ErrorObject {
115 void init(const Value &message);
116 };
117
118 struct ErrorCtor : FunctionObject {
119 void init(QV4::ExecutionContext *scope);
120 void init(QV4::ExecutionContext *scope, const QString &name);
121 };
122
123 struct EvalErrorCtor : ErrorCtor {
124 void init(QV4::ExecutionContext *scope);
125 };
126
127 struct RangeErrorCtor : ErrorCtor {
128 void init(QV4::ExecutionContext *scope);
129 };
130
131 struct ReferenceErrorCtor : ErrorCtor {
132 void init(QV4::ExecutionContext *scope);
133 };
134
135 struct SyntaxErrorCtor : ErrorCtor {
136 void init(QV4::ExecutionContext *scope);
137 };
138
139 struct TypeErrorCtor : ErrorCtor {
140 void init(QV4::ExecutionContext *scope);
141 };
142
143 struct URIErrorCtor : ErrorCtor {
144 void init(QV4::ExecutionContext *scope);
145 };
146
147 }
148
149 struct 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
182 template<>
as()183 inline const ErrorObject *Value::as() const {
184 return isManaged() && m()->internalClass->vtable->isErrorObject ? reinterpret_cast<const ErrorObject *>(this) : nullptr;
185 }
186
187 struct EvalErrorObject: ErrorObject {
188 typedef Heap::EvalErrorObject Data;
V4_PROTOTYPEEvalErrorObject189 V4_PROTOTYPE(evalErrorPrototype)
190 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
dEvalErrorObject191 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
192 };
193
194 struct RangeErrorObject: ErrorObject {
195 typedef Heap::RangeErrorObject Data;
V4_PROTOTYPERangeErrorObject196 V4_PROTOTYPE(rangeErrorPrototype)
197 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
dRangeErrorObject198 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
199 };
200
201 struct ReferenceErrorObject: ErrorObject {
202 typedef Heap::ReferenceErrorObject Data;
V4_PROTOTYPEReferenceErrorObject203 V4_PROTOTYPE(referenceErrorPrototype)
204 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
dReferenceErrorObject205 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
206 };
207
208 struct SyntaxErrorObject: ErrorObject {
209 typedef Heap::SyntaxErrorObject Data;
V4_PROTOTYPESyntaxErrorObject210 V4_PROTOTYPE(syntaxErrorPrototype)
211 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
dSyntaxErrorObject212 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
213 };
214
215 struct TypeErrorObject: ErrorObject {
216 typedef Heap::TypeErrorObject Data;
V4_PROTOTYPETypeErrorObject217 V4_PROTOTYPE(typeErrorPrototype)
218 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
dTypeErrorObject219 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
220 };
221
222 struct URIErrorObject: ErrorObject {
223 typedef Heap::URIErrorObject Data;
V4_PROTOTYPEURIErrorObject224 V4_PROTOTYPE(uRIErrorPrototype)
225 const Data *d() const { return static_cast<const Data *>(ErrorObject::d()); }
dURIErrorObject226 Data *d() { return static_cast<Data *>(ErrorObject::d()); }
227 };
228
229 struct 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
237 struct 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
245 struct 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
253 struct 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
261 struct 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
269 struct 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
277 struct 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
286 struct ErrorPrototype : Object
287 {
288 enum {
289 Index_Constructor = 0,
290 Index_Message = 1,
291 Index_Name = 2
292 };
initErrorPrototype293 void init(ExecutionEngine *engine, Object *ctor) { init(engine, ctor, this, 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
299 struct EvalErrorPrototype : Object
300 {
initEvalErrorPrototype301 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, this, Heap::ErrorObject::EvalError); }
302 };
303
304 struct RangeErrorPrototype : Object
305 {
initRangeErrorPrototype306 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, this, Heap::ErrorObject::RangeError); }
307 };
308
309 struct ReferenceErrorPrototype : Object
310 {
initReferenceErrorPrototype311 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, this, Heap::ErrorObject::ReferenceError); }
312 };
313
314 struct SyntaxErrorPrototype : Object
315 {
initSyntaxErrorPrototype316 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, this, Heap::ErrorObject::SyntaxError); }
317 };
318
319 struct TypeErrorPrototype : Object
320 {
initTypeErrorPrototype321 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, this, Heap::ErrorObject::TypeError); }
322 };
323
324 struct URIErrorPrototype : Object
325 {
initURIErrorPrototype326 void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, this, Heap::ErrorObject::URIError); }
327 };
328
329
asSyntaxError()330 inline SyntaxErrorObject *ErrorObject::asSyntaxError()
331 {
332 return d()->errorType == QV4::Heap::ErrorObject::SyntaxError ? static_cast<SyntaxErrorObject *>(this) : nullptr;
333 }
334
335
336 template <typename T>
create(ExecutionEngine * e,const Value & message,const Value * newTarget)337 Heap::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(scope.engine->id_prototype()));
341 Scoped<InternalClass> ic(scope, e->internalClasses(klass)->changePrototype(proto->d()));
342 return e->memoryManager->allocObject<T>(ic->d(), message);
343 }
344 template <typename T>
create(ExecutionEngine * e,const QString & message)345 Heap::Object *ErrorObject::create(ExecutionEngine *e, const QString &message) {
346 Scope scope(e);
347 ScopedValue v(scope, message.isEmpty() ? Encode::undefined() : e->newString(message)->asReturnedValue());
348 EngineBase::InternalClassType klass = v->isUndefined() ? EngineBase::Class_ErrorObject : EngineBase::Class_ErrorObjectWithMessage;
349 Scoped<InternalClass> ic(scope, e->internalClasses(klass)->changePrototype(T::defaultPrototype(e)->d()));
350 return e->memoryManager->allocObject<T>(ic->d(), v);
351 }
352 template <typename T>
create(ExecutionEngine * e,const QString & message,const QString & filename,int line,int column)353 Heap::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(message)->asReturnedValue());
356 EngineBase::InternalClassType klass = v->isUndefined() ? EngineBase::Class_ErrorObject : EngineBase::Class_ErrorObjectWithMessage;
357 Scoped<InternalClass> ic(scope, e->internalClasses(klass)->changePrototype(T::defaultPrototype(e)->d()));
358 return e->memoryManager->allocObject<T>(ic->d(), v, filename, line, column);
359 }
360
361
362 }
363
364 QT_END_NAMESPACE
365
366 #endif // QV4ECMAOBJECTS_P_H
367