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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 | |
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<> |
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; |
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 | |
194 | struct 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 | |
201 | struct 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 | |
208 | struct 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 | |
215 | struct 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 | |
222 | struct 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 | |
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 | }; |
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 | |
299 | struct EvalErrorPrototype : Object |
300 | { |
301 | void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::EvalError); } |
302 | }; |
303 | |
304 | struct RangeErrorPrototype : Object |
305 | { |
306 | void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::RangeError); } |
307 | }; |
308 | |
309 | struct ReferenceErrorPrototype : Object |
310 | { |
311 | void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::ReferenceError); } |
312 | }; |
313 | |
314 | struct SyntaxErrorPrototype : Object |
315 | { |
316 | void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::SyntaxError); } |
317 | }; |
318 | |
319 | struct TypeErrorPrototype : Object |
320 | { |
321 | void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::TypeError); } |
322 | }; |
323 | |
324 | struct URIErrorPrototype : Object |
325 | { |
326 | void init(ExecutionEngine *engine, Object *ctor) { ErrorPrototype::init(engine, ctor, obj: this, t: Heap::ErrorObject::URIError); } |
327 | }; |
328 | |
329 | |
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> |
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(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 | } |
344 | template <typename T> |
345 | Heap::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 | } |
352 | template <typename T> |
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(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 | |
364 | QT_END_NAMESPACE |
365 | |
366 | #endif // QV4ECMAOBJECTS_P_H |
367 | |