The Tor Browser / file comparison
comparison: js/src/vm/ErrorObject.h
js/src/vm/ErrorObject.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:640586bbcc51 |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef vm_ErrorObject_h_ | |
| 8 #define vm_ErrorObject_h_ | |
| 9 | |
| 10 #include "jsobj.h" | |
| 11 | |
| 12 #include "vm/Shape.h" | |
| 13 | |
| 14 struct JSExnPrivate; | |
| 15 | |
| 16 /* | |
| 17 * Initialize the exception constructor/prototype hierarchy. | |
| 18 */ | |
| 19 extern JSObject * | |
| 20 js_InitExceptionClasses(JSContext *cx, JS::HandleObject obj); | |
| 21 | |
| 22 namespace js { | |
| 23 | |
| 24 class ErrorObject : public JSObject | |
| 25 { | |
| 26 static ErrorObject * | |
| 27 createProto(JSContext *cx, JS::Handle<GlobalObject*> global, JSExnType type, | |
| 28 JS::HandleObject proto); | |
| 29 | |
| 30 /* For access to createProto. */ | |
| 31 friend JSObject * | |
| 32 ::js_InitExceptionClasses(JSContext *cx, JS::HandleObject global); | |
| 33 | |
| 34 /* For access to assignInitialShape. */ | |
| 35 friend bool | |
| 36 EmptyShape::ensureInitialCustomShape<ErrorObject>(ExclusiveContext *cx, | |
| 37 Handle<ErrorObject*> obj); | |
| 38 | |
| 39 /* | |
| 40 * Assign the initial error shape to the empty object. (This shape does | |
| 41 * *not* include .message, which must be added separately if needed; see | |
| 42 * ErrorObject::init.) | |
| 43 */ | |
| 44 static Shape * | |
| 45 assignInitialShape(ExclusiveContext *cx, Handle<ErrorObject*> obj); | |
| 46 | |
| 47 static bool | |
| 48 init(JSContext *cx, Handle<ErrorObject*> obj, JSExnType type, | |
| 49 ScopedJSFreePtr<JSErrorReport> *errorReport, HandleString fileName, HandleString stack, | |
| 50 uint32_t lineNumber, uint32_t columnNumber, HandleString message); | |
| 51 | |
| 52 protected: | |
| 53 static const uint32_t EXNTYPE_SLOT = 0; | |
| 54 static const uint32_t ERROR_REPORT_SLOT = EXNTYPE_SLOT + 1; | |
| 55 static const uint32_t FILENAME_SLOT = ERROR_REPORT_SLOT + 1; | |
| 56 static const uint32_t LINENUMBER_SLOT = FILENAME_SLOT + 1; | |
| 57 static const uint32_t COLUMNNUMBER_SLOT = LINENUMBER_SLOT + 1; | |
| 58 static const uint32_t STACK_SLOT = COLUMNNUMBER_SLOT + 1; | |
| 59 static const uint32_t MESSAGE_SLOT = STACK_SLOT + 1; | |
| 60 | |
| 61 static const uint32_t RESERVED_SLOTS = MESSAGE_SLOT + 1; | |
| 62 | |
| 63 public: | |
| 64 static const Class class_; | |
| 65 | |
| 66 // Create an error of the given type corresponding to the provided location | |
| 67 // info. If |message| is non-null, then the error will have a .message | |
| 68 // property with that value; otherwise the error will have no .message | |
| 69 // property. | |
| 70 static ErrorObject * | |
| 71 create(JSContext *cx, JSExnType type, HandleString stack, HandleString fileName, | |
| 72 uint32_t lineNumber, uint32_t columnNumber, ScopedJSFreePtr<JSErrorReport> *report, | |
| 73 HandleString message); | |
| 74 | |
| 75 JSExnType type() const { | |
| 76 return JSExnType(getReservedSlot(EXNTYPE_SLOT).toInt32()); | |
| 77 } | |
| 78 | |
| 79 JSErrorReport * getErrorReport() const { | |
| 80 const Value &slot = getReservedSlot(ERROR_REPORT_SLOT); | |
| 81 if (slot.isUndefined()) | |
| 82 return nullptr; | |
| 83 return static_cast<JSErrorReport*>(slot.toPrivate()); | |
| 84 } | |
| 85 | |
| 86 JSErrorReport * getOrCreateErrorReport(JSContext *cx); | |
| 87 | |
| 88 inline JSString * fileName(JSContext *cx) const; | |
| 89 inline uint32_t lineNumber() const; | |
| 90 inline uint32_t columnNumber() const; | |
| 91 inline JSString * stack(JSContext *cx) const; | |
| 92 | |
| 93 JSString * getMessage() const { | |
| 94 const HeapSlot &slot = getReservedSlotRef(MESSAGE_SLOT); | |
| 95 return slot.isString() ? slot.toString() : nullptr; | |
| 96 } | |
| 97 }; | |
| 98 | |
| 99 } // namespace js | |
| 100 | |
| 101 #endif // vm_ErrorObject_h_ |
