OLD | NEW |
1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/builtins/builtins.h" | 5 #include "src/builtins/builtins.h" |
6 #include "src/builtins/builtins-utils.h" | 6 #include "src/builtins/builtins-utils.h" |
7 | 7 |
8 #include "src/accessors.h" | 8 #include "src/accessors.h" |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/messages.h" | |
11 #include "src/property-descriptor.h" | 10 #include "src/property-descriptor.h" |
12 #include "src/string-builder.h" | 11 #include "src/string-builder.h" |
13 | 12 |
14 namespace v8 { | 13 namespace v8 { |
15 namespace internal { | 14 namespace internal { |
16 | 15 |
17 // ES6 section 19.5.1.1 Error ( message ) | 16 // ES6 section 19.5.1.1 Error ( message ) |
18 BUILTIN(ErrorConstructor) { | 17 BUILTIN(ErrorConstructor) { |
19 HandleScope scope(isolate); | 18 HandleScope scope(isolate); |
20 RETURN_RESULT_OR_FAILURE( | 19 |
21 isolate, | 20 // 1. If NewTarget is undefined, let newTarget be the active function object, |
22 ConstructError(isolate, args.target<JSFunction>(), | 21 // else let newTarget be NewTarget. |
23 Handle<Object>::cast(args.new_target()), | 22 |
24 args.atOrUndefined(isolate, 1), SKIP_FIRST, false)); | 23 Handle<JSFunction> target = args.target<JSFunction>(); |
| 24 Handle<JSReceiver> new_target; |
| 25 if (args.new_target()->IsJSReceiver()) { |
| 26 new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 27 } else { |
| 28 new_target = target; |
| 29 } |
| 30 |
| 31 // 2. Let O be ? OrdinaryCreateFromConstructor(newTarget, "%ErrorPrototype%", |
| 32 // « [[ErrorData]] »). |
| 33 Handle<JSObject> err; |
| 34 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, err, |
| 35 JSObject::New(target, new_target)); |
| 36 |
| 37 // 3. If message is not undefined, then |
| 38 // a. Let msg be ? ToString(message). |
| 39 // b. Let msgDesc be the PropertyDescriptor{[[Value]]: msg, [[Writable]]: |
| 40 // true, [[Enumerable]]: false, [[Configurable]]: true}. |
| 41 // c. Perform ! DefinePropertyOrThrow(O, "message", msgDesc). |
| 42 // 4. Return O. |
| 43 |
| 44 Handle<Object> msg = args.atOrUndefined(isolate, 1); |
| 45 if (!msg->IsUndefined(isolate)) { |
| 46 Handle<String> msg_string; |
| 47 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, msg_string, |
| 48 Object::ToString(isolate, msg)); |
| 49 RETURN_FAILURE_ON_EXCEPTION( |
| 50 isolate, |
| 51 JSObject::SetOwnPropertyIgnoreAttributes( |
| 52 err, isolate->factory()->message_string(), msg_string, DONT_ENUM)); |
| 53 } |
| 54 |
| 55 // Capture the stack trace unless we're setting up. |
| 56 if (!isolate->bootstrapper()->IsActive()) { |
| 57 // Optionally capture a more detailed stack trace for the message. |
| 58 RETURN_FAILURE_ON_EXCEPTION(isolate, |
| 59 isolate->CaptureAndSetDetailedStackTrace(err)); |
| 60 // Capture a simple stack trace for the stack property. |
| 61 RETURN_FAILURE_ON_EXCEPTION(isolate, |
| 62 isolate->CaptureAndSetSimpleStackTrace(err)); |
| 63 } |
| 64 |
| 65 return *err; |
25 } | 66 } |
26 | 67 |
27 // static | 68 // static |
28 BUILTIN(ErrorCaptureStackTrace) { | 69 BUILTIN(ErrorCaptureStackTrace) { |
29 HandleScope scope(isolate); | 70 HandleScope scope(isolate); |
30 Handle<Object> object_obj = args.atOrUndefined(isolate, 1); | 71 Handle<Object> object_obj = args.atOrUndefined(isolate, 1); |
31 if (!object_obj->IsJSObject()) { | 72 if (!object_obj->IsJSObject()) { |
32 THROW_NEW_ERROR_RETURN_FAILURE( | 73 THROW_NEW_ERROR_RETURN_FAILURE( |
33 isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj)); | 74 isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj)); |
34 } | 75 } |
35 Handle<JSObject> object = Handle<JSObject>::cast(object_obj); | 76 Handle<JSObject> object = Handle<JSObject>::cast(object_obj); |
36 Handle<Object> caller = args.atOrUndefined(isolate, 2); | 77 Handle<Object> caller = args.atOrUndefined(isolate, 2); |
37 FrameSkipMode mode = caller->IsJSFunction() ? SKIP_UNTIL_SEEN : SKIP_NONE; | |
38 | 78 |
39 // TODO(jgruber): Eagerly format the stack trace and remove accessors.h | 79 // TODO(jgruber): Eagerly format the stack trace and remove accessors.h |
40 // include. | 80 // include. |
41 | 81 |
42 // Handle writes to the global object. | 82 // Handle writes to the global object. |
43 | 83 |
44 if (object->IsJSGlobalProxy()) { | 84 if (object->IsJSGlobalProxy()) { |
45 Map* map = object->map(); | 85 Map* map = object->map(); |
46 if (map->has_hidden_prototype()) { | 86 if (map->has_hidden_prototype()) { |
47 object = handle(JSGlobalObject::cast(map->prototype()), isolate); | 87 object = handle(JSGlobalObject::cast(map->prototype()), isolate); |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
89 Map::CopyInsertDescriptor(map, &d, INSERT_TRANSITION); | 129 Map::CopyInsertDescriptor(map, &d, INSERT_TRANSITION); |
90 JSObject::MigrateToMap(object, new_map, 1); | 130 JSObject::MigrateToMap(object, new_map, 1); |
91 } | 131 } |
92 } | 132 } |
93 | 133 |
94 // Collect the stack trace. | 134 // Collect the stack trace. |
95 | 135 |
96 RETURN_FAILURE_ON_EXCEPTION(isolate, | 136 RETURN_FAILURE_ON_EXCEPTION(isolate, |
97 isolate->CaptureAndSetDetailedStackTrace(object)); | 137 isolate->CaptureAndSetDetailedStackTrace(object)); |
98 RETURN_FAILURE_ON_EXCEPTION( | 138 RETURN_FAILURE_ON_EXCEPTION( |
99 isolate, isolate->CaptureAndSetSimpleStackTrace(object, mode, caller)); | 139 isolate, isolate->CaptureAndSetSimpleStackTrace(object, caller)); |
100 | 140 |
101 return *isolate->factory()->undefined_value(); | 141 return *isolate->factory()->undefined_value(); |
102 } | 142 } |
103 | 143 |
104 namespace { | 144 namespace { |
105 | 145 |
106 MaybeHandle<String> GetStringPropertyOrDefault(Isolate* isolate, | 146 MaybeHandle<String> GetStringPropertyOrDefault(Isolate* isolate, |
107 Handle<JSReceiver> recv, | 147 Handle<JSReceiver> recv, |
108 Handle<String> key, | 148 Handle<String> key, |
109 Handle<String> default_str) { | 149 Handle<String> default_str) { |
(...skipping 51 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
161 // the code unit 0x0020 (SPACE), and msg. | 201 // the code unit 0x0020 (SPACE), and msg. |
162 IncrementalStringBuilder builder(isolate); | 202 IncrementalStringBuilder builder(isolate); |
163 builder.AppendString(name); | 203 builder.AppendString(name); |
164 builder.AppendCString(": "); | 204 builder.AppendCString(": "); |
165 builder.AppendString(msg); | 205 builder.AppendString(msg); |
166 RETURN_RESULT_OR_FAILURE(isolate, builder.Finish()); | 206 RETURN_RESULT_OR_FAILURE(isolate, builder.Finish()); |
167 } | 207 } |
168 | 208 |
169 } // namespace internal | 209 } // namespace internal |
170 } // namespace v8 | 210 } // namespace v8 |
OLD | NEW |