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Issue 2161953003: Remove stack overflow boilerplate (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 5 months ago
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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"
10 #include "src/property-descriptor.h" 11 #include "src/property-descriptor.h"
11 #include "src/string-builder.h" 12 #include "src/string-builder.h"
12 13
13 namespace v8 { 14 namespace v8 {
14 namespace internal { 15 namespace internal {
15 16
16 // ES6 section 19.5.1.1 Error ( message ) 17 // ES6 section 19.5.1.1 Error ( message )
17 BUILTIN(ErrorConstructor) { 18 BUILTIN(ErrorConstructor) {
18 HandleScope scope(isolate); 19 HandleScope scope(isolate);
19 20 return ConstructError(isolate, args.target<JSFunction>(),
20 // 1. If NewTarget is undefined, let newTarget be the active function object, 21 Handle<Object>::cast(args.new_target()),
21 // else let newTarget be NewTarget. 22 args.atOrUndefined(isolate, 1));
22
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;
66 } 23 }
67 24
68 // static 25 // static
69 BUILTIN(ErrorCaptureStackTrace) { 26 BUILTIN(ErrorCaptureStackTrace) {
70 HandleScope scope(isolate); 27 HandleScope scope(isolate);
71 Handle<Object> object_obj = args.atOrUndefined(isolate, 1); 28 Handle<Object> object_obj = args.atOrUndefined(isolate, 1);
72 if (!object_obj->IsJSObject()) { 29 if (!object_obj->IsJSObject()) {
73 THROW_NEW_ERROR_RETURN_FAILURE( 30 THROW_NEW_ERROR_RETURN_FAILURE(
74 isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj)); 31 isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj));
75 } 32 }
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193 // the code unit 0x0020 (SPACE), and msg. 150 // the code unit 0x0020 (SPACE), and msg.
194 IncrementalStringBuilder builder(isolate); 151 IncrementalStringBuilder builder(isolate);
195 builder.AppendString(name); 152 builder.AppendString(name);
196 builder.AppendCString(": "); 153 builder.AppendCString(": ");
197 builder.AppendString(msg); 154 builder.AppendString(msg);
198 RETURN_RESULT_OR_FAILURE(isolate, builder.Finish()); 155 RETURN_RESULT_OR_FAILURE(isolate, builder.Finish());
199 } 156 }
200 157
201 } // namespace internal 158 } // namespace internal
202 } // namespace v8 159 } // namespace v8
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