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Issue 2083163003: Don't crash when trying to print a call stack of an OOM. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 6 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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/string-stream.h" 5 #include "src/string-stream.h"
6 6
7 #include "src/handles-inl.h" 7 #include "src/handles-inl.h"
8 #include "src/prototype.h" 8 #include "src/prototype.h"
9 9
10 namespace v8 { 10 namespace v8 {
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521 Add("/* warning: no JSFunction object or function name found */ "); 521 Add("/* warning: no JSFunction object or function name found */ ");
522 } 522 }
523 } 523 }
524 524
525 525
526 void StringStream::PrintPrototype(JSFunction* fun, Object* receiver) { 526 void StringStream::PrintPrototype(JSFunction* fun, Object* receiver) {
527 Object* name = fun->shared()->name(); 527 Object* name = fun->shared()->name();
528 bool print_name = false; 528 bool print_name = false;
529 Isolate* isolate = fun->GetIsolate(); 529 Isolate* isolate = fun->GetIsolate();
530 if (receiver->IsNull(isolate) || receiver->IsUndefined(isolate) || 530 if (receiver->IsNull(isolate) || receiver->IsUndefined(isolate) ||
531 receiver->IsJSProxy()) { 531 receiver->IsTheHole(isolate) || receiver->IsJSProxy()) {
532 print_name = true; 532 print_name = true;
533 } else if (isolate->context() != nullptr) { 533 } else if (isolate->context() != nullptr) {
534 if (!receiver->IsJSObject()) { 534 if (!receiver->IsJSObject()) {
535 receiver = receiver->GetRootMap(isolate)->prototype(); 535 receiver = receiver->GetRootMap(isolate)->prototype();
536 } 536 }
537 537
538 for (PrototypeIterator iter(isolate, JSObject::cast(receiver), 538 for (PrototypeIterator iter(isolate, JSObject::cast(receiver),
539 kStartAtReceiver); 539 kStartAtReceiver);
540 !iter.IsAtEnd(); iter.Advance()) { 540 !iter.IsAtEnd(); iter.Advance()) {
541 if (iter.GetCurrent()->IsJSProxy()) break; 541 if (iter.GetCurrent()->IsJSProxy()) break;
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578 MemCopy(new_space, space_, *bytes); 578 MemCopy(new_space, space_, *bytes);
579 *bytes = new_bytes; 579 *bytes = new_bytes;
580 DeleteArray(space_); 580 DeleteArray(space_);
581 space_ = new_space; 581 space_ = new_space;
582 return new_space; 582 return new_space;
583 } 583 }
584 584
585 585
586 } // namespace internal 586 } // namespace internal
587 } // namespace v8 587 } // namespace v8
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