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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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/messages.h" | 5 #include "src/messages.h" |
6 | 6 |
7 #include <memory> | 7 #include <memory> |
8 | 8 |
9 #include "src/api.h" | 9 #include "src/api.h" |
10 #include "src/execution.h" | 10 #include "src/execution.h" |
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204 Handle<String> result = JSFunction::GetName(function_); | 204 Handle<String> result = JSFunction::GetName(function_); |
205 if (result->length() != 0) return result; | 205 if (result->length() != 0) return result; |
206 | 206 |
207 if (HasScript() && | 207 if (HasScript() && |
208 GetScript()->compilation_type() == Script::COMPILATION_TYPE_EVAL) { | 208 GetScript()->compilation_type() == Script::COMPILATION_TYPE_EVAL) { |
209 return isolate_->factory()->eval_string(); | 209 return isolate_->factory()->eval_string(); |
210 } | 210 } |
211 return isolate_->factory()->null_value(); | 211 return isolate_->factory()->null_value(); |
212 } | 212 } |
213 | 213 |
214 Handle<Object> JSStackFrame::GetScriptNameOrSourceUrl() { | |
215 if (!HasScript()) return isolate_->factory()->null_value(); | |
216 Handle<Script> script = GetScript(); | |
217 Object* source_url = script->source_url(); | |
218 return (source_url->IsString()) ? handle(source_url, isolate_) | |
219 : handle(script->name(), isolate_); | |
220 } | |
221 | |
222 namespace { | 214 namespace { |
223 | 215 |
224 bool CheckMethodName(Isolate* isolate, Handle<JSObject> obj, Handle<Name> name, | 216 bool CheckMethodName(Isolate* isolate, Handle<JSObject> obj, Handle<Name> name, |
225 Handle<JSFunction> fun, | 217 Handle<JSFunction> fun, |
226 LookupIterator::Configuration config) { | 218 LookupIterator::Configuration config) { |
227 LookupIterator iter = | 219 LookupIterator iter = |
228 LookupIterator::PropertyOrElement(isolate, obj, name, config); | 220 LookupIterator::PropertyOrElement(isolate, obj, name, config); |
229 if (iter.state() == LookupIterator::DATA) { | 221 if (iter.state() == LookupIterator::DATA) { |
230 return iter.GetDataValue().is_identical_to(fun); | 222 return iter.GetDataValue().is_identical_to(fun); |
231 } else if (iter.state() == LookupIterator::ACCESSOR) { | 223 } else if (iter.state() == LookupIterator::ACCESSOR) { |
232 Handle<Object> accessors = iter.GetAccessors(); | 224 Handle<Object> accessors = iter.GetAccessors(); |
233 if (accessors->IsAccessorPair()) { | 225 if (accessors->IsAccessorPair()) { |
234 Handle<AccessorPair> pair = Handle<AccessorPair>::cast(accessors); | 226 Handle<AccessorPair> pair = Handle<AccessorPair>::cast(accessors); |
235 return pair->getter() == *fun || pair->setter() == *fun; | 227 return pair->getter() == *fun || pair->setter() == *fun; |
236 } | 228 } |
237 } | 229 } |
238 return false; | 230 return false; |
239 } | 231 } |
240 | 232 |
| 233 Handle<Object> ScriptNameOrSourceUrl(Handle<Script> script, Isolate* isolate) { |
| 234 Object* name_or_url = script->source_url(); |
| 235 if (!name_or_url->IsString()) name_or_url = script->name(); |
| 236 return handle(name_or_url, isolate); |
| 237 } |
| 238 |
241 } // namespace | 239 } // namespace |
242 | 240 |
| 241 Handle<Object> JSStackFrame::GetScriptNameOrSourceUrl() { |
| 242 if (!HasScript()) return isolate_->factory()->null_value(); |
| 243 return ScriptNameOrSourceUrl(GetScript(), isolate_); |
| 244 } |
| 245 |
243 Handle<Object> JSStackFrame::GetMethodName() { | 246 Handle<Object> JSStackFrame::GetMethodName() { |
244 if (receiver_->IsNull(isolate_) || receiver_->IsUndefined(isolate_)) { | 247 if (receiver_->IsNull(isolate_) || receiver_->IsUndefined(isolate_)) { |
245 return isolate_->factory()->null_value(); | 248 return isolate_->factory()->null_value(); |
246 } | 249 } |
247 | 250 |
248 Handle<JSReceiver> receiver = | 251 Handle<JSReceiver> receiver = |
249 Object::ToObject(isolate_, receiver_).ToHandleChecked(); | 252 Object::ToObject(isolate_, receiver_).ToHandleChecked(); |
250 if (!receiver->IsJSObject()) { | 253 if (!receiver->IsJSObject()) { |
251 return isolate_->factory()->null_value(); | 254 return isolate_->factory()->null_value(); |
252 } | 255 } |
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448 isolate_->factory()->constructor_string()); | 451 isolate_->factory()->constructor_string()); |
449 return constructor.is_identical_to(function_); | 452 return constructor.is_identical_to(function_); |
450 } | 453 } |
451 | 454 |
452 namespace { | 455 namespace { |
453 | 456 |
454 bool IsNonEmptyString(Handle<Object> object) { | 457 bool IsNonEmptyString(Handle<Object> object) { |
455 return (object->IsString() && String::cast(*object)->length() > 0); | 458 return (object->IsString() && String::cast(*object)->length() > 0); |
456 } | 459 } |
457 | 460 |
458 void AppendFileLocation(Isolate* isolate, JSStackFrame* call_site, | 461 void AppendFileLocation(Isolate* isolate, StackFrameBase* call_site, |
459 IncrementalStringBuilder* builder) { | 462 IncrementalStringBuilder* builder) { |
460 if (call_site->IsNative()) { | 463 if (call_site->IsNative()) { |
461 builder->AppendCString("native"); | 464 builder->AppendCString("native"); |
462 return; | 465 return; |
463 } | 466 } |
464 | 467 |
465 Handle<Object> file_name = call_site->GetScriptNameOrSourceUrl(); | 468 Handle<Object> file_name = call_site->GetScriptNameOrSourceUrl(); |
466 if (!file_name->IsString() && call_site->IsEval()) { | 469 if (!file_name->IsString() && call_site->IsEval()) { |
467 Handle<Object> eval_origin = call_site->GetEvalOrigin(); | 470 Handle<Object> eval_origin = call_site->GetEvalOrigin(); |
468 DCHECK(eval_origin->IsString()); | 471 DCHECK(eval_origin->IsString()); |
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610 bool JSStackFrame::HasScript() const { | 613 bool JSStackFrame::HasScript() const { |
611 return function_->shared()->script()->IsScript(); | 614 return function_->shared()->script()->IsScript(); |
612 } | 615 } |
613 | 616 |
614 Handle<Script> JSStackFrame::GetScript() const { | 617 Handle<Script> JSStackFrame::GetScript() const { |
615 return handle(Script::cast(function_->shared()->script()), isolate_); | 618 return handle(Script::cast(function_->shared()->script()), isolate_); |
616 } | 619 } |
617 | 620 |
618 void WasmStackFrame::FromFrameArray(Isolate* isolate, Handle<FrameArray> array, | 621 void WasmStackFrame::FromFrameArray(Isolate* isolate, Handle<FrameArray> array, |
619 int frame_ix) { | 622 int frame_ix) { |
620 DCHECK(array->IsWasmFrame(frame_ix)); | 623 // This function is called for both wasm and asm.js->wasm frames. |
| 624 DCHECK(array->IsWasmFrame(frame_ix) || array->IsAsmJsWasmFrame(frame_ix)); |
621 isolate_ = isolate; | 625 isolate_ = isolate; |
622 wasm_obj_ = handle(array->WasmObject(frame_ix), isolate); | 626 wasm_obj_ = handle(array->WasmObject(frame_ix), isolate); |
623 wasm_func_index_ = array->WasmFunctionIndex(frame_ix)->value(); | 627 wasm_func_index_ = array->WasmFunctionIndex(frame_ix)->value(); |
624 code_ = handle(array->Code(frame_ix), isolate); | 628 code_ = handle(array->Code(frame_ix), isolate); |
625 offset_ = array->Offset(frame_ix)->value(); | 629 offset_ = array->Offset(frame_ix)->value(); |
626 } | 630 } |
627 | 631 |
628 Handle<Object> WasmStackFrame::GetFunction() const { | 632 Handle<Object> WasmStackFrame::GetFunction() const { |
629 Handle<Object> obj(Smi::FromInt(wasm_func_index_), isolate_); | 633 Handle<Object> obj(Smi::FromInt(wasm_func_index_), isolate_); |
630 return obj; | 634 return obj; |
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660 } | 664 } |
661 | 665 |
662 int WasmStackFrame::GetPosition() const { | 666 int WasmStackFrame::GetPosition() const { |
663 return (offset_ < 0) ? (-1 - offset_) : code_->SourcePosition(offset_); | 667 return (offset_ < 0) ? (-1 - offset_) : code_->SourcePosition(offset_); |
664 } | 668 } |
665 | 669 |
666 Handle<Object> WasmStackFrame::Null() const { | 670 Handle<Object> WasmStackFrame::Null() const { |
667 return isolate_->factory()->null_value(); | 671 return isolate_->factory()->null_value(); |
668 } | 672 } |
669 | 673 |
| 674 Handle<Object> AsmJsWasmStackFrame::GetReceiver() const { |
| 675 return isolate_->global_proxy(); |
| 676 } |
| 677 |
| 678 Handle<Object> AsmJsWasmStackFrame::GetFunction() const { |
| 679 // TODO(clemensh): Return lazily created JSFunction. |
| 680 return Null(); |
| 681 } |
| 682 |
| 683 Handle<Object> AsmJsWasmStackFrame::GetFileName() { |
| 684 Handle<Script> script = |
| 685 wasm::GetAsmWasmScript(Handle<JSObject>::cast(wasm_obj_)); |
| 686 return handle(script->name(), isolate_); |
| 687 } |
| 688 |
| 689 Handle<Object> AsmJsWasmStackFrame::GetFunctionName() { |
| 690 return wasm::GetWasmFunctionNameOrNull(isolate_, wasm_obj_, wasm_func_index_); |
| 691 } |
| 692 |
| 693 Handle<Object> AsmJsWasmStackFrame::GetScriptNameOrSourceUrl() { |
| 694 Handle<Script> script = |
| 695 wasm::GetAsmWasmScript(Handle<JSObject>::cast(wasm_obj_)); |
| 696 return ScriptNameOrSourceUrl(script, isolate_); |
| 697 } |
| 698 |
| 699 int AsmJsWasmStackFrame::GetPosition() const { |
| 700 DCHECK_LE(0, offset_); |
| 701 int byte_offset = code_->SourcePosition(offset_); |
| 702 return wasm::GetAsmWasmSourcePosition(Handle<JSObject>::cast(wasm_obj_), |
| 703 wasm_func_index_, byte_offset); |
| 704 } |
| 705 |
| 706 int AsmJsWasmStackFrame::GetLineNumber() { |
| 707 DCHECK_LE(0, GetPosition()); |
| 708 Handle<Script> script = |
| 709 wasm::GetAsmWasmScript(Handle<JSObject>::cast(wasm_obj_)); |
| 710 return Script::GetLineNumber(script, GetPosition()) + 1; |
| 711 } |
| 712 |
| 713 int AsmJsWasmStackFrame::GetColumnNumber() { |
| 714 DCHECK_LE(0, GetPosition()); |
| 715 Handle<Script> script = |
| 716 wasm::GetAsmWasmScript(Handle<JSObject>::cast(wasm_obj_)); |
| 717 return Script::GetColumnNumber(script, GetPosition()) + 1; |
| 718 } |
| 719 |
| 720 MaybeHandle<String> AsmJsWasmStackFrame::ToString() { |
| 721 // The string should look exactly as the respective javascript frame string. |
| 722 // Keep this method in line to JSStackFrame::ToString(). |
| 723 |
| 724 IncrementalStringBuilder builder(isolate_); |
| 725 |
| 726 Handle<Object> function_name = GetFunctionName(); |
| 727 |
| 728 if (IsNonEmptyString(function_name)) { |
| 729 builder.AppendString(Handle<String>::cast(function_name)); |
| 730 builder.AppendCString(" ("); |
| 731 } |
| 732 |
| 733 AppendFileLocation(isolate_, this, &builder); |
| 734 |
| 735 if (IsNonEmptyString(function_name)) builder.AppendCString(")"); |
| 736 |
| 737 RETURN_RESULT(isolate_, builder.Finish(), String); |
| 738 } |
| 739 |
670 FrameArrayIterator::FrameArrayIterator(Isolate* isolate, | 740 FrameArrayIterator::FrameArrayIterator(Isolate* isolate, |
671 Handle<FrameArray> array, int frame_ix) | 741 Handle<FrameArray> array, int frame_ix) |
672 : isolate_(isolate), array_(array), next_frame_ix_(frame_ix) {} | 742 : isolate_(isolate), array_(array), next_frame_ix_(frame_ix) {} |
673 | 743 |
674 bool FrameArrayIterator::HasNext() const { | 744 bool FrameArrayIterator::HasNext() const { |
675 return (next_frame_ix_ < array_->FrameCount()); | 745 return (next_frame_ix_ < array_->FrameCount()); |
676 } | 746 } |
677 | 747 |
678 void FrameArrayIterator::Next() { next_frame_ix_++; } | 748 void FrameArrayIterator::Next() { next_frame_ix_++; } |
679 | 749 |
680 StackFrameBase* FrameArrayIterator::Frame() { | 750 StackFrameBase* FrameArrayIterator::Frame() { |
681 DCHECK(HasNext()); | 751 DCHECK(HasNext()); |
682 const int flags = array_->Flags(next_frame_ix_)->value(); | 752 const int flags = array_->Flags(next_frame_ix_)->value(); |
683 const bool is_js_frame = (flags & FrameArray::kIsWasmFrame) == 0; | 753 switch (flags & (FrameArray::kIsWasmFrame | FrameArray::kIsAsmJsWasmFrame)) { |
684 if (is_js_frame) { | 754 case 0: |
685 js_frame_.FromFrameArray(isolate_, array_, next_frame_ix_); | 755 // JavaScript Frame. |
686 return &js_frame_; | 756 js_frame_.FromFrameArray(isolate_, array_, next_frame_ix_); |
687 } else { | 757 return &js_frame_; |
688 wasm_frame_.FromFrameArray(isolate_, array_, next_frame_ix_); | 758 case FrameArray::kIsWasmFrame: |
689 return &wasm_frame_; | 759 // Wasm Frame; |
| 760 wasm_frame_.FromFrameArray(isolate_, array_, next_frame_ix_); |
| 761 return &wasm_frame_; |
| 762 case FrameArray::kIsAsmJsWasmFrame: |
| 763 // Asm.js Wasm Frame: |
| 764 asm_wasm_frame_.FromFrameArray(isolate_, array_, next_frame_ix_); |
| 765 return &asm_wasm_frame_; |
| 766 default: |
| 767 UNREACHABLE(); |
| 768 return nullptr; |
690 } | 769 } |
691 } | 770 } |
692 | 771 |
693 namespace { | 772 namespace { |
694 | 773 |
695 MaybeHandle<Object> ConstructCallSite(Isolate* isolate, | 774 MaybeHandle<Object> ConstructCallSite(Isolate* isolate, |
696 Handle<FrameArray> frame_array, | 775 Handle<FrameArray> frame_array, |
697 int frame_index) { | 776 int frame_index) { |
698 Handle<JSFunction> target = | 777 Handle<JSFunction> target = |
699 handle(isolate->native_context()->callsite_function(), isolate); | 778 handle(isolate->native_context()->callsite_function(), isolate); |
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1099 DCHECK(mode != SKIP_UNTIL_SEEN); | 1178 DCHECK(mode != SKIP_UNTIL_SEEN); |
1100 | 1179 |
1101 Handle<Object> no_caller; | 1180 Handle<Object> no_caller; |
1102 Handle<String> msg = FormatMessage(isolate, template_index, arg0, arg1, arg2); | 1181 Handle<String> msg = FormatMessage(isolate, template_index, arg0, arg1, arg2); |
1103 return ErrorUtils::Construct(isolate, constructor, constructor, msg, mode, | 1182 return ErrorUtils::Construct(isolate, constructor, constructor, msg, mode, |
1104 no_caller, false); | 1183 no_caller, false); |
1105 } | 1184 } |
1106 | 1185 |
1107 } // namespace internal | 1186 } // namespace internal |
1108 } // namespace v8 | 1187 } // namespace v8 |
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