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Issue 1168093002: [strong] Implement strong mode restrictions on property access (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebase Created 5 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/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/cpu-profiler.h" 7 #include "src/cpu-profiler.h"
8 #include "src/ic/call-optimization.h" 8 #include "src/ic/call-optimization.h"
9 #include "src/ic/handler-compiler.h" 9 #include "src/ic/handler-compiler.h"
10 #include "src/ic/ic.h" 10 #include "src/ic/ic.h"
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530 receiver(), scratch2(), true, value(), holder, 530 receiver(), scratch2(), true, value(), holder,
531 accessor_index); 531 accessor_index);
532 return GetCode(kind(), Code::FAST, name); 532 return GetCode(kind(), Code::FAST, name);
533 } 533 }
534 534
535 535
536 #undef __ 536 #undef __
537 537
538 538
539 void ElementHandlerCompiler::CompileElementHandlers( 539 void ElementHandlerCompiler::CompileElementHandlers(
540 MapHandleList* receiver_maps, CodeHandleList* handlers) { 540 MapHandleList* receiver_maps, CodeHandleList* handlers,
541 LanguageMode language_mode) {
541 for (int i = 0; i < receiver_maps->length(); ++i) { 542 for (int i = 0; i < receiver_maps->length(); ++i) {
542 Handle<Map> receiver_map = receiver_maps->at(i); 543 Handle<Map> receiver_map = receiver_maps->at(i);
543 Handle<Code> cached_stub; 544 Handle<Code> cached_stub;
544 545
545 if (receiver_map->IsStringMap()) { 546 if (receiver_map->IsStringMap()) {
546 cached_stub = LoadIndexedStringStub(isolate()).GetCode(); 547 cached_stub = LoadIndexedStringStub(isolate()).GetCode();
547 } else if (receiver_map->instance_type() < FIRST_JS_RECEIVER_TYPE) { 548 } else if (receiver_map->instance_type() < FIRST_JS_RECEIVER_TYPE) {
548 cached_stub = isolate()->builtins()->KeyedLoadIC_Slow(); 549 cached_stub = isolate()->builtins()->KeyedLoadIC_Slow();
549 } else { 550 } else {
550 bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE; 551 bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
551 ElementsKind elements_kind = receiver_map->elements_kind(); 552 ElementsKind elements_kind = receiver_map->elements_kind();
552 553
553 // No need to check for an elements-free prototype chain here, the 554 // No need to check for an elements-free prototype chain here, the
554 // generated stub code needs to check that dynamically anyway. 555 // generated stub code needs to check that dynamically anyway.
555 bool convert_hole_to_undefined = 556 bool convert_hole_to_undefined =
556 is_js_array && elements_kind == FAST_HOLEY_ELEMENTS && 557 (is_js_array && elements_kind == FAST_HOLEY_ELEMENTS &&
557 *receiver_map == isolate()->get_initial_js_array_map(elements_kind); 558 *receiver_map ==
559 isolate()->get_initial_js_array_map(elements_kind)) &&
560 !is_strong(language_mode);
558 561
559 if (receiver_map->has_indexed_interceptor()) { 562 if (receiver_map->has_indexed_interceptor()) {
560 cached_stub = LoadIndexedInterceptorStub(isolate()).GetCode(); 563 cached_stub = LoadIndexedInterceptorStub(isolate()).GetCode();
561 } else if (IsSloppyArgumentsElements(elements_kind)) { 564 } else if (IsSloppyArgumentsElements(elements_kind)) {
562 cached_stub = KeyedLoadSloppyArgumentsStub(isolate()).GetCode(); 565 cached_stub = KeyedLoadSloppyArgumentsStub(isolate()).GetCode();
563 } else if (IsFastElementsKind(elements_kind) || 566 } else if (IsFastElementsKind(elements_kind) ||
564 IsExternalArrayElementsKind(elements_kind) || 567 IsExternalArrayElementsKind(elements_kind) ||
565 IsFixedTypedArrayElementsKind(elements_kind)) { 568 IsFixedTypedArrayElementsKind(elements_kind)) {
566 cached_stub = LoadFastElementStub(isolate(), is_js_array, elements_kind, 569 cached_stub = LoadFastElementStub(isolate(), is_js_array, elements_kind,
567 convert_hole_to_undefined).GetCode(); 570 convert_hole_to_undefined).GetCode();
568 } else { 571 } else {
569 DCHECK(elements_kind == DICTIONARY_ELEMENTS); 572 DCHECK(elements_kind == DICTIONARY_ELEMENTS);
570 cached_stub = LoadDictionaryElementStub(isolate()).GetCode(); 573 LoadICState state = LoadICState(
574 is_strong(language_mode) ? LoadICState::kStrongModeState : 0);
575 cached_stub = LoadDictionaryElementStub(isolate(), state).GetCode();
571 } 576 }
572 } 577 }
573 578
574 handlers->Add(cached_stub); 579 handlers->Add(cached_stub);
575 } 580 }
576 } 581 }
577 } // namespace internal 582 } // namespace internal
578 } // namespace v8 583 } // namespace v8
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