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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/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
8 #include "src/deoptimizer.h" | 8 #include "src/deoptimizer.h" |
9 #include "src/lookup.h" | 9 #include "src/lookup.h" |
10 #include "src/lookup-inl.h" | 10 #include "src/lookup-inl.h" |
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309 } | 309 } |
310 | 310 |
311 | 311 |
312 bool LookupIterator::IsSpecialNumericIndex() const { | 312 bool LookupIterator::IsSpecialNumericIndex() const { |
313 if (GetStoreTarget()->IsJSTypedArray() && name()->IsString()) { | 313 if (GetStoreTarget()->IsJSTypedArray() && name()->IsString()) { |
314 Handle<String> name_string = Handle<String>::cast(name()); | 314 Handle<String> name_string = Handle<String>::cast(name()); |
315 if (name_string->length() > 0) { | 315 if (name_string->length() > 0) { |
316 double d = | 316 double d = |
317 StringToDouble(isolate()->unicode_cache(), *name_string, NO_FLAGS); | 317 StringToDouble(isolate()->unicode_cache(), *name_string, NO_FLAGS); |
318 if (!std::isnan(d)) { | 318 if (!std::isnan(d)) { |
| 319 if (String::Equals(isolate()->factory()->minus_zero_string(), |
| 320 name_string)) |
| 321 return true; |
| 322 |
319 Factory* factory = isolate()->factory(); | 323 Factory* factory = isolate()->factory(); |
320 Handle<Object> num = factory->NewNumber(d); | 324 Handle<Object> num = factory->NewNumber(d); |
321 Handle<String> roundtrip_string = factory->NumberToString(num); | 325 Handle<String> roundtrip_string = factory->NumberToString(num); |
322 if (String::Equals(name_string, roundtrip_string)) return true; | 326 if (String::Equals(name_string, roundtrip_string)) return true; |
323 } | 327 } |
324 } | 328 } |
325 } | 329 } |
326 return false; | 330 return false; |
327 } | 331 } |
328 | 332 |
329 | 333 |
330 void LookupIterator::InternalizeName() { | 334 void LookupIterator::InternalizeName() { |
331 if (name_->IsUniqueName()) return; | 335 if (name_->IsUniqueName()) return; |
332 name_ = factory()->InternalizeString(Handle<String>::cast(name_)); | 336 name_ = factory()->InternalizeString(Handle<String>::cast(name_)); |
333 } | 337 } |
334 } } // namespace v8::internal | 338 } } // namespace v8::internal |
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