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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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3219 | 3219 |
3220 | 3220 |
3221 Handle<String> String::Flatten(Handle<String> string, PretenureFlag pretenure) { | 3221 Handle<String> String::Flatten(Handle<String> string, PretenureFlag pretenure) { |
3222 if (!string->IsConsString()) return string; | 3222 if (!string->IsConsString()) return string; |
3223 Handle<ConsString> cons = Handle<ConsString>::cast(string); | 3223 Handle<ConsString> cons = Handle<ConsString>::cast(string); |
3224 if (cons->IsFlat()) return handle(cons->first()); | 3224 if (cons->IsFlat()) return handle(cons->first()); |
3225 return SlowFlatten(cons, pretenure); | 3225 return SlowFlatten(cons, pretenure); |
3226 } | 3226 } |
3227 | 3227 |
3228 | 3228 |
| 3229 Handle<Name> Name::Flatten(Handle<Name> name, PretenureFlag pretenure) { |
| 3230 if (name->IsSymbol()) return name; |
| 3231 return String::Flatten(Handle<String>::cast(name)); |
| 3232 } |
| 3233 |
| 3234 |
3229 uint16_t String::Get(int index) { | 3235 uint16_t String::Get(int index) { |
3230 DCHECK(index >= 0 && index < length()); | 3236 DCHECK(index >= 0 && index < length()); |
3231 switch (StringShape(this).full_representation_tag()) { | 3237 switch (StringShape(this).full_representation_tag()) { |
3232 case kSeqStringTag | kOneByteStringTag: | 3238 case kSeqStringTag | kOneByteStringTag: |
3233 return SeqOneByteString::cast(this)->SeqOneByteStringGet(index); | 3239 return SeqOneByteString::cast(this)->SeqOneByteStringGet(index); |
3234 case kSeqStringTag | kTwoByteStringTag: | 3240 case kSeqStringTag | kTwoByteStringTag: |
3235 return SeqTwoByteString::cast(this)->SeqTwoByteStringGet(index); | 3241 return SeqTwoByteString::cast(this)->SeqTwoByteStringGet(index); |
3236 case kConsStringTag | kOneByteStringTag: | 3242 case kConsStringTag | kOneByteStringTag: |
3237 case kConsStringTag | kTwoByteStringTag: | 3243 case kConsStringTag | kTwoByteStringTag: |
3238 return ConsString::cast(this)->ConsStringGet(index); | 3244 return ConsString::cast(this)->ConsStringGet(index); |
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7358 #undef READ_SHORT_FIELD | 7364 #undef READ_SHORT_FIELD |
7359 #undef WRITE_SHORT_FIELD | 7365 #undef WRITE_SHORT_FIELD |
7360 #undef READ_BYTE_FIELD | 7366 #undef READ_BYTE_FIELD |
7361 #undef WRITE_BYTE_FIELD | 7367 #undef WRITE_BYTE_FIELD |
7362 #undef NOBARRIER_READ_BYTE_FIELD | 7368 #undef NOBARRIER_READ_BYTE_FIELD |
7363 #undef NOBARRIER_WRITE_BYTE_FIELD | 7369 #undef NOBARRIER_WRITE_BYTE_FIELD |
7364 | 7370 |
7365 } } // namespace v8::internal | 7371 } } // namespace v8::internal |
7366 | 7372 |
7367 #endif // V8_OBJECTS_INL_H_ | 7373 #endif // V8_OBJECTS_INL_H_ |
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