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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 "factory.h" | 5 #include "factory.h" |
6 | 6 |
7 #include "conversions.h" | 7 #include "conversions.h" |
8 #include "isolate-inl.h" | 8 #include "isolate-inl.h" |
9 #include "macro-assembler.h" | 9 #include "macro-assembler.h" |
10 | 10 |
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370 return character - from <= to - from; | 370 return character - from <= to - from; |
371 } | 371 } |
372 | 372 |
373 | 373 |
374 static inline Handle<String> MakeOrFindTwoCharacterString(Isolate* isolate, | 374 static inline Handle<String> MakeOrFindTwoCharacterString(Isolate* isolate, |
375 uint16_t c1, | 375 uint16_t c1, |
376 uint16_t c2) { | 376 uint16_t c2) { |
377 // Numeric strings have a different hash algorithm not known by | 377 // Numeric strings have a different hash algorithm not known by |
378 // LookupTwoCharsStringIfExists, so we skip this step for such strings. | 378 // LookupTwoCharsStringIfExists, so we skip this step for such strings. |
379 if (!Between(c1, '0', '9') || !Between(c2, '0', '9')) { | 379 if (!Between(c1, '0', '9') || !Between(c2, '0', '9')) { |
380 String* result; | 380 Handle<String> result; |
381 StringTable* table = isolate->heap()->string_table(); | 381 if (StringTable::LookupTwoCharsStringIfExists(isolate, c1, c2). |
382 if (table->LookupTwoCharsStringIfExists(c1, c2, &result)) { | 382 ToHandle(&result)) { |
383 return handle(result); | 383 return result; |
384 } | 384 } |
385 } | 385 } |
386 | 386 |
387 // Now we know the length is 2, we might as well make use of that fact | 387 // Now we know the length is 2, we might as well make use of that fact |
388 // when building the new string. | 388 // when building the new string. |
389 if (static_cast<unsigned>(c1 | c2) <= String::kMaxOneByteCharCodeU) { | 389 if (static_cast<unsigned>(c1 | c2) <= String::kMaxOneByteCharCodeU) { |
390 // We can do this. | 390 // We can do this. |
391 ASSERT(IsPowerOf2(String::kMaxOneByteCharCodeU + 1)); // because of this. | 391 ASSERT(IsPowerOf2(String::kMaxOneByteCharCodeU + 1)); // because of this. |
392 Handle<SeqOneByteString> str = | 392 Handle<SeqOneByteString> str = |
393 isolate->factory()->NewRawOneByteString(2).ToHandleChecked(); | 393 isolate->factory()->NewRawOneByteString(2).ToHandleChecked(); |
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2332 return Handle<Object>::null(); | 2332 return Handle<Object>::null(); |
2333 } | 2333 } |
2334 | 2334 |
2335 | 2335 |
2336 Handle<Object> Factory::ToBoolean(bool value) { | 2336 Handle<Object> Factory::ToBoolean(bool value) { |
2337 return value ? true_value() : false_value(); | 2337 return value ? true_value() : false_value(); |
2338 } | 2338 } |
2339 | 2339 |
2340 | 2340 |
2341 } } // namespace v8::internal | 2341 } } // namespace v8::internal |
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