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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_OBJECT_H_ | 5 #ifndef VM_OBJECT_H_ |
6 #define VM_OBJECT_H_ | 6 #define VM_OBJECT_H_ |
7 | 7 |
8 #include "include/dart_api.h" | 8 #include "include/dart_api.h" |
9 #include "platform/assert.h" | 9 #include "platform/assert.h" |
10 #include "platform/utils.h" | 10 #include "platform/utils.h" |
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1203 // Returns an instance of Double or Double::null(). | 1203 // Returns an instance of Double or Double::null(). |
1204 // 'index' points to either: | 1204 // 'index' points to either: |
1205 // - constants_list_ position of found element, or | 1205 // - constants_list_ position of found element, or |
1206 // - constants_list_ position where new canonical can be inserted. | 1206 // - constants_list_ position where new canonical can be inserted. |
1207 RawDouble* LookupCanonicalDouble(Zone* zone, | 1207 RawDouble* LookupCanonicalDouble(Zone* zone, |
1208 double value, intptr_t* index) const; | 1208 double value, intptr_t* index) const; |
1209 RawMint* LookupCanonicalMint(Zone* zone, | 1209 RawMint* LookupCanonicalMint(Zone* zone, |
1210 int64_t value, intptr_t* index) const; | 1210 int64_t value, intptr_t* index) const; |
1211 RawBigint* LookupCanonicalBigint(Zone* zone, | 1211 RawBigint* LookupCanonicalBigint(Zone* zone, |
1212 const Bigint& value, intptr_t* index) const; | 1212 const Bigint& value, intptr_t* index) const; |
| 1213 RawFraction* LookupCanonicalFraction(Zone* zone, |
| 1214 const Fraction& value, |
| 1215 intptr_t* index) const; |
1213 // The methods above are more efficient than this generic one. | 1216 // The methods above are more efficient than this generic one. |
1214 RawInstance* LookupCanonicalInstance(Zone* zone, | 1217 RawInstance* LookupCanonicalInstance(Zone* zone, |
1215 const Instance& value) const; | 1218 const Instance& value) const; |
1216 | 1219 |
1217 RawInstance* InsertCanonicalConstant(Zone* zone, | 1220 RawInstance* InsertCanonicalConstant(Zone* zone, |
1218 const Instance& constant) const; | 1221 const Instance& constant) const; |
1219 void InsertCanonicalNumber(Zone* zone, | 1222 void InsertCanonicalNumber(Zone* zone, |
1220 intptr_t index, | 1223 intptr_t index, |
1221 const Number& constant) const; | 1224 const Number& constant) const; |
1222 | 1225 |
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6337 static RawTypedData* NewDigitsFromDecCString(const char* str, intptr_t* used, | 6340 static RawTypedData* NewDigitsFromDecCString(const char* str, intptr_t* used, |
6338 Heap::Space space = Heap::kNew); | 6341 Heap::Space space = Heap::kNew); |
6339 | 6342 |
6340 static RawBigint* Allocate(intptr_t length, Heap::Space space = Heap::kNew); | 6343 static RawBigint* Allocate(intptr_t length, Heap::Space space = Heap::kNew); |
6341 | 6344 |
6342 FINAL_HEAP_OBJECT_IMPLEMENTATION(Bigint, Integer); | 6345 FINAL_HEAP_OBJECT_IMPLEMENTATION(Bigint, Integer); |
6343 friend class Class; | 6346 friend class Class; |
6344 }; | 6347 }; |
6345 | 6348 |
6346 | 6349 |
6347 // Class Double represents class Double in corelib_impl, which implements | 6350 class Fraction : public Number { |
| 6351 public: |
| 6352 RawInteger* numerator() const { |
| 6353 return raw_ptr()->numerator_; |
| 6354 } |
| 6355 RawInteger* denominator() const { |
| 6356 return raw_ptr()->denominator_; |
| 6357 } |
| 6358 virtual bool CanonicalizeEquals(const Instance& other) const; |
| 6359 |
| 6360 static RawFraction* New(Heap::Space space = Heap::kNew); // For snapshots. |
| 6361 |
| 6362 static RawFraction* New(uint64_t numerator, |
| 6363 uint64_t denominator, |
| 6364 Heap::Space space = Heap::kNew); |
| 6365 |
| 6366 // Returns a canonical Fraction object allocated in the old gen space. |
| 6367 static RawFraction* NewCanonical(const Fraction& value); |
| 6368 |
| 6369 // Returns a canonical Fraction object (allocated in the old gen space) or |
| 6370 // Fraction::null() if str points to a string that does not convert to a |
| 6371 // Fraction value. |
| 6372 static RawFraction* NewCanonical(const String& str); |
| 6373 |
| 6374 static intptr_t InstanceSize() { |
| 6375 return RoundedAllocationSize(sizeof(RawFraction)); |
| 6376 } |
| 6377 |
| 6378 static intptr_t numerator_offset() { |
| 6379 return OFFSET_OF(RawFraction, numerator_); |
| 6380 } |
| 6381 static intptr_t denominator_offset() { |
| 6382 return OFFSET_OF(RawFraction, denominator_); |
| 6383 } |
| 6384 |
| 6385 private: |
| 6386 void set_numerator(const Integer& value) const; |
| 6387 void set_denominator(const Integer& value) const; |
| 6388 |
| 6389 FINAL_HEAP_OBJECT_IMPLEMENTATION(Fraction, Number); |
| 6390 friend class Class; |
| 6391 friend class Number; |
| 6392 }; |
| 6393 |
| 6394 |
| 6395 // Class Double represents Dart class _Double in runtime/lib, which implements |
6348 // abstract class double in corelib. | 6396 // abstract class double in corelib. |
6349 class Double : public Number { | 6397 class Double : public Number { |
6350 public: | 6398 public: |
6351 double value() const { | 6399 double value() const { |
6352 return raw_ptr()->value_; | 6400 return raw_ptr()->value_; |
6353 } | 6401 } |
6354 | 6402 |
6355 bool BitwiseEqualsToDouble(double value) const; | 6403 bool BitwiseEqualsToDouble(double value) const; |
6356 virtual bool OperatorEquals(const Instance& other) const; | 6404 virtual bool OperatorEquals(const Instance& other) const; |
6357 virtual bool CanonicalizeEquals(const Instance& other) const; | 6405 virtual bool CanonicalizeEquals(const Instance& other) const; |
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8655 | 8703 |
8656 inline void TypeArguments::SetHash(intptr_t value) const { | 8704 inline void TypeArguments::SetHash(intptr_t value) const { |
8657 // This is only safe because we create a new Smi, which does not cause | 8705 // This is only safe because we create a new Smi, which does not cause |
8658 // heap allocation. | 8706 // heap allocation. |
8659 StoreSmi(&raw_ptr()->hash_, Smi::New(value)); | 8707 StoreSmi(&raw_ptr()->hash_, Smi::New(value)); |
8660 } | 8708 } |
8661 | 8709 |
8662 } // namespace dart | 8710 } // namespace dart |
8663 | 8711 |
8664 #endif // VM_OBJECT_H_ | 8712 #endif // VM_OBJECT_H_ |
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