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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 #ifndef V8_CONVERSIONS_H_ | 5 #ifndef V8_CONVERSIONS_H_ |
6 #define V8_CONVERSIONS_H_ | 6 #define V8_CONVERSIONS_H_ |
7 | 7 |
8 #include <limits> | 8 #include <limits> |
9 | 9 |
10 #include "src/base/logging.h" | 10 #include "src/base/logging.h" |
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191 return DoubleToInt32(number->Number()); | 191 return DoubleToInt32(number->Number()); |
192 } | 192 } |
193 | 193 |
194 | 194 |
195 inline uint32_t NumberToUint32(Object* number) { | 195 inline uint32_t NumberToUint32(Object* number) { |
196 if (number->IsSmi()) return Smi::cast(number)->value(); | 196 if (number->IsSmi()) return Smi::cast(number)->value(); |
197 return DoubleToUint32(number->Number()); | 197 return DoubleToUint32(number->Number()); |
198 } | 198 } |
199 | 199 |
200 | 200 |
201 double StringToDouble(UnicodeCache* unicode_cache, | 201 double StringToDouble(UnicodeCache* unicode_cache, Handle<String> string, |
202 String* string, | 202 int flags, double empty_string_val = 0.0); |
203 int flags, | |
204 double empty_string_val = 0.0); | |
205 | 203 |
206 | 204 |
207 inline bool TryNumberToSize(Isolate* isolate, | 205 inline bool TryNumberToSize(Isolate* isolate, |
208 Object* number, size_t* result) { | 206 Object* number, size_t* result) { |
209 SealHandleScope shs(isolate); | 207 SealHandleScope shs(isolate); |
210 if (number->IsSmi()) { | 208 if (number->IsSmi()) { |
211 int value = Smi::cast(number)->value(); | 209 int value = Smi::cast(number)->value(); |
212 DCHECK(static_cast<unsigned>(Smi::kMaxValue) | 210 DCHECK(static_cast<unsigned>(Smi::kMaxValue) |
213 <= std::numeric_limits<size_t>::max()); | 211 <= std::numeric_limits<size_t>::max()); |
214 if (value >= 0) { | 212 if (value >= 0) { |
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234 Object* number) { | 232 Object* number) { |
235 size_t result = 0; | 233 size_t result = 0; |
236 bool is_valid = TryNumberToSize(isolate, number, &result); | 234 bool is_valid = TryNumberToSize(isolate, number, &result); |
237 CHECK(is_valid); | 235 CHECK(is_valid); |
238 return result; | 236 return result; |
239 } | 237 } |
240 | 238 |
241 } } // namespace v8::internal | 239 } } // namespace v8::internal |
242 | 240 |
243 #endif // V8_CONVERSIONS_H_ | 241 #endif // V8_CONVERSIONS_H_ |
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