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1 /* | 1 /* |
2 * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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274 | 274 |
275 numberValue = numberValue < 0 ? -floor(fabs(numberValue)) : floor(fabs(numbe
rValue)); | 275 numberValue = numberValue < 0 ? -floor(fabs(numberValue)) : floor(fabs(numbe
rValue)); |
276 return static_cast<T>(fmod(numberValue, LimitsTrait::numberOfValues)); | 276 return static_cast<T>(fmod(numberValue, LimitsTrait::numberOfValues)); |
277 } | 277 } |
278 | 278 |
279 int8_t toInt8(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConversi
onConfiguration configuration, ExceptionState& exceptionState) | 279 int8_t toInt8(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConversi
onConfiguration configuration, ExceptionState& exceptionState) |
280 { | 280 { |
281 return toSmallerInt<int8_t>(isolate, value, configuration, "byte", exception
State); | 281 return toSmallerInt<int8_t>(isolate, value, configuration, "byte", exception
State); |
282 } | 282 } |
283 | 283 |
284 int8_t toInt8(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
285 { | |
286 NonThrowableExceptionState exceptionState; | |
287 return toInt8(isolate, value, NormalConversion, exceptionState); | |
288 } | |
289 | |
290 uint8_t toUInt8(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConver
sionConfiguration configuration, ExceptionState& exceptionState) | 284 uint8_t toUInt8(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConver
sionConfiguration configuration, ExceptionState& exceptionState) |
291 { | 285 { |
292 return toSmallerUInt<uint8_t>(isolate, value, configuration, "octet", except
ionState); | 286 return toSmallerUInt<uint8_t>(isolate, value, configuration, "octet", except
ionState); |
293 } | 287 } |
294 | 288 |
295 uint8_t toUInt8(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
296 { | |
297 NonThrowableExceptionState exceptionState; | |
298 return toUInt8(isolate, value, NormalConversion, exceptionState); | |
299 } | |
300 | |
301 int16_t toInt16(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConver
sionConfiguration configuration, ExceptionState& exceptionState) | 289 int16_t toInt16(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConver
sionConfiguration configuration, ExceptionState& exceptionState) |
302 { | 290 { |
303 return toSmallerInt<int16_t>(isolate, value, configuration, "short", excepti
onState); | 291 return toSmallerInt<int16_t>(isolate, value, configuration, "short", excepti
onState); |
304 } | 292 } |
305 | 293 |
306 int16_t toInt16(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
307 { | |
308 NonThrowableExceptionState exceptionState; | |
309 return toInt16(isolate, value, NormalConversion, exceptionState); | |
310 } | |
311 | |
312 uint16_t toUInt16(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConv
ersionConfiguration configuration, ExceptionState& exceptionState) | 294 uint16_t toUInt16(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerConv
ersionConfiguration configuration, ExceptionState& exceptionState) |
313 { | 295 { |
314 return toSmallerUInt<uint16_t>(isolate, value, configuration, "unsigned shor
t", exceptionState); | 296 return toSmallerUInt<uint16_t>(isolate, value, configuration, "unsigned shor
t", exceptionState); |
315 } | 297 } |
316 | 298 |
317 uint16_t toUInt16(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
318 { | |
319 NonThrowableExceptionState exceptionState; | |
320 return toUInt16(isolate, value, NormalConversion, exceptionState); | |
321 } | |
322 | |
323 int32_t toInt32Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerCo
nversionConfiguration configuration, ExceptionState& exceptionState) | 299 int32_t toInt32Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerCo
nversionConfiguration configuration, ExceptionState& exceptionState) |
324 { | 300 { |
325 ASSERT(!value->IsInt32()); | 301 ASSERT(!value->IsInt32()); |
326 // Can the value be converted to a number? | 302 // Can the value be converted to a number? |
327 v8::TryCatch block(isolate); | 303 v8::TryCatch block(isolate); |
328 v8::Local<v8::Number> numberObject = value->ToNumber(isolate); | 304 v8::Local<v8::Number> numberObject = value->ToNumber(isolate); |
329 if (block.HasCaught()) { | 305 if (block.HasCaught()) { |
330 exceptionState.rethrowV8Exception(block.Exception()); | 306 exceptionState.rethrowV8Exception(block.Exception()); |
331 return 0; | 307 return 0; |
332 } | 308 } |
333 | 309 |
334 ASSERT(!numberObject.IsEmpty()); | 310 ASSERT(!numberObject.IsEmpty()); |
335 | 311 |
336 double numberValue = numberObject->Value(); | 312 double numberValue = numberObject->Value(); |
337 if (configuration == EnforceRange) | 313 if (configuration == EnforceRange) |
338 return enforceRange(numberValue, kMinInt32, kMaxInt32, "long", exception
State); | 314 return enforceRange(numberValue, kMinInt32, kMaxInt32, "long", exception
State); |
339 | 315 |
340 if (std::isnan(numberValue)) | 316 if (std::isnan(numberValue)) |
341 return 0; | 317 return 0; |
342 | 318 |
343 if (configuration == Clamp) | 319 if (configuration == Clamp) |
344 return clampTo<int32_t>(numberValue); | 320 return clampTo<int32_t>(numberValue); |
345 | 321 |
346 if (std::isinf(numberValue)) | 322 if (std::isinf(numberValue)) |
347 return 0; | 323 return 0; |
348 | 324 |
349 return numberObject->Int32Value(); | 325 return numberObject->Int32Value(); |
350 } | 326 } |
351 | 327 |
352 int32_t toInt32(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
353 { | |
354 NonThrowableExceptionState exceptionState; | |
355 return toInt32(isolate, value, NormalConversion, exceptionState); | |
356 } | |
357 | |
358 uint32_t toUInt32Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, Integer
ConversionConfiguration configuration, ExceptionState& exceptionState) | 328 uint32_t toUInt32Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, Integer
ConversionConfiguration configuration, ExceptionState& exceptionState) |
359 { | 329 { |
360 ASSERT(!value->IsUint32()); | 330 ASSERT(!value->IsUint32()); |
361 if (value->IsInt32()) { | 331 if (value->IsInt32()) { |
362 ASSERT(configuration != NormalConversion); | 332 ASSERT(configuration != NormalConversion); |
363 int32_t result = value->Int32Value(); | 333 int32_t result = value->Int32Value(); |
364 if (result >= 0) | 334 if (result >= 0) |
365 return result; | 335 return result; |
366 if (configuration == EnforceRange) { | 336 if (configuration == EnforceRange) { |
367 exceptionState.throwTypeError("Value is outside the 'unsigned long'
value range."); | 337 exceptionState.throwTypeError("Value is outside the 'unsigned long'
value range."); |
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390 | 360 |
391 if (configuration == Clamp) | 361 if (configuration == Clamp) |
392 return clampTo<uint32_t>(numberValue); | 362 return clampTo<uint32_t>(numberValue); |
393 | 363 |
394 if (std::isinf(numberValue)) | 364 if (std::isinf(numberValue)) |
395 return 0; | 365 return 0; |
396 | 366 |
397 return numberObject->Uint32Value(); | 367 return numberObject->Uint32Value(); |
398 } | 368 } |
399 | 369 |
400 uint32_t toUInt32(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
401 { | |
402 NonThrowableExceptionState exceptionState; | |
403 return toUInt32(isolate, value, NormalConversion, exceptionState); | |
404 } | |
405 | |
406 int64_t toInt64Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerCo
nversionConfiguration configuration, ExceptionState& exceptionState) | 370 int64_t toInt64Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, IntegerCo
nversionConfiguration configuration, ExceptionState& exceptionState) |
407 { | 371 { |
408 ASSERT(!value->IsInt32()); | 372 ASSERT(!value->IsInt32()); |
409 | 373 |
410 v8::Local<v8::Number> numberObject; | 374 v8::Local<v8::Number> numberObject; |
411 // Can the value be converted to a number? | 375 // Can the value be converted to a number? |
412 v8::TryCatch block(isolate); | 376 v8::TryCatch block(isolate); |
413 numberObject = value->ToNumber(isolate); | 377 numberObject = value->ToNumber(isolate); |
414 if (block.HasCaught()) { | 378 if (block.HasCaught()) { |
415 exceptionState.rethrowV8Exception(block.Exception()); | 379 exceptionState.rethrowV8Exception(block.Exception()); |
416 return 0; | 380 return 0; |
417 } | 381 } |
418 ASSERT(!numberObject.IsEmpty()); | 382 ASSERT(!numberObject.IsEmpty()); |
419 | 383 |
420 double numberValue = numberObject->Value(); | 384 double numberValue = numberObject->Value(); |
421 | 385 |
422 if (configuration == EnforceRange) | 386 if (configuration == EnforceRange) |
423 return enforceRange(numberValue, -kJSMaxInteger, kJSMaxInteger, "long lo
ng", exceptionState); | 387 return enforceRange(numberValue, -kJSMaxInteger, kJSMaxInteger, "long lo
ng", exceptionState); |
424 | 388 |
425 if (std::isnan(numberValue) || std::isinf(numberValue)) | 389 if (std::isnan(numberValue) || std::isinf(numberValue)) |
426 return 0; | 390 return 0; |
427 | 391 |
428 // NaNs and +/-Infinity should be 0, otherwise modulo 2^64. | 392 // NaNs and +/-Infinity should be 0, otherwise modulo 2^64. |
429 unsigned long long integer; | 393 unsigned long long integer; |
430 doubleToInteger(numberValue, integer); | 394 doubleToInteger(numberValue, integer); |
431 return integer; | 395 return integer; |
432 } | 396 } |
433 | 397 |
434 int64_t toInt64(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
435 { | |
436 NonThrowableExceptionState exceptionState; | |
437 return toInt64(isolate, value, NormalConversion, exceptionState); | |
438 } | |
439 | |
440 uint64_t toUInt64Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, Integer
ConversionConfiguration configuration, ExceptionState& exceptionState) | 398 uint64_t toUInt64Slow(v8::Isolate* isolate, v8::Handle<v8::Value> value, Integer
ConversionConfiguration configuration, ExceptionState& exceptionState) |
441 { | 399 { |
442 ASSERT(!value->IsUint32()); | 400 ASSERT(!value->IsUint32()); |
443 if (value->IsInt32()) { | 401 if (value->IsInt32()) { |
444 ASSERT(configuration != NormalConversion); | 402 ASSERT(configuration != NormalConversion); |
445 int32_t result = value->Int32Value(); | 403 int32_t result = value->Int32Value(); |
446 if (result >= 0) | 404 if (result >= 0) |
447 return result; | 405 return result; |
448 if (configuration == EnforceRange) { | 406 if (configuration == EnforceRange) { |
449 exceptionState.throwTypeError("Value is outside the 'unsigned long l
ong' value range."); | 407 exceptionState.throwTypeError("Value is outside the 'unsigned long l
ong' value range."); |
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476 | 434 |
477 if (std::isinf(numberValue)) | 435 if (std::isinf(numberValue)) |
478 return 0; | 436 return 0; |
479 | 437 |
480 // NaNs and +/-Infinity should be 0, otherwise modulo 2^64. | 438 // NaNs and +/-Infinity should be 0, otherwise modulo 2^64. |
481 unsigned long long integer; | 439 unsigned long long integer; |
482 doubleToInteger(numberValue, integer); | 440 doubleToInteger(numberValue, integer); |
483 return integer; | 441 return integer; |
484 } | 442 } |
485 | 443 |
486 uint64_t toUInt64(v8::Isolate* isolate, v8::Handle<v8::Value> value) | |
487 { | |
488 NonThrowableExceptionState exceptionState; | |
489 return toUInt64(isolate, value, NormalConversion, exceptionState); | |
490 } | |
491 | |
492 float toRestrictedFloat(v8::Isolate* isolate, v8::Handle<v8::Value> value, Excep
tionState& exceptionState) | 444 float toRestrictedFloat(v8::Isolate* isolate, v8::Handle<v8::Value> value, Excep
tionState& exceptionState) |
493 { | 445 { |
494 float numberValue = toFloat(isolate, value, exceptionState); | 446 float numberValue = toFloat(isolate, value, exceptionState); |
495 if (exceptionState.hadException()) | 447 if (exceptionState.hadException()) |
496 return 0; | 448 return 0; |
497 if (!std::isfinite(numberValue)) { | 449 if (!std::isfinite(numberValue)) { |
498 exceptionState.throwTypeError("The provided float value is non-finite.")
; | 450 exceptionState.throwTypeError("The provided float value is non-finite.")
; |
499 return 0; | 451 return 0; |
500 } | 452 } |
501 return numberValue; | 453 return numberValue; |
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1025 { | 977 { |
1026 v8ConstructorAttributeGetter(info); | 978 v8ConstructorAttributeGetter(info); |
1027 } | 979 } |
1028 | 980 |
1029 void v8ConstructorAttributeGetterAsAccessor(const v8::FunctionCallbackInfo<v8::V
alue>& info) | 981 void v8ConstructorAttributeGetterAsAccessor(const v8::FunctionCallbackInfo<v8::V
alue>& info) |
1030 { | 982 { |
1031 v8ConstructorAttributeGetter(info); | 983 v8ConstructorAttributeGetter(info); |
1032 } | 984 } |
1033 | 985 |
1034 } // namespace blink | 986 } // namespace blink |
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