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| 1 /* | |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
| 3 * Copyright (C) 2012 Ericsson AB. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are | |
| 7 * met: | |
| 8 * | |
| 9 * * Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * * Redistributions in binary form must reproduce the above | |
| 12 * copyright notice, this list of conditions and the following disclaimer | |
| 13 * in the documentation and/or other materials provided with the | |
| 14 * distribution. | |
| 15 * * Neither the name of Google Inc. nor the names of its | |
| 16 * contributors may be used to endorse or promote products derived from | |
| 17 * this software without specific prior written permission. | |
| 18 * | |
| 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 30 */ | |
| 31 | |
| 32 #ifndef V8Binding_h | |
| 33 #define V8Binding_h | |
| 34 | |
| 35 #include "bindings/v8/DOMWrapperWorld.h" | |
| 36 #include "bindings/v8/ExceptionMessages.h" | |
| 37 #include "bindings/v8/ScriptValue.h" | |
| 38 #include "bindings/v8/V8BindingMacros.h" | |
| 39 #include "bindings/v8/V8PerIsolateData.h" | |
| 40 #include "bindings/v8/V8StringResource.h" | |
| 41 #include "bindings/v8/V8ThrowException.h" | |
| 42 #include "bindings/v8/V8ValueCache.h" | |
| 43 #include "platform/heap/Heap.h" | |
| 44 #include "wtf/MathExtras.h" | |
| 45 #include "wtf/text/AtomicString.h" | |
| 46 #include <v8.h> | |
| 47 | |
| 48 namespace WebCore { | |
| 49 | |
| 50 class LocalDOMWindow; | |
| 51 class Document; | |
| 52 class EventListener; | |
| 53 class ExecutionContext; | |
| 54 class ExceptionState; | |
| 55 class LocalFrame; | |
| 56 class NodeFilter; | |
| 57 class ScriptWrappable; | |
| 58 class XPathNSResolver; | |
| 59 | |
| 60 namespace TraceEvent { | |
| 61 class ConvertableToTraceFormat; | |
| 62 } | |
| 63 | |
| 64 const int kMaxRecursionDepth = 22; | |
| 65 | |
| 66 // Schedule a JavaScript error to be thrown. | |
| 67 v8::Handle<v8::Value> throwError(V8ErrorType, const String&, v8::Isolate*); | |
| 68 | |
| 69 // Schedule a JavaScript error to be thrown. | |
| 70 v8::Handle<v8::Value> throwError(v8::Handle<v8::Value>, v8::Isolate*); | |
| 71 | |
| 72 // A helper for throwing JavaScript TypeError. | |
| 73 v8::Handle<v8::Value> throwTypeError(const String&, v8::Isolate*); | |
| 74 | |
| 75 // Helpers for throwing JavaScript TypeErrors for arity mismatches. | |
| 76 void throwArityTypeErrorForMethod(const char* method, const char* type, const ch
ar* valid, unsigned provided, v8::Isolate*); | |
| 77 void throwArityTypeErrorForConstructor(const char* type, const char* valid, unsi
gned provided, v8::Isolate*); | |
| 78 void throwArityTypeError(ExceptionState&, const char* valid, unsigned provided); | |
| 79 void throwMinimumArityTypeErrorForMethod(const char* method, const char* type, u
nsigned expected, unsigned providedLeastNumMandatoryParams, v8::Isolate*); | |
| 80 void throwMinimumArityTypeErrorForConstructor(const char* type, unsigned expecte
d, unsigned providedLeastNumMandatoryParams, v8::Isolate*); | |
| 81 void throwMinimumArityTypeError(ExceptionState&, unsigned expected, unsigned pro
videdLeastNumMandatoryParams); | |
| 82 | |
| 83 v8::ArrayBuffer::Allocator* v8ArrayBufferAllocator(); | |
| 84 | |
| 85 template<typename CallbackInfo, typename V> | |
| 86 inline void v8SetReturnValue(const CallbackInfo& info, V v) | |
| 87 { | |
| 88 info.GetReturnValue().Set(v); | |
| 89 } | |
| 90 | |
| 91 template<typename CallbackInfo> | |
| 92 inline void v8SetReturnValueBool(const CallbackInfo& info, bool v) | |
| 93 { | |
| 94 info.GetReturnValue().Set(v); | |
| 95 } | |
| 96 | |
| 97 template<typename CallbackInfo> | |
| 98 inline void v8SetReturnValueInt(const CallbackInfo& info, int v) | |
| 99 { | |
| 100 info.GetReturnValue().Set(v); | |
| 101 } | |
| 102 | |
| 103 template<typename CallbackInfo> | |
| 104 inline void v8SetReturnValueUnsigned(const CallbackInfo& info, unsigned v) | |
| 105 { | |
| 106 info.GetReturnValue().Set(v); | |
| 107 } | |
| 108 | |
| 109 template<typename CallbackInfo> | |
| 110 inline void v8SetReturnValueNull(const CallbackInfo& info) | |
| 111 { | |
| 112 info.GetReturnValue().SetNull(); | |
| 113 } | |
| 114 | |
| 115 template<typename CallbackInfo> | |
| 116 inline void v8SetReturnValueUndefined(const CallbackInfo& info) | |
| 117 { | |
| 118 info.GetReturnValue().SetUndefined(); | |
| 119 } | |
| 120 | |
| 121 template<typename CallbackInfo> | |
| 122 inline void v8SetReturnValueEmptyString(const CallbackInfo& info) | |
| 123 { | |
| 124 info.GetReturnValue().SetEmptyString(); | |
| 125 } | |
| 126 | |
| 127 template <class CallbackInfo> | |
| 128 inline void v8SetReturnValueString(const CallbackInfo& info, const String& strin
g, v8::Isolate* isolate) | |
| 129 { | |
| 130 if (string.isNull()) { | |
| 131 v8SetReturnValueEmptyString(info); | |
| 132 return; | |
| 133 } | |
| 134 V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(inf
o.GetReturnValue(), string.impl()); | |
| 135 } | |
| 136 | |
| 137 template <class CallbackInfo> | |
| 138 inline void v8SetReturnValueStringOrNull(const CallbackInfo& info, const String&
string, v8::Isolate* isolate) | |
| 139 { | |
| 140 if (string.isNull()) { | |
| 141 v8SetReturnValueNull(info); | |
| 142 return; | |
| 143 } | |
| 144 V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(inf
o.GetReturnValue(), string.impl()); | |
| 145 } | |
| 146 | |
| 147 template <class CallbackInfo> | |
| 148 inline void v8SetReturnValueStringOrUndefined(const CallbackInfo& info, const St
ring& string, v8::Isolate* isolate) | |
| 149 { | |
| 150 if (string.isNull()) { | |
| 151 v8SetReturnValueUndefined(info); | |
| 152 return; | |
| 153 } | |
| 154 V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(inf
o.GetReturnValue(), string.impl()); | |
| 155 } | |
| 156 | |
| 157 // Convert v8::String to a WTF::String. If the V8 string is not already | |
| 158 // an external string then it is transformed into an external string at this | |
| 159 // point to avoid repeated conversions. | |
| 160 inline String toCoreString(v8::Handle<v8::String> value) | |
| 161 { | |
| 162 return v8StringToWebCoreString<String>(value, Externalize); | |
| 163 } | |
| 164 | |
| 165 inline String toCoreStringWithNullCheck(v8::Handle<v8::String> value) | |
| 166 { | |
| 167 if (value.IsEmpty() || value->IsNull()) | |
| 168 return String(); | |
| 169 return toCoreString(value); | |
| 170 } | |
| 171 | |
| 172 inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::String> value) | |
| 173 { | |
| 174 if (value.IsEmpty() || value->IsNull() || value->IsUndefined()) | |
| 175 return String(); | |
| 176 return toCoreString(value); | |
| 177 } | |
| 178 | |
| 179 inline AtomicString toCoreAtomicString(v8::Handle<v8::String> value) | |
| 180 { | |
| 181 return v8StringToWebCoreString<AtomicString>(value, Externalize); | |
| 182 } | |
| 183 | |
| 184 // This method will return a null String if the v8::Value does not contain a v8:
:String. | |
| 185 // It will not call ToString() on the v8::Value. If you want ToString() to be ca
lled, | |
| 186 // please use the TONATIVE_FOR_V8STRINGRESOURCE_*() macros instead. | |
| 187 inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::Value> value) | |
| 188 { | |
| 189 if (value.IsEmpty() || !value->IsString()) | |
| 190 return String(); | |
| 191 return toCoreString(value.As<v8::String>()); | |
| 192 } | |
| 193 | |
| 194 // Convert a string to a V8 string. | |
| 195 // Return a V8 external string that shares the underlying buffer with the given | |
| 196 // WebCore string. The reference counting mechanism is used to keep the | |
| 197 // underlying buffer alive while the string is still live in the V8 engine. | |
| 198 inline v8::Handle<v8::String> v8String(v8::Isolate* isolate, const String& strin
g) | |
| 199 { | |
| 200 if (string.isNull()) | |
| 201 return v8::String::Empty(isolate); | |
| 202 return V8PerIsolateData::from(isolate)->stringCache()->v8ExternalString(stri
ng.impl(), isolate); | |
| 203 } | |
| 204 | |
| 205 inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* s
tr) | |
| 206 { | |
| 207 ASSERT(isolate); | |
| 208 return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString
, strlen(str)); | |
| 209 } | |
| 210 | |
| 211 inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* s
tr, size_t length) | |
| 212 { | |
| 213 ASSERT(isolate); | |
| 214 return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString
, length); | |
| 215 } | |
| 216 | |
| 217 inline v8::Handle<v8::Value> v8Undefined() | |
| 218 { | |
| 219 return v8::Handle<v8::Value>(); | |
| 220 } | |
| 221 | |
| 222 // Converts a DOM object to a v8 value. | |
| 223 // This is a no-inline version of toV8(). If you want to call toV8() | |
| 224 // without creating #include cycles, you can use this function instead. | |
| 225 // Each specialized implementation will be generated. | |
| 226 template<typename T> | |
| 227 v8::Handle<v8::Value> toV8NoInline(T* impl, v8::Handle<v8::Object> creationConte
xt, v8::Isolate*); | |
| 228 | |
| 229 template <typename T> | |
| 230 struct V8ValueTraits { | |
| 231 typedef typename WTF::RemovePointer<T>::Type TypeWithoutPointer; | |
| 232 static v8::Handle<v8::Value> toV8Value(TypeWithoutPointer* const& value, v8:
:Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 233 { | |
| 234 return toV8NoInline(value, creationContext, isolate); | |
| 235 } | |
| 236 | |
| 237 typedef typename WTF::RemoveTemplate<T, RawPtr>::Type TypeWithoutRawPtr; | |
| 238 static v8::Handle<v8::Value> toV8Value(const RawPtr<TypeWithoutRawPtr>& valu
e, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 239 { | |
| 240 return toV8NoInline(value.get(), creationContext, isolate); | |
| 241 } | |
| 242 | |
| 243 // HeapVector<RefPtr> requires the following method: | |
| 244 typedef typename WTF::RemoveTemplate<T, RefPtr>::Type TypeWithoutRefPtr; | |
| 245 static v8::Handle<v8::Value> toV8Value(const RefPtr<TypeWithoutRefPtr>& valu
e, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 246 { | |
| 247 return toV8NoInline(value.get(), creationContext, isolate); | |
| 248 } | |
| 249 | |
| 250 typedef typename WTF::RemoveTemplate<T, PassRefPtr>::Type TypeWithoutPassRef
Ptr; | |
| 251 static v8::Handle<v8::Value> toV8Value(const PassRefPtr<TypeWithoutPassRefPt
r>& value, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 252 { | |
| 253 return toV8NoInline(value.get(), creationContext, isolate); | |
| 254 } | |
| 255 | |
| 256 typedef typename WTF::RemoveTemplate<T, Member>::Type TypeWithoutMember; | |
| 257 static v8::Handle<v8::Value> toV8Value(const Member<TypeWithoutMember>& valu
e, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 258 { | |
| 259 return toV8NoInline(value.get(), creationContext, isolate); | |
| 260 } | |
| 261 }; | |
| 262 | |
| 263 template <typename T, size_t inlineCapacity, typename Allocator> | |
| 264 struct V8ValueTraits<WTF::Vector<T, inlineCapacity, Allocator> > { | |
| 265 static v8::Handle<v8::Value> toV8Value(const Vector<T, inlineCapacity, Alloc
ator>& value, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 266 { | |
| 267 return v8ArrayNoInline(value, creationContext, isolate); | |
| 268 } | |
| 269 }; | |
| 270 | |
| 271 template <typename T, size_t inlineCapacity> | |
| 272 struct V8ValueTraits<HeapVector<T, inlineCapacity> > { | |
| 273 static v8::Handle<v8::Value> toV8Value(const HeapVector<T, inlineCapacity>&
value, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 274 { | |
| 275 return v8ArrayNoInline(value, creationContext, isolate); | |
| 276 } | |
| 277 }; | |
| 278 | |
| 279 template<> | |
| 280 struct V8ValueTraits<String> { | |
| 281 static inline v8::Handle<v8::Value> toV8Value(const String& value, v8::Handl
e<v8::Object>, v8::Isolate* isolate) | |
| 282 { | |
| 283 return v8String(isolate, value); | |
| 284 } | |
| 285 }; | |
| 286 | |
| 287 template<> | |
| 288 struct V8ValueTraits<AtomicString> { | |
| 289 static inline v8::Handle<v8::Value> toV8Value(const AtomicString& value, v8:
:Handle<v8::Object>, v8::Isolate* isolate) | |
| 290 { | |
| 291 return v8String(isolate, value); | |
| 292 } | |
| 293 }; | |
| 294 | |
| 295 template<size_t n> | |
| 296 struct V8ValueTraits<char[n]> { | |
| 297 static inline v8::Handle<v8::Value> toV8Value(char const (&value)[n], v8::Ha
ndle<v8::Object>, v8::Isolate* isolate) | |
| 298 { | |
| 299 return v8String(isolate, value); | |
| 300 } | |
| 301 }; | |
| 302 | |
| 303 template<> | |
| 304 struct V8ValueTraits<const char*> { | |
| 305 static inline v8::Handle<v8::Value> toV8Value(const char* const& value, v8::
Handle<v8::Object>, v8::Isolate* isolate) | |
| 306 { | |
| 307 return v8String(isolate, value); | |
| 308 } | |
| 309 }; | |
| 310 | |
| 311 template<> | |
| 312 struct V8ValueTraits<int> { | |
| 313 static inline v8::Handle<v8::Value> toV8Value(const int& value, v8::Handle<v
8::Object>, v8::Isolate* isolate) | |
| 314 { | |
| 315 return v8::Integer::New(isolate, value); | |
| 316 } | |
| 317 }; | |
| 318 | |
| 319 template<> | |
| 320 struct V8ValueTraits<long> { | |
| 321 static inline v8::Handle<v8::Value> toV8Value(const long& value, v8::Handle<
v8::Object>, v8::Isolate* isolate) | |
| 322 { | |
| 323 return v8::Integer::New(isolate, value); | |
| 324 } | |
| 325 }; | |
| 326 | |
| 327 template<> | |
| 328 struct V8ValueTraits<unsigned> { | |
| 329 static inline v8::Handle<v8::Value> toV8Value(const unsigned& value, v8::Han
dle<v8::Object>, v8::Isolate* isolate) | |
| 330 { | |
| 331 return v8::Integer::NewFromUnsigned(isolate, value); | |
| 332 } | |
| 333 }; | |
| 334 | |
| 335 template<> | |
| 336 struct V8ValueTraits<unsigned long> { | |
| 337 static inline v8::Handle<v8::Value> toV8Value(const unsigned long& value, v8
::Handle<v8::Object>, v8::Isolate* isolate) | |
| 338 { | |
| 339 return v8::Integer::NewFromUnsigned(isolate, value); | |
| 340 } | |
| 341 }; | |
| 342 | |
| 343 template<> | |
| 344 struct V8ValueTraits<float> { | |
| 345 static inline v8::Handle<v8::Value> toV8Value(const float& value, v8::Handle
<v8::Object>, v8::Isolate* isolate) | |
| 346 { | |
| 347 return v8::Number::New(isolate, value); | |
| 348 } | |
| 349 }; | |
| 350 | |
| 351 template<> | |
| 352 struct V8ValueTraits<double> { | |
| 353 static inline v8::Handle<v8::Value> toV8Value(const double& value, v8::Handl
e<v8::Object>, v8::Isolate* isolate) | |
| 354 { | |
| 355 return v8::Number::New(isolate, value); | |
| 356 } | |
| 357 }; | |
| 358 | |
| 359 template<> | |
| 360 struct V8ValueTraits<bool> { | |
| 361 static inline v8::Handle<v8::Value> toV8Value(const bool& value, v8::Handle<
v8::Object>, v8::Isolate* isolate) | |
| 362 { | |
| 363 return v8::Boolean::New(isolate, value); | |
| 364 } | |
| 365 }; | |
| 366 | |
| 367 // V8NullType and V8UndefinedType are used only for the value conversion. | |
| 368 class V8NullType { }; | |
| 369 class V8UndefinedType { }; | |
| 370 | |
| 371 template<> | |
| 372 struct V8ValueTraits<V8NullType> { | |
| 373 static inline v8::Handle<v8::Value> toV8Value(const V8NullType&, v8::Handle<
v8::Object>, v8::Isolate* isolate) | |
| 374 { | |
| 375 return v8::Null(isolate); | |
| 376 } | |
| 377 }; | |
| 378 | |
| 379 template<> | |
| 380 struct V8ValueTraits<V8UndefinedType> { | |
| 381 static inline v8::Handle<v8::Value> toV8Value(const V8UndefinedType&, v8::Ha
ndle<v8::Object>, v8::Isolate* isolate) | |
| 382 { | |
| 383 return v8::Undefined(isolate); | |
| 384 } | |
| 385 }; | |
| 386 | |
| 387 template<> | |
| 388 struct V8ValueTraits<ScriptValue> { | |
| 389 static inline v8::Handle<v8::Value> toV8Value(const ScriptValue& value, v8::
Handle<v8::Object>, v8::Isolate*) | |
| 390 { | |
| 391 return value.v8Value(); | |
| 392 } | |
| 393 }; | |
| 394 | |
| 395 template<> | |
| 396 struct V8ValueTraits<v8::Handle<v8::Value> > { | |
| 397 static inline v8::Handle<v8::Value> toV8Value(const v8::Handle<v8::Value>& v
alue, v8::Handle<v8::Object>, v8::Isolate*) | |
| 398 { | |
| 399 return value; | |
| 400 } | |
| 401 }; | |
| 402 | |
| 403 template<> | |
| 404 struct V8ValueTraits<v8::Local<v8::Value> > { | |
| 405 static inline v8::Handle<v8::Value> toV8Value(const v8::Local<v8::Value>& va
lue, v8::Handle<v8::Object>, v8::Isolate*) | |
| 406 { | |
| 407 return value; | |
| 408 } | |
| 409 }; | |
| 410 | |
| 411 template<typename T, size_t inlineCapacity> | |
| 412 v8::Handle<v8::Value> v8Array(const Vector<T, inlineCapacity>& iterator, v8::Han
dle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 413 { | |
| 414 v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size()); | |
| 415 int index = 0; | |
| 416 typename Vector<T, inlineCapacity>::const_iterator end = iterator.end(); | |
| 417 typedef V8ValueTraits<T> TraitsType; | |
| 418 for (typename Vector<T, inlineCapacity>::const_iterator iter = iterator.begi
n(); iter != end; ++iter) | |
| 419 result->Set(v8::Integer::New(isolate, index++), TraitsType::toV8Value(*i
ter, creationContext, isolate)); | |
| 420 return result; | |
| 421 } | |
| 422 | |
| 423 template<typename T, size_t inlineCapacity> | |
| 424 v8::Handle<v8::Value> v8Array(const HeapVector<T, inlineCapacity>& iterator, v8:
:Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 425 { | |
| 426 v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size()); | |
| 427 int index = 0; | |
| 428 typename HeapVector<T, inlineCapacity>::const_iterator end = iterator.end(); | |
| 429 typedef V8ValueTraits<T> TraitsType; | |
| 430 for (typename HeapVector<T, inlineCapacity>::const_iterator iter = iterator.
begin(); iter != end; ++iter) | |
| 431 result->Set(v8::Integer::New(isolate, index++), TraitsType::toV8Value(*i
ter, creationContext, isolate)); | |
| 432 return result; | |
| 433 } | |
| 434 | |
| 435 template<typename T, size_t inlineCapacity> | |
| 436 v8::Handle<v8::Value> v8ArrayNoInline(const Vector<T, inlineCapacity>& iterator,
v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 437 { | |
| 438 v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size()); | |
| 439 int index = 0; | |
| 440 typename Vector<T, inlineCapacity>::const_iterator end = iterator.end(); | |
| 441 for (typename Vector<T, inlineCapacity>::const_iterator iter = iterator.begi
n(); iter != end; ++iter) | |
| 442 result->Set(v8::Integer::New(isolate, index++), toV8NoInline(WTF::getPtr
(*iter), creationContext, isolate)); | |
| 443 return result; | |
| 444 } | |
| 445 | |
| 446 template<typename T, size_t inlineCapacity> | |
| 447 v8::Handle<v8::Value> v8ArrayNoInline(const HeapVector<T, inlineCapacity>& itera
tor, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 448 { | |
| 449 v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size()); | |
| 450 int index = 0; | |
| 451 typename HeapVector<T, inlineCapacity>::const_iterator end = iterator.end(); | |
| 452 for (typename HeapVector<T, inlineCapacity>::const_iterator iter = iterator.
begin(); iter != end; ++iter) | |
| 453 result->Set(v8::Integer::New(isolate, index++), toV8NoInline(WTF::getPtr
(*iter), creationContext, isolate)); | |
| 454 return result; | |
| 455 } | |
| 456 | |
| 457 // Conversion flags, used in toIntXX/toUIntXX. | |
| 458 enum IntegerConversionConfiguration { | |
| 459 NormalConversion, | |
| 460 EnforceRange, | |
| 461 Clamp | |
| 462 }; | |
| 463 | |
| 464 // Convert a value to a 8-bit signed integer. The conversion fails if the | |
| 465 // value cannot be converted to a number or the range violated per WebIDL: | |
| 466 // http://www.w3.org/TR/WebIDL/#es-byte | |
| 467 int8_t toInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionSt
ate&); | |
| 468 inline int8_t toInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState
) | |
| 469 { | |
| 470 return toInt8(value, NormalConversion, exceptionState); | |
| 471 } | |
| 472 | |
| 473 // Convert a value to a 8-bit integer assuming the conversion cannot fail. | |
| 474 int8_t toInt8(v8::Handle<v8::Value>); | |
| 475 | |
| 476 // Convert a value to a 8-bit unsigned integer. The conversion fails if the | |
| 477 // value cannot be converted to a number or the range violated per WebIDL: | |
| 478 // http://www.w3.org/TR/WebIDL/#es-octet | |
| 479 uint8_t toUInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, Exception
State&); | |
| 480 inline uint8_t toUInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionSta
te) | |
| 481 { | |
| 482 return toUInt8(value, NormalConversion, exceptionState); | |
| 483 } | |
| 484 | |
| 485 // Convert a value to a 8-bit unsigned integer assuming the conversion cannot fa
il. | |
| 486 uint8_t toUInt8(v8::Handle<v8::Value>); | |
| 487 | |
| 488 // Convert a value to a 16-bit signed integer. The conversion fails if the | |
| 489 // value cannot be converted to a number or the range violated per WebIDL: | |
| 490 // http://www.w3.org/TR/WebIDL/#es-short | |
| 491 int16_t toInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, Exception
State&); | |
| 492 inline int16_t toInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionSta
te) | |
| 493 { | |
| 494 return toInt16(value, NormalConversion, exceptionState); | |
| 495 } | |
| 496 | |
| 497 // Convert a value to a 16-bit integer assuming the conversion cannot fail. | |
| 498 int16_t toInt16(v8::Handle<v8::Value>); | |
| 499 | |
| 500 // Convert a value to a 16-bit unsigned integer. The conversion fails if the | |
| 501 // value cannot be converted to a number or the range violated per WebIDL: | |
| 502 // http://www.w3.org/TR/WebIDL/#es-unsigned-short | |
| 503 uint16_t toUInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, Excepti
onState&); | |
| 504 inline uint16_t toUInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionS
tate) | |
| 505 { | |
| 506 return toUInt16(value, NormalConversion, exceptionState); | |
| 507 } | |
| 508 | |
| 509 // Convert a value to a 16-bit unsigned integer assuming the conversion cannot f
ail. | |
| 510 uint16_t toUInt16(v8::Handle<v8::Value>); | |
| 511 | |
| 512 // Convert a value to a 32-bit signed integer. The conversion fails if the | |
| 513 // value cannot be converted to a number or the range violated per WebIDL: | |
| 514 // http://www.w3.org/TR/WebIDL/#es-long | |
| 515 int32_t toInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, Exception
State&); | |
| 516 inline int32_t toInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionSta
te) | |
| 517 { | |
| 518 return toInt32(value, NormalConversion, exceptionState); | |
| 519 } | |
| 520 | |
| 521 // Convert a value to a 32-bit integer assuming the conversion cannot fail. | |
| 522 int32_t toInt32(v8::Handle<v8::Value>); | |
| 523 | |
| 524 // Convert a value to a 32-bit unsigned integer. The conversion fails if the | |
| 525 // value cannot be converted to a number or the range violated per WebIDL: | |
| 526 // http://www.w3.org/TR/WebIDL/#es-unsigned-long | |
| 527 uint32_t toUInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, Excepti
onState&); | |
| 528 inline uint32_t toUInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionS
tate) | |
| 529 { | |
| 530 return toUInt32(value, NormalConversion, exceptionState); | |
| 531 } | |
| 532 | |
| 533 // Convert a value to a 32-bit unsigned integer assuming the conversion cannot f
ail. | |
| 534 uint32_t toUInt32(v8::Handle<v8::Value>); | |
| 535 | |
| 536 // Convert a value to a 64-bit signed integer. The conversion fails if the | |
| 537 // value cannot be converted to a number or the range violated per WebIDL: | |
| 538 // http://www.w3.org/TR/WebIDL/#es-long-long | |
| 539 int64_t toInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, Exception
State&); | |
| 540 inline int64_t toInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionSta
te) | |
| 541 { | |
| 542 return toInt64(value, NormalConversion, exceptionState); | |
| 543 } | |
| 544 | |
| 545 // Convert a value to a 64-bit integer assuming the conversion cannot fail. | |
| 546 int64_t toInt64(v8::Handle<v8::Value>); | |
| 547 | |
| 548 // Convert a value to a 64-bit unsigned integer. The conversion fails if the | |
| 549 // value cannot be converted to a number or the range violated per WebIDL: | |
| 550 // http://www.w3.org/TR/WebIDL/#es-unsigned-long-long | |
| 551 uint64_t toUInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, Excepti
onState&); | |
| 552 inline uint64_t toUInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionS
tate) | |
| 553 { | |
| 554 return toUInt64(value, NormalConversion, exceptionState); | |
| 555 } | |
| 556 | |
| 557 // Convert a value to a 64-bit unsigned integer assuming the conversion cannot f
ail. | |
| 558 uint64_t toUInt64(v8::Handle<v8::Value>); | |
| 559 | |
| 560 // Convert a value to a single precision float, which might fail. | |
| 561 float toFloat(v8::Handle<v8::Value>, ExceptionState&); | |
| 562 | |
| 563 // Convert a value to a single precision float assuming the conversion cannot fa
il. | |
| 564 inline float toFloat(v8::Local<v8::Value> value) | |
| 565 { | |
| 566 return static_cast<float>(value->NumberValue()); | |
| 567 } | |
| 568 | |
| 569 // Converts a value to a String, throwing if any code unit is outside 0-255. | |
| 570 String toByteString(v8::Handle<v8::Value>, ExceptionState&); | |
| 571 | |
| 572 // Converts a value to a String, replacing unmatched UTF-16 surrogates with repl
acement characters. | |
| 573 String toScalarValueString(v8::Handle<v8::Value>, ExceptionState&); | |
| 574 | |
| 575 inline v8::Handle<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate) | |
| 576 { | |
| 577 return value ? v8::True(isolate) : v8::False(isolate); | |
| 578 } | |
| 579 | |
| 580 inline double toCoreDate(v8::Handle<v8::Value> object) | |
| 581 { | |
| 582 if (object->IsDate()) | |
| 583 return v8::Handle<v8::Date>::Cast(object)->ValueOf(); | |
| 584 if (object->IsNumber()) | |
| 585 return object->NumberValue(); | |
| 586 return std::numeric_limits<double>::quiet_NaN(); | |
| 587 } | |
| 588 | |
| 589 inline v8::Handle<v8::Value> v8DateOrNaN(double value, v8::Isolate* isolate) | |
| 590 { | |
| 591 ASSERT(isolate); | |
| 592 return v8::Date::New(isolate, std::isfinite(value) ? value : std::numeric_li
mits<double>::quiet_NaN()); | |
| 593 } | |
| 594 | |
| 595 // FIXME: Remove the special casing for NodeFilter and XPathNSResolver. | |
| 596 PassRefPtrWillBeRawPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Handl
e<v8::Object>, ScriptState*); | |
| 597 PassRefPtrWillBeRawPtr<XPathNSResolver> toXPathNSResolver(v8::Handle<v8::Value>,
v8::Isolate*); | |
| 598 | |
| 599 template<class T> struct NativeValueTraits; | |
| 600 | |
| 601 template<> | |
| 602 struct NativeValueTraits<String> { | |
| 603 static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Iso
late* isolate) | |
| 604 { | |
| 605 TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, String()); | |
| 606 return stringValue; | |
| 607 } | |
| 608 }; | |
| 609 | |
| 610 template<> | |
| 611 struct NativeValueTraits<unsigned> { | |
| 612 static inline unsigned nativeValue(const v8::Handle<v8::Value>& value, v8::I
solate* isolate) | |
| 613 { | |
| 614 return toUInt32(value); | |
| 615 } | |
| 616 }; | |
| 617 | |
| 618 template<> | |
| 619 struct NativeValueTraits<float> { | |
| 620 static inline float nativeValue(const v8::Handle<v8::Value>& value, v8::Isol
ate* isolate) | |
| 621 { | |
| 622 return static_cast<float>(value->NumberValue()); | |
| 623 } | |
| 624 }; | |
| 625 | |
| 626 template<> | |
| 627 struct NativeValueTraits<double> { | |
| 628 static inline double nativeValue(const v8::Handle<v8::Value>& value, v8::Iso
late* isolate) | |
| 629 { | |
| 630 return static_cast<double>(value->NumberValue()); | |
| 631 } | |
| 632 }; | |
| 633 | |
| 634 template<> | |
| 635 struct NativeValueTraits<v8::Handle<v8::Value> > { | |
| 636 static inline v8::Handle<v8::Value> nativeValue(const v8::Handle<v8::Value>&
value, v8::Isolate* isolate) | |
| 637 { | |
| 638 return value; | |
| 639 } | |
| 640 }; | |
| 641 | |
| 642 v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value>, uint32_t& length, v8::
Isolate*); | |
| 643 | |
| 644 // Converts a JavaScript value to an array as per the Web IDL specification: | |
| 645 // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array | |
| 646 template <class T, class V8T> | |
| 647 Vector<RefPtr<T> > toRefPtrNativeArrayUnchecked(v8::Local<v8::Value> v8Value, ui
nt32_t length, v8::Isolate* isolate, bool* success = 0) | |
| 648 { | |
| 649 Vector<RefPtr<T> > result; | |
| 650 result.reserveInitialCapacity(length); | |
| 651 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value); | |
| 652 for (uint32_t i = 0; i < length; ++i) { | |
| 653 v8::Handle<v8::Value> element = object->Get(i); | |
| 654 if (V8T::hasInstance(element, isolate)) { | |
| 655 v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(
element); | |
| 656 result.uncheckedAppend(V8T::toNative(elementObject)); | |
| 657 } else { | |
| 658 if (success) | |
| 659 *success = false; | |
| 660 throwTypeError("Invalid Array element type", isolate); | |
| 661 return Vector<RefPtr<T> >(); | |
| 662 } | |
| 663 } | |
| 664 return result; | |
| 665 } | |
| 666 | |
| 667 template <class T, class V8T> | |
| 668 Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, int argument
Index, v8::Isolate* isolate, bool* success = 0) | |
| 669 { | |
| 670 if (success) | |
| 671 *success = true; | |
| 672 | |
| 673 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 674 uint32_t length = 0; | |
| 675 if (value->IsArray()) { | |
| 676 length = v8::Local<v8::Array>::Cast(v8Value)->Length(); | |
| 677 } else if (toV8Sequence(value, length, isolate).IsEmpty()) { | |
| 678 throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argument
Index), isolate); | |
| 679 return Vector<RefPtr<T> >(); | |
| 680 } | |
| 681 return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, succes
s); | |
| 682 } | |
| 683 | |
| 684 template <class T, class V8T> | |
| 685 Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, const String
& propertyName, v8::Isolate* isolate, bool* success = 0) | |
| 686 { | |
| 687 if (success) | |
| 688 *success = true; | |
| 689 | |
| 690 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 691 uint32_t length = 0; | |
| 692 if (value->IsArray()) { | |
| 693 length = v8::Local<v8::Array>::Cast(v8Value)->Length(); | |
| 694 } else if (toV8Sequence(value, length, isolate).IsEmpty()) { | |
| 695 throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName)
, isolate); | |
| 696 return Vector<RefPtr<T> >(); | |
| 697 } | |
| 698 return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, succes
s); | |
| 699 } | |
| 700 | |
| 701 template <class T, class V8T> | |
| 702 WillBeHeapVector<RefPtrWillBeMember<T> > toRefPtrWillBeMemberNativeArray(v8::Han
dle<v8::Value> value, int argumentIndex, v8::Isolate* isolate, bool* success = 0
) | |
| 703 { | |
| 704 if (success) | |
| 705 *success = true; | |
| 706 | |
| 707 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 708 uint32_t length = 0; | |
| 709 if (value->IsArray()) { | |
| 710 length = v8::Local<v8::Array>::Cast(v8Value)->Length(); | |
| 711 } else if (toV8Sequence(value, length, isolate).IsEmpty()) { | |
| 712 throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argument
Index), isolate); | |
| 713 return WillBeHeapVector<RefPtrWillBeMember<T> >(); | |
| 714 } | |
| 715 | |
| 716 WillBeHeapVector<RefPtrWillBeMember<T> > result; | |
| 717 result.reserveInitialCapacity(length); | |
| 718 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value); | |
| 719 for (uint32_t i = 0; i < length; ++i) { | |
| 720 v8::Handle<v8::Value> element = object->Get(i); | |
| 721 if (V8T::hasInstance(element, isolate)) { | |
| 722 v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(
element); | |
| 723 result.uncheckedAppend(V8T::toNative(elementObject)); | |
| 724 } else { | |
| 725 if (success) | |
| 726 *success = false; | |
| 727 throwTypeError("Invalid Array element type", isolate); | |
| 728 return WillBeHeapVector<RefPtrWillBeMember<T> >(); | |
| 729 } | |
| 730 } | |
| 731 return result; | |
| 732 } | |
| 733 | |
| 734 template <class T, class V8T> | |
| 735 WillBeHeapVector<RefPtrWillBeMember<T> > toRefPtrWillBeMemberNativeArray(v8::Han
dle<v8::Value> value, const String& propertyName, v8::Isolate* isolate, bool* su
ccess = 0) | |
| 736 { | |
| 737 if (success) | |
| 738 *success = true; | |
| 739 | |
| 740 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 741 uint32_t length = 0; | |
| 742 if (value->IsArray()) { | |
| 743 length = v8::Local<v8::Array>::Cast(v8Value)->Length(); | |
| 744 } else if (toV8Sequence(value, length, isolate).IsEmpty()) { | |
| 745 throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName)
, isolate); | |
| 746 return WillBeHeapVector<RefPtrWillBeMember<T> >(); | |
| 747 } | |
| 748 | |
| 749 WillBeHeapVector<RefPtrWillBeMember<T> > result; | |
| 750 result.reserveInitialCapacity(length); | |
| 751 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value); | |
| 752 for (uint32_t i = 0; i < length; ++i) { | |
| 753 v8::Handle<v8::Value> element = object->Get(i); | |
| 754 if (V8T::hasInstance(element, isolate)) { | |
| 755 v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(
element); | |
| 756 result.uncheckedAppend(V8T::toNative(elementObject)); | |
| 757 } else { | |
| 758 if (success) | |
| 759 *success = false; | |
| 760 throwTypeError("Invalid Array element type", isolate); | |
| 761 return WillBeHeapVector<RefPtrWillBeMember<T> >(); | |
| 762 } | |
| 763 } | |
| 764 return result; | |
| 765 } | |
| 766 | |
| 767 template <class T, class V8T> | |
| 768 HeapVector<Member<T> > toMemberNativeArray(v8::Handle<v8::Value> value, int argu
mentIndex, v8::Isolate* isolate, bool* success = 0) | |
| 769 { | |
| 770 if (success) | |
| 771 *success = true; | |
| 772 | |
| 773 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 774 uint32_t length = 0; | |
| 775 if (value->IsArray()) { | |
| 776 length = v8::Local<v8::Array>::Cast(v8Value)->Length(); | |
| 777 } else if (toV8Sequence(value, length, isolate).IsEmpty()) { | |
| 778 throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argument
Index), isolate); | |
| 779 return HeapVector<Member<T> >(); | |
| 780 } | |
| 781 | |
| 782 HeapVector<Member<T> > result; | |
| 783 result.reserveInitialCapacity(length); | |
| 784 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value); | |
| 785 for (uint32_t i = 0; i < length; ++i) { | |
| 786 v8::Handle<v8::Value> element = object->Get(i); | |
| 787 if (V8T::hasInstance(element, isolate)) { | |
| 788 v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(
element); | |
| 789 result.uncheckedAppend(V8T::toNative(elementObject)); | |
| 790 } else { | |
| 791 if (success) | |
| 792 *success = false; | |
| 793 throwTypeError("Invalid Array element type", isolate); | |
| 794 return HeapVector<Member<T> >(); | |
| 795 } | |
| 796 } | |
| 797 return result; | |
| 798 } | |
| 799 | |
| 800 // Converts a JavaScript value to an array as per the Web IDL specification: | |
| 801 // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array | |
| 802 template <class T> | |
| 803 Vector<T> toNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isol
ate* isolate) | |
| 804 { | |
| 805 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 806 uint32_t length = 0; | |
| 807 if (value->IsArray()) { | |
| 808 length = v8::Local<v8::Array>::Cast(v8Value)->Length(); | |
| 809 } else if (toV8Sequence(value, length, isolate).IsEmpty()) { | |
| 810 throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argument
Index), isolate); | |
| 811 return Vector<T>(); | |
| 812 } | |
| 813 | |
| 814 Vector<T> result; | |
| 815 result.reserveInitialCapacity(length); | |
| 816 typedef NativeValueTraits<T> TraitsType; | |
| 817 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value); | |
| 818 for (uint32_t i = 0; i < length; ++i) | |
| 819 result.uncheckedAppend(TraitsType::nativeValue(object->Get(i), isolate))
; | |
| 820 return result; | |
| 821 } | |
| 822 | |
| 823 template <class T> | |
| 824 Vector<T> toNativeArguments(const v8::FunctionCallbackInfo<v8::Value>& info, int
startIndex) | |
| 825 { | |
| 826 ASSERT(startIndex <= info.Length()); | |
| 827 Vector<T> result; | |
| 828 typedef NativeValueTraits<T> TraitsType; | |
| 829 int length = info.Length(); | |
| 830 result.reserveInitialCapacity(length); | |
| 831 for (int i = startIndex; i < length; ++i) | |
| 832 result.uncheckedAppend(TraitsType::nativeValue(info[i], info.GetIsolate(
))); | |
| 833 return result; | |
| 834 } | |
| 835 | |
| 836 // Validates that the passed object is a sequence type per WebIDL spec | |
| 837 // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-sequence | |
| 838 inline v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value> value, uint32_t&
length, v8::Isolate* isolate) | |
| 839 { | |
| 840 // Attempt converting to a sequence if the value is not already an array but
is | |
| 841 // any kind of object except for a native Date object or a native RegExp obj
ect. | |
| 842 ASSERT(!value->IsArray()); | |
| 843 // FIXME: Do we really need to special case Date and RegExp object? | |
| 844 // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22806 | |
| 845 if (!value->IsObject() || value->IsDate() || value->IsRegExp()) { | |
| 846 // The caller is responsible for reporting a TypeError. | |
| 847 return v8Undefined(); | |
| 848 } | |
| 849 | |
| 850 v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value)); | |
| 851 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value); | |
| 852 v8::Local<v8::String> lengthSymbol = v8AtomicString(isolate, "length"); | |
| 853 | |
| 854 // FIXME: The specification states that the length property should be used a
s fallback, if value | |
| 855 // is not a platform object that supports indexed properties. If it supports
indexed properties, | |
| 856 // length should actually be one greater than value’s maximum indexed proper
ty index. | |
| 857 TONATIVE_EXCEPTION(v8::Local<v8::Value>, lengthValue, object->Get(lengthSymb
ol)); | |
| 858 | |
| 859 if (lengthValue->IsUndefined() || lengthValue->IsNull()) { | |
| 860 // The caller is responsible for reporting a TypeError. | |
| 861 return v8Undefined(); | |
| 862 } | |
| 863 | |
| 864 TONATIVE_EXCEPTION(uint32_t, sequenceLength, lengthValue->Int32Value()); | |
| 865 length = sequenceLength; | |
| 866 return v8Value; | |
| 867 } | |
| 868 | |
| 869 v8::Isolate* toIsolate(ExecutionContext*); | |
| 870 v8::Isolate* toIsolate(LocalFrame*); | |
| 871 | |
| 872 LocalDOMWindow* toDOMWindow(v8::Handle<v8::Value>, v8::Isolate*); | |
| 873 LocalDOMWindow* toDOMWindow(v8::Handle<v8::Context>); | |
| 874 LocalDOMWindow* enteredDOMWindow(v8::Isolate*); | |
| 875 LocalDOMWindow* currentDOMWindow(v8::Isolate*); | |
| 876 LocalDOMWindow* callingDOMWindow(v8::Isolate*); | |
| 877 ExecutionContext* toExecutionContext(v8::Handle<v8::Context>); | |
| 878 ExecutionContext* currentExecutionContext(v8::Isolate*); | |
| 879 ExecutionContext* callingExecutionContext(v8::Isolate*); | |
| 880 | |
| 881 // Returns a V8 context associated with a ExecutionContext and a DOMWrapperWorld
. | |
| 882 // This method returns an empty context if there is no frame or the frame is alr
eady detached. | |
| 883 v8::Local<v8::Context> toV8Context(ExecutionContext*, DOMWrapperWorld&); | |
| 884 // Returns a V8 context associated with a LocalFrame and a DOMWrapperWorld. | |
| 885 // This method returns an empty context if the frame is already detached. | |
| 886 v8::Local<v8::Context> toV8Context(LocalFrame*, DOMWrapperWorld&); | |
| 887 | |
| 888 // Returns the frame object of the window object associated with | |
| 889 // a context, if the window is currently being displayed in the LocalFrame. | |
| 890 LocalFrame* toFrameIfNotDetached(v8::Handle<v8::Context>); | |
| 891 | |
| 892 // If the current context causes out of memory, JavaScript setting | |
| 893 // is disabled and it returns true. | |
| 894 bool handleOutOfMemory(); | |
| 895 v8::Local<v8::Value> handleMaxRecursionDepthExceeded(v8::Isolate*); | |
| 896 void crashIfV8IsDead(); | |
| 897 | |
| 898 inline bool isUndefinedOrNull(v8::Handle<v8::Value> value) | |
| 899 { | |
| 900 return value->IsNull() || value->IsUndefined(); | |
| 901 } | |
| 902 v8::Handle<v8::Function> getBoundFunction(v8::Handle<v8::Function>); | |
| 903 | |
| 904 // Attaches |environment| to |function| and returns it. | |
| 905 inline v8::Local<v8::Function> createClosure(v8::FunctionCallback function, v8::
Handle<v8::Value> environment, v8::Isolate* isolate) | |
| 906 { | |
| 907 return v8::Function::New(isolate, function, environment); | |
| 908 } | |
| 909 | |
| 910 // FIXME: This will be soon embedded in the generated code. | |
| 911 template<class Collection> static void indexedPropertyEnumerator(const v8::Prope
rtyCallbackInfo<v8::Array>& info) | |
| 912 { | |
| 913 Collection* collection = reinterpret_cast<Collection*>(info.Holder()->GetAli
gnedPointerFromInternalField(v8DOMWrapperObjectIndex)); | |
| 914 int length = collection->length(); | |
| 915 v8::Handle<v8::Array> properties = v8::Array::New(info.GetIsolate(), length)
; | |
| 916 for (int i = 0; i < length; ++i) { | |
| 917 // FIXME: Do we need to check that the item function returns a non-null
value for this index? | |
| 918 v8::Handle<v8::Integer> integer = v8::Integer::New(info.GetIsolate(), i)
; | |
| 919 properties->Set(integer, integer); | |
| 920 } | |
| 921 v8SetReturnValue(info, properties); | |
| 922 } | |
| 923 | |
| 924 // These methods store hidden values into an array that is stored in the interna
l field of a DOM wrapper. | |
| 925 void addHiddenValueToArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cac
heIndex, v8::Isolate*); | |
| 926 void removeHiddenValueFromArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, in
t cacheIndex, v8::Isolate*); | |
| 927 void moveEventListenerToNewWrapper(v8::Handle<v8::Object>, EventListener* oldVal
ue, v8::Local<v8::Value> newValue, int cacheIndex, v8::Isolate*); | |
| 928 | |
| 929 PassRefPtr<JSONValue> v8ToJSONValue(v8::Isolate*, v8::Handle<v8::Value>, int); | |
| 930 | |
| 931 // Result values for platform object 'deleter' methods, | |
| 932 // http://www.w3.org/TR/WebIDL/#delete | |
| 933 enum DeleteResult { | |
| 934 DeleteSuccess, | |
| 935 DeleteReject, | |
| 936 DeleteUnknownProperty | |
| 937 }; | |
| 938 | |
| 939 class V8IsolateInterruptor : public ThreadState::Interruptor { | |
| 940 public: | |
| 941 explicit V8IsolateInterruptor(v8::Isolate* isolate) : m_isolate(isolate) { } | |
| 942 | |
| 943 static void onInterruptCallback(v8::Isolate* isolate, void* data) | |
| 944 { | |
| 945 reinterpret_cast<V8IsolateInterruptor*>(data)->onInterrupted(); | |
| 946 } | |
| 947 | |
| 948 virtual void requestInterrupt() OVERRIDE | |
| 949 { | |
| 950 m_isolate->RequestInterrupt(&onInterruptCallback, this); | |
| 951 } | |
| 952 | |
| 953 virtual void clearInterrupt() OVERRIDE | |
| 954 { | |
| 955 m_isolate->ClearInterrupt(); | |
| 956 } | |
| 957 | |
| 958 private: | |
| 959 v8::Isolate* m_isolate; | |
| 960 }; | |
| 961 | |
| 962 class V8TestingScope { | |
| 963 public: | |
| 964 explicit V8TestingScope(v8::Isolate*); | |
| 965 ScriptState* scriptState() const; | |
| 966 v8::Isolate* isolate() const; | |
| 967 ~V8TestingScope(); | |
| 968 | |
| 969 private: | |
| 970 v8::HandleScope m_handleScope; | |
| 971 v8::Context::Scope m_contextScope; | |
| 972 RefPtr<ScriptState> m_scriptState; | |
| 973 }; | |
| 974 | |
| 975 void GetDevToolsFunctionInfo(v8::Handle<v8::Function>, v8::Isolate*, int& script
Id, String& resourceName, int& lineNumber); | |
| 976 PassRefPtr<TraceEvent::ConvertableToTraceFormat> devToolsTraceEventData(Executio
nContext*, v8::Handle<v8::Function>, v8::Isolate*); | |
| 977 | |
| 978 class V8RethrowTryCatchScope FINAL { | |
| 979 public: | |
| 980 explicit V8RethrowTryCatchScope(v8::TryCatch& block) : m_block(block) { } | |
| 981 ~V8RethrowTryCatchScope() | |
| 982 { | |
| 983 // ReThrow() is a no-op if no exception has been caught, so always call. | |
| 984 m_block.ReThrow(); | |
| 985 } | |
| 986 | |
| 987 private: | |
| 988 v8::TryCatch& m_block; | |
| 989 }; | |
| 990 | |
| 991 class V8ResetTryCatchScope FINAL { | |
| 992 public: | |
| 993 explicit V8ResetTryCatchScope(v8::TryCatch& block) : m_block(block) { } | |
| 994 ~V8ResetTryCatchScope() | |
| 995 { | |
| 996 m_block.Reset(); | |
| 997 } | |
| 998 | |
| 999 private: | |
| 1000 v8::TryCatch& m_block; | |
| 1001 }; | |
| 1002 | |
| 1003 } // namespace WebCore | |
| 1004 | |
| 1005 #endif // V8Binding_h | |
| OLD | NEW |