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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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387 | 387 |
388 RETURN_IF_SCHEDULED_EXCEPTION(); | 388 RETURN_IF_SCHEDULED_EXCEPTION(); |
389 if (!is_construct || result->IsJSObject()) return result; | 389 if (!is_construct || result->IsJSObject()) return result; |
390 } | 390 } |
391 | 391 |
392 return *receiver; | 392 return *receiver; |
393 } | 393 } |
394 BUILTIN_END | 394 BUILTIN_END |
395 | 395 |
396 | 396 |
397 // Handle calls to non-function objects created through the API that | 397 // Helper function to handle calls to non-function objects created through the |
398 // support calls. | 398 // API. The object can be called as either a constructor (using new) or just as |
399 BUILTIN(HandleApiCallAsFunction) { | 399 // a function (without new). |
400 // Non-functions are never called as constructors. | 400 static Object* HandleApiCallAsFunctionOrConstructor(bool is_construct_call, |
| 401 int __argc__, |
| 402 Object** __argv__) { |
| 403 // Non-functions are never called as constructors. Even if this is an object |
| 404 // called as a constructor the delegate call is not a construct call. |
401 ASSERT(!CalledAsConstructor()); | 405 ASSERT(!CalledAsConstructor()); |
402 | 406 |
| 407 Handle<Object> receiver(&__argv__[0]); |
| 408 |
403 // Get the object called. | 409 // Get the object called. |
404 JSObject* obj = JSObject::cast(*receiver); | 410 JSObject* obj = JSObject::cast(*receiver); |
405 | 411 |
406 // Get the invocation callback from the function descriptor that was | 412 // Get the invocation callback from the function descriptor that was |
407 // used to create the called object. | 413 // used to create the called object. |
408 ASSERT(obj->map()->has_instance_call_handler()); | 414 ASSERT(obj->map()->has_instance_call_handler()); |
409 JSFunction* constructor = JSFunction::cast(obj->map()->constructor()); | 415 JSFunction* constructor = JSFunction::cast(obj->map()->constructor()); |
410 Object* template_info = constructor->shared()->function_data(); | 416 Object* template_info = constructor->shared()->function_data(); |
411 Object* handler = | 417 Object* handler = |
412 FunctionTemplateInfo::cast(template_info)->instance_call_handler(); | 418 FunctionTemplateInfo::cast(template_info)->instance_call_handler(); |
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424 v8::Utils::ToLocal(Handle<JSObject>::cast(receiver)); | 430 v8::Utils::ToLocal(Handle<JSObject>::cast(receiver)); |
425 Handle<Object> data_handle(data_obj); | 431 Handle<Object> data_handle(data_obj); |
426 v8::Local<v8::Value> data = v8::Utils::ToLocal(data_handle); | 432 v8::Local<v8::Value> data = v8::Utils::ToLocal(data_handle); |
427 Handle<JSFunction> callee_handle(constructor); | 433 Handle<JSFunction> callee_handle(constructor); |
428 v8::Local<v8::Function> callee = v8::Utils::ToLocal(callee_handle); | 434 v8::Local<v8::Function> callee = v8::Utils::ToLocal(callee_handle); |
429 LOG(ApiObjectAccess("call non-function", JSObject::cast(*receiver))); | 435 LOG(ApiObjectAccess("call non-function", JSObject::cast(*receiver))); |
430 v8::Arguments args = v8::ImplementationUtilities::NewArguments( | 436 v8::Arguments args = v8::ImplementationUtilities::NewArguments( |
431 data, | 437 data, |
432 self, | 438 self, |
433 callee, | 439 callee, |
434 false, | 440 is_construct_call, |
435 reinterpret_cast<void**>(__argv__ - 1), | 441 reinterpret_cast<void**>(__argv__ - 1), |
436 __argc__ - 1); | 442 __argc__ - 1); |
437 v8::Handle<v8::Value> value; | 443 v8::Handle<v8::Value> value; |
438 { | 444 { |
439 // Leaving JavaScript. | 445 // Leaving JavaScript. |
440 VMState state(EXTERNAL); | 446 VMState state(EXTERNAL); |
441 value = callback(args); | 447 value = callback(args); |
442 } | 448 } |
443 if (value.IsEmpty()) { | 449 if (value.IsEmpty()) { |
444 result = Heap::undefined_value(); | 450 result = Heap::undefined_value(); |
445 } else { | 451 } else { |
446 result = *reinterpret_cast<Object**>(*value); | 452 result = *reinterpret_cast<Object**>(*value); |
447 } | 453 } |
448 } | 454 } |
449 // Check for exceptions and return result. | 455 // Check for exceptions and return result. |
450 RETURN_IF_SCHEDULED_EXCEPTION(); | 456 RETURN_IF_SCHEDULED_EXCEPTION(); |
451 return result; | 457 return result; |
452 } | 458 } |
| 459 |
| 460 |
| 461 // Handle calls to non-function objects created through the API. This delegate |
| 462 // function is used when the call is a normal function call. |
| 463 BUILTIN(HandleApiCallAsFunction) { |
| 464 return HandleApiCallAsFunctionOrConstructor(false, __argc__, __argv__); |
| 465 } |
| 466 BUILTIN_END |
| 467 |
| 468 |
| 469 // Handle calls to non-function objects created through the API. This delegate |
| 470 // function is used when the call is a construct call. |
| 471 BUILTIN(HandleApiCallAsConstructor) { |
| 472 return HandleApiCallAsFunctionOrConstructor(true, __argc__, __argv__); |
| 473 } |
453 BUILTIN_END | 474 BUILTIN_END |
454 | 475 |
455 | 476 |
456 // TODO(1238487): This is a nasty hack. We need to improve the way we | 477 // TODO(1238487): This is a nasty hack. We need to improve the way we |
457 // call builtins considerable to get rid of this and the hairy macros | 478 // call builtins considerable to get rid of this and the hairy macros |
458 // in builtins.cc. | 479 // in builtins.cc. |
459 Object* Builtins::builtin_passed_function; | 480 Object* Builtins::builtin_passed_function; |
460 | 481 |
461 | 482 |
462 | 483 |
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736 if (entry->contains(pc)) { | 757 if (entry->contains(pc)) { |
737 return names_[i]; | 758 return names_[i]; |
738 } | 759 } |
739 } | 760 } |
740 } | 761 } |
741 return NULL; | 762 return NULL; |
742 } | 763 } |
743 | 764 |
744 | 765 |
745 } } // namespace v8::internal | 766 } } // namespace v8::internal |
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