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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #include "src/runtime/runtime-utils.h" | 5 #include "src/runtime/runtime-utils.h" |
6 | 6 |
7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
8 #include "src/arguments.h" | 8 #include "src/arguments.h" |
9 #include "src/compiler.h" | 9 #include "src/compiler.h" |
10 #include "src/deoptimizer.h" | 10 #include "src/deoptimizer.h" |
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383 Handle<Object> val = Handle<Object>(frame->GetParameter(i), isolate); | 383 Handle<Object> val = Handle<Object>(frame->GetParameter(i), isolate); |
384 param_data[prefix_argc + i] = val; | 384 param_data[prefix_argc + i] = val; |
385 } | 385 } |
386 return param_data; | 386 return param_data; |
387 } | 387 } |
388 } | 388 } |
389 | 389 |
390 | 390 |
391 RUNTIME_FUNCTION(Runtime_FunctionBindArguments) { | 391 RUNTIME_FUNCTION(Runtime_FunctionBindArguments) { |
392 HandleScope scope(isolate); | 392 HandleScope scope(isolate); |
393 DCHECK(args.length() == 4); | 393 DCHECK(args.length() == 5); |
394 CONVERT_ARG_HANDLE_CHECKED(JSFunction, bound_function, 0); | 394 CONVERT_ARG_HANDLE_CHECKED(JSFunction, bound_function, 0); |
395 CONVERT_ARG_HANDLE_CHECKED(JSReceiver, bindee, 1); | 395 CONVERT_ARG_HANDLE_CHECKED(JSReceiver, bindee, 1); |
396 CONVERT_ARG_HANDLE_CHECKED(Object, this_object, 2); | 396 CONVERT_ARG_HANDLE_CHECKED(Object, this_object, 2); |
397 CONVERT_NUMBER_ARG_HANDLE_CHECKED(new_length, 3); | 397 CONVERT_NUMBER_ARG_HANDLE_CHECKED(new_length, 3); |
| 398 CONVERT_ARG_HANDLE_CHECKED(Object, proto, 4); |
398 | 399 |
399 // TODO(lrn): Create bound function in C++ code from premade shared info. | 400 // TODO(lrn): Create bound function in C++ code from premade shared info. |
400 bound_function->shared()->set_bound(true); | 401 bound_function->shared()->set_bound(true); |
401 bound_function->shared()->set_optimized_code_map( | 402 bound_function->shared()->set_optimized_code_map( |
402 isolate->heap()->cleared_optimized_code_map()); | 403 isolate->heap()->cleared_optimized_code_map()); |
403 bound_function->shared()->set_inferred_name(isolate->heap()->empty_string()); | 404 bound_function->shared()->set_inferred_name(isolate->heap()->empty_string()); |
404 bound_function->shared()->set_construct_stub( | 405 bound_function->shared()->set_construct_stub( |
405 *isolate->builtins()->JSBuiltinsConstructStub()); | 406 *isolate->builtins()->JSBuiltinsConstructStub()); |
406 // Get all arguments of calling function (Function.prototype.bind). | 407 // Get all arguments of calling function (Function.prototype.bind). |
407 int argc = 0; | 408 int argc = 0; |
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439 for (int j = 0; j < argc; j++, out_index++) { | 440 for (int j = 0; j < argc; j++, out_index++) { |
440 new_bindings->set_binding(out_index, *arguments[j + 1]); | 441 new_bindings->set_binding(out_index, *arguments[j + 1]); |
441 } | 442 } |
442 new_bindings->set_map_no_write_barrier(isolate->heap()->fixed_array_map()); | 443 new_bindings->set_map_no_write_barrier(isolate->heap()->fixed_array_map()); |
443 bound_function->set_function_bindings(*new_bindings); | 444 bound_function->set_function_bindings(*new_bindings); |
444 | 445 |
445 // Update length. Have to remove the prototype first so that map migration | 446 // Update length. Have to remove the prototype first so that map migration |
446 // is happy about the number of fields. | 447 // is happy about the number of fields. |
447 RUNTIME_ASSERT(bound_function->RemovePrototype()); | 448 RUNTIME_ASSERT(bound_function->RemovePrototype()); |
448 | 449 |
449 // The new function should have the same [[Prototype]] as the bindee. | 450 // The new function should have the given prototype. |
450 Handle<Map> bound_function_map = | 451 Handle<Map> bound_function_map = |
451 bindee->IsConstructor() | 452 bindee->IsConstructor() |
452 ? isolate->bound_function_with_constructor_map() | 453 ? isolate->bound_function_with_constructor_map() |
453 : isolate->bound_function_without_constructor_map(); | 454 : isolate->bound_function_without_constructor_map(); |
454 PrototypeIterator iter(isolate, bindee); | |
455 Handle<Object> proto = PrototypeIterator::GetCurrent(iter); | |
456 if (bound_function_map->prototype() != *proto) { | 455 if (bound_function_map->prototype() != *proto) { |
457 bound_function_map = Map::TransitionToPrototype(bound_function_map, proto, | 456 bound_function_map = Map::TransitionToPrototype(bound_function_map, proto, |
458 REGULAR_PROTOTYPE); | 457 REGULAR_PROTOTYPE); |
459 } | 458 } |
460 JSObject::MigrateToMap(bound_function, bound_function_map); | 459 JSObject::MigrateToMap(bound_function, bound_function_map); |
461 DCHECK_EQ(bindee->IsConstructor(), bound_function->IsConstructor()); | 460 DCHECK_EQ(bindee->IsConstructor(), bound_function->IsConstructor()); |
462 | 461 |
463 Handle<String> length_string = isolate->factory()->length_string(); | 462 Handle<String> length_string = isolate->factory()->length_string(); |
464 // These attributes must be kept in sync with how the bootstrapper | 463 // These attributes must be kept in sync with how the bootstrapper |
465 // configures the bound_function_map retrieved above. | 464 // configures the bound_function_map retrieved above. |
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615 | 614 |
616 RUNTIME_FUNCTION(Runtime_ThrowStrongModeTooFewArguments) { | 615 RUNTIME_FUNCTION(Runtime_ThrowStrongModeTooFewArguments) { |
617 HandleScope scope(isolate); | 616 HandleScope scope(isolate); |
618 DCHECK(args.length() == 0); | 617 DCHECK(args.length() == 0); |
619 THROW_NEW_ERROR_RETURN_FAILURE(isolate, | 618 THROW_NEW_ERROR_RETURN_FAILURE(isolate, |
620 NewTypeError(MessageTemplate::kStrongArity)); | 619 NewTypeError(MessageTemplate::kStrongArity)); |
621 } | 620 } |
622 | 621 |
623 } // namespace internal | 622 } // namespace internal |
624 } // namespace v8 | 623 } // namespace v8 |
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