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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/ast/scopeinfo.h" | 9 #include "src/ast/scopeinfo.h" |
10 #include "src/ast/scopes.h" | 10 #include "src/ast/scopes.h" |
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633 HandleScope scope(isolate); | 633 HandleScope scope(isolate); |
634 DCHECK_EQ(1, args.length()); | 634 DCHECK_EQ(1, args.length()); |
635 CONVERT_ARG_HANDLE_CHECKED(JSFunction, callee, 0) | 635 CONVERT_ARG_HANDLE_CHECKED(JSFunction, callee, 0) |
636 int start_index = callee->shared()->internal_formal_parameter_count(); | 636 int start_index = callee->shared()->internal_formal_parameter_count(); |
637 // This generic runtime function can also be used when the caller has been | 637 // This generic runtime function can also be used when the caller has been |
638 // inlined, we use the slow but accurate {GetCallerArguments}. | 638 // inlined, we use the slow but accurate {GetCallerArguments}. |
639 int argument_count = 0; | 639 int argument_count = 0; |
640 base::SmartArrayPointer<Handle<Object>> arguments = | 640 base::SmartArrayPointer<Handle<Object>> arguments = |
641 GetCallerArguments(isolate, &argument_count); | 641 GetCallerArguments(isolate, &argument_count); |
642 int num_elements = std::max(0, argument_count - start_index); | 642 int num_elements = std::max(0, argument_count - start_index); |
643 Handle<JSObject> result = isolate->factory()->NewJSArray( | 643 Handle<JSObject> result = |
644 FAST_ELEMENTS, num_elements, num_elements, Strength::WEAK, | 644 isolate->factory()->NewJSArray(FAST_ELEMENTS, num_elements, num_elements, |
645 DONT_INITIALIZE_ARRAY_ELEMENTS); | 645 DONT_INITIALIZE_ARRAY_ELEMENTS); |
646 { | 646 { |
647 DisallowHeapAllocation no_gc; | 647 DisallowHeapAllocation no_gc; |
648 FixedArray* elements = FixedArray::cast(result->elements()); | 648 FixedArray* elements = FixedArray::cast(result->elements()); |
649 WriteBarrierMode mode = result->GetWriteBarrierMode(no_gc); | 649 WriteBarrierMode mode = result->GetWriteBarrierMode(no_gc); |
650 for (int i = 0; i < num_elements; i++) { | 650 for (int i = 0; i < num_elements; i++) { |
651 elements->set(i, *arguments[i + start_index], mode); | 651 elements->set(i, *arguments[i + start_index], mode); |
652 } | 652 } |
653 } | 653 } |
654 return *result; | 654 return *result; |
655 } | 655 } |
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1132 DCHECK_EQ(2, args.length()); | 1132 DCHECK_EQ(2, args.length()); |
1133 CONVERT_ARG_HANDLE_CHECKED(String, name, 0); | 1133 CONVERT_ARG_HANDLE_CHECKED(String, name, 0); |
1134 CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); | 1134 CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); |
1135 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, | 1135 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, |
1136 StoreLookupSlot(name, value, STRICT)); | 1136 StoreLookupSlot(name, value, STRICT)); |
1137 return *value; | 1137 return *value; |
1138 } | 1138 } |
1139 | 1139 |
1140 } // namespace internal | 1140 } // namespace internal |
1141 } // namespace v8 | 1141 } // namespace v8 |
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