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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/code_generator.h" | 5 #include "vm/code_generator.h" |
6 | 6 |
7 #include "vm/assembler.h" | 7 #include "vm/assembler.h" |
8 #include "vm/ast.h" | 8 #include "vm/ast.h" |
9 #include "vm/code_patcher.h" | 9 #include "vm/code_patcher.h" |
10 #include "vm/compiler.h" | 10 #include "vm/compiler.h" |
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106 // Return value: newly allocated array of length arg0. | 106 // Return value: newly allocated array of length arg0. |
107 DEFINE_RUNTIME_ENTRY(AllocateArray, 2) { | 107 DEFINE_RUNTIME_ENTRY(AllocateArray, 2) { |
108 const Instance& length = Instance::CheckedHandle(arguments.ArgAt(0)); | 108 const Instance& length = Instance::CheckedHandle(arguments.ArgAt(0)); |
109 if (!length.IsSmi()) { | 109 if (!length.IsSmi()) { |
110 const String& error = String::Handle(String::NewFormatted( | 110 const String& error = String::Handle(String::NewFormatted( |
111 "Length must be an integer in the range [0..%" Pd "].", | 111 "Length must be an integer in the range [0..%" Pd "].", |
112 Array::kMaxElements)); | 112 Array::kMaxElements)); |
113 Exceptions::ThrowArgumentError(error); | 113 Exceptions::ThrowArgumentError(error); |
114 } | 114 } |
115 const intptr_t len = Smi::Cast(length).Value(); | 115 const intptr_t len = Smi::Cast(length).Value(); |
116 if (len < 0) { | 116 if ((len < 0) || (len > Array::kMaxElements)) { |
117 const String& error = String::Handle(String::NewFormatted( | 117 const String& error = String::Handle(String::NewFormatted( |
118 "Length (%" Pd ") must be an integer in the range [0..%" Pd "].", | 118 "Length (%" Pd ") must be an integer in the range [0..%" Pd "].", |
119 len, Array::kMaxElements)); | 119 len, Array::kMaxElements)); |
120 Exceptions::ThrowArgumentError(error); | 120 Exceptions::ThrowArgumentError(error); |
121 } | 121 } |
122 | 122 |
123 Heap::Space space = isolate->heap()->SpaceForAllocation(kArrayCid); | 123 Heap::Space space = isolate->heap()->SpaceForAllocation(kArrayCid); |
124 const Array& array = Array::Handle(Array::New(len, space)); | 124 const Array& array = Array::Handle(Array::New(len, space)); |
125 arguments.SetReturn(array); | 125 arguments.SetReturn(array); |
126 TypeArguments& element_type = | 126 TypeArguments& element_type = |
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1677 const intptr_t elm_size = old_data.ElementSizeInBytes(); | 1677 const intptr_t elm_size = old_data.ElementSizeInBytes(); |
1678 const TypedData& new_data = | 1678 const TypedData& new_data = |
1679 TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld)); | 1679 TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld)); |
1680 TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size); | 1680 TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size); |
1681 typed_data_cell.SetAt(0, new_data); | 1681 typed_data_cell.SetAt(0, new_data); |
1682 arguments.SetReturn(new_data); | 1682 arguments.SetReturn(new_data); |
1683 } | 1683 } |
1684 | 1684 |
1685 | 1685 |
1686 } // namespace dart | 1686 } // namespace dart |
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