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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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/bootstrap_natives.h" | 5 #include "vm/bootstrap_natives.h" |
6 | 6 |
7 #include "vm/exceptions.h" | 7 #include "vm/exceptions.h" |
8 #include "vm/native_entry.h" | 8 #include "vm/native_entry.h" |
9 #include "vm/object.h" | 9 #include "vm/object.h" |
10 #include "vm/symbols.h" | 10 #include "vm/symbols.h" |
11 #include "vm/unicode.h" | 11 #include "vm/unicode.h" |
12 | 12 |
13 namespace dart { | 13 namespace dart { |
14 | 14 |
15 DEFINE_NATIVE_ENTRY(StringBase_createFromCodePoints, 1) { | 15 DEFINE_NATIVE_ENTRY(StringBase_createFromCodePoints, 1) { |
16 GET_NON_NULL_NATIVE_ARGUMENT(Array, a, arguments->NativeArgAt(0)); | 16 GET_NON_NULL_NATIVE_ARGUMENT(Array, a, arguments->NativeArgAt(0)); |
17 // TODO(srdjan): Check that parameterized type is an int. | 17 // TODO(srdjan): Check that parameterized type is an int. |
18 Zone* zone = isolate->current_zone(); | 18 Zone* zone = isolate->current_zone(); |
19 intptr_t array_len = a.Length(); | 19 intptr_t array_len = a.Length(); |
20 | 20 |
21 // Unbox the array and determine the maximum element width. | 21 // Unbox the array and determine the maximum element width. |
22 bool is_one_byte_string = true; | 22 bool is_one_byte_string = true; |
23 intptr_t utf16_len = array_len; | 23 intptr_t utf16_len = array_len; |
24 int32_t* utf32_array = zone->Alloc<int32_t>(array_len); | 24 int32_t* utf32_array = zone->Alloc<int32_t>(array_len); |
25 Object& index_object = Object::Handle(isolate); | 25 Object& index_object = Object::Handle(isolate); |
26 for (intptr_t i = 0; i < array_len; i++) { | 26 for (intptr_t i = 0; i < array_len; i++) { |
27 index_object = a.At(i); | 27 index_object = a.At(i); |
28 if (!index_object.IsSmi()) { | 28 if (!index_object.IsSmi()) { |
29 GrowableArray<const Object*> args; | 29 const Array& args = Array::Handle(Array::New(1)); |
30 args.Add(&index_object); | 30 args.SetAt(0, index_object); |
31 Exceptions::ThrowByType(Exceptions::kArgument, args); | 31 Exceptions::ThrowByType(Exceptions::kArgument, args); |
32 } | 32 } |
33 intptr_t value = Smi::Cast(index_object).Value(); | 33 intptr_t value = Smi::Cast(index_object).Value(); |
34 if (Utf::IsOutOfRange(value)) { | 34 if (Utf::IsOutOfRange(value)) { |
35 GrowableArray<const Object*> args; | 35 const Array& args = Array::Handle(Object::empty_array()); |
36 Exceptions::ThrowByType(Exceptions::kArgument, args); | 36 Exceptions::ThrowByType(Exceptions::kArgument, args); |
37 } else { | 37 } else { |
38 if (!Utf::IsLatin1(value)) { | 38 if (!Utf::IsLatin1(value)) { |
39 is_one_byte_string = false; | 39 is_one_byte_string = false; |
40 if (Utf::IsSupplementary(value)) { | 40 if (Utf::IsSupplementary(value)) { |
41 utf16_len += 1; | 41 utf16_len += 1; |
42 } | 42 } |
43 } | 43 } |
44 } | 44 } |
45 utf32_array[i] = value; | 45 utf32_array[i] = value; |
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121 return Smi::New(receiver.Length()); | 121 return Smi::New(receiver.Length()); |
122 } | 122 } |
123 | 123 |
124 | 124 |
125 static int32_t StringValueAt(const String& str, const Integer& index) { | 125 static int32_t StringValueAt(const String& str, const Integer& index) { |
126 if (index.IsSmi()) { | 126 if (index.IsSmi()) { |
127 Smi& smi = Smi::Handle(); | 127 Smi& smi = Smi::Handle(); |
128 smi ^= index.raw(); | 128 smi ^= index.raw(); |
129 int32_t index = smi.Value(); | 129 int32_t index = smi.Value(); |
130 if ((index < 0) || (index >= str.Length())) { | 130 if ((index < 0) || (index >= str.Length())) { |
131 GrowableArray<const Object*> arguments; | 131 const Array& args = Array::Handle(Array::New(1)); |
132 arguments.Add(&smi); | 132 args.SetAt(0, smi); |
133 Exceptions::ThrowByType(Exceptions::kRange, arguments); | 133 Exceptions::ThrowByType(Exceptions::kRange, args); |
134 } | 134 } |
135 return str.CharAt(index); | 135 return str.CharAt(index); |
136 } else { | 136 } else { |
137 // An index larger than Smi is always illegal. | 137 // An index larger than Smi is always illegal. |
138 GrowableArray<const Object*> arguments; | 138 const Array& args = Array::Handle(Array::New(1)); |
139 arguments.Add(&index); | 139 args.SetAt(0, index); |
140 Exceptions::ThrowByType(Exceptions::kRange, arguments); | 140 Exceptions::ThrowByType(Exceptions::kRange, args); |
141 return 0; | 141 return 0; |
142 } | 142 } |
143 } | 143 } |
144 | 144 |
145 | 145 |
146 DEFINE_NATIVE_ENTRY(String_charAt, 2) { | 146 DEFINE_NATIVE_ENTRY(String_charAt, 2) { |
147 const String& receiver = String::CheckedHandle(arguments->NativeArgAt(0)); | 147 const String& receiver = String::CheckedHandle(arguments->NativeArgAt(0)); |
148 GET_NON_NULL_NATIVE_ARGUMENT(Integer, index, arguments->NativeArgAt(1)); | 148 GET_NON_NULL_NATIVE_ARGUMENT(Integer, index, arguments->NativeArgAt(1)); |
149 uint32_t value = StringValueAt(receiver, index); | 149 uint32_t value = StringValueAt(receiver, index); |
150 ASSERT(value <= 0x10FFFF); | 150 ASSERT(value <= 0x10FFFF); |
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184 | 184 |
185 | 185 |
186 DEFINE_NATIVE_ENTRY(Strings_concatAll, 1) { | 186 DEFINE_NATIVE_ENTRY(Strings_concatAll, 1) { |
187 GET_NON_NULL_NATIVE_ARGUMENT(Array, strings, arguments->NativeArgAt(0)); | 187 GET_NON_NULL_NATIVE_ARGUMENT(Array, strings, arguments->NativeArgAt(0)); |
188 ASSERT(!strings.IsNull()); | 188 ASSERT(!strings.IsNull()); |
189 // Check that the array contains strings. | 189 // Check that the array contains strings. |
190 Instance& elem = Instance::Handle(); | 190 Instance& elem = Instance::Handle(); |
191 for (intptr_t i = 0; i < strings.Length(); i++) { | 191 for (intptr_t i = 0; i < strings.Length(); i++) { |
192 elem ^= strings.At(i); | 192 elem ^= strings.At(i); |
193 if (!elem.IsString()) { | 193 if (!elem.IsString()) { |
194 GrowableArray<const Object*> args; | 194 const Array& args = Array::Handle(Array::New(1)); |
195 args.Add(&elem); | 195 args.SetAt(0, elem); |
196 Exceptions::ThrowByType(Exceptions::kArgument, args); | 196 Exceptions::ThrowByType(Exceptions::kArgument, args); |
197 } | 197 } |
198 } | 198 } |
199 return String::ConcatAll(strings); | 199 return String::ConcatAll(strings); |
200 } | 200 } |
201 | 201 |
202 } // namespace dart | 202 } // namespace dart |
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