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Side by Side Diff: src/runtime/runtime-typedarray.cc

Issue 2814683002: [builtins] Implement %TypedArray%.prototype.map in the CSA (Closed)
Patch Set: added spec comments Created 3 years, 8 months ago
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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/arguments.h" 7 #include "src/arguments.h"
8 #include "src/elements.h" 8 #include "src/elements.h"
9 #include "src/factory.h" 9 #include "src/factory.h"
10 #include "src/messages.h" 10 #include "src/messages.h"
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170 170
171 } // namespace 171 } // namespace
172 172
173 RUNTIME_FUNCTION(Runtime_TypedArraySortFast) { 173 RUNTIME_FUNCTION(Runtime_TypedArraySortFast) {
174 HandleScope scope(isolate); 174 HandleScope scope(isolate);
175 DCHECK_EQ(1, args.length()); 175 DCHECK_EQ(1, args.length());
176 176
177 CONVERT_ARG_HANDLE_CHECKED(Object, target_obj, 0); 177 CONVERT_ARG_HANDLE_CHECKED(Object, target_obj, 0);
178 178
179 Handle<JSTypedArray> array; 179 Handle<JSTypedArray> array;
180 const char* method = "%TypedArray%.prototype.sort";
181 ASSIGN_RETURN_FAILURE_ON_EXCEPTION( 180 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
182 isolate, array, JSTypedArray::Validate(isolate, target_obj, method)); 181 isolate, array, JSTypedArray::Validate(isolate, target_obj));
183 182
184 // This line can be removed when JSTypedArray::Validate throws 183 // This line can be removed when JSTypedArray::Validate throws
185 // if array.[[ViewedArrayBuffer]] is neutered(v8:4648) 184 // if array.[[ViewedArrayBuffer]] is neutered(v8:4648)
186 if (V8_UNLIKELY(array->WasNeutered())) return *array; 185 if (V8_UNLIKELY(array->WasNeutered())) return *array;
187 186
188 size_t length = array->length_value(); 187 size_t length = array->length_value();
189 if (length <= 1) return *array; 188 if (length <= 1) return *array;
190 189
191 Handle<FixedTypedArrayBase> elements( 190 Handle<FixedTypedArrayBase> elements(
192 FixedTypedArrayBase::cast(array->elements())); 191 FixedTypedArrayBase::cast(array->elements()));
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253 DCHECK_EQ(1, args.length()); 252 DCHECK_EQ(1, args.length());
254 if (!args[0]->IsJSTypedArray()) { 253 if (!args[0]->IsJSTypedArray()) {
255 return isolate->heap()->false_value(); 254 return isolate->heap()->false_value();
256 } 255 }
257 256
258 Handle<JSTypedArray> obj(JSTypedArray::cast(args[0])); 257 Handle<JSTypedArray> obj(JSTypedArray::cast(args[0]));
259 return isolate->heap()->ToBoolean(obj->GetBuffer()->is_shared() && 258 return isolate->heap()->ToBoolean(obj->GetBuffer()->is_shared() &&
260 obj->type() == kExternalInt32Array); 259 obj->type() == kExternalInt32Array);
261 } 260 }
262 261
262 RUNTIME_FUNCTION(Runtime_TypedArraySpeciesCreateByLength) {
263 HandleScope scope(isolate);
264 DCHECK(args.length() == 2);
265 Handle<JSTypedArray> exemplar = args.at<JSTypedArray>(1);
266 Handle<Object> length = args.at(2);
267 int argc = 1;
268 ScopedVector<Handle<Object>> argv(argc);
269 argv[0] = length;
270 Handle<JSTypedArray> result_array;
271 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
272 isolate, result_array,
273 JSTypedArray::SpeciesCreate(isolate, exemplar, argc, argv.start()));
274 return *result_array;
275 }
276
263 } // namespace internal 277 } // namespace internal
264 } // namespace v8 278 } // namespace v8
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