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Issue 947683002: Reimplement Maps and Sets in JS (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Disable one more test Created 5 years, 10 months ago
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1 # Copyright 2006-2009 the V8 project authors. All rights reserved. 1 # Copyright 2006-2009 the V8 project authors. All rights reserved.
2 # Redistribution and use in source and binary forms, with or without 2 # Redistribution and use in source and binary forms, with or without
3 # modification, are permitted provided that the following conditions are 3 # modification, are permitted provided that the following conditions are
4 # met: 4 # met:
5 # 5 #
6 # * Redistributions of source code must retain the above copyright 6 # * Redistributions of source code must retain the above copyright
7 # notice, this list of conditions and the following disclaimer. 7 # notice, this list of conditions and the following disclaimer.
8 # * Redistributions in binary form must reproduce the above 8 # * Redistributions in binary form must reproduce the above
9 # copyright notice, this list of conditions and the following 9 # copyright notice, this list of conditions and the following
10 # disclaimer in the documentation and/or other materials provided 10 # disclaimer in the documentation and/or other materials provided
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265 const PROPERTY_ATTRIBUTES_NONE = 0; 265 const PROPERTY_ATTRIBUTES_NONE = 0;
266 const PROPERTY_ATTRIBUTES_STRING = 8; 266 const PROPERTY_ATTRIBUTES_STRING = 8;
267 const PROPERTY_ATTRIBUTES_SYMBOLIC = 16; 267 const PROPERTY_ATTRIBUTES_SYMBOLIC = 16;
268 const PROPERTY_ATTRIBUTES_PRIVATE_SYMBOL = 32; 268 const PROPERTY_ATTRIBUTES_PRIVATE_SYMBOL = 32;
269 269
270 # Use for keys, values and entries iterators. 270 # Use for keys, values and entries iterators.
271 const ITERATOR_KIND_KEYS = 1; 271 const ITERATOR_KIND_KEYS = 1;
272 const ITERATOR_KIND_VALUES = 2; 272 const ITERATOR_KIND_VALUES = 2;
273 const ITERATOR_KIND_ENTRIES = 3; 273 const ITERATOR_KIND_ENTRIES = 3;
274 274
275 # Needs prefixing
276 const NUMBER_OF_BUCKETS_INDEX = 0;
277 const NUMBER_OF_ELEMENTS_INDEX = 1;
278 const NUMBER_OF_DELETED_ELEMENTS_INDEX = 2;
279 const HASH_TABLE_START_INDEX = 3;
280 const NOT_FOUND = -1;
281 # For sets
282 const SET_CHAIN_OFFSET = 1;
283 const MAP_CHAIN_OFFSET = 2;
284
285 macro SET_ENTRY_TO_INDEX(entry, numBuckets) = (3 + numBuckets + (entry << 1));
286 macro SET_KEY_AT(table, entry, numBuckets) = (%_FixedArrayGet(table, SET_ENTRY_T O_INDEX(entry, numBuckets)));
287 macro SET_CHAIN_AT(table, entry, numBuckets) = (%_FixedArrayGet(table, SET_ENTRY _TO_INDEX(entry, numBuckets) + 1));
288
289 # TODO(adamk): Need to make multiplications not create HeapNumbers
290 macro MAP_ENTRY_TO_INDEX(entry, numBuckets) = (3 + numBuckets + ((entry * 3) | 0 ));
291 macro MAP_KEY_AT(table, entry, numBuckets) = (%_FixedArrayGet(table, MAP_ENTRY_T O_INDEX(entry, numBuckets)));
292 macro MAP_VALUE_AT(table, entry, numBuckets) = (%_FixedArrayGet(table, MAP_ENTRY _TO_INDEX(entry, numBuckets) + 1));
293 macro MAP_CHAIN_AT(table, entry, numBuckets) = (%_FixedArrayGet(table, MAP_ENTRY _TO_INDEX(entry, numBuckets) + 2));
294
275 # Check whether debug is active. 295 # Check whether debug is active.
276 const DEBUG_IS_ACTIVE = (%_DebugIsActive() != 0); 296 const DEBUG_IS_ACTIVE = (%_DebugIsActive() != 0);
277 macro DEBUG_IS_STEPPING(function) = (%_DebugIsActive() != 0 && %DebugCallbackSup portsStepping(function)); 297 macro DEBUG_IS_STEPPING(function) = (%_DebugIsActive() != 0 && %DebugCallbackSup portsStepping(function));
278 macro DEBUG_PREPARE_STEP_IN_IF_STEPPING(function) = if (DEBUG_IS_STEPPING(functi on)) %DebugPrepareStepInIfStepping(function); 298 macro DEBUG_PREPARE_STEP_IN_IF_STEPPING(function) = if (DEBUG_IS_STEPPING(functi on)) %DebugPrepareStepInIfStepping(function);
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