1 # Copyright 2006-2009 the V8 project authors. All rights reserved. 2 # Redistribution and use in source and binary forms, with or without 3 # modification, are permitted provided that the following conditions are 4 # met: 5 # 6 # * Redistributions of source code must retain the above copyright 7 # notice, this list of conditions and the following disclaimer. 8 # * Redistributions in binary form must reproduce the above 9 # copyright notice, this list of conditions and the following 10 # disclaimer in the documentation and/or other materials provided 11 # with the distribution. 12 # * Neither the name of Google Inc. nor the names of its 13 # contributors may be used to endorse or promote products derived 14 # from this software without specific prior written permission. 15 # 16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 # Dictionary that is passed as defines for js2c.py. 29 # Used for defines that must be defined for all native JS files. 30 31 define NONE = 0; 32 define READ_ONLY = 1; 33 define DONT_ENUM = 2; 34 define DONT_DELETE = 4; 35 define NEW_ONE_BYTE_STRING = true; 36 define NEW_TWO_BYTE_STRING = false; 37 38 # Constants used for getter and setter operations. 39 define GETTER = 0; 40 define SETTER = 1; 41 42 # Safe maximum number of arguments to push to stack, when multiplied by 43 # pointer size. Used by Function.prototype.apply(), Reflect.apply() and 44 # Reflect.construct(). 45 define kSafeArgumentsLength = 0x800000; 46 47 # 2^53 - 1 48 define kMaxSafeInteger = 9007199254740991; 49 50 # 2^32 - 1 51 define kMaxUint32 = 4294967295; 52 53 # Strict mode flags for passing to %SetProperty 54 define kSloppyMode = 0; 55 define kStrictMode = 1; 56 57 # Native cache ids. 58 define STRING_TO_REGEXP_CACHE_ID = 0; 59 60 # Type query macros. 61 # 62 # Note: We have special support for typeof(foo) === 'bar' in the compiler. 63 # It will *not* generate a runtime typeof call for the most important 64 # values of 'bar'. 65 macro IS_ARRAY(arg) = (%_IsArray(arg)); 66 macro IS_ARRAYBUFFER(arg) = (%_ClassOf(arg) === 'ArrayBuffer'); 67 macro IS_BOOLEAN(arg) = (typeof(arg) === 'boolean'); 68 macro IS_BOOLEAN_WRAPPER(arg) = (%_ClassOf(arg) === 'Boolean'); 69 macro IS_DATAVIEW(arg) = (%_ClassOf(arg) === 'DataView'); 70 macro IS_DATE(arg) = (%IsDate(arg)); 71 macro IS_ERROR(arg) = (%_ClassOf(arg) === 'Error'); 72 macro IS_FUNCTION(arg) = (%IsFunction(arg)); 73 macro IS_GENERATOR(arg) = (%_ClassOf(arg) === 'Generator'); 74 macro IS_GLOBAL(arg) = (%_ClassOf(arg) === 'global'); 75 macro IS_MAP(arg) = (%_ClassOf(arg) === 'Map'); 76 macro IS_MAP_ITERATOR(arg) = (%_ClassOf(arg) === 'Map Iterator'); 77 macro IS_NULL(arg) = (arg === null); 78 macro IS_NULL_OR_UNDEFINED(arg) = (arg == null); 79 macro IS_NUMBER(arg) = (typeof(arg) === 'number'); 80 macro IS_NUMBER_WRAPPER(arg) = (%_ClassOf(arg) === 'Number'); 81 macro IS_OBJECT(arg) = (typeof(arg) === 'object'); 82 macro IS_PROXY(arg) = (%_IsJSProxy(arg)); 83 macro IS_REGEXP(arg) = (%_IsRegExp(arg)); 84 macro IS_SCRIPT(arg) = (%_ClassOf(arg) === 'Script'); 85 macro IS_SET(arg) = (%_ClassOf(arg) === 'Set'); 86 macro IS_SET_ITERATOR(arg) = (%_ClassOf(arg) === 'Set Iterator'); 87 macro IS_SHAREDARRAYBUFFER(arg) = (%_ClassOf(arg) === 'SharedArrayBuffer'); 88 macro IS_SIMD_VALUE(arg) = (%IsSimdValue(arg)); 89 macro IS_STRING(arg) = (typeof(arg) === 'string'); 90 macro IS_STRING_WRAPPER(arg) = (%_ClassOf(arg) === 'String'); 91 macro IS_SYMBOL(arg) = (typeof(arg) === 'symbol'); 92 macro IS_SYMBOL_WRAPPER(arg) = (%_ClassOf(arg) === 'Symbol'); 93 macro IS_TYPEDARRAY(arg) = (%_IsTypedArray(arg)); 94 macro IS_UNDEFINED(arg) = (arg === (void 0)); 95 macro IS_WEAKMAP(arg) = (%_ClassOf(arg) === 'WeakMap'); 96 macro IS_WEAKSET(arg) = (%_ClassOf(arg) === 'WeakSet'); 97 98 # Macro for ES queries of the type: "Type(O) is Object." 99 macro IS_RECEIVER(arg) = (%_IsJSReceiver(arg)); 100 101 # Macro for ES queries of the type: "IsCallable(O)" 102 macro IS_CALLABLE(arg) = (typeof(arg) === 'function'); 103 104 # Macro for ES6 CheckObjectCoercible 105 # Will throw a TypeError of the form "[functionName] called on null or undefined". 106 macro CHECK_OBJECT_COERCIBLE(arg, functionName) = if (IS_NULL(%IS_VAR(arg)) || IS_UNDEFINED(arg)) throw MakeTypeError(kCalledOnNullOrUndefined, functionName); 107 108 # Inline macros. Use %IS_VAR to make sure arg is evaluated only once. 109 macro NUMBER_IS_NAN(arg) = (!%_IsSmi(%IS_VAR(arg)) && !(arg == arg)); 110 macro NUMBER_IS_FINITE(arg) = (%_IsSmi(%IS_VAR(arg)) || ((arg == arg) && (arg != 1/0) && (arg != -1/0))); 111 macro TO_BOOLEAN(arg) = (!!(arg)); 112 macro TO_INTEGER(arg) = (%_ToInteger(arg)); 113 macro TO_INT32(arg) = ((arg) | 0); 114 macro TO_UINT32(arg) = ((arg) >>> 0); 115 macro INVERT_NEG_ZERO(arg) = ((arg) + 0); 116 macro TO_LENGTH(arg) = (%_ToLength(arg)); 117 macro TO_STRING(arg) = (%_ToString(arg)); 118 macro TO_NUMBER(arg) = (%_ToNumber(arg)); 119 macro TO_OBJECT(arg) = (%_ToObject(arg)); 120 macro TO_PRIMITIVE(arg) = (%_ToPrimitive(arg)); 121 macro TO_PRIMITIVE_NUMBER(arg) = (%_ToPrimitive_Number(arg)); 122 macro TO_PRIMITIVE_STRING(arg) = (%_ToPrimitive_String(arg)); 123 macro TO_NAME(arg) = (%_ToName(arg)); 124 macro JSON_NUMBER_TO_STRING(arg) = ((%_IsSmi(%IS_VAR(arg)) || arg - arg == 0) ? %_NumberToString(arg) : "null"); 125 macro HAS_OWN_PROPERTY(obj, key) = (%_Call(ObjectHasOwnProperty, obj, key)); 126 127 # Private names. 128 macro IS_PRIVATE(sym) = (%SymbolIsPrivate(sym)); 129 macro HAS_PRIVATE(obj, key) = HAS_OWN_PROPERTY(obj, key); 130 macro HAS_DEFINED_PRIVATE(obj, sym) = (!IS_UNDEFINED(obj[sym])); 131 macro GET_PRIVATE(obj, sym) = (obj[sym]); 132 macro SET_PRIVATE(obj, sym, val) = (obj[sym] = val); 133 134 # Constants. The compiler constant folds them. 135 define INFINITY = (1/0); 136 define UNDEFINED = (void 0); 137 138 # Macros implemented in Python. 139 python macro CHAR_CODE(str) = ord(str[1]); 140 141 # Constants used on an array to implement the properties of the RegExp object. 142 define REGEXP_NUMBER_OF_CAPTURES = 0; 143 define REGEXP_FIRST_CAPTURE = 3; 144 145 # Macros for internal slot access. 146 macro REGEXP_GLOBAL(regexp) = (%_RegExpFlags(regexp) & 1); 147 macro REGEXP_IGNORE_CASE(regexp) = (%_RegExpFlags(regexp) & 2); 148 macro REGEXP_MULTILINE(regexp) = (%_RegExpFlags(regexp) & 4); 149 macro REGEXP_STICKY(regexp) = (%_RegExpFlags(regexp) & 8); 150 macro REGEXP_UNICODE(regexp) = (%_RegExpFlags(regexp) & 16); 151 macro REGEXP_SOURCE(regexp) = (%_RegExpSource(regexp)); 152 153 # We can't put macros in macros so we use constants here. 154 # REGEXP_NUMBER_OF_CAPTURES 155 macro NUMBER_OF_CAPTURES(array) = ((array)[0]); 156 157 # Last input and last subject of regexp matches. 158 define LAST_SUBJECT_INDEX = 1; 159 macro LAST_SUBJECT(array) = ((array)[1]); 160 macro LAST_INPUT(array) = ((array)[2]); 161 162 # REGEXP_FIRST_CAPTURE 163 macro CAPTURE(index) = (3 + (index)); 164 define CAPTURE0 = 3; 165 define CAPTURE1 = 4; 166 167 # For the regexp capture override array. This has the same 168 # format as the arguments to a function called from 169 # String.prototype.replace. 170 macro OVERRIDE_MATCH(override) = ((override)[0]); 171 macro OVERRIDE_POS(override) = ((override)[(override).length - 2]); 172 macro OVERRIDE_SUBJECT(override) = ((override)[(override).length - 1]); 173 # 1-based so index of 1 returns the first capture 174 macro OVERRIDE_CAPTURE(override, index) = ((override)[(index)]); 175 176 # For messages.js 177 # Matches Script::Type from objects.h 178 define TYPE_NATIVE = 0; 179 define TYPE_EXTENSION = 1; 180 define TYPE_NORMAL = 2; 181 182 # Matches Script::CompilationType from objects.h 183 define COMPILATION_TYPE_HOST = 0; 184 define COMPILATION_TYPE_EVAL = 1; 185 define COMPILATION_TYPE_JSON = 2; 186 187 # Matches Messages::kNoLineNumberInfo from v8.h 188 define kNoLineNumberInfo = 0; 189 190 # Must match PropertyFilter in property-details.h 191 define PROPERTY_FILTER_NONE = 0; 192 define PROPERTY_FILTER_ONLY_ENUMERABLE = 2; 193 define PROPERTY_FILTER_SKIP_STRINGS = 8; 194 define PROPERTY_FILTER_SKIP_SYMBOLS = 16; 195 196 # Use for keys, values and entries iterators. 197 define ITERATOR_KIND_KEYS = 1; 198 define ITERATOR_KIND_VALUES = 2; 199 define ITERATOR_KIND_ENTRIES = 3; 200 201 macro FIXED_ARRAY_GET(array, index) = (%_FixedArrayGet(array, (index) | 0)); 202 macro FIXED_ARRAY_SET(array, index, value) = (%_FixedArraySet(array, (index) | 0, value)); 203 # TODO(adamk): Find a more robust way to force Smi representation. 204 macro FIXED_ARRAY_SET_SMI(array, index, value) = (FIXED_ARRAY_SET(array, index, (value) | 0)); 205 206 macro ORDERED_HASH_TABLE_BUCKET_COUNT(table) = (FIXED_ARRAY_GET(table, 0)); 207 macro ORDERED_HASH_TABLE_ELEMENT_COUNT(table) = (FIXED_ARRAY_GET(table, 1)); 208 macro ORDERED_HASH_TABLE_SET_ELEMENT_COUNT(table, count) = (FIXED_ARRAY_SET_SMI(table, 1, count)); 209 macro ORDERED_HASH_TABLE_DELETED_COUNT(table) = (FIXED_ARRAY_GET(table, 2)); 210 macro ORDERED_HASH_TABLE_SET_DELETED_COUNT(table, count) = (FIXED_ARRAY_SET_SMI(table, 2, count)); 211 macro ORDERED_HASH_TABLE_BUCKET_AT(table, bucket) = (FIXED_ARRAY_GET(table, 3 + (bucket))); 212 macro ORDERED_HASH_TABLE_SET_BUCKET_AT(table, bucket, entry) = (FIXED_ARRAY_SET(table, 3 + (bucket), entry)); 213 214 macro ORDERED_HASH_TABLE_HASH_TO_BUCKET(hash, numBuckets) = (hash & ((numBuckets) - 1)); 215 216 macro ORDERED_HASH_SET_ENTRY_TO_INDEX(entry, numBuckets) = (3 + (numBuckets) + ((entry) << 1)); 217 macro ORDERED_HASH_SET_KEY_AT(table, entry, numBuckets) = (FIXED_ARRAY_GET(table, ORDERED_HASH_SET_ENTRY_TO_INDEX(entry, numBuckets))); 218 macro ORDERED_HASH_SET_CHAIN_AT(table, entry, numBuckets) = (FIXED_ARRAY_GET(table, ORDERED_HASH_SET_ENTRY_TO_INDEX(entry, numBuckets) + 1)); 219 220 macro ORDERED_HASH_MAP_ENTRY_TO_INDEX(entry, numBuckets) = (3 + (numBuckets) + ((entry) * 3)); 221 macro ORDERED_HASH_MAP_KEY_AT(table, entry, numBuckets) = (FIXED_ARRAY_GET(table, ORDERED_HASH_MAP_ENTRY_TO_INDEX(entry, numBuckets))); 222 macro ORDERED_HASH_MAP_VALUE_AT(table, entry, numBuckets) = (FIXED_ARRAY_GET(table, ORDERED_HASH_MAP_ENTRY_TO_INDEX(entry, numBuckets) + 1)); 223 macro ORDERED_HASH_MAP_CHAIN_AT(table, entry, numBuckets) = (FIXED_ARRAY_GET(table, ORDERED_HASH_MAP_ENTRY_TO_INDEX(entry, numBuckets) + 2)); 224 225 # Must match OrderedHashTable::kNotFound. 226 define NOT_FOUND = -1; 227 228 # Check whether debug is active. 229 define DEBUG_IS_ACTIVE = (%_DebugIsActive() != 0); 230 231 # SharedFlag equivalents 232 define kNotShared = false; 233 define kShared = true; 234 235 # UseCounters from include/v8.h 236 define kUseAsm = 0; 237 define kBreakIterator = 1; 238 define kLegacyConst = 2; 239 define kMarkDequeOverflow = 3; 240 define kStoreBufferOverflow = 4; 241 define kSlotsBufferOverflow = 5; 242 define kForcedGC = 7; 243 define kSloppyMode = 8; 244 define kStrictMode = 9; 245 define kRegExpPrototypeStickyGetter = 11; 246 define kRegExpPrototypeToString = 12; 247 define kRegExpPrototypeUnicodeGetter = 13; 248 define kIntlV8Parse = 14; 249 define kIntlPattern = 15; 250 define kIntlResolved = 16; 251 define kPromiseChain = 17; 252 define kPromiseAccept = 18; 253 define kPromiseDefer = 19; 254 define kHtmlCommentInExternalScript = 20; 255 define kHtmlComment = 21; 256 define kSloppyModeBlockScopedFunctionRedefinition = 22; 257 define kForInInitializer = 23; 258 define kArrayProtectorDirtied = 24; 259 define kArraySpeciesModified = 25; 260 define kArrayPrototypeConstructorModified = 26; 261 define kArrayInstanceProtoModified = 27; 262 define kArrayInstanceConstructorModified = 28; 263 define kLegacyFunctionDeclaration = 29; 264 define kRegExpPrototypeSourceGetter = 30; 265 define kRegExpPrototypeOldFlagGetter = 31; 266
