| # Copyright 2006-2009 the V8 project authors. All rights reserved. |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following |
| # disclaimer in the documentation and/or other materials provided |
| # with the distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived |
| # from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| # Dictionary that is passed as defines for js2c.py. |
| # Used for defines that must be defined for all native JS files. |
| |
| const NONE = 0; |
| const READ_ONLY = 1; |
| const DONT_ENUM = 2; |
| const DONT_DELETE = 4; |
| const NEW_ONE_BYTE_STRING = true; |
| const NEW_TWO_BYTE_STRING = false; |
| |
| # Constants used for getter and setter operations. |
| const GETTER = 0; |
| const SETTER = 1; |
| |
| # These definitions must match the index of the properties in objects.h. |
| const kApiTagOffset = 0; |
| const kApiPropertyListOffset = 1; |
| const kApiSerialNumberOffset = 3; |
| const kApiConstructorOffset = 3; |
| const kApiPrototypeTemplateOffset = 5; |
| const kApiParentTemplateOffset = 6; |
| const kApiFlagOffset = 14; |
| |
| const NO_HINT = 0; |
| const NUMBER_HINT = 1; |
| const STRING_HINT = 2; |
| |
| const kFunctionTag = 0; |
| const kNewObjectTag = 1; |
| |
| # For date.js. |
| const HoursPerDay = 24; |
| const MinutesPerHour = 60; |
| const SecondsPerMinute = 60; |
| const msPerSecond = 1000; |
| const msPerMinute = 60000; |
| const msPerHour = 3600000; |
| const msPerDay = 86400000; |
| const msPerMonth = 2592000000; |
| |
| # For apinatives.js |
| const kUninitialized = -1; |
| const kReadOnlyPrototypeBit = 3; |
| const kRemovePrototypeBit = 4; # For FunctionTemplateInfo, matches objects.h |
| const kDoNotCacheBit = 5; # For FunctionTemplateInfo, matches objects.h |
| |
| # Note: kDayZeroInJulianDay = ToJulianDay(1970, 0, 1). |
| const kInvalidDate = 'Invalid Date'; |
| const kDayZeroInJulianDay = 2440588; |
| const kMonthMask = 0x1e0; |
| const kDayMask = 0x01f; |
| const kYearShift = 9; |
| const kMonthShift = 5; |
| |
| # Limits for parts of the date, so that we support all the dates that |
| # ECMA 262 - 15.9.1.1 requires us to, but at the same time be sure that |
| # the date (days since 1970) is in SMI range. |
| const kMinYear = -1000000; |
| const kMaxYear = 1000000; |
| const kMinMonth = -10000000; |
| const kMaxMonth = 10000000; |
| |
| # Strict mode flags for passing to %SetProperty |
| const kSloppyMode = 0; |
| const kStrictMode = 1; |
| |
| # Native cache ids. |
| const STRING_TO_REGEXP_CACHE_ID = 0; |
| |
| # Type query macros. |
| # |
| # Note: We have special support for typeof(foo) === 'bar' in the compiler. |
| # It will *not* generate a runtime typeof call for the most important |
| # values of 'bar'. |
| macro IS_NULL(arg) = (arg === null); |
| macro IS_NULL_OR_UNDEFINED(arg) = (arg == null); |
| macro IS_UNDEFINED(arg) = (arg === (void 0)); |
| macro IS_NUMBER(arg) = (typeof(arg) === 'number'); |
| macro IS_STRING(arg) = (typeof(arg) === 'string'); |
| macro IS_BOOLEAN(arg) = (typeof(arg) === 'boolean'); |
| macro IS_SYMBOL(arg) = (typeof(arg) === 'symbol'); |
| macro IS_OBJECT(arg) = (%_IsObject(arg)); |
| macro IS_ARRAY(arg) = (%_IsArray(arg)); |
| macro IS_FUNCTION(arg) = (%_IsFunction(arg)); |
| macro IS_REGEXP(arg) = (%_IsRegExp(arg)); |
| macro IS_SET(arg) = (%_ClassOf(arg) === 'Set'); |
| macro IS_MAP(arg) = (%_ClassOf(arg) === 'Map'); |
| macro IS_WEAKMAP(arg) = (%_ClassOf(arg) === 'WeakMap'); |
| macro IS_WEAKSET(arg) = (%_ClassOf(arg) === 'WeakSet'); |
| macro IS_DATE(arg) = (%_ClassOf(arg) === 'Date'); |
| macro IS_NUMBER_WRAPPER(arg) = (%_ClassOf(arg) === 'Number'); |
| macro IS_STRING_WRAPPER(arg) = (%_ClassOf(arg) === 'String'); |
| macro IS_SYMBOL_WRAPPER(arg) = (%_ClassOf(arg) === 'Symbol'); |
| macro IS_BOOLEAN_WRAPPER(arg) = (%_ClassOf(arg) === 'Boolean'); |
| macro IS_ERROR(arg) = (%_ClassOf(arg) === 'Error'); |
| macro IS_SCRIPT(arg) = (%_ClassOf(arg) === 'Script'); |
| macro IS_ARGUMENTS(arg) = (%_ClassOf(arg) === 'Arguments'); |
| macro IS_GLOBAL(arg) = (%_ClassOf(arg) === 'global'); |
| macro IS_ARRAYBUFFER(arg) = (%_ClassOf(arg) === 'ArrayBuffer'); |
| macro IS_DATAVIEW(arg) = (%_ClassOf(arg) === 'DataView'); |
| macro IS_GENERATOR(arg) = (%_ClassOf(arg) === 'Generator'); |
| macro IS_SET_ITERATOR(arg) = (%_ClassOf(arg) === 'Set Iterator'); |
| macro IS_MAP_ITERATOR(arg) = (%_ClassOf(arg) === 'Map Iterator'); |
| macro IS_UNDETECTABLE(arg) = (%_IsUndetectableObject(arg)); |
| macro FLOOR(arg) = $floor(arg); |
| |
| # Macro for ECMAScript 5 queries of the type: |
| # "Type(O) is object." |
| # This is the same as being either a function or an object in V8 terminology |
| # (including proxies). |
| # In addition, an undetectable object is also included by this. |
| macro IS_SPEC_OBJECT(arg) = (%_IsSpecObject(arg)); |
| |
| # Macro for ECMAScript 5 queries of the type: |
| # "IsCallable(O)" |
| # We assume here that this is the same as being either a function or a function |
| # proxy. That ignores host objects with [[Call]] methods, but in most situations |
| # we cannot handle those anyway. |
| macro IS_SPEC_FUNCTION(arg) = (%_ClassOf(arg) === 'Function'); |
| |
| # Macro for ES6 CheckObjectCoercible |
| # Will throw a TypeError of the form "[functionName] called on null or undefined". |
| macro CHECK_OBJECT_COERCIBLE(arg, functionName) = if (IS_NULL_OR_UNDEFINED(arg) && !IS_UNDETECTABLE(arg)) throw MakeTypeError('called_on_null_or_undefined', [functionName]); |
| |
| # Indices in bound function info retrieved by %BoundFunctionGetBindings(...). |
| const kBoundFunctionIndex = 0; |
| const kBoundThisIndex = 1; |
| const kBoundArgumentsStartIndex = 2; |
| |
| # Inline macros. Use %IS_VAR to make sure arg is evaluated only once. |
| macro NUMBER_IS_NAN(arg) = (!%_IsSmi(%IS_VAR(arg)) && !(arg == arg)); |
| macro NUMBER_IS_FINITE(arg) = (%_IsSmi(%IS_VAR(arg)) || ((arg == arg) && (arg != 1/0) && (arg != -1/0))); |
| macro TO_INTEGER(arg) = (%_IsSmi(%IS_VAR(arg)) ? arg : %NumberToInteger(ToNumber(arg))); |
| macro TO_INTEGER_FOR_SIDE_EFFECT(arg) = (%_IsSmi(%IS_VAR(arg)) ? arg : ToNumber(arg)); |
| macro TO_INTEGER_MAP_MINUS_ZERO(arg) = (%_IsSmi(%IS_VAR(arg)) ? arg : %NumberToIntegerMapMinusZero(ToNumber(arg))); |
| macro TO_INT32(arg) = (%_IsSmi(%IS_VAR(arg)) ? arg : (arg >> 0)); |
| macro TO_UINT32(arg) = (arg >>> 0); |
| macro TO_STRING_INLINE(arg) = (IS_STRING(%IS_VAR(arg)) ? arg : NonStringToString(arg)); |
| macro TO_NUMBER_INLINE(arg) = (IS_NUMBER(%IS_VAR(arg)) ? arg : NonNumberToNumber(arg)); |
| macro TO_OBJECT_INLINE(arg) = (IS_SPEC_OBJECT(%IS_VAR(arg)) ? arg : ToObject(arg)); |
| macro JSON_NUMBER_TO_STRING(arg) = ((%_IsSmi(%IS_VAR(arg)) || arg - arg == 0) ? %_NumberToString(arg) : "null"); |
| |
| # Private names. |
| # GET_PRIVATE should only be used if the property is known to exists on obj |
| # itself (it should really use %GetOwnProperty, but that would be way slower). |
| macro GLOBAL_PRIVATE(name) = (%CreateGlobalPrivateSymbol(name)); |
| macro NEW_PRIVATE(name) = (%CreatePrivateSymbol(name)); |
| macro IS_PRIVATE(sym) = (%SymbolIsPrivate(sym)); |
| macro HAS_PRIVATE(obj, sym) = (%HasOwnProperty(obj, sym)); |
| macro GET_PRIVATE(obj, sym) = (obj[sym]); |
| macro SET_PRIVATE(obj, sym, val) = (obj[sym] = val); |
| macro DELETE_PRIVATE(obj, sym) = (delete obj[sym]); |
| |
| # Constants. The compiler constant folds them. |
| const NAN = $NaN; |
| const INFINITY = (1/0); |
| const UNDEFINED = (void 0); |
| |
| # Macros implemented in Python. |
| python macro CHAR_CODE(str) = ord(str[1]); |
| |
| # Constants used on an array to implement the properties of the RegExp object. |
| const REGEXP_NUMBER_OF_CAPTURES = 0; |
| const REGEXP_FIRST_CAPTURE = 3; |
| |
| # We can't put macros in macros so we use constants here. |
| # REGEXP_NUMBER_OF_CAPTURES |
| macro NUMBER_OF_CAPTURES(array) = ((array)[0]); |
| |
| # Limit according to ECMA 262 15.9.1.1 |
| const MAX_TIME_MS = 8640000000000000; |
| # Limit which is MAX_TIME_MS + msPerMonth. |
| const MAX_TIME_BEFORE_UTC = 8640002592000000; |
| |
| # Gets the value of a Date object. If arg is not a Date object |
| # a type error is thrown. |
| macro CHECK_DATE(arg) = if (%_ClassOf(arg) !== 'Date') ThrowDateTypeError(); |
| macro LOCAL_DATE_VALUE(arg) = (%_DateField(arg, 0) + %_DateField(arg, 21)); |
| macro UTC_DATE_VALUE(arg) = (%_DateField(arg, 0)); |
| |
| macro LOCAL_YEAR(arg) = (%_DateField(arg, 1)); |
| macro LOCAL_MONTH(arg) = (%_DateField(arg, 2)); |
| macro LOCAL_DAY(arg) = (%_DateField(arg, 3)); |
| macro LOCAL_WEEKDAY(arg) = (%_DateField(arg, 4)); |
| macro LOCAL_HOUR(arg) = (%_DateField(arg, 5)); |
| macro LOCAL_MIN(arg) = (%_DateField(arg, 6)); |
| macro LOCAL_SEC(arg) = (%_DateField(arg, 7)); |
| macro LOCAL_MS(arg) = (%_DateField(arg, 8)); |
| macro LOCAL_DAYS(arg) = (%_DateField(arg, 9)); |
| macro LOCAL_TIME_IN_DAY(arg) = (%_DateField(arg, 10)); |
| |
| macro UTC_YEAR(arg) = (%_DateField(arg, 11)); |
| macro UTC_MONTH(arg) = (%_DateField(arg, 12)); |
| macro UTC_DAY(arg) = (%_DateField(arg, 13)); |
| macro UTC_WEEKDAY(arg) = (%_DateField(arg, 14)); |
| macro UTC_HOUR(arg) = (%_DateField(arg, 15)); |
| macro UTC_MIN(arg) = (%_DateField(arg, 16)); |
| macro UTC_SEC(arg) = (%_DateField(arg, 17)); |
| macro UTC_MS(arg) = (%_DateField(arg, 18)); |
| macro UTC_DAYS(arg) = (%_DateField(arg, 19)); |
| macro UTC_TIME_IN_DAY(arg) = (%_DateField(arg, 20)); |
| |
| macro TIMEZONE_OFFSET(arg) = (%_DateField(arg, 21)); |
| |
| macro SET_UTC_DATE_VALUE(arg, value) = (%DateSetValue(arg, value, 1)); |
| macro SET_LOCAL_DATE_VALUE(arg, value) = (%DateSetValue(arg, value, 0)); |
| |
| # Last input and last subject of regexp matches. |
| const LAST_SUBJECT_INDEX = 1; |
| macro LAST_SUBJECT(array) = ((array)[1]); |
| macro LAST_INPUT(array) = ((array)[2]); |
| |
| # REGEXP_FIRST_CAPTURE |
| macro CAPTURE(index) = (3 + (index)); |
| const CAPTURE0 = 3; |
| const CAPTURE1 = 4; |
| |
| # For the regexp capture override array. This has the same |
| # format as the arguments to a function called from |
| # String.prototype.replace. |
| macro OVERRIDE_MATCH(override) = ((override)[0]); |
| macro OVERRIDE_POS(override) = ((override)[(override).length - 2]); |
| macro OVERRIDE_SUBJECT(override) = ((override)[(override).length - 1]); |
| # 1-based so index of 1 returns the first capture |
| macro OVERRIDE_CAPTURE(override, index) = ((override)[(index)]); |
| |
| # PropertyDescriptor return value indices - must match |
| # PropertyDescriptorIndices in runtime.cc. |
| const IS_ACCESSOR_INDEX = 0; |
| const VALUE_INDEX = 1; |
| const GETTER_INDEX = 2; |
| const SETTER_INDEX = 3; |
| const WRITABLE_INDEX = 4; |
| const ENUMERABLE_INDEX = 5; |
| const CONFIGURABLE_INDEX = 6; |
| |
| # For messages.js |
| # Matches Script::Type from objects.h |
| const TYPE_NATIVE = 0; |
| const TYPE_EXTENSION = 1; |
| const TYPE_NORMAL = 2; |
| |
| # Matches Script::CompilationType from objects.h |
| const COMPILATION_TYPE_HOST = 0; |
| const COMPILATION_TYPE_EVAL = 1; |
| const COMPILATION_TYPE_JSON = 2; |
| |
| # Matches Messages::kNoLineNumberInfo from v8.h |
| const kNoLineNumberInfo = 0; |
| |
| # Matches PropertyAttributes from property-details.h |
| const PROPERTY_ATTRIBUTES_NONE = 0; |
| const PROPERTY_ATTRIBUTES_STRING = 8; |
| const PROPERTY_ATTRIBUTES_SYMBOLIC = 16; |
| const PROPERTY_ATTRIBUTES_PRIVATE_SYMBOL = 32; |
| |
| # Use for keys, values and entries iterators. |
| const ITERATOR_KIND_KEYS = 1; |
| const ITERATOR_KIND_VALUES = 2; |
| const ITERATOR_KIND_ENTRIES = 3; |