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