| # 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; |
| |
| # 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 = 2; |
| const kApiConstructorOffset = 2; |
| 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; # 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; |
| const kMinDate = -100000000; |
| const kMaxDate = 100000000; |
| |
| # 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) = (typeof(arg) === 'undefined'); |
| macro IS_NUMBER(arg) = (typeof(arg) === 'number'); |
| macro IS_STRING(arg) = (typeof(arg) === 'string'); |
| macro IS_BOOLEAN(arg) = (typeof(arg) === 'boolean'); |
| 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_DATE(arg) = (%_ClassOf(arg) === 'Date'); |
| macro IS_NUMBER_WRAPPER(arg) = (%_ClassOf(arg) === 'Number'); |
| macro IS_STRING_WRAPPER(arg) = (%_ClassOf(arg) === 'String'); |
| 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_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'); |
| |
| # 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_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"); |
| |
| # 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 DATE_VALUE(arg) = (%_ClassOf(arg) === 'Date' ? %_ValueOf(arg) : ThrowDateTypeError()); |
| macro DAY(time) = ($floor(time / 86400000)); |
| macro NAN_OR_DATE_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : DateFromTime(time)); |
| macro HOUR_FROM_TIME(time) = (Modulo($floor(time / 3600000), 24)); |
| macro MIN_FROM_TIME(time) = (Modulo($floor(time / 60000), 60)); |
| macro NAN_OR_MIN_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : MIN_FROM_TIME(time)); |
| macro SEC_FROM_TIME(time) = (Modulo($floor(time / 1000), 60)); |
| macro NAN_OR_SEC_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : SEC_FROM_TIME(time)); |
| macro MS_FROM_TIME(time) = (Modulo(time, 1000)); |
| macro NAN_OR_MS_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : MS_FROM_TIME(time)); |
| |
| # Last input and last subject of regexp matches. |
| 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; |
| |
| # 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; |
