# 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; # 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_SET(arg) = (%_ClassOf(arg) === 'Set'); macro IS_MAP(arg) = (%_ClassOf(arg) === 'Map'); macro IS_WEAKMAP(arg) = (%_ClassOf(arg) === 'WeakMap'); 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'); # 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_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 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. 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;