CSE2410 Fall 2014 Bounce

# 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 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;

# For apinatives.js

const kUninitialized = -1;

# 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;

# Type query macros.

macro IS_NULL(arg)              = (arg === null);

macro IS_NULL_OR_UNDEFINED(arg) = (arg == null);

macro IS_UNDEFINED(arg)         = (typeof(arg) === 'undefined');

macro IS_FUNCTION(arg)          = (typeof(arg) === 'function');

macro IS_NUMBER(arg)            = (typeof(arg) === 'number');

macro IS_STRING(arg)            = (typeof(arg) === 'string');

macro IS_OBJECT(arg)            = (typeof(arg) === 'object');

macro IS_BOOLEAN(arg)           = (typeof(arg) === 'boolean');

macro IS_REGEXP(arg)            = %HasRegExpClass(arg);

macro IS_ARRAY(arg)             = %HasArrayClass(arg);

macro IS_DATE(arg)              = %HasDateClass(arg);

macro IS_ERROR(arg)             = (%ClassOf(arg) === 'Error');

macro IS_SCRIPT(arg)            = (%ClassOf(arg) === 'Script');

macro FLOOR(arg)                = %Math_floor(arg);

# 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 TO_INTEGER(arg)    = (%_IsSmi(%IS_VAR(arg)) ? arg : ToInteger(arg));

macro TO_INT32(arg)      = (%_IsSmi(%IS_VAR(arg)) ? arg : ToInt32(arg));

# Macros implemented in Python.

python macro CHAR_CODE(str) = ord(str[1]);

# Accessors for original global properties that ensure they have been loaded.

const ORIGINAL_REGEXP = (global.RegExp, $RegExp);

const ORIGINAL_DATE   = (global.Date, $Date);

# 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]);

# Last input and last subject are after the captures so we can omit them on

# results returned from global searches.  Beware - these evaluate their

# arguments twice.

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;