Revert of [builtins] Refactor the remaining Date builtins.

src/js/macros.py

Index: src/js/macros.py
diff --git a/src/js/macros.py b/src/js/macros.py
index 3bcc8c114e422627199ba65d3a0d798a74a355f0..e180860a2bb3f1c4cdeaad8faa7e8e0a7e926d0c 100644
--- a/src/js/macros.py
+++ b/src/js/macros.py
@@ -38,6 +38,32 @@
 # Constants used for getter and setter operations.
 define GETTER = 0;
 define SETTER = 1;
+
+# For date.js.
+define HoursPerDay      = 24;
+define MinutesPerHour   = 60;
+define SecondsPerMinute = 60;
+define msPerSecond      = 1000;
+define msPerMinute      = 60000;
+define msPerHour        = 3600000;
+define msPerDay         = 86400000;
+define msPerMonth       = 2592000000;
+
+# Note: kDayZeroInJulianDay = ToJulianDay(1970, 0, 1).
+define kInvalidDate        = 'Invalid Date';
+define kDayZeroInJulianDay = 2440588;
+define kMonthMask          = 0x1e0;
+define kDayMask            = 0x01f;
+define kYearShift          = 9;
+define 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.
+define kMinYear  = -1000000;
+define kMaxYear  = 1000000;
+define kMinMonth = -10000000;
+define kMaxMonth = 10000000;
 
 # Safe maximum number of arguments to push to stack, when multiplied by
 # pointer size. Used by Function.prototype.apply(), Reflect.apply() and
@@ -157,6 +183,44 @@
 # REGEXP_NUMBER_OF_CAPTURES
 macro NUMBER_OF_CAPTURES(array) = ((array)[0]);
 
+# Limit according to ECMA 262 15.9.1.1
+define MAX_TIME_MS = 8640000000000000;
+# Limit which is MAX_TIME_MS + msPerMonth.
+define 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 (!%_IsDate(arg)) %_ThrowNotDateError();
+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.
 define LAST_SUBJECT_INDEX = 1;
 macro LAST_SUBJECT(array) = ((array)[1]);