[squeak-dev] The Trunk: Chronology-Core-dtl.18.mcz
David T. Lewis
lewis at mail.msen.com
Tue Jan 1 22:54:30 UTC 2019
In this case, the update process is failing on a comparison of two Date
instances, where one of them has a start value this is an instance of
AnObsoleteLXDateAndTime.
The updater needs to be actively using DateAndTime and Date at the same
time that I am changing their implementations. It worked fine when I
set up a local disk-based repository update stream, but not when I
copied it to trunk. Possibly there is something about updating from
an HTTP repository that is different from updating from a local disk
based MC repository.
I will have to follow up on this later. If I can't figure out how to
make the updater happy, I may need to do a one-time force-load of the
bootstrap versions from a package postscript. That will work fine, but
I would be happier if I could make it work as a normal part of the MCM
update stream.
Dave
On Tue, Jan 01, 2019 at 11:30:57PM +0100, Levente Uzonyi wrote:
> Hi Dave,
>
> At what point does the update fail?
>
> Levente
>
> On Tue, 1 Jan 2019, David T. Lewis wrote:
>
> >Sorry, I can't get this to work with the HTTP updater. I built a local
> >repository with a completely new update stream for the UTC changes It
> >worked locally but failed in the update process when copied to trunk.
> >
> >I will revert and try again another time.
> >
> >:-/
> >
> >Dave
> >
> >
> >
> >On Tue, Jan 01, 2019 at 10:18:22PM +0000, commits at source.squeak.org wrote:
> >>David T. Lewis uploaded a new version of Chronology-Core to project The
> >>Trunk:
> >>http://source.squeak.org/trunk/Chronology-Core-dtl.18.mcz
> >>
> >>==================== Summary ====================
> >>
> >>Name: Chronology-Core-dtl.18
> >>Author: dtl
> >>Time: 1 January 2019, 2:40:33.441753 am
> >>UUID: 0cdf2ac5-c63b-40df-9942-80916d4c7648
> >>Ancestors: Chronology-Core-dtl.17
> >>
> >>Bootstrap UTCDateAndTime, step 3 of 5
> >>
> >>DateAndTime and TimeStamp are now inactive, having been replaced by
> >>LXDateAndTime and LXTimeStamp. Load copies of the reimplemented
> >>LXDateAndTime and LXTimeStamp, renamed as DateAndTime and TimeStamp, to
> >>replace the original implementations of DateAndTime now.
> >>
> >>At this point, DateAndTime is an inactive copy of LXDateAndTime. The next
> >>update will activate the new DateAndTime implementation.
> >>
> >>=============== Diff against Chronology-Core-dtl.17 ===============
> >>
> >>Item was changed:
> >> Magnitude subclass: #DateAndTime
> >>+ instanceVariableNames: 'utcMicroseconds localOffsetSeconds'
> >>+ classVariableNames: 'AutomaticTimezone ClockProvider
> >>InitializeFromPrimitive LocalTimeZone PosixEpochJulianDays'
> >>- instanceVariableNames: 'seconds offset jdn nanos'
> >>- classVariableNames: 'AutomaticTimezone ClockProvider LastClockValue
> >>LocalTimeZone NanoOffset'
> >> poolDictionaries: 'ChronologyConstants'
> >> category: 'Chronology-Core'!
> >>
> >>+ !DateAndTime commentStamp: 'dtl 3/12/2016 10:32' prior: 0!
> >>- !DateAndTime commentStamp: 'bf 2/18/2016 16:20' prior: 0!
> >> I represent a point in UTC time as defined by ISO 8601. I have zero
> >> duration.
> >>
> >>+ My implementation uses variables utcMicroseconds and
> >>localOffsetSeconds. This represents time magnitude as elapsed
> >>microseconds since the Posix epoch, with localOffsetSeconds representing
> >>local offset from UTC. The magnitude is used for comparison and duration
> >>calculations, and the local offset is used for displaying this magnitude
> >>in the context of a local time zone.
> >>
> >>+ The implementation ignores leap seconds, which are adjustments made to
> >>maintain earth rotational clock time in synchronization with elapsed
> >>seconds.
> >>- My implementation uses three SmallIntegers
> >>- and a Duration:
> >>- jdn - julian day number.
> >>- seconds - number of seconds since midnight.
> >>- nanos - the number of nanoseconds since the second.
> >>
> >>+ DateAndTime class>>now will use #primitiveUtcWithOffset to obtain
> >>current time in UTC microseconds with current local offset in seconds.
> >>The primitive provides an atomic query for UTC time and local offset as
> >>measured by the OS platform. If primitiveUtcWithOffset is not available,
> >>the traditional implementation is used, which relies on a primitive for
> >>microseconds in the local time zone and derives UTC based on the TimeZone
> >>setting.
> >>- offset - duration from UTC (possibly nil if no timezone information)
> >>-
> >>- The nanosecond attribute is almost always zero but it defined for full
> >>ISO compliance and is suitable for timestamping.
> >> !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>canInitializeFromPrimitive (in
> >>category 'system startup') -----
> >>+ canInitializeFromPrimitive
> >>+ "Some implementations of primitiveUtcWithOffset do not support
> >>passing the
> >>+ DateAndTime instance as a parameter to the primitive."
> >>+
> >>+ ^self basicNew initializeFromPrimitive utcMicroseconds notNil!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>date:time: (in category 'squeak
> >> protocol') -----
> >> date: aDate time: aTime
> >>
> >> ^ self
> >>+ year: aDate year
> >>+ month: aDate monthIndex
> >>+ day: aDate dayOfMonth
> >>- year: aDate year
> >>- day: aDate dayOfYear
> >> hour: aTime hour
> >>+ minute: aTime minute
> >>- minute: aTime minute
> >> second: aTime second
> >>+ nanoSecond: aTime nanoSecond
> >> offset: aDate start offset!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>daysFromSmalltalkEpochToPosixEpoch (in
> >>category 'private') -----
> >>+ daysFromSmalltalkEpochToPosixEpoch
> >>+
> >>+ ^52 * 365 + (17 * 366)!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>epoch (in category 'squeak protocol')
> >> -----
> >> epoch
> >> "Answer a DateAndTime representing the Squeak epoch: 1 January 1901"
> >>
> >>+ ^ self utcMicroseconds: self epochOffsetMicros negated offset: 0
> >>+ !
> >>- ^ self julianDayNumber: SqueakEpoch!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>epochOffset (in category 'private')
> >>-----
> >>+ epochOffset
> >>+ "Elaspsed seconds from the Smalltalk epoch to the Posix epoch"
> >>+ ^self daysFromSmalltalkEpochToPosixEpoch * SecondsInDay!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>epochOffsetMicros (in category
> >>'private') -----
> >>+ epochOffsetMicros
> >>+ "Elaspsed microseconds from the Smalltalk epoch to the Posix epoch"
> >>+ ^self epochOffset * 1000000!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>fromSeconds: (in category
> >> 'smalltalk-80') -----
> >> fromSeconds: seconds
> >>+ "Answer a DateAndTime since the Squeak epoch: 1 January 1901
> >>- "Answer a DateAndTime since the Squeak epoch: 1 January 1901"
> >>
> >>+ Squeak traditionally used seconds since the Smalltalk epoch in local
> >>time,
> >>+ which is undefinable. The error was probably caused by some early VM
> >>design
> >>+ choices that have since been corrected. Assume now that the
> >>Smalltalk epoch
> >>+ is defined relative to GMT, and that it may be treated similarly to
> >>the Posix
> >>+ epoch except for a constant offset value.
> >>+
> >>+ This implementation differs from earlier Squeak in that it uses
> >>seconds relative
> >>+ to the Smalltalk epoch (not local time), and represents seconds as
> >>an arbitrary
> >>+ precision number rather than an integer."
> >>+
> >> ^ LXDateAndTime fromSeconds: seconds
> >>
> >>+ "| s uSec offset |
> >>+ offset := self localOffsetSeconds.
> >>+ s := seconds - self epochOffset.
> >>+ uSec := s * 1000000.
> >>+ ^ self utcMicroseconds: uSec offset: offset"
> >>+ !
> >>- "| integerSeconds nanos |
> >>- integerSeconds := seconds truncated.
> >>- integerSeconds = seconds
> >>- ifTrue: [nanos := 0]
> >>- ifFalse: [nanos := (seconds - integerSeconds *
> >>NanosInSecond) asInteger].
> >>- ^ self basicNew
> >>- ticks: (Array
> >>- with: SqueakEpoch
> >>- with: integerSeconds
> >>- with: nanos)
> >>- offset: self localOffset"!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>fromUnixTime: (in category 'squeak
> >> protocol') -----
> >>+ fromUnixTime: utcSeconds
> >>- fromUnixTime: aNumber
> >>
> >>+ ^self utcSeconds: utcSeconds offset: 0
> >>+ !
> >>-
> >>- ^ self fromSeconds: aNumber + self unixEpoch asSeconds!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>initialize (in category
> >> 'initialize-release') -----
> >> initialize
> >>+
> >>+ super initialize.
> >>+
> >>+ ClockProvider := Time.
> >>+ PosixEpochJulianDays := 2440588.
> >>+ InitializeFromPrimitive := self canInitializeFromPrimitive.
> >>+ Smalltalk addToStartUpList: self.
> >>+ self startUp: true
> >>- ClockProvider ifNil: [ClockProvider := Time].
> >>- Smalltalk addToStartUpList: self after: Delay.
> >>- self startUp: true.
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>julianDayNumber:offset: (in category
> >> 'squeak protocol') -----
> >> julianDayNumber: anInteger offset: aDuration
> >>
> >> ^ LXDateAndTime julianDayNumber: anInteger offset: aDuration
> >>
> >> "^self basicNew
> >> setJdn: anInteger
> >> seconds: 0
> >> nano: 0
> >> offset: aDuration"!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>localOffset (in category 'squeak
> >> protocol') -----
> >> localOffset
> >> "Answer the duration we are offset from UTC"
> >>
> >>+ ^ Duration seconds: self localOffsetSeconds
> >>- ^ self localTimeZone offset
> >> !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>localOffsetSeconds (in category
> >>'private') -----
> >>+ localOffsetSeconds
> >>+
> >>+ self automaticTimezone
> >>+ ifTrue: [ ^Time posixMicrosecondClockWithOffset second ]
> >>+ ifFalse: [ ^self localTimeZone offset asSeconds ]!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>new (in category 'squeak protocol')
> >> -----
> >> new
> >> "Answer a DateAndTime representing the Squeak epoch: 1 January 1901"
> >>
> >>+ ^ self utcMicroseconds: self epochOffsetMicros negated offset: 0
> >>+
> >>+ !
> >>- ^ self epoch!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>now (in category 'ansi protocol') -----
> >> now
> >>+ "Answer time now as reported by #primitiveUtcWithOffset. If the
> >>primitive is not
> >>+ available, answer the Posix epoch GMT."
> >>
> >> ^LXDateAndTime now.
> >>
> >>+ "self automaticTimezone
> >>+ ifTrue: [ InitializeFromPrimitive
> >>+ ifTrue: [ ^ self basicNew initializeFromPrimitive ]
> >>+ ifFalse: [ | timeArray |
> >>+ timeArray := Time
> >>posixMicrosecondClockWithOffset.
> >>+ ^ self utcMicroseconds: timeArray first
> >>offset: timeArray second ] ]
> >>+ ifFalse: [ | timeArray |
> >>+ timeArray := Time posixMicrosecondClockWithOffset.
> >>+ ^ self utcMicroseconds: timeArray first offset: self
> >>localOffsetSeconds ]"
> >>+ !
> >>- "| clockAndOffset localSeconds |
> >>- clockAndOffset := self clock utcMicrosecondClockWithOffset.
> >>- localSeconds := self localOffset asSeconds.
> >>- (self automaticTimezone and: [localSeconds ~= clockAndOffset second])
> >>- ifTrue: [self setLocalOffsetAutomatically: (Duration
> >>seconds: (localSeconds := clockAndOffset second))].
> >>- ^self now: clockAndOffset first + (localSeconds * 1000000) offset:
> >>self localOffset"!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>nowAtOffset: (in category 'squeak
> >> protocol') -----
> >> nowAtOffset: offsetDuration
> >> "Answers the local time at places with the specified offsetDuration
> >> timezone."
> >> "local time Chicago (CST)"
> >> "DateAndTime nowAtOffset: -6 hours"
> >>+
> >>+ ^ self utcMicroseconds: Time posixMicrosecondClockWithOffset first
> >>offset: offsetDuration asSeconds
> >>+ !
> >>- ^ self now + (offsetDuration - self localOffset) offset:
> >>offsetDuration!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>nowWithOffset: (in category 'squeak
> >>protocol') -----
> >>+ nowWithOffset: aDuration
> >>+ "Answer time now as reported by #primitiveUtcWithOffset. If the
> >>primitive is not
> >>+ available, answer the Posix epoch with time zone offset aDuration."
> >>+
> >>+ | timeArray |
> >>+ timeArray := Time posixMicrosecondClockWithOffset.
> >>+ ^ self utcMicroseconds: timeArray first offset: aDuration asSeconds
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>readFrom: (in category 'squeak
> >> protocol') -----
> >> readFrom: aStream
> >>
> >>+ | offsetSeconds ch yearMonthDay hourMinuteSecondNano offset |
> >>- | offset date time ch |
> >>
> >>+ yearMonthDay := Date readYearMonthDayFrom: aStream.
> >>- date := Date readFrom: aStream.
> >> [aStream peek isDigit]
> >> whileFalse: [aStream next].
> >>+ hourMinuteSecondNano := Time readHourMinuteSecondNanoFrom: aStream.
> >>- time := Time readFrom: aStream.
> >> (aStream atEnd or: [('+-Z' includes: aStream peek) not])
> >>+ ifTrue: [ self flag: #FIXME.
> >>+ "Different unit tests have conflicting
> >>opinions as to whether the
> >>+ current local offset should be used as a
> >>default. However, the current
> >>+ local offset cannot be correct due to DST
> >>(offset is itself a function
> >>+ of the point in time). Nevertheless, this is
> >>a reasonable default considering
> >>+ that the offset would have been explicitly
> >>part of the date string if it
> >>+ was a matter of concern. Unit tests will
> >>require updates to match this
> >>+ assumption."
> >>+ "offsetSeconds := 0"
> >>+ offsetSeconds := self localOffsetSeconds]
> >>- ifTrue: [offset := self localOffset]
> >> ifFalse: [(aStream peekFor: $Z)
> >>+ ifTrue: [offsetSeconds := 0]
> >>- ifTrue: [offset := Duration zero]
> >> ifFalse: [
> >> ch := aStream next.
> >> ch = $+ ifTrue: [ch := Character space].
> >>+ offset := Duration fromString: ch asString,
> >>'0:', aStream upToEnd, ':0'.
> >>+ offsetSeconds := offset asSeconds]].
> >>- offset := Duration fromString: ch asString,
> >>'0:', aStream upToEnd, ':0']].
> >> ^ self
> >>+ year: yearMonthDay first
> >>+ month: yearMonthDay second
> >>+ day: yearMonthDay third
> >>+ hour: hourMinuteSecondNano first
> >>+ minute: hourMinuteSecondNano second
> >>+ second: hourMinuteSecondNano third
> >>+ nanoSecond: hourMinuteSecondNano fourth
> >>+ offsetSeconds: offsetSeconds
> >>- year: date year
> >>- month: date monthIndex
> >>- day: date dayOfMonth
> >>- hour: time hour
> >>- minute: time minute
> >>- second: time second
> >>- nanoSecond: time nanoSecond
> >>- offset: offset
> >>
> >>
> >> " '-1199-01-05T20:33:14.321-05:00' asDateAndTime
> >> ' 2002-05-16T17:20:45.1+01:01' asDateAndTime
> >>
> >> ' 2002-05-16T17:20:45.02+01:01' asDateAndTime
> >>
> >> ' 2002-05-16T17:20:45.003+01:01' asDateAndTime
> >>
> >> ' 2002-05-16T17:20:45.0004+01:01' asDateAndTime
> >> ' 2002-05-16T17:20:45.00005' asDateAndTime
> >> ' 2002-05-16T17:20:45.000006+01:01' asDateAndTime
> >>
> >> ' 2002-05-16T17:20:45.0000007+01:01' asDateAndTime
> >> ' 2002-05-16T17:20:45.00000008-01:01' asDateAndTime
> >> ' 2002-05-16T17:20:45.000000009+01:01' asDateAndTime
> >> ' 2002-05-16T17:20:45.0000000001+01:01' asDateAndTime
> >>
> >> ' 2002-05-16T17:20' asDateAndTime
> >> ' 2002-05-16T17:20:45' asDateAndTime
> >> ' 2002-05-16T17:20:45+01:57' asDateAndTime
> >> ' 2002-05-16T17:20:45-02:34' asDateAndTime
> >> ' 2002-05-16T17:20:45+00:00' asDateAndTime
> >> ' 1997-04-26T01:02:03+01:02:3' asDateAndTime
> >> "!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime class>>startUp: (in category 'system
> >> startup') -----
> >> startUp: startingAfresh
> >> "Set local timezone"
> >>+ startingAfresh
> >>+ ifTrue: [InitializeFromPrimitive := self
> >>canInitializeFromPrimitive.
> >>+ Time initialize. "set LastClockTick to 0".
> >>+ self now.
> >>+ self automaticTimezone]!
> >>- startingAfresh & self automaticTimezone ifTrue: [self now].
> >>- !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>utcMicroseconds:offset: (in category
> >>'instance creation') -----
> >>+ utcMicroseconds: microsecondsSincePosixEpoch offset: secondsFromGMT
> >>+
> >>+ ^super new
> >>+ utcMicroseconds: microsecondsSincePosixEpoch
> >>+ offset: secondsFromGMT!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime
> >>class>>utcMicrosecondsForYear:month:day:hour:minute:second:nanoSecond:offsetSeconds: (in category 'private') -----
> >>+ utcMicrosecondsForYear: year month: month day: day hour: hour minute:
> >>minute second: second nanoSecond: nanoCount offsetSeconds: offsetSeconds
> >>+
> >>+ | monthIndex daysInMonth p q r s julianDayNumber posixDays seconds
> >>utcSeconds |
> >>+
> >>+ monthIndex := month isInteger ifTrue: [month] ifFalse: [Month
> >>indexOfMonth: month].
> >>+ daysInMonth := Month
> >>+ daysInMonth: monthIndex
> >>+ forYear: year.
> >>+ day < 1 ifTrue: [self error: 'day may not be zero or negative'].
> >>+ day > daysInMonth ifTrue: [self error: 'day is after month ends'].
> >>+
> >>+ p := (monthIndex - 14) quo: 12.
> >>+ q := year + 4800 + p.
> >>+ r := monthIndex - 2 - (12 * p).
> >>+ s := (year + 4900 + p) quo: 100.
> >>+
> >>+ julianDayNumber :=
> >>+ ( (1461 * q) quo: 4 ) +
> >>+ ( (367 * r) quo: 12 ) -
> >>+ ( (3 * s) quo: 4 ) +
> >>+ ( day - 32075 ).
> >>+
> >>+ posixDays := julianDayNumber - PosixEpochJulianDays.
> >>+ seconds := hour * 60 + minute * 60 + second - offsetSeconds.
> >>+ utcSeconds := seconds + (posixDays * 24 * 3600).
> >>+ ^ utcSeconds * 1000000 + (nanoCount / 1000)
> >>+ !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime class>>utcSeconds:offset: (in category
> >>'instance creation') -----
> >>+ utcSeconds: secondsSincePosixEpoch offset: secondsFromGMT
> >>+
> >>+ ^self
> >>+ utcMicroseconds: secondsSincePosixEpoch * 1000000
> >>+ offset: secondsFromGMT!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime
> >> class>>year:month:day:hour:minute:second:nanoSecond:offset: (in
> >> category 'squeak protocol') -----
> >> year: year month: month day: day hour: hour minute: minute second:
> >> second nanoSecond: nanoCount offset: offset
> >> "Return a DateAndTime"
> >>
> >>+ ^ LXDateAndTime year: year month: month day: day hour: hour minute:
> >>minute second: second nanoSecond: nanoCount offset: offset
> >>- | monthIndex daysInMonth p q r s julianDayNumber |
> >>
> >>+ "| offsetSeconds utcMicros |
> >>+ offsetSeconds := offset asSeconds.
> >>+ utcMicros := self
> >>+ utcMicrosecondsForYear: year
> >>+ month: month
> >>+ day: day
> >>+ hour: hour
> >>+ minute: minute
> >>+ second: second
> >>+ nanoSecond: nanoCount
> >>+ offsetSeconds: offsetSeconds.
> >>+ ^ self utcMicroseconds: utcMicros offset: offsetSeconds"!
> >>- monthIndex := month isInteger ifTrue: [month] ifFalse: [Month
> >>indexOfMonth: month].
> >>- daysInMonth := Month
> >>- daysInMonth: monthIndex
> >>- forYear: year.
> >>- day < 1 ifTrue: [self error: 'day may not be zero or negative'].
> >>- day > daysInMonth ifTrue: [self error: 'day is after month ends'].
> >>-
> >>- p := (monthIndex - 14) quo: 12.
> >>- q := year + 4800 + p.
> >>- r := monthIndex - 2 - (12 * p).
> >>- s := (year + 4900 + p) quo: 100.
> >>-
> >>- julianDayNumber :=
> >>- ( (1461 * q) quo: 4 ) +
> >>- ( (367 * r) quo: 12 ) -
> >>- ( (3 * s) quo: 4 ) +
> >>- ( day - 32075 ).
> >>-
> >>- ^self basicNew
> >>- setJdn: julianDayNumber
> >>- seconds: hour * 60 + minute * 60 + second
> >>- nano: nanoCount
> >>- offset: offset;
> >>- yourself!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime
> >>class>>year:month:day:hour:minute:second:nanoSecond:offsetSeconds: (in
> >>category 'squeak protocol') -----
> >>+ year: year month: month day: day hour: hour minute: minute second:
> >>second nanoSecond: nanoCount offsetSeconds: offsetSeconds
> >>+ "Return a DateAndTime"
> >>+
> >>+ | utcMicros |
> >>+ utcMicros := self
> >>+ utcMicrosecondsForYear: year
> >>+ month: month
> >>+ day: day
> >>+ hour: hour
> >>+ minute: minute
> >>+ second: second
> >>+ nanoSecond: nanoCount
> >>+ offsetSeconds: offsetSeconds.
> >>+ ^ self utcMicroseconds: utcMicros offset: offsetSeconds!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>+ (in category 'ansi protocol') -----
> >> + operand
> >> "operand conforms to protocol Duration"
> >>
> >>+ ^ self class
> >>+ utcMicroseconds: operand asDuration asNanoSeconds / 1000 +
> >>utcMicroseconds
> >>+ offset: localOffsetSeconds
> >>- | ticks |
> >>- ticks := self ticks + (operand asDuration ticks) .
> >>-
> >>- ^ self class basicNew
> >>- ticks: ticks
> >>- offset: self offset;
> >>- yourself
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>- (in category 'ansi protocol') -----
> >> - operand
> >> "operand conforms to protocol DateAndTime or protocol Duration"
> >>
> >> ^ (operand respondsTo: #asDateAndTime)
> >> ifTrue:
> >>+ [ | micros |
> >>+ micros := utcMicroseconds - operand asDateAndTime
> >>utcMicroseconds.
> >>+ Duration seconds: micros // 1000000 nanoSeconds:
> >>micros \\ 1000000 * 1000]
> >>+ ifFalse:
> >>+ [ self + (operand negated) ]
> >>- [ | lticks rticks |
> >>- lticks := self asLocal ticks.
> >>-
> >>- rticks := operand asDateAndTime asLocal ticks.
> >>- Duration
> >>- seconds: (SecondsInDay *(lticks first -
> >>rticks first)) + - (lticks
> >>second - rticks second)
> >>- nanoSeconds: (lticks third - rticks third) ]
> >>-
> >>- ifFalse:
> >>-
> >>- [ self + (operand negated) ]
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>< (in category 'ansi protocol') -----
> >>+ < comparand
> >>- < comparand
> >> "comparand conforms to protocol DateAndTime,
> >> or can be converted into something that conforms."
> >>+
> >>+ ^utcMicroseconds < comparand asDateAndTime utcMicroseconds
> >>+ !
> >>- | lvalue rvalue comparandAsDateAndTime |
> >>- comparandAsDateAndTime := comparand asDateAndTime.
> >>- self offset = comparandAsDateAndTime offset
> >>- ifTrue:
> >>- [ lvalue := self.
> >>- rvalue := comparandAsDateAndTime ]
> >>- ifFalse:
> >>- [ lvalue := self asUTC.
> >>- rvalue := comparandAsDateAndTime asUTC ].
> >>- ^ lvalue julianDayNumber < rvalue julianDayNumber or:
> >>- [ lvalue julianDayNumber > rvalue julianDayNumber
> >>- ifTrue: [ false ]
> >>- ifFalse:
> >>- [ lvalue secondsSinceMidnight < rvalue
> >>secondsSinceMidnight or:
> >>- [ lvalue secondsSinceMidnight >
> >>rvalue secondsSinceMidnight
> >>- ifTrue: [ false ]
> >>- ifFalse: [ lvalue nanoSecond
> >>< rvalue nanoSecond ] ] ] ]!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>= (in category 'ansi protocol') -----
> >>+ = aDateAndTimeOrTimeStamp
> >>+ "Equal if the absolute time values match, regardless of local time
> >>transform"
> >>- = aDateAndTimeOrTimeStamp
> >> self == aDateAndTimeOrTimeStamp ifTrue: [ ^ true ].
> >>+ ^aDateAndTimeOrTimeStamp species == DateAndTime
> >>+ and: [ utcMicroseconds = aDateAndTimeOrTimeStamp
> >>utcMicroseconds ]!
> >>- ((aDateAndTimeOrTimeStamp isKindOf: self class)
> >>- or: [aDateAndTimeOrTimeStamp isKindOf: DateAndTime orOf:
> >>TimeStamp])
> >>- ifFalse: [ ^ false ].
> >>- ^ self offset = aDateAndTimeOrTimeStamp offset
> >>- ifTrue: [ self hasEqualTicks: aDateAndTimeOrTimeStamp ]
> >>- ifFalse: [ self asUTC hasEqualTicks: aDateAndTimeOrTimeStamp
> >>asUTC ]!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>asChronologySeconds (in category
> >>'converting') -----
> >>+ asChronologySeconds
> >>+ "What #asSeconds answers in prior Chronology-format images."
> >>+ ^ self asSeconds + self offset asSeconds!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>asDuration (in category 'squeak protocol')
> >> -----
> >> asDuration
> >> "Answer the duration since midnight."
> >>
> >>+ ^ Duration seconds: self getSeconds nanoSeconds: self nanoSecond
> >>- ^ Duration seconds: seconds nanoSeconds: nanos
> >> !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>asExactSeconds (in category 'smalltalk-80')
> >>-----
> >>+ asExactSeconds
> >>+ "Return the duration in seconds since the Squeak epoch"
> >>+
> >>+ "Squeak traditionally used seconds since the Smalltalk epoch in
> >>local time,
> >>+ which is undefinable. The error was probably caused by some early VM
> >>design
> >>+ choices that have since been corrected. Assume now that the
> >>Smalltalk epoch
> >>+ is defined relative to GMT, and that it may be treated similarly to
> >>the Posix
> >>+ epoch except for a constant offset value.
> >>+
> >>+ This implementation differs from earlier Squeak in that it uses
> >>seconds relative
> >>+ to the Smalltalk epoch (not local time), and represents seconds as
> >>an arbitrary
> >>+ precision number rather than an integer."
> >>+
> >>+ ^ utcMicroseconds / 1000000 + self class epochOffset
> >>+ !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>asPosixSeconds (in category 'converting')
> >>-----
> >>+ asPosixSeconds
> >>+
> >>+ ^utcMicroseconds / 1000000
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>asSeconds (in category 'smalltalk-80') -----
> >> asSeconds
> >>+ "Return the number of seconds since the Squeak epoch. See
> >>asExactSeconds
> >>+ to retain full precision of the duration in seconds."
> >>+
> >>+ "Squeak traditionally used seconds since the Smalltalk epoch in
> >>local time,
> >>+ which is undefinable. The error was probably caused by some early VM
> >>design
> >>+ choices that have since been corrected. Assume now that the
> >>Smalltalk epoch
> >>+ is defined relative to GMT, and that it may be treated similarly to
> >>the Posix
> >>+ epoch except for a constant offset value.
> >>+
> >>+ This implementation differs from earlier Squeak in that it uses
> >>seconds relative
> >>+ to the Smalltalk epoch (not local time), and represents seconds as
> >>an arbitrary
> >>+ precision number rather than an integer."
> >>+
> >>+ ^ utcMicroseconds // 1000000 + self class epochOffset
> >>+ !
> >>- "Return the number of seconds since the Squeak epoch"
> >>- ^ (self - (self class epoch offset: offset)) asSeconds!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>asTime (in category 'squeak protocol') -----
> >> asTime
> >>
> >>
> >>+ ^ Time seconds: self getSeconds nanoSeconds: self nanoSecond
> >>- ^ Time seconds: seconds nanoSeconds: nanos
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>asTimeStamp (in category 'squeak protocol')
> >> -----
> >> asTimeStamp
> >>
> >>+ ^ self
> >>+ asDateAndTime "FIXME LX hack for test support"
> >>+ as: TimeStamp!
> >>- ^ self as: TimeStamp!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>asUTC (in category 'ansi protocol') -----
> >> asUTC
> >>
> >>+ localOffsetSeconds = 0 ifTrue: [ ^self ].
> >>+ ^self copy
> >>+ utcMicroseconds: utcMicroseconds
> >>+ offset: 0
> >>- ^ self offset isZero
> >>- ifTrue: [self]
> >>- ifFalse: [self utcOffset: 0]
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>dayMonthYearDo: (in category 'squeak
> >> protocol') -----
> >> dayMonthYearDo: aBlock
> >> "Evaluation the block with three arguments: day month, year."
> >>
> >> | l n i j dd mm yyyy |
> >>+ l := self julianDayNumber + 68569.
> >>- l := jdn + 68569.
> >> n := 4 * l // 146097.
> >> l := l - (146097 * n + 3 // 4).
> >> i := 4000 * (l + 1) // 1461001.
> >> l := l - (1461 * i // 4) + 31.
> >> j := 80 * l // 2447.
> >> dd := l - (2447 * j // 80).
> >> l := j // 11.
> >> mm := j + 2 - (12 * l).
> >> yyyy := 100 * (n - 49) + i + l.
> >>
> >> ^ aBlock
> >> value: dd
> >> value: mm
> >> value: yyyy!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>dayOfWeek (in category 'ansi protocol') -----
> >> dayOfWeek
> >>
> >> "Sunday=1, ... , Saturday=7"
> >>
> >>+ ^ (self julianDayNumber + 1 rem: 7) + 1
> >>- ^ (jdn + 1 rem: 7) + 1
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>floor (in category 'squeak protocol') -----
> >> floor
> >> "Answer a copy with magnitude rounded down to the nearest whole
> >> second"
> >>+ ^self class
> >>+ utcMicroseconds: utcMicroseconds - (utcMicroseconds \\
> >>1000000)
> >>+ offset: localOffsetSeconds!
> >>- ^self class basicNew
> >>- ticks: (self ticks at: 3 put: 0; yourself)
> >>- offset: offset.
> >>- !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>getSeconds (in category 'accessing') -----
> >>+ getSeconds
> >>+
> >>+ | posixDays posixSeconds localSeconds |
> >>+ posixSeconds := utcMicroseconds // 1000000.
> >>+ localSeconds := posixSeconds + localOffsetSeconds.
> >>+ localSeconds < 0 ifTrue: [localSeconds := localSeconds \\
> >>SecondsInDay]. "normalize"
> >>+ posixDays := localSeconds // SecondsInDay.
> >>+ ^localSeconds - (posixDays * SecondsInDay).
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>hash (in category 'ansi protocol') -----
> >> hash
> >>+ ^utcMicroseconds hash!
> >>- | totalSeconds |
> >>- totalSeconds := seconds - self offset asSeconds.
> >>- ^ ((totalSeconds // 86400 + jdn) hashMultiply bitXor: totalSeconds \\
> >>- 86400) bitXor: nanos!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>hour24 (in category 'ansi protocol') -----
> >> hour24
> >>
> >>+ ^self getSeconds // 3600!
> >>-
> >>- ^ (Duration seconds: seconds) hours!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>initializeFromPrimitive (in category
> >>'initialize-release') -----
> >>+ initializeFromPrimitive
> >>+
> >>+ Time posixMicrosecondClockWithOffset: self!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>julianDayNumber (in category 'squeak
> >> protocol') -----
> >> julianDayNumber
> >>
> >>+ | posixDays posixSeconds localSeconds negativeDays |
> >>+ posixSeconds := utcMicroseconds // 1000000.
> >>+ localSeconds := posixSeconds + localOffsetSeconds.
> >>+ negativeDays := 0.
> >>+ localSeconds < 0 ifTrue: [ "normalize"
> >>+ negativeDays := localSeconds // SecondsInDay.
> >>+ localSeconds := negativeDays * SecondsInDay +
> >>localSeconds].
> >>+ posixDays := localSeconds // SecondsInDay.
> >>+ ^posixDays + PosixEpochJulianDays - negativeDays.
> >>+ !
> >>-
> >>- ^ jdn!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>localOffsetSeconds: (in category
> >>'initialize-release') -----
> >>+ localOffsetSeconds: seconds
> >>+ "Private. Allow value to be modified during initialization in order
> >>to support local
> >>+ timezone preference."
> >>+
> >>+ localOffsetSeconds := seconds
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>makeUTC (in category 'squeak protocol') -----
> >> makeUTC
> >> "Make the receiver's timezone UTC."
> >>+ localOffsetSeconds := 0!
> >>- self primOffset: Duration zero!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>microsecondsFromDay:seconds:nanos:offset:
> >>(in category 'private') -----
> >>+ microsecondsFromDay: jdn seconds: s nanos: n offset: localOffsetSeconds
> >>+
> >>+ | days totalSeconds micros |
> >>+ days := jdn - PosixEpochJulianDays.
> >>+ totalSeconds := days * 86400 + s - localOffsetSeconds. "n.g. const
> >>86400 is faster than SecondsInDay"
> >>+ micros := totalSeconds * 1000000.
> >>+ ^micros + (n / 1000)
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>midnight (in category 'squeak protocol')
> >> -----
> >> midnight
> >> "Answer a DateAndTime starting at midnight of the same timezone
> >> offset as the receiver."
> >> ^ self class basicNew
> >>+ setJdn: self julianDayNumber
> >>+ seconds: localOffsetSeconds
> >>- setJdn: jdn
> >>- seconds: 0
> >> nano: 0
> >>+ localOffsetSeconds: localOffsetSeconds.!
> >>- offset: offset!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>minute (in category 'ansi protocol') -----
> >> minute
> >>
> >>+ ^self getSeconds // 60 \\ 60!
> >>-
> >>- ^ (Duration seconds: seconds) minutes!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>nanoSecond (in category 'squeak protocol')
> >> -----
> >> nanoSecond
> >>
> >>+ ^utcMicroseconds \\ 1000000 * 1000
> >>+ !
> >>-
> >>- ^ nanos!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>normalize:ticks:base: (in category
> >> 'private') -----
> >> normalize: i ticks: ticks base: base
> >>
> >> | tick div quo rem |
> >> tick := ticks at: i.
> >>+ div := tick asInteger digitDiv: base neg: tick negative.
> >>- div := tick digitDiv: base neg: tick negative.
> >> quo := (div at: 1) normalize.
> >> rem := (div at: 2) normalize.
> >> rem < 0 ifTrue: [ quo := quo - 1. rem := base + rem ].
> >> ticks at: (i-1) put: ((ticks at: i-1) + quo).
> >> ticks at: i put: rem
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>offset (in category 'ansi protocol') -----
> >> offset
> >>
> >>+ ^ Duration seconds: localOffsetSeconds!
> >>- ^ offset ifNil: [Duration zero]!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>offset: (in category 'ansi protocol') -----
> >> offset: anOffset
> >>
> >> "Answer a <DateAndTime> equivalent to the receiver but with its
> >> local time
> >> being offset from UTC by offset."
> >>
> >>+ | newOffset newMicros |
> >>+ self flag: #FIXME. "check the definition of this and of #utcOffset:"
> >>+ newOffset := anOffset asDuration asSeconds.
> >>+ newMicros := localOffsetSeconds - newOffset * 1000000 +
> >>utcMicroseconds.
> >>+ ^ self class utcMicroseconds: newMicros offset: newOffset
> >>+ !
> >>- ^ self class basicNew
> >>- ticks: self ticks offset: (anOffset ifNotNil: [anOffset
> >>asDuration]);
> >>- yourself!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>offsetSeconds (in category 'accessing') -----
> >>+ offsetSeconds
> >>+
> >>+ ^localOffsetSeconds!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>posixEpochJulianDays (in category
> >>'initialize-release') -----
> >>+ posixEpochJulianDays
> >>+
> >>+ ^self class daysFromSmalltalkEpochToPosixEpoch + SqueakEpoch!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>printHMSOn: (in category 'squeak protocol')
> >> -----
> >> printHMSOn: aStream
> >> "Print just hh:mm:ss"
> >>+
> >>+ | seconds |
> >>+ seconds := self getSeconds.
> >>+ seconds // 3600 printOn: aStream base: 10 length: 2 padded: true.
> >>+ aStream nextPut: $:.
> >>+ seconds \\ 3600 // 60 printOn: aStream base: 10 length: 2 padded:
> >>true.
> >>+ aStream nextPut: $:.
> >>+ seconds \\ 60 printOn: aStream base: 10 length: 2 padded: true!
> >>- aStream
> >>- nextPutAll: (self hour asString padded: #left to: 2 with:
> >>$0);
> >>- nextPut: $:;
> >>- nextPutAll: (self minute asString padded: #left to: 2 with:
> >>$0);
> >>- nextPut: $:;
> >>- nextPutAll: (self second asString padded: #left to: 2 with:
> >>$0).
> >>- !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>printOn:withLeadingSpace: (in category
> >> 'squeak protocol') -----
> >> printOn: aStream withLeadingSpace: printLeadingSpaceToo
> >> "Print as per ISO 8601 sections 5.3.3 and 5.4.1.
> >> If printLeadingSpaceToo is false, prints either:
> >> 'YYYY-MM-DDThh:mm:ss.s+ZZ:zz:z' (for positive years) or
> >> '-YYYY-MM-DDThh:mm:ss.s+ZZ:zz:z' (for negative years)
> >> If printLeadingSpaceToo is true, prints either:
> >> ' YYYY-MM-DDThh:mm:ss.s+ZZ:zz:z' (for positive years) or
> >> '-YYYY-MM-DDThh:mm:ss.s+ZZ:zz:z' (for negative years)
> >> "
> >>
> >>+ | nanos offsetSeconds |
> >> self printYMDOn: aStream withLeadingSpace: printLeadingSpaceToo.
> >> aStream nextPut: $T.
> >> self printHMSOn: aStream.
> >>+ (nanos := utcMicroseconds \\ 1000000 * 1000) = 0 ifFalse: [
> >>+ | length |
> >>+ aStream nextPut: $..
> >>+ length := 9.
> >>+ [ nanos \\ 10 = 0 ] whileTrue: [
> >>+ nanos := nanos // 10.
> >>+ length := length - 1 ].
> >>+ nanos printOn: aStream base: 10 length: length padded: true
> >>].
> >>+ "Print offset"
> >>+ aStream nextPut: (localOffsetSeconds >= 0 ifTrue: [ $+ ] ifFalse: [
> >>$- ]).
> >>+ offsetSeconds := localOffsetSeconds abs.
> >>+ offsetSeconds // 3600 printOn: aStream base: 10 length: 2 padded:
> >>true.
> >>+ aStream nextPut: $:.
> >>+ offsetSeconds \\ 3600 // 60 printOn: aStream base: 10 length: 2
> >>padded: true.
> >>+ (offsetSeconds := offsetSeconds \\ 60) = 0 ifFalse: [
> >>+ aStream
> >>- self nanoSecond ~= 0 ifTrue:
> >>- [ | z ps |
> >>- ps := self nanoSecond printString padded: #left to: 9 with:
> >>$0.
> >>- z := ps findLast: [ :c | c asciiValue > $0 asciiValue ].
> >>- (z > 0) ifTrue: [aStream nextPut: $.].
> >>- ps from: 1 to: z do: [ :c | aStream nextPut: c ] ].
> >>- aStream
> >>- nextPut: (self offset positive ifTrue: [$+] ifFalse: [$-]);
> >>- nextPutAll: (self offset hours abs asString padded: #left
> >>to: 2 with: $0);
> >>- nextPut: $:;
> >>- nextPutAll: (self offset minutes abs asString padded: #left
> >>to: 2 with: $0).
> >>- self offset seconds = 0 ifFalse:
> >>- [ aStream
> >> nextPut: $:;
> >>+ print: offsetSeconds ]!
> >>- nextPutAll: (self offset seconds abs truncated
> >>asString) ].
> >>- !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>printYMDOn:withLeadingSpace: (in category
> >> 'squeak protocol') -----
> >> printYMDOn: aStream withLeadingSpace: printLeadingSpaceToo
> >> "Print just the year, month, and day on aStream.
> >>
> >> If printLeadingSpaceToo is true, then print as:
> >> ' YYYY-MM-DD' (if the year is positive) or '-YYYY-MM-DD' (if
> >> the year is negative)
> >> otherwise print as:
> >> 'YYYY-MM-DD' or '-YYYY-MM-DD' "
> >>
> >>+ self dayMonthYearDo: [ :day :month :year |
> >>+ year negative
> >>+ ifTrue: [ aStream nextPut: $- ]
> >>+ ifFalse: [ printLeadingSpaceToo ifTrue: [ aStream
> >>space ] ].
> >>+ year abs printOn: aStream base: 10 length: 4 padded: true.
> >>+ aStream nextPut: $-.
> >>+ month printOn: aStream base: 10 length: 2 padded: true.
> >>+ aStream nextPut: $-.
> >>+ day printOn: aStream base: 10 length: 2 padded: true ]!
> >>- | year month day |
> >>- self dayMonthYearDo: [ :d :m :y | year := y. month := m. day := d ].
> >>- year negative
> >>- ifTrue: [ aStream nextPut: $- ]
> >>- ifFalse: [ printLeadingSpaceToo ifTrue: [ aStream space ]].
> >>- aStream
> >>- nextPutAll: (year abs asString padded: #left to: 4 with: $0);
> >>- nextPut: $-;
> >>- nextPutAll: (month asString padded: #left to: 2 with: $0);
> >>- nextPut: $-;
> >>- nextPutAll: (day asString padded: #left to: 2 with: $0)
> >>- !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>readDataFrom:size: (in category 'objects
> >>from disk') -----
> >>+ readDataFrom: aDataStream size: varsOnDisk
> >>+ "Fill in the fields of self based on the contents of aDataStream.
> >>The serialized
> >>+ data will have four instance variables, because all instances are
> >>serialized in a
> >>+ cononical format as if having originating from an instance with the
> >>traditional
> >>+ seconds/offset/jdn/nanos instance variables."
> >>+
> >>+ | seconds offset jdn nanos |
> >>+ seconds := aDataStream next.
> >>+ offset := aDataStream next.
> >>+ jdn := aDataStream next.
> >>+ nanos := aDataStream next.
> >>+ localOffsetSeconds := offset ifNil: [ 0 ] ifNotNil: [ :off | off
> >>asSeconds ].
> >>+ utcMicroseconds := self
> >>+ microsecondsFromDay: jdn
> >>+ seconds: seconds
> >>+ nanos: nanos
> >>+ offset: localOffsetSeconds.!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>second (in category 'ansi protocol') -----
> >> second
> >>
> >>+ ^self getSeconds \\ 60!
> >>-
> >>- ^ (Duration seconds: seconds) seconds!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>secondsSinceMidnight (in category 'private')
> >> -----
> >> secondsSinceMidnight
> >>
> >>+ ^ self getSeconds!
> >>- ^ seconds!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>setJdn:seconds:nano:localOffsetSeconds: (in
> >>category 'private') -----
> >>+ setJdn: jdn seconds: s nano: n localOffsetSeconds: offset
> >>+
> >>+ localOffsetSeconds := offset.
> >>+ utcMicroseconds := self
> >>+ microsecondsFromDay: jdn
> >>+ seconds: s - offset
> >>+ nanos: n
> >>+ offset: offset!
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>setJdn:seconds:nano:offset: (in category
> >> 'squeak protocol') -----
> >>+ setJdn: jdn seconds: s nano: n offset: o
> >>- setJdn: j seconds: s nano: n offset: o
> >>
> >>+ self setJdn: jdn seconds: s nano: n localOffsetSeconds: o asSeconds.
> >>- jdn := j.
> >>- seconds := s.
> >>- nanos := n.
> >>- offset := o
> >> !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>species (in category 'accessing') -----
> >>+ species
> >>+ ^DateAndTime!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>storeDataOn: (in category 'objects from
> >>disk') -----
> >>+ storeDataOn: aDataStream
> >>+ "Store myself on a DataStream. Answer self.
> >>+ Store 4 variables worth of data, corresponding to the 4 instance
> >>variables of the old
> >>+ DateAndTime implementation, which is to be used as common format for
> >>externally
> >>+ stored instances."
> >>+
> >>+ " | dt dt2 |
> >>+ dt := DateAndTime now.
> >>+ dt2 := DataStream testWith: dt.
> >>+ { dt . dt2 }."
> >>+
> >>+ | cntInstVars cntIndexedVars ticks jdn offset seconds nanos |
> >>+ "Set the instance variable count to 4 to match that of a cononical
> >>instance." + cntInstVars := 4.
> >>+ cntIndexedVars := self basicSize.
> >>+ aDataStream
> >>+ beginInstance: self xxxClass
> >>+ size: cntInstVars + cntIndexedVars.
> >>+
> >>+ "Create the 4 values of the old format DateAndTime"
> >>+ ticks := self ticks. "{days. seconds. nanoSeconds}."
> >>+ offset := self offset.
> >>+ jdn := ticks at: 1.
> >>+ seconds := ticks at: 2.
> >>+ nanos := ticks at: 3.
> >>+ aDataStream
> >>+ nextPut: seconds;
> >>+ nextPut: offset;
> >>+ nextPut: jdn;
> >>+ nextPut: nanos.
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>ticks (in category 'private') -----
> >> ticks
> >> "Private - answer an array with our instance variables. Assumed to
> >> be UTC "
> >>
> >>+ ^ Array with: self julianDayNumber with: self getSeconds with: self
> >>nanoSecond
> >>- ^ Array with: jdn with: seconds with: nanos
> >> !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>ticks:offset: (in category 'private') -----
> >> ticks: ticks offset: utcOffset
> >> "ticks is {julianDayNumber. secondCount. nanoSeconds}"
> >>
> >>+ | jdn s nanos |
> >> self normalize: 3 ticks: ticks base: NanosInSecond.
> >> self normalize: 2 ticks: ticks base: SecondsInDay.
> >>
> >> jdn := ticks at: 1.
> >>+ s := ticks at: 2.
> >>- seconds := ticks at: 2.
> >> nanos := ticks at: 3.
> >>+ localOffsetSeconds := utcOffset ifNil: [0] ifNotNil: [utcOffset
> >>asSeconds].
> >>+ utcMicroseconds := self microsecondsFromDay: jdn seconds: s nanos:
> >>nanos offset: localOffsetSeconds.
> >>- offset := utcOffset
> >> !
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>utcMicroseconds (in category 'accessing')
> >>-----
> >>+ utcMicroseconds
> >>+ ^utcMicroseconds!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>utcMicroseconds: (in category
> >>'initialize-release') -----
> >>+ utcMicroseconds: utcValue
> >>+ "Allow value to be modified during initialization from a primitive
> >>in order to support
> >>+ monotonically increasing clock behavior."
> >>+ utcMicroseconds := utcValue!
> >>
> >>Item was added:
> >>+ ----- Method: DateAndTime>>utcMicroseconds:offset: (in category
> >>'initialize-release') -----
> >>+ utcMicroseconds: microsecondsSincePosixEpoch offset: tzOffset
> >>+
> >>+ utcMicroseconds := microsecondsSincePosixEpoch.
> >>+ localOffsetSeconds := tzOffset.
> >>+ !
> >>
> >>Item was changed:
> >> ----- Method: DateAndTime>>utcOffset: (in category 'squeak protocol')
> >> -----
> >> utcOffset: anOffset
> >>
> >> "Answer a <DateAndTime> equivalent to the receiver but offset from
> >> UTC by anOffset"
> >>
> >>+ self flag: #FIXME. "check the definition of this and of #offset:"
> >>+ ^self utcMicroseconds: utcMicroseconds offset: anOffset asDuration
> >>asSeconds
> >>+ !
> >>- | equiv |
> >>- equiv := self + (anOffset asDuration - self offset).
> >>- ^ equiv ticks: (equiv ticks) offset: anOffset asDuration; yourself!
> >>
> >>Item was changed:
> >> ----- Method: LXDateAndTime>>asTimeStamp (in category 'squeak
> >> protocol') -----
> >> asTimeStamp
> >>
> >>+ ^ self asLXTimeStamp
> >>- ^ self asDateAndTime asTimeStamp
> >> !
> >>
> >>
> >>
>
>
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