Use inlined FNV1a hash for String
...and do not use __symbolHash(). Although currently the VM also
uses FNV1a hash for Symbols, the __symbolHash() does not handle
properly character with codepoint 0 (because '\0' is used as a
string terminator). This causes problems with Unicode16/32Strigs whose
version of FNV1a hash is using object size from header to determine
string's end.
Added Symbol>>hash that actually *uses* the __symbolHash() to make
sure it's hash is the the same as used bu the VM. Symbols with zeroes
are rare and there's no Unicode16/32Symbol.
This commit fixes issue #65.
"{ Encoding: utf8 }"
"
COPYRIGHT (c) 2011 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
"{ Package: 'stx:libbasic' }"
"{ NameSpace: Smalltalk }"
Timestamp subclass:#UtcTimestamp
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'Magnitude-Time'
!
!UtcTimestamp class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 2011 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
documentation
"
This is a Timestamp, that represents itself as UTC.
Internally it stores exactly the same value as Timestamp,
so the following expression is always true:
someTimestamp asUtcTimestamp = someTimestamp asLocalTimestamp
But when printing, accessing hour, minute, ... and converting to Date and Time,
it returns the values represented in the UTC zone instead of the local timezone.
Be aware that this may lead to interesting results; for example when converting a timestamp
to a date, you may get a different date from an UTCTimestamp and a local timestamp.
[author:]
Stefan Vogel (stefan@zwerg.nil.exept.de)
[instance variables:]
[class variables:]
[see also:]
Time Date
"
! !
!UtcTimestamp methodsFor:'accessing'!
timeInfo
^ self utcTimeInfo
!
timeZoneName
^ 'UTC'
!
utcOffset
"I am an UTC timestamp, so there is no offset"
^ 0
!
utcOffsetWithoutDst
^ 0
! !
!UtcTimestamp methodsFor:'converting'!
asLocalTimestamp
"represent myself as a timestamp in the local timezone"
^ Timestamp fromOSTime:osTime
!
asUtcTimestamp
"I am an UtcTimestamp"
^ self
! !
!UtcTimestamp methodsFor:'initialization'!
setOSTimeFromYear:y month:m day:d hour:h minute:min second:s millisecond:millis
"private: ask the operating system to compute the internal osTime (based on the epoch),
given y,m,d and h,m,s in utc time"
self setOSTimeFromUTCYear:y month:m day:d hour:h minute:min second:s millisecond:millis
"
UtcTimestamp now
Timestamp now
Timestamp now asTZTimestamp
Timestamp now asUtcTimestamp
"
"Modified (comment): / 13-10-2011 / 22:05:41 / cg"
! !
!UtcTimestamp methodsFor:'private'!
storeStringClass
^ Timestamp
! !
!UtcTimestamp methodsFor:'testing'!
isLocalTimestamp
"return true, if I am a local timestamp"
^ false
!
isUtcTimestamp
"return true, if I am a utc timestamp"
^ true
! !
!UtcTimestamp methodsFor:'visiting'!
acceptVisitor:aVisitor with:aParameter
"dispatch for visitor pattern; send #visitUtcTimestamp:with: to aVisitor."
^ aVisitor visitUtcTimestamp:self with:aParameter
! !
!UtcTimestamp class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libbasic/UtcTimestamp.st,v 1.16 2015-06-06 12:42:18 cg Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/libbasic/UtcTimestamp.st,v 1.16 2015-06-06 12:42:18 cg Exp $'
! !