[squeak-dev] Updated trunk image (Squeak3.11-8472-alpha.zip)

Germán Arduino garduino at gmail.com
Sun Dec 13 14:38:04 UTC 2009


Very very good news (to my pov).

Thanks.

2009/12/13 Andreas Raab <andreas.raab at gmx.de>:
> Folks -
>
> In accordance with the earlier discussions I've uploaded a new trunk image
> with the version designator set to 3.11alpha and the new update numbering
> scheme (now at 8482):
>
>  http://ftp.squeak.org/trunk/Squeak3.11-8472-alpha.zip
>
> Below the summary of changes.
>
> Cheers,
>  - Andreas
> [------------------------- updated 12/12/09 ---------------------------]
>
> Image Version
> -------------
> The new version scheme is now active. The image version number is the sum of
> all package versions. A stub package "Squeak-Version" has been added to
> define the "base" number for the version. This image is designated as
> "Squeak3.11.alpha".
>
> Morphic
> -------
> New window resizers better in tone with the general UI look. A new
> UserDialogBoxMorph for simple modal inform/confirm dialogs.
>
> Files
> -----
> StandardFilestream now performs read-buffering, dramatically speading up
> some operations like "Object compileAll" (2x improvement) as well as various
> other operations (scanning change lists etc).
>
> Numbers
> -------
> Implementations for Float #predecessor, #successor etc. Update to the
> compact class indexes of LargePositiveInteger and LargeNegativeInteger for
> Cog. Additional tests for all of the new features.
>
> Exceptions
> ----------
> OutOfMemory has been added as a standard exception being signaled when an
> allocation fails, replacing the previous signaling of the low space
> semaphore. Improved #ensure: performance avoiding remote context
> manipulation (via #tempAt:put:) in the default case.
>
> SUnit
> -----
> Faster execution by speeding up some low level operations (like
> allTestSelectors). Fixes for thumbnail creation which would leave open
> morphs around after some tests.
>
> Kernel
> ------
> The default hash for all objects is now a scaled identity has to avoid
> extreme degradations in speed when using large numbers of objects without
> explicit hash implementation in Dictionary and Set.
>
> [------------------------- updated 11/28/09 ---------------------------]
>
> Menu Bar
> --------
> Squeak now has a standard menu bar to make it easier to discover its
> contents for new users, replacing the World menu as the prime source for
> launching tools and other activities.
>
> Compiler
> --------
> Support for literal ByteArray syntax has been added. Byte arrays can now be
> written as #[1 2 3 "..."] instead of #(1 2 3) asByteArray  avoiding the need
> for conversion and a more compact default representation.
>
> Numbers
> -------
> Some prime related changed: Integer>>isPrime is now a deterministic test,
> Integer>>isProbablyPrime a probabilistic variant. Intger>>highBit and
> Integer>>lowBit have been sped up significantly.
>
> CRLF Handling
> -------------
> CR and LF are now treated interchangeably in rendering. Both cause a line
> break and both are not displayed. Various line related methods have been
> updated to deal with both CR and LF.
>
> Collections
> -----------
> Dictionary is no longer a subclass of Set. HashedCollection is the new
> superclass for both Set and Dictionary. Conversion of OrderedCollection and
> SortedCollection to Arrays has been sped up significantly.
>
> [------------------------- updated 11/14/09 ---------------------------]
>
> Kernel
> ------
> Support for isolation layers has been retired. "self-evaluation" as a
> concept has been removed since every object can be forced to be
> self-evaluating by asking for its storeString.
>
> Projects
> --------
> Project refactoring are an ongoing process. Project itself has been split
> into Project / MVCProject / MorphicProject such that Project itself is
> abstract and various requests are handled properly in the subclasses.
>
> Collections
> -----------
> Several improvements have been added to Collections. Sets have become
> faster, Arrays now print in brace form by default, Dictionary>>keys return
> an array instead of a set.
>
> Monticello
> ----------
> Various load-order issues have been fixed within Monticello, making loading
> of packages more robust. Monticello and PackageInfo have been sped up in
> several areas making browsing of large repositories significantly faster.
>
> Faster UTF-8 Conversions
> ------------------------
> Generalize trick from ByteString>>#squeakToUtf8 to every converter using
> class instance variables. Dramatically improves performance of file
> operations.
>
> FaceLift
> --------
> An adaptation of Newspeak's Facelift look has been added to Squeak under the
> code name of "Botox" (meaning a small set of carefully chosen injections to
> improve the out of the box look for Squeak).
>
> Shout
> -----
> Shout (Syntax Hightlighting As You Type) has been added to this image. As
> with all new additions, it can be easily unloaded for people wanting smaller
> images.
>
> ToolBuilder conversion
> ----------------------
> All the tools have been given a make-over, removing pretty much all of the
> interface construction code and replacing it by ToolBuilder specs. This
> removes a huge amount of dependencies between the tools and particular UI
> frameworks, and puts all the UIs on equal footing (there were several tools
> that were either not all or only partially supported in MVC before).
>
> New Text Editors
> ----------------
> A complete new set of text editors (Editor, TextEditor and SmalltalkEditor)
> are available. They replace TextMorphEditor and break one of the last hard
> links between Morphic and MVC. With the new editors it will finally become
> possible to have Morphic be self-contained without the need to rely on
> portions of MVC.
>
> Morphic Text Improvements
> -------------------------
> Morphic has now regular blinking insertion point cursors instead of the
> (virtually invisible) static cursor previously. In addition, various
> problems with mixing fonts and the heights of text have been fixed.
>
> Preference Pragmas
> ------------------
> Preference pragmas simplify dealing with preferences by providing automatic
> discovery for preferences defined in your classes. No more littering
> Preferences; you can now define preferences local to your class and store
> the values in regular class variables. The preference gets automatically
> discovered by using the <preference:category:description:type:> pragma.
>
> Beautiful, Anti-Aliased Fonts
> -----------------------------
> We have a new set of beautiful anti-aliased Deja Vu bitmap fonts in this
> image. The default sizes include 7pt (for handheld devices), 9pt (generic
> text, list and menu fonts) as well as 12pt (window and title fonts):
>    Deja Vu 7pt: Regular, Bold, Italics
>    Deja Vu 9pt: Regular, Bold, Italics
>    Deja Vu 12pt: Regular, Bold, Italics
>
> Russian Language Support
> ------------------------
> To input text in Russian language, install a font supporting the Cyrillic
> alphabet, then switch the locale accordingly:
>
>    TTFileDescription installFamilyNamed: 'Arial'.
>    Locale switchToID: (LocaleID isoLanguage: 'ru').
>
> This will enable Russian text input, display and processing.
>
> Improved Truetype Support
> -------------------------
> The new TTFileDescription works just like TTFontDescription but operates on
> the files directly on disk. This helps greatly to support the m17n efforts
> since we no longer load all the fonts into memory. To use the available
> fonts on your platform, select some text, hit Cmd-k (Alt-k) and select "More
> (non-portable) fonts".
>
> Full Closure Support
> --------------------
> This is a closure converted image. With full closure support, you can
> finally use recursive blocks like here:
>
>    fac := [:n| n > 1 ifTrue:[n * (fac value: n-1)] ifFalse:[1]].
>    fac value: 5.
>
> and close over temps correctly, such as here:
>
>    (1 to: 10) do:[:i| WorldState addDeferredUIMessage:[Transcript cr; show:
> i]].
>
> A new Development Model
> -----------------------
> This image is being developed using a new development model described at
>
>    http://board.squeak.org/2009/07/02/a-new-community-development-model/
>
> The image itself started as Squeak3.10.2-7179-basic.image. It was then
> updated from http://source.squeak.org/trunk. In order to keep track of
> ongoing development, simply hit the 'Load Code Updates' button.
>
>
>



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Germán S. Arduino  <gsa @ arsol.net>   Twitter: garduino
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