0007814: Can't save morphic projects from 4.5 to local disk only

Notes
(0014492 - 29 - 29 - 29 - 29 - 29 - 29) Herbert Koenig 03-30-14 11:40	OS: Win 7 64 Bit Home Premium

(0014493 - 450 - 583 - 583 - 583 - 583 - 583) lewis 03-30-14 14:07	We have at least two problems here. The first problem is MNU ScrapBook>>enptyScrapsBook. This is a spelling error in some recently refactored methods, and is now fixed in trunk. There is an additional problem, not yet resolved, related to Environments. Saving a project now leads to: ClassBinding>>objectForDataStream: refStream "It's not yet clear how serialization should work in the presence of environments" self shouldBeImplemented.

(0014535 - 1162 - 1302 - 1514 - 1514 - 1514 - 1514) lewis 07-26-15 02:56 edited on: 07-26-15 02:58	Colin suggested a short-term fix here: http://lists.squeakfoundation.org/pipermail/squeak-dev/2014-September/180018.html [^] For Binding>>objectForDataStream: the easy fix for the default case is to use the same implementation as Association>>objectForDataStream:. This will make save and reloading of object work in the case where there's only one environment in the image. The case of multiple environments boils down to this: saving objects to disk would have to be done from the perspective of a given environment, and loading would have to be done from that of an equivalent environment. Association's implementation special-cases instances that represent global variables so that they get looked up in "Smalltalk globals" when the objects are reloaded from disk. That should be replaced with "Environment current" so that the lookup happens in the environment we're loading against, rather than the environment where Binding is compiled. Looking further up the layers of abstraction, each Project should probably have its own environment, which would be used for compiling custom code for that project, and serializing the project to disk.

(0014579 - 184 - 208 - 578 - 578 - 578 - 578) kfr 11-21-15 22:03	http://source.squeak.org/trunk/Environments-kfr.59.mcz [^] Colin's suggested workaround for Bindings http://lists.squeakfoundation.org/pipermail/squeak-dev/2014-September/180018.html [^]

Issue History
Date Modified	Username	Field	Change
03-30-14 11:36	Herbert Koenig	New Issue
03-30-14 11:36	Herbert Koenig	Status	new => assigned
03-30-14 11:36	Herbert Koenig	Assigned To	=> KenCausey
03-30-14 11:36	Herbert Koenig	File Added: MessageNotUnderstood# ScrapBook##emptyScrapsBook.png
03-30-14 11:39	Herbert Koenig	Issue Monitored: Herbert Koenig
03-30-14 11:40	Herbert Koenig	Note Added: 0014492
03-30-14 13:48	lewis	Assigned To	KenCausey => lewis
03-30-14 14:07	lewis	Note Added: 0014493
03-30-14 15:24	Herbert Koenig	File Added: NotImplemented# ClassBinding or a superclass should implement objectForDataStream#.gif
03-31-14 22:54	lewis	Status	assigned => confirmed
03-31-14 22:55	lewis	Status	confirmed => acknowledged
07-26-15 02:56	lewis	Note Added: 0014535
07-26-15 02:58	lewis	Note Edited: 0014535
11-21-15 22:03	kfr	Note Added: 0014579

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