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Unable to load older my.prefs file

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timrowledge

Unable to load older my.prefs file

In a latest trunk image, fully updated, I tried to 'load from disk’ my older preferences. It fails because in DiskProxy>comeFullyUpOnReload: the code does

globalObj := Smalltalk at: symbol ifAbsent: [
preSelector == nil & (constructorSelector = #yourself) ifTrue: [
Transcript cr; show: symbol, ' is undeclared.'.
(Undeclared includesKey: symbol) ifTrue: [^ Undeclared at: symbol].
Undeclared at: symbol put: nil.
^ nil].
^ self error: 'Global "', symbol, '" not found'].
The symbol is #Context

Saving a new preferences file and reloading seems to work. I’ve no idea where the #Context comes from and pretty much any attempt to look through the stack starts firing off annoying notifiers because the ‘aDataStream’ parameter in the IdentityDictionary>readDataFrom:size: is nil by this point.
Is this crucially important? Probably not but it will annoy anyone with a preferences file.

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Science is imagination equipped with grappling hooks.

Chris Muller-3

Re: Unable to load older my.prefs file

I have no problem loading my preferences. If you're able to resave a
new prefs file and load that, maybe your prefs file was just old..?

On Mon, Jul 6, 2015 at 2:58 PM, tim Rowledge <[hidden email]> wrote:

> In a latest trunk image, fully updated, I tried to 'load from disk’ my older preferences. It fails because in DiskProxy>comeFullyUpOnReload: the code does
>
> globalObj := Smalltalk at: symbol ifAbsent: [
> preSelector == nil & (constructorSelector = #yourself) ifTrue: [
> Transcript cr; show: symbol, ' is undeclared.'.
> (Undeclared includesKey: symbol) ifTrue: [^ Undeclared at: symbol].
> Undeclared at: symbol put: nil.
> ^ nil].
> ^ self error: 'Global "', symbol, '" not found'].
> The symbol is #Context
>
> Saving a new preferences file and reloading seems to work. I’ve no idea where the #Context comes from and pretty much any attempt to look through the stack starts firing off annoying notifiers because the ‘aDataStream’ parameter in the IdentityDictionary>readDataFrom:size: is nil by this point.
> Is this crucially important? Probably not but it will annoy anyone with a preferences file.
>
> tim
> --
> tim Rowledge; [hidden email]; http://www.rowledge.org/tim
> Science is imagination equipped with grappling hooks.
>
>

timrowledge

Re: Unable to load older my.prefs file

On 06-07-2015, at 2:44 PM, Chris Muller <[hidden email]> wrote:

> I have no problem loading my preferences. If you're able to resave a
> new prefs file and load that, maybe your prefs file was just old..?

It’s possible, though the file in question is dated mid-april this year. I don’t actually interact much with the preferences since I’m either doing vm hacking and an image gets run for a short while to crash or not, or doing Scratch work and the prefs get set once and then left alone.

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Fractured Idiom:- FUI GENERIS - What's mine is mine

Eliot Miranda-2

Re: Unable to load older my.prefs file

In reply to this post by timrowledge

Hi Tim,

On Mon, Jul 6, 2015 at 12:58 PM, tim Rowledge <[hidden email]> wrote:

In a latest trunk image, fully updated, I tried to 'load from disk’ my older preferences. It fails because in DiskProxy>comeFullyUpOnReload: the code does

globalObj := Smalltalk at: symbol ifAbsent: [
preSelector == nil & (constructorSelector = #yourself) ifTrue: [
Transcript cr; show: symbol, ' is undeclared.'.
(Undeclared includesKey: symbol) ifTrue: [^ Undeclared at: symbol].
Undeclared at: symbol put: nil.
^ nil].
^ self error: 'Global "', symbol, '" not found'].
The symbol is #Context

Is there any way a Pharo preferences file could have muddied the waters? Pharo refactored ContextPart and MethodContext to Context recently. But Squeak is still using the ContextPart/MethodContext names, and while BlockCOntext remains, it isn't used.

Saving a new preferences file and reloading seems to work. I’ve no idea where the #Context comes from and pretty much any attempt to look through the stack starts firing off annoying notifiers because the ‘aDataStream’ parameter in the IdentityDictionary>readDataFrom:size: is nil by this point.
Is this crucially important? Probably not but it will annoy anyone with a preferences file.

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Science is imagination equipped with grappling hooks.

best,

Eliot

timrowledge

Re: Unable to load older my.prefs file

On 06-07-2015, at 8:10 PM, Eliot Miranda <[hidden email]> wrote:

> Is there any way a Pharo preferences file could have muddied the waters? Pharo refactored ContextPart and MethodContext to Context recently. But Squeak is still using the ContextPart/MethodContext names, and while BlockCOntext remains, it isn't used.
It’s not completely impossible, but somewhat unlikely. But the explanation makes sense, so...

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Hardware: The parts of a computer system that can be kicked.