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ID Category Severity Reproducibility Date Submitted Last Update
0007362 [Squeak] Morphic minor always 07-06-09 20:53 04-18-10 22:04
Reporter sig View Status public  
Assigned To nicolas cellier
Priority normal Resolution fixed  
Status closed   Product Version 3.10
Summary 0007362: Text>>copyFrom:to: prevents using a subclasses
Description In one of my experiments, i tried to subclass a Text by own subclass,
and i found that when i trying to pass its instance to a Workspace,
the workspace morph instead of operating with my intance of Text
subclass, unexpectably uses the instance of Text , which seems
appeared out of nowhere.

The root of all evil is in Text>>copyFrom:to:

copyFrom: start to: stop
       "Answer a copied subrange of the receiver."

       | realStart realStop |
       stop > self size
               ifTrue: [realStop _ self size] "handle selection at end of string"
               ifFalse: [realStop _ stop].
       start < 1
               ifTrue: [realStart _ 1] "handle selection before start of string"
               ifFalse: [realStart _ start].
>>> ^Text
               string: (string copyFrom: realStart to: realStop)
               runs: (runs copyFrom: realStart to: realStop)


after replacing 'Text' with 'self class' , everything works perfectly.
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- Notes
(0013367 - 66 - 78 - 238 - 238 - 238 - 238)
nicolas cellier
10-19-09 10:33
edited on: 10-19-09 10:33

Fixed in http://source.squeak.org/trunk/Collections-nice.167.mcz [^]

 

- Issue History
Date Modified Username Field Change
07-06-09 20:53 sig New Issue
10-19-09 10:33 nicolas cellier Status new => resolved
10-19-09 10:33 nicolas cellier Fixed in Version  => trunk
10-19-09 10:33 nicolas cellier Resolution open => fixed
10-19-09 10:33 nicolas cellier Assigned To  => nicolas cellier
10-19-09 10:33 nicolas cellier Note Added: 0013367
10-19-09 10:33 nicolas cellier Note Edited: 0013367
04-18-10 22:04 andreas Status resolved => closed


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