0007362: Text>>copyFrom:to: prevents using a subclasses

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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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