[augeas-devel] Re: [Augeas] #4: Put of lenses with '?' is incorrect

[Augeas]

#4: Put of lenses with '?' is incorrect
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  Reporter:  lutter  |       Owner:  lutter
      Type:  defect  |      Status:  closed
  Priority:  major   |   Milestone:  next  
 Component:  Augeas  |     Version:  devel 
Resolution:  fixed   |    Keywords:        
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Changes (by lutter):

  * status:  new => closed
  * resolution:  => fixed

Comment:

 This has been fixed with cset 635:7a4c42128118

 The Pass_put_maybe test above is rejected as a type error, since the put
 direction of '?' has no way to know whether to apply the enclosed lens or
 not.

 The typechecker now requires that in the construct 'l?', the lens l either
 produces nodes in the tree or that l contains a 'store' unconditionally.
 The means that constructs like '(del /[ \t]*/ "" . store /[a-z]+/)?' are
 legal.

-- 
Ticket URL: <https://fedorahosted.org/augeas/ticket/4#comment:3>
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