[Chicken-janitors] [Chicken-bugs] #392: unquoted expressions in macros

[Chicken Scheme]

#392: unquoted expressions in macros
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 Reporter:  elf       |       Owner:     
     Type:  defect    |      Status:  new
 Priority:  critical  |   Milestone:     
Component:  compiler  |     Version:  2.7
 Keywords:  macro     |  
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 all unquoted expressions in macros are ALWAYS evaluated.
 (define-macro (some-macro foo)
     `(case ,(cadr foo)
          ((1)  ,(set! foo 2))
          ((2)  ,(set! foo 3))))

 will always set foo to 3, even if cadr foo is 1.  this is clearly
 incorrect behaviour.

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Ticket URL: <http://trac.callcc.org/ticket/392>
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