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Commit 7265988e authored by Daniel Barlow's avatar Daniel Barlow
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-(define-condition system-definition-error (error))

 +(define-condition system-definition-error (error) ())
fix for syntax error in probably any implementation other than cmucl.
Thanks to John M Adams for pointing this out
lose the special variables for tracking visited nodes; keep this data
in the operation instead
 +(defmethod operation-ancestor ((operation operation))
 +  "Recursively chase the operation's parent pointer until we get to the head of the tree"
 +(defun make-sub-operation (o type)
use this when creating new operations so that they inherit initargs
appropriately from their parent
parent 228b251a
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