diogo/yap-6.3
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handle case where system:goal_expansion/2 is undefined.

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ubu32 2011-02-15 07:51:12 -08:00
parent 82f3af4f23
commit cd028bbd3f
1 changed files with 1 additions and 0 deletions
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pl/modules.yap
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@ -327,6 +327,7 @@ expand_goal(G, G).
true true
; ;
recorded('$dialect',swi,_), recorded('$dialect',swi,_),
'$pred_exists'(goal_expansion(G,GI), system),
system:goal_expansion(G, GI) system:goal_expansion(G, GI)
-> ->
true true