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definition:
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goalVars :: PlGoal -> [String]
goalVars pgoal = case pgoal of
PlLit _ ts -> termsVars ts
PlNeg goals -> unionMap goalVars goals
PlCond gs1 gs2 gs3 -> unionMap (unionMap goalVars) [gs1,gs2,gs3]
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demand:
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argument 1
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deterministic:
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deterministic operation
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documentation:
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--- The set of all variables occurring in a Prolog goal.
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failfree:
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_
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indeterministic:
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referentially transparent operation
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infix:
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no fixity defined
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iotype:
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{({PlLit}) |-> _ || ({PlNeg}) |-> _ || ({PlCond}) |-> _}
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name:
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goalVars
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precedence:
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no precedence defined
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result-values:
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_
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signature:
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Language.Prolog.Types.PlGoal -> [String]
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solution-complete:
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operation might suspend on free variables
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terminating:
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possibly non-terminating
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totally-defined:
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reducible on all ground data terms
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