CurryInfo: icurry-3.2.0 / ICurry.Interpreter.evalExternal
definition: 
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evalExternal :: Graph -> String -> [NodeID] -> Node
evalExternal gr ename ns = case unQName ename of
"apply" -> addPartialArg (lookupNode (ns!!0) gr) (ns!!1)
"$!" -> FuncNode "apply" ns
"$#" -> FuncNode "apply" ns
"prim_Int_plus" ->
ConsNode (show (lookupIntNode (ns!!0) gr + lookupIntNode (ns!!1) gr)) []
"prim_Int_mult" ->
ConsNode (show (lookupIntNode (ns!!0) gr * lookupIntNode (ns!!1) gr)) []
_ -> error $ "step: unknown external function: " ++ ename
where
unQName s = let (mn,ufn) = break (=='.') s
in if null ufn then mn else unQName (tail ufn)
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demand:
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no demanded arguments |
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deterministic:
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deterministic operation |
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documentation:
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Evaluates an external function to a node containing the evaluated value. The arguments are the current graph, the external name, and the argument nodes. |
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failfree:
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<FAILING> |
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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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{(_,_,_) |-> _}
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name:
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evalExternal |
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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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ICurry.Graph.Graph -> String -> [Prelude.Int] -> ICurry.Graph.Node |
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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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possibly non-reducible on same data term |