-- GeNeRaTeD fOr: ../../CBS/Funcons/Computations/Control flow/Normal/Iterating/Definite/Filtering collections/set-filter.aterm
{-# LANGUAGE OverloadedStrings #-}

module Funcons.Core.Computations.ControlFlow.Normal.Iterating.Definite.FilteringCollections.SetFilter where

import Funcons.EDSL

entities = []

types = typeEnvFromList
    []

funcons = libFromList
    [("set-filter",PartiallyStrictFuncon [NonStrict,Strict] stepSet_filter)]

-- |
-- /set-filter(P,S)/ deletes all entries from the the set /S/ that do not
--   satisfy the predicate /P/ .
set_filter_ fargs = FApp "set-filter" (FTuple fargs)
stepSet_filter fargs@[arg1,arg2] =
    evalRules [rewrite1] []
    where rewrite1 = do
            let env = emptyEnv
            env <- fsMatch fargs [PMetaVar "F",PAnnotated (PMetaVar "S") (TName "values")] env
            rewriteTermTo (TApp "list-to-set" (TTuple [TApp "list-filter" (TTuple [TVar "F",TApp "set-to-list" (TTuple [TVar "S"])])])) env
stepSet_filter fargs = sortErr (FApp "set-filter" (FTuple fargs)) "invalid number of arguments"