Sha256: 3908f97ae01a87314d97abd518e7e8ed64f9032428f73b8ace3a280d116cdda8
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Size: 730 Bytes
Versions: 9
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Stored size: 730 Bytes
Contents
module Predicates
private
def predicate(fn)
def fn.and(other)
-> (value) { self.(value) && other.(value) }
end
def fn.or(other)
-> (value) { self.(value) || other.(value) }
end
fn
end
def is_not(pred)
predicate(-> (bool) { !pred.(bool) })
end
def matches(regex)
predicate(->(value) { !regex.match(value).nil? })
end
def equal_to?(that)
predicate(->(this) { this == that })
end
alias is equal_to?
def where(fn, predicate)
predicate(->(value) { predicate.(fn.(value)) })
end
end
class PredicateFunction < Proc
def and(other)
->(value) { self.(value) && other.(value) }
end
def or(other)
->(value) { self.(value) || other.(value) }
end
end
Version data entries
9 entries across 9 versions & 1 rubygems