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Set.pm6
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Set.pm6
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my class Set does Setty {
has ValueObjAt $!WHICH;
method ^parameterize(Mu \base, Mu \type) {
Rakudo::Internals.PARAMETERIZE-KEYOF(base,type)
}
multi method WHICH (Set:D: --> ValueObjAt:D) {
nqp::if(
nqp::attrinited(self,Set,'$!WHICH'),
$!WHICH,
$!WHICH := nqp::box_s(
nqp::concat(
nqp::if(
nqp::eqaddr(self.WHAT,Set),
'Set|',
nqp::concat(nqp::unbox_s(self.^name), '|')
),
nqp::sha1(
nqp::join("\0",Rakudo::Sorting.MERGESORT-str(
Rakudo::QuantHash.RAW-KEYS(self)
))
)
),
ValueObjAt
)
)
}
my class Iterate does Rakudo::Iterator::Mappy {
method pull-one() {
nqp::if(
$!iter,
Pair.new(nqp::iterval(nqp::shift($!iter)),True),
IterationEnd
)
}
}
method iterator(Set:D:) { Iterate.new($!elems) }
my class KV does Rakudo::QuantHash::Quanty-kv {
method pull-one() is raw {
nqp::if(
$!on,
nqp::stmts(
($!on = 0),
True,
),
nqp::if(
$!iter,
nqp::stmts(
($!on = 1),
nqp::iterval(nqp::shift($!iter))
),
IterationEnd
)
)
}
method push-all(\target --> IterationEnd) {
nqp::while(
$!iter,
nqp::stmts( # doesn't sink
target.push(nqp::iterval(nqp::shift($!iter))),
target.push(True)
)
)
}
}
multi method kv(Set:D:) { Seq.new(KV.new(self)) }
multi method values(Set:D:) { True xx self.total }
multi method grab(Set:D: $count?) {
X::Immutable.new( method => 'grab', typename => self.^name ).throw;
}
multi method grabpairs(Set:D: $count?) {
X::Immutable.new( method => 'grabpairs', typename => self.^name ).throw;
}
#--- coercion methods
multi method Set(Set:D:) { self }
multi method SetHash(Set:D:) {
nqp::if(
$!elems && nqp::elems($!elems),
nqp::p6bindattrinvres(
nqp::create(SetHash),SetHash,'$!elems',nqp::clone($!elems)
),
nqp::create(SetHash)
)
}
multi method Setty(Set:U:) { Set }
multi method Setty(Set:D:) { self }
multi method Baggy(Set:U:) { Bag }
multi method Baggy(Set:D:) { self.Bag }
multi method Mixy (Set:U:) { Mix }
multi method Mixy (Set:D:) { self.Mix }
#--- interface methods
multi method STORE(Set:D: *@pairs, :INITIALIZE($)! --> Set:D) {
(my \iterator := @pairs.iterator).is-lazy
?? Failure.new(
X::Cannot::Lazy.new(:action<initialize>,:what(self.^name)))
!! self.SET-SELF(Rakudo::QuantHash.ADD-PAIRS-TO-SET(
nqp::create(Rakudo::Internals::IterationSet),
iterator,
self.keyof
))
}
multi method STORE(Set:D: \objects, \bools, :INITIALIZE($)! --> Set:D) {
self.SET-SELF(
Rakudo::QuantHash.ADD-OBJECTS-VALUES-TO-SET(
nqp::create(Rakudo::Internals::IterationSet),
objects.iterator,
bools.iterator
)
)
}
multi method AT-KEY(Set:D: \k --> Bool:D) {
nqp::hllbool($!elems ?? nqp::existskey($!elems,k.WHICH) !! 0)
}
multi method ASSIGN-KEY(Set:D: \k,\v) {
X::Assignment::RO.new(value => self).throw;
}
multi method DELETE-KEY(Set:D: \k) {
X::Immutable.new(method => 'DELETE-KEY', typename => self.^name).throw;
}
}
# vim: ft=perl6 expandtab sw=4