rsc3/doc-schelp/HelpSource/Classes/Pair.schelp

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2022-08-24 13:53:18 +00:00
CLASS::Pair
summary::LISP-like two element cells
categories:: Collections>Ordered
DESCRIPTION::
note::
Implementation incomplete. See link::Guides/J-concepts-in-SC:: for similar functionality.
::
Most methods are inherited from the superclasses.
CLASSMETHODS::
method::new
Return new instance.
method::newFrom
Convert collection (e.g. arrays of arrays) to pairs.
INSTANCEMETHODS::
private::storeOn, printOn, storeArgs
method::size
Return the size when linking across.
method::depth
Return the size when linking down.
method::do
Iterate over the two elements.
Traverse
Same like: link::#-depthFirstPreOrderTraversal::
method::depthFirstPreOrderTraversal
Traverse the data structure first link down, then across (see link::#Examples::).
method::depthFirstPostOrderTraversal
Traverse the data structure from bottom up (see link::#Examples::).
EXAMPLES::
code::
a = Pair(Pair(Pair(1, 2), 4), Pair(5, 6));
a.size;
a.depth;
a.do { |x| x.postln };
a.traverse { |x| x.postln };
a.depthFirstPreOrderTraversal { |x| x.postln };
a.depthFirstPostOrderTraversal { |x| x.postln };
// alternative instantiations:
Pair.newFrom([1, [2, [[4, 5], 6]]]);
[1, [2, [[4, 5], 6]]].as(Pair); // equivalent.
::