Sha256: b03470039900aa879fa06ba7e12b66dfe183e8726db3a445453c045c788877a5
Contents?: true
Size: 965 Bytes
Versions: 17
Compression:
Stored size: 965 Bytes
Contents
require 'ms/data/simple'
module Ms
module Data
module_function
# Initializes a new transposed data array.
def new_transposed(unresolved_data)
Transposed.new(unresolved_data)
end
# A Transposed data array lazily evaluates it's unresolved data as
# a transposed array. The unresolved data is evaluated
# into an array using to_a.
#
# t = Ms::Data::Transposed.new([[1,4],[2,5],[3,6]])
#
# t.unresolved_data # => [[1,4],[2,5],[3,6]]
# t.data # => []
# t[0] # => [1,2,3]
# t[1] # => [4,5,6]
# t.data # => [[1,2,3], [4,5,6]]
#
class Transposed < Simple
def [](index)
resolve.data[index]
end
def resolved?
!@data.empty?
end
def resolve
@data = @unresolved_data.to_a.transpose unless resolved?
self
end
end
end
end
Version data entries
17 entries across 17 versions & 2 rubygems