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Contents
# frozen_string_literal: true
module Vedeu
module Coercers
# Provides the mechanism to convert a value into a
# {Vedeu::Geometries::Position}.
#
# @api private
#
class Position < Vedeu::Coercers::Coercer
# @macro raise_fatal
# @return [NilClass|Vedeu::Geometries::Position]
def coerce
if value.nil? || coerced?
value
elsif tuple?
klass.new(*value)
elsif hash?(value)
klass.new(value.fetch(:y, 1), value.fetch(:x, 1))
elsif numeric?(value)
klass.new(value, 1)
else
incoercible!
end
end
private
# @return [Class]
def klass
Vedeu::Geometries::Position
end
# @macro raise_fatal
# @return [Boolean]
def tuple?
return false unless array?(value)
return true if value.size == 2
raise Vedeu::Error::Fatal,
"A '#{klass}' is made up of two elements. (Provided " \
"#{value.size}.)"
end
end # Position
end # Coercers
end # Vedeu
Version data entries
19 entries across 19 versions & 1 rubygems