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Contents
# TODO: Tests
module Slate
class Target
def self.build(metric, &block)
target = new(metric)
yield target if block_given?
target
end
def initialize(metric)
@metric = metric
@functions = []
end
def to_s
target = @metric
@functions.each do |function|
if function.is_a? Symbol
target = %Q{#{function}(#{target})}
else
args = arguments(function.last).join(",")
target = %Q{#{function.first}(#{target},#{args})}
end
end
target
end
def add_function(*function)
if function.size > 1
arguments = function[1..-1]
@functions << [function.first.to_sym, arguments]
else
@functions << function.first.to_sym
end
to_s
end
private
def arguments(args=[])
args.map do |arg|
if arg.is_a?(Numeric)
arg.to_s
elsif arg.is_a?(Slate::Graph)
arg.send(:target)
elsif arg.is_a? Slate::Target
arg.to_s
else
%Q{"#{arg}"}
end
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems