Sha256: a668b86d80038a64ff899e7e8cf4caf12b3327ecaa9d42a1ff96334035068e33
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Versions: 96
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Contents
# encoding: utf-8
module EvalHelper
# create unless strings, for eval
#
# ==== Examples
#
# true case
#
# class EvalHelperTernaryTest
# include EvalHelper
#
# def hoge(hash)
# msg = hash[:input]
# code = \
# if hash[:ret]
# ternary_operator(hash[:cond], hash[:true_case], hash[:false_case], hash[:ret])
# else
# ternary_operator(hash[:cond], hash[:true_case], hash[:false_case])
# end
# instance_eval code
# end
# end
#
# hash = {
# input: "test",
# cond: "msg == 'test'",
# true_case: "true",
# false_case: "false",
# ret: "ret",
# }
# EvalHelperTernaryTest.new.hoge(hash) # => return 'true'
#
# false case
#
# class EvalHelperTernaryTest
# include EvalHelper
#
# def hoge(hash)
# msg = hash[:input]
# code = \
# if hash[:ret]
# ternary_operator(hash[:cond], hash[:true_case], hash[:false_case], hash[:ret])
# else
# ternary_operator(hash[:cond], hash[:true_case], hash[:false_case])
# end
# instance_eval code
# end
# end
#
# hash = {
# input: "not_test",
# cond: "msg == 'test'",
# true_case: "true",
# false_case: "false",
# ret: "ret",
# }
# EvalHelperTernaryTest.new.hoge(hash) # => return 'false'
#
def ternary_operator(condition, true_case, false_case, ret = nil)
ret = ret.nil? ? '' : "#{ret} = "
"#{ret}#{condition} ? #{true_case} : #{false_case}"
end
end
Version data entries
96 entries across 96 versions & 1 rubygems