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Contents
# Quick 1-file dsl accessor
module Dslify
module ClassMethods
def default_options(hsh={})
@default_dsl_options ||= hsh
end
end
module InstanceMethods
def default_dsl_options;self.class.default_options;end
def dsl_options(hsh={})
@dsl_options ||= default_dsl_options.merge(hsh)
end
alias :options :dsl_options
def set_vars_from_options(h={}, contxt=self)
h.each{|k,v| contxt.send k.to_sym, v }
end
def add_method(meth)
# instance_eval <<-EOM
# def #{meth}(n=nil)
# puts "called #{meth}(\#\{n\}) from \#\{self\}"
# n ? (__h[:#{meth}] = n) : __h[:#{meth}]
# end
# def #{meth}=(n)
# __h[:#{meth}] = n
# end
# EOM
end
def method_missing(m,*a,&block)
if block
if a.empty?
(a[0].class == self.class) ? a[0].instance_eval(&block) : super
else
inst = a[0]
inst.instance_eval(&block)
dsl_options[m] = inst
end
else
if a.empty?
if dsl_options.has_key?(m)
dsl_options[m]
elsif m.to_s.index("?") == (m.to_s.length - 1)
if options.has_key?(val = m.to_s.gsub(/\?/, '').to_sym)
options[val] != false
else
false
end
else
if self.class.superclass.respond_to?(:default_options) && self.class.superclass.default_options.has_key?(m)
self.class.superclass.default_options[m]
elsif ((respond_to? :parent) && (parent != self))
parent.send m, *a, &block
else
super
end
end
else
clean_meth = m.to_s.gsub(/\=/,"").to_sym
dsl_options[clean_meth] = (a.size > 1 ? a : a[0])
end
end
end
end
def self.included(receiver)
receiver.extend ClassMethods
receiver.send :include, InstanceMethods
end
end
Version data entries
7 entries across 7 versions & 3 rubygems