ruby--ruby/lib/ostruct.rb

49 lines
869 B
Ruby

# ostruct.rb - Python Style Object
# just assign to create field
#
# s = OpenStruct.new
# s.foo = 25
# p s.foo
# s.bar = 2
# p s.bar
# p s
class OpenStruct
def initialize(hash=nil)
@table = {}
if hash
for k,v in hash
@table[k.to_sym] = v
end
end
end
def method_missing(mid, *args)
mname = mid.id2name
len = args.length
if mname =~ /=$/
if len != 1
raise ArgumentError, "wrong # of arguments (#{len} for 1)", caller(1)
end
mname.chop!
@table[mname.intern] = args[0]
elsif len == 0
@table[mid]
else
raise NoMethodError, "undefined method `#{mname}' for #{self}", caller(1)
end
end
def delete_field(name)
@table.delete name.to_sym
end
def inspect
str = "<#{self.class}"
for k,v in @table
str << " #{k}=#{v.inspect}"
end
str << ">"
end
end