Method: Array#fetch_opts

Defined in:
lib/rmtools/core/arguments.rb

#fetch_opts(defaults = [], opts = {}) ⇒ Object Also known as: get_opts

a, b, opts = [<hash1>].fetch_opts([<hash2>, <object1>]) may work unintuitive: you’ll get <hash1> as ‘a’ and not as ‘opts’ So if function is not implying that some argument other than ‘opts’ definetly must be a hash, don’t make hash default. Better put hashie argument into opts like b, opts = [<hash1>].fetch([<object1>], :a => <hash2>) and get ‘a’ from ‘’opts’ hash



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/rmtools/core/arguments.rb', line 11

def fetch_opts(defaults=[], opts={})
  if Hash === defaults
    opts, defaults = defaults, []
    return_hash = true
    $log.warn "fetch_opts(<hash>) now changed, if you want to jsut fetch hash options, use `opts = <hash>.merge(opts||{})' construction", :caller => 2
  else
    return_hash = false
  end
  opts &&= if Hash === self[-1] and !(Hash === defaults[size-1])
    opts.merge pop
  else
    opts.dup
  end
  return opts if return_hash
  if defaults == :flags
    defaults = [:flags]
  end
  if defaults.last == :flags
    defaults.pop
    flags = defaults.size..-1
    if defaults.size < size
      self[flags].each {|flag| opts[flag] = true}
      self[flags] = []
    end
  end
  each_index {|i| import(defaults, i) if :def == self[i]}
  defaults.slice! 0, size
  concat defaults << opts
end