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BinData::MultiFieldArgExtractor

Extracts args for Records and Buffers.

Foo.new(:bar => “baz) is ambiguous as to whether :bar is a value or parameter.

BaseArgExtractor always assumes :bar is parameter. This extractor correctly identifies it as value or parameter.

Public Class Methods

extract(the_class, the_args) click to toggle source
# File lib/bindata/dsl.rb, line 10
def extract(the_class, the_args)
  value, parameters, parent = BaseArgExtractor.extract(the_class, the_args)

  if parameters_is_value?(the_class, value, parameters)
    value = parameters
    parameters = {}
  end

  [value, parameters, parent]
end
field_names_in_parameters?(the_class, parameters) click to toggle source
# File lib/bindata/dsl.rb, line 29
def field_names_in_parameters?(the_class, parameters)
  field_names = the_class.fields.field_names
  param_keys = parameters.keys

  (field_names & param_keys).length > 0
end
parameters_is_value?(the_class, value, parameters) click to toggle source
# File lib/bindata/dsl.rb, line 21
def parameters_is_value?(the_class, value, parameters)
  if value.nil? and parameters.length > 0
    field_names_in_parameters?(the_class, parameters)
  else
    false
  end
end

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