Module: BinData::MultiFieldArgSeparator

Included in:
BufferArgProcessor, DelayedIoArgProcessor, RecordArgProcessor
Defined in:
lib/bindata/dsl.rb

Overview

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.

Instance Method Summary collapse

Instance Method Details

#field_names_in_parameters?(obj_class, parameters) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bindata/dsl.rb', line 28

def field_names_in_parameters?(obj_class, parameters)
  field_names = obj_class.fields.field_names
  param_keys = parameters.keys

  !(field_names & param_keys).empty?
end

#parameters_is_value?(obj_class, value, parameters) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bindata/dsl.rb', line 20

def parameters_is_value?(obj_class, value, parameters)
  if value.nil? && !parameters.empty?
    field_names_in_parameters?(obj_class, parameters)
  else
    false
  end
end

#separate_args(obj_class, obj_args) ⇒ Object 



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# File 'lib/bindata/dsl.rb', line 9

def separate_args(obj_class, obj_args)
  value, parameters, parent = super(obj_class, obj_args)

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

  [value, parameters, parent]
end