Class: Bricolage::Parameters::DefaultValuesHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/bricolage/parameters.rb

Overview

Handles default values given by variable.yml (global or subsystem variables) Declarations + values -> IntermediateValues

Instance Method Summary collapse

Constructor Details

#initialize(decls) ⇒ DefaultValuesHandler

Returns a new instance of DefaultValuesHandler.



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# File 'lib/bricolage/parameters.rb', line 60

def initialize(decls)
  @decls = decls
end

Instance Method Details

#parse(values) ⇒ Object 



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# File 'lib/bricolage/parameters.rb', line 64

def parse(values)
  unless values.kind_of?(Hash)
    raise ParameterError, "invalid type for 'defaults' global variable: #{values.class}"
  end
  parsed_values = {}
  values.each do |name, value|
    decl = @decls[name]
    next unless decl   # ignore undeclared option
    val = decl.parse_value(value)
    # nil means really nil for default values.
    parsed_values[name] = val
  end
  IntermediateValues.new(@decls, parsed_values, Variables.new)
end