Class: DotLocal::Mapper

Inherits:
Object
  • Object
show all
Defined in:
lib/dot_local/mapper.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config, *args) ⇒ Mapper

Returns a new instance of Mapper.



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# File 'lib/dot_local/mapper.rb', line 4

def initialize(config, *args)
  @parents = args.map!(&:to_s) 
  @config  = config
  @raw     = config.raw
  parents  = @parents.dup 

  # Iterate the three and stop at the last 
  # key. @raw is now the last member of
  # the chain. 
  # This means that @raw can be either a Hash or 
  # a value
  while parent = parents.shift
    @raw = Mapper.fetch(@raw, parent)
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*args) ⇒ Object 



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# File 'lib/dot_local/mapper.rb', line 20

def method_missing(*args)
  super if args.count > 1
  return_value_or_mapper(args.first.to_s)
end

Class Method Details

.fetch(hash, key) ⇒ Object 



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# File 'lib/dot_local/mapper.rb', line 25

def self.fetch(hash, key)
  hash.fetch(key) 
rescue KeyError
  raise KeyNotFound.new("You were looking for #{key} but no luck")
end

Instance Method Details

#to_hash ⇒ Object 



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# File 'lib/dot_local/mapper.rb', line 31

def to_hash
  @raw if @raw.is_a?(Hash)
end