Class: Toil::Arguments

Inherits:
Object
  • Object
show all
Defined in:
lib/toil/arguments.rb

Instance Method Summary collapse

Constructor Details

#initialize(args, &blk) ⇒ Arguments

Returns a new instance of Arguments.



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# File 'lib/toil/arguments.rb', line 7

def initialize(args, &blk)
  @args = __array__(args).map { |v| __arg__(v) }
  __find_attributes__
  instance_eval(&blk) if block_given?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &blk) ⇒ Object 



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# File 'lib/toil/arguments.rb', line 13

def method_missing(m, *args, &blk)
  attribute(m, args.first, &blk)
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/toil/arguments.rb', line 41

def [](key)
  @attributes[key]
end

#arg(value = nil, &blk) ⇒ Object 



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# File 'lib/toil/arguments.rb', line 17

def arg(value = nil, &blk)
  arg_at(@args.size, value, &blk)
end

#arg_at(index, value = nil, &blk) ⇒ Object 



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# File 'lib/toil/arguments.rb', line 21

def arg_at(index, value = nil, &blk)
  @args[index] = __arg__(value, &blk)
  __find_attributes__
  @args[index]
end

#attribute(key, value = nil, &blk) ⇒ Object 



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# File 'lib/toil/arguments.rb', line 27

def attribute(key, value = nil, &blk)
  @attributes || arg({})
  @attributes.__set__(key, value, &blk)
end

#attributes_at ⇒ Object 



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# File 'lib/toil/arguments.rb', line 32

def attributes_at
  @args.each_with_index { |v, i| return i if v == @attributes }
  nil
end

#dup(&blk) ⇒ Object 



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# File 'lib/toil/arguments.rb', line 37

def dup(&blk)
  self.class.new(@args, &blk)
end

#to_a(*overrides) ⇒ Object Also known as: to_ary 



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# File 'lib/toil/arguments.rb', line 45

def to_a(*overrides)
  @args.each_with_index.map do |a, i|
    if overrides.size > i
      __merge_or_override__(overrides[i], a)
    elsif a.is_a?(Attributes)
      a.to_h
    else
      a.call
    end
  end + Array(overrides[(@args.size)..-1])
end

#to_h(overrides = {}) ⇒ Object Also known as: to_hash 



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# File 'lib/toil/arguments.rb', line 58

def to_h(overrides = {})
  @attributes.to_h(overrides)
end