Class: Arcanus::Chest::Item

Inherits:
Object
  • Object
show all
Defined in:
lib/arcanus/chest.rb

Overview

Helper class for returning contents nested hashes, exposing helpers to access them via method calls.

Instance Method Summary collapse

Constructor Details

#initialize(hash, prefix = []) ⇒ Item

Returns a new instance of Item.



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# File 'lib/arcanus/chest.rb', line 188

def initialize(hash, prefix = [])
  @hash = hash
  @prefix = prefix
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_sym) ⇒ Object 



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# File 'lib/arcanus/chest.rb', line 193

def method_missing(method_sym, *)
  method_name = method_sym.to_s
  if @hash.key?(method_name)
    value = @hash[method_name]
    if value.is_a?(Hash)
      Item.new(value, @prefix + [method_name])
    else
      value
    end
  else
    key_name = "#{@prefix.join('.')}.#{method_name}"
    raise KeyError,
          "Key '#{key_name}' does not exist in this Arcanus chest",
          caller
  end
end

Instance Method Details

#[](key) ⇒ Object

Access the item as if it were a hash.

Parameters:

  • key (String)

Returns:

  • (Object) 


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# File 'lib/arcanus/chest.rb', line 214

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

#fetch(*args) ⇒ Object

Fetch key from the chest as if it were a hash.



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# File 'lib/arcanus/chest.rb', line 219

def fetch(*args)
  @hash.fetch(*args)
end

#inspect ⇒ Object 



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# File 'lib/arcanus/chest.rb', line 227

def inspect
  @hash.inspect
end

#to_ary ⇒ Object

Implicit conversion to array. Needs to be defined so we can ‘puts` this value.



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# File 'lib/arcanus/chest.rb', line 233

def to_ary
  [@hash]
end

#to_s ⇒ Object 



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# File 'lib/arcanus/chest.rb', line 223

def to_s
  @hash.to_s
end