Module: ByteObject

Defined in:
lib/ByteObject.rb

Overview

The ByteObject module adds several attribute methods to any class that includes it, to aid in writing programs that require manipulating bytes of specific size. It also has helper methods to make working with binary files easier.

Defined Under Namespace

Modules: ByteAttributes

Instance Method Summary collapse

Instance Method Details

#from_hash!(hash) ⇒ Object

Takes a hash (or hash-like object whose #each method yields a key-value pair) and assigns the values of its keys to instance variables with the same names. If there is an attribute writer method, it will attempt to use that; otherwise it will set the instance variable directly (much to the chagrin of whoever wrote the official Ruby documentation).

As the bang might suggest, this method is dangerous and modifies the calling object.

Parameters:

  • hash 


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# File 'lib/ByteObject.rb', line 83

def from_hash!(hash)
  hash.each do |key, value|
    if methods.include?("#{key}=".to_sym)
      send("#{key}=", value)
    else
      instance_variable_set("@#{key}", value)
    end
  end
end