Class: BinData::Registry

Inherits:
Object
  • Object
show all
Defined in:
lib/bindata/registry.rb

Overview

This registry contains a register of name -> class mappings.

Numerics (integers and floating point numbers) have an endian property as part of their name (e.g. int32be, float_le). The lookup can either be on the full name, or on the shortened name plus endian (e.g. “int32”, :big)

Names are stored in under_score_style, not camelCase.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Registry

Returns a new instance of Registry.



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# File 'lib/bindata/registry.rb', line 14

def initialize
  @registry = {}
end

Instance Method Details

#lookup(name, endian = nil) ⇒ Object 



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# File 'lib/bindata/registry.rb', line 32

def lookup(name, endian = nil)
  key = lookup_key(name, endian)
  try_registering_key(key) unless @registry.has_key?(key)

  @registry[key] || raise(UnRegisteredTypeError, name.to_s)
end

#normalize_name(name, endian = nil) ⇒ Object 



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# File 'lib/bindata/registry.rb', line 39

def normalize_name(name, endian = nil)
  if lookup(name, endian)
    lookup_key(name, endian)
  end
end

#register(name, class_to_register) ⇒ Object 



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# File 'lib/bindata/registry.rb', line 18

def register(name, class_to_register)
  return if class_to_register.nil?

  formatted_name = lookup_key(name)
  warn_if_name_is_already_registered(formatted_name, class_to_register)

  @registry[formatted_name] = class_to_register
end

#underscore_name(name) ⇒ Object

Convert CamelCase name to underscore style.



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# File 'lib/bindata/registry.rb', line 46

def underscore_name(name)
  name.to_s.sub(/.*::/, "").
            gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
            gsub(/([a-z\d])([A-Z])/,'\1_\2').
            tr("-", "_").
            downcase
end

#unregister(name) ⇒ Object 



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# File 'lib/bindata/registry.rb', line 27

def unregister(name)
  formatted_name = lookup_key(name)
  @registry.delete(formatted_name)
end