Class: BinData::Registry
- Inherits:
-
Object
- Object
- BinData::Registry
- 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).
Classes can be looked up based on their full name or an abbreviated name
with hints
.
There are two hints supported, :endian and :search_prefix.
#lookup("int32", { endian: :big }) will return Int32Be.
#lookup("my_type", { search_prefix: :ns }) will return NsMyType.
Names are stored in under_score_style, not camelCase.
Instance Method Summary collapse
-
#initialize ⇒ Registry
constructor
A new instance of Registry.
- #lookup(name, hints = {}) ⇒ Object
- #register(name, class_to_register) ⇒ Object
-
#underscore_name(name) ⇒ Object
Convert CamelCase
name
to underscore style. - #unregister(name) ⇒ Object
Constructor Details
#initialize ⇒ Registry
Returns a new instance of Registry.
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# File 'lib/bindata/registry.rb', line 22 def initialize @registry = {} end |
Instance Method Details
#lookup(name, hints = {}) ⇒ Object
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# File 'lib/bindata/registry.rb', line 39 def lookup(name, hints = {}) the_class = @registry[normalize_name(name, hints)] if the_class the_class elsif @registry[normalize_name(name, hints.merge(endian: :big))] raise(UnRegisteredTypeError, "#{name}, do you need to specify endian?") else raise(UnRegisteredTypeError, name) end end |
#register(name, class_to_register) ⇒ Object
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# File 'lib/bindata/registry.rb', line 26 def register(name, class_to_register) return if name.nil? || class_to_register.nil? formatted_name = underscore_name(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 51 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 35 def unregister(name) @registry.delete(underscore_name(name)) end |