Class: TTY::Prompt::ConverterRegistry Private

Inherits:
Object
  • Object
show all
Defined in:
lib/tty/prompt/converter_registry.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Immutable collection of converters for type transformation

Instance Method Summary collapse

Constructor Details

#initialize(registry = {}) ⇒ ConverterRegistry

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Create a registry of conversions

Parameters:

  • registry (Hash) (defaults to: {}) 


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# File 'lib/tty/prompt/converter_registry.rb', line 14

def initialize(registry = {})
  @_registry = registry.dup.freeze
  freeze
end

Instance Method Details

#call(name, input) ⇒ Object Also known as: []

Execute converter



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# File 'lib/tty/prompt/converter_registry.rb', line 47

def call(name, input)
  if name.respond_to?(:call)
    converter = name
  else
    converter = @_registry.fetch(name) do
      raise ArgumentError, "#{name.inspect} is not registered"
    end
  end
  converter[input]
end

#inspect ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/tty/prompt/converter_registry.rb', line 59

def inspect
  @_registry.inspect
end

#key?(key) ⇒ Boolean

Check if converter is registered

Returns:

  • (Boolean) 


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# File 'lib/tty/prompt/converter_registry.rb', line 40

def key?(key)
  @_registry.key?(key)
end

#register(name, contents = nil, &block) ⇒ Object

Register converter

Parameters:

  • name (Symbol) —

    the converter name



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# File 'lib/tty/prompt/converter_registry.rb', line 25

def register(name, contents = nil, &block)
  item = block_given? ? block : contents

  if key?(name)
    raise ArgumentError,
          "Converter for #{name.inspect} already registered"
  end
  self.class.new(@_registry.merge(name => item))
end