Class: RubyUnits::Cache

Inherits:

Object

• Object
• RubyUnits::Cache

Defined in:

lib/ruby_units/cache.rb

Overview

Performance optimizations to avoid creating units unnecessarily

Instance Attribute Summary

• #data ⇒ Object

  Returns the value of attribute data.

Instance Method Summary

• #clear ⇒ Object

  Reset the cache.

• #get(key) ⇒ RubyUnits::Unit^?
• #initialize ⇒ Cache constructor

  A new instance of Cache.

• #keys ⇒ Array<String>
• #set(key, value) ⇒ void

Constructor Details

#initialize ⇒ Cache

Returns a new instance of Cache.

# File 'lib/ruby_units/cache.rb', line 6

def initialize
  clear
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.

# File 'lib/ruby_units/cache.rb', line 4

def data
  @data
end

Instance Method Details

#clear ⇒ Object

Reset the cache

# File 'lib/ruby_units/cache.rb', line 30

def clear
  @data = {}
end

#get(key) ⇒ RubyUnits::Unit^?

Parameters:

• key (String, #to_unit)

Returns:

• (RubyUnits::Unit, nil)

# File 'lib/ruby_units/cache.rb', line 12

def get(key)
  key = key&.to_unit&.units unless key.is_a?(String)
  data[key]
end

#keys ⇒ Array<String>

Returns:

• (Array<String>)

# File 'lib/ruby_units/cache.rb', line 25

def keys
  data.keys
end

#set(key, value) ⇒ void

This method returns an undefined value.

Parameters:

• key (String, #to_unit)

# File 'lib/ruby_units/cache.rb', line 19

def set(key, value)
  key = key.to_unit.units unless key.is_a?(String)
  data[key] = value
end