Class: Symbol

Inherits:
Object show all
Defined in:
lib/active_support/core_ext/duplicable.rb,
lib/active_support/core_ext/symbol.rb,
lib/active_support/json/encoders/symbol.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#duplicable? ⇒ Boolean

Returns:

  • (Boolean) 


28
29
30
 
# File 'lib/active_support/core_ext/duplicable.rb', line 28

def duplicable?
  false
end

#to_json(options = {}) ⇒ Object

:nodoc:



2
3
4
 
# File 'lib/active_support/json/encoders/symbol.rb', line 2

def to_json(options = {}) #:nodoc:
  ActiveSupport::JSON.encode(to_s, options)
end

#to_proc ⇒ Object

Turns the symbol into a simple proc, which is especially useful for enumerations. Examples:

# The same as people.collect { |p| p.name }
people.collect(&:name)

# The same as people.select { |p| p.manager? }.collect { |p| p.salary }
people.select(&:manager?).collect(&:salary)



10
11
12
 
# File 'lib/active_support/core_ext/symbol.rb', line 10

def to_proc
  Proc.new { |*args| args.shift.__send__(self, *args) }
end