Class: Gloo::Verbs::If

Inherits:
Core::Verb show all
Defined in:
lib/gloo/verbs/if.rb

Constant Summary collapse

KEYWORD = 
'if'.freeze
KEYWORD_SHORT = 
'if'.freeze
THEN = 
'then'.freeze
ELSE = 
'else'.freeze
MISSING_EXPR_ERR = 
'Missing Expression!'.freeze

Constants inherited from Core::Baseo

Core::Baseo::NOT_IMPLEMENTED_ERR

Instance Attribute Summary

Attributes inherited from Core::Verb

#params, #tokens

Attributes inherited from Core::Baseo

#name

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Core::Verb

#display_value, help, inherited, #initialize, #type_display

Methods inherited from Core::Baseo

#initialize, #type_display

Constructor Details

This class inherits a constructor from Gloo::Core::Verb

Class Method Details

.keyword ⇒ Object

Get the Verb’s keyword.



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# File 'lib/gloo/verbs/if.rb', line 37

def self.keyword
  return KEYWORD
end

.keyword_shortcut ⇒ Object

Get the Verb’s keyword shortcut.



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# File 'lib/gloo/verbs/if.rb', line 44

def self.keyword_shortcut
  return KEYWORD_SHORT
end

Instance Method Details

#run ⇒ Object

Run the verb.



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# File 'lib/gloo/verbs/if.rb', line 20

def run
  value = value_tokens
  return if value.nil?

  @then = @tokens.expr_after( THEN, ELSE )
  @else = @tokens.expr_after( ELSE )

  if evals_true( value )
    run_then
  else
    run_else unless @else.blank?
  end
end