Class: GlooLang::Core::Verb

Inherits:
Baseo
  • Object
show all
Defined in:
lib/gloo_lang/core/verb.rb

Constant Summary

Constants inherited from Baseo

Baseo::NOT_IMPLEMENTED_ERR

Instance Attribute Summary collapse

Attributes inherited from Baseo

#name

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(engine, tokens, params = []) ⇒ Verb

Set up the verb.



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# File 'lib/gloo_lang/core/verb.rb', line 19

def initialize( engine, tokens, params = [] )
  @engine = engine
  @tokens = tokens
  @params = params
end

Instance Attribute Details

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/gloo_lang/core/verb.rb', line 14

def params
  @params
end

#tokens ⇒ Object (readonly)

Returns the value of attribute tokens.



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# File 'lib/gloo_lang/core/verb.rb', line 14

def tokens
  @tokens
end

Class Method Details

.help ⇒ Object

Get help for this verb.



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# File 'lib/gloo_lang/core/verb.rb', line 81

def self.help
  return 'No help found.'
end

.inherited(subclass) ⇒ Object

Register verbs when they are loaded.



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# File 'lib/gloo_lang/core/verb.rb', line 28

def self.inherited( subclass )
  Dictionary.instance.register_verb( subclass )
end

.keyword ⇒ Object

Get the Verb’s keyword.

The keyword will be in lower case only. It is used by the parser.



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# File 'lib/gloo_lang/core/verb.rb', line 48

def self.keyword
  raise 'this method should be overriden'
end

.keyword_shortcut ⇒ Object

Get the Verb’s keyword shortcut.



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# File 'lib/gloo_lang/core/verb.rb', line 55

def self.keyword_shortcut
  raise 'this method should be overriden'
end

Instance Method Details

#display_value ⇒ Object

Generic function to get display value. Can be used for debugging, etc.



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# File 'lib/gloo_lang/core/verb.rb', line 70

def display_value
  return self.class.keyword
end

#run ⇒ Object

Run the verb.

We’ll mark the application as not running and let the engine stop gracefully next time through the loop.



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# File 'lib/gloo_lang/core/verb.rb', line 38

def run
  raise 'this method should be overriden'
end

#type_display ⇒ Object

The object type, suitable for display.



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# File 'lib/gloo_lang/core/verb.rb', line 62

def type_display
  return self.class.keyword
end