Class: Gamefic::Expression

Inherits:
Object
  • Object
show all
Defined in:
lib/gamefic/expression.rb

Overview

A tokenization of an input from available syntaxes.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(verb, tokens) ⇒ Expression

Returns a new instance of Expression.

Parameters:



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# File 'lib/gamefic/expression.rb', line 15

def initialize verb, tokens
  @verb = verb
  @tokens = tokens
end

Instance Attribute Details

#tokens ⇒ Array<String> (readonly)

Returns:



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# File 'lib/gamefic/expression.rb', line 11

def tokens
  @tokens
end

#verb ⇒ Symbol (readonly)

Returns:

  • (Symbol) 


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# File 'lib/gamefic/expression.rb', line 8

def verb
  @verb
end

Instance Method Details

#compare(other) ⇒ Object

Compare two syntaxes for the purpose of ordering them by relevance while dispatching.



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# File 'lib/gamefic/expression.rb', line 26

def compare other
  if verb == other.verb
    other.tokens.compact.length <=> tokens.compact.length
  else
    (other.verb ? 1 : 0) <=> (verb ? 1 : 0)
  end
end

#inspect ⇒ Object 



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# File 'lib/gamefic/expression.rb', line 20

def inspect
  "#<#{self.class} #{([verb] + tokens).map(&:inspect).join(', ')}>"
end