Class: Temple::Mixins::GrammarDSL::Root Private

Inherits:
Or show all
Defined in:
lib/temple/mixins/grammar_dsl.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Instance Method Summary collapse

Methods inherited from Or

#<<

Methods inherited from Rule

#match?, #|

Constructor Details

#initialize(grammar, name) ⇒ Root

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Root.



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# File 'lib/temple/mixins/grammar_dsl.rb', line 52

def initialize(grammar, name)
  super(grammar)
  @name = name.to_sym
end

Instance Method Details

#after_copy(source) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/temple/mixins/grammar_dsl.rb', line 79

def after_copy(source)
  @grammar.const_set(@name, self)
  super
end

#copy_to(grammar) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/temple/mixins/grammar_dsl.rb', line 75

def copy_to(grammar)
  grammar.const_defined?(@name) ? grammar.const_get(@name) : super
end

#match(exp, unmatched) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/temple/mixins/grammar_dsl.rb', line 57

def match(exp, unmatched)
  success = super
  unmatched << [@name, exp] unless success
  success
end

#validate!(exp) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/temple/mixins/grammar_dsl.rb', line 63

def validate!(exp)
  unmatched = []
  unless match(exp, unmatched)
    require 'pp'
    entry = unmatched.first
    unmatched.reverse_each do |u|
      entry = u if u.flatten.size < entry.flatten.size
    end
    raise(InvalidExpression, PP.pp(entry.last, "#{@grammar}::#{entry.first} did not match\n".dup))
  end
end