Class: Puppet::Pops::Evaluator::LiteralEvaluator

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/pops/evaluator/literal_evaluator.rb

Overview

Literal values for String (not containing interpolation) Numbers Booleans Undef (produces nil) Array Hash QualifiedName Default (produced :default) Regular Expression (produces ruby reqular expression)

Not considered literal QualifiedReference # i.e. File, FooBar

Constant Summary collapse

EMPTY_STRING =

include Puppet::Pops::Utils

''.freeze
COMMA_SEPARATOR = 
', '.freeze

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LiteralEvaluator

Returns a new instance of LiteralEvaluator.



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 23

def initialize
  @@literal_visitor ||= Puppet::Pops::Visitor.new(self, "literal", 0, 0)
end

Instance Method Details

#literal(ast) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 27

def literal(ast)
  @@literal_visitor.visit_this_0(self, ast)
end

#literal_ConcatenatedString(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 71

def literal_ConcatenatedString(o)
  # use double quoted string value if there is no interpolation
  throw :not_literal unless o.segments.size == 1 && o.segments[0].is_a?(Puppet::Pops::Model::LiteralString)
  o.segments[0].value
end

#literal_Factory(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 35

def literal_Factory(o)
  literal(o.model)
end

#literal_LiteralBoolean(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 55

def literal_LiteralBoolean(o)
  o.value
end

#literal_LiteralDefault(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 63

def literal_LiteralDefault(o)
  :default
end

#literal_LiteralHash(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 81

def literal_LiteralHash(o)
  o.entries.reduce({}) do |result, entry|
    result[literal(entry.key)] = literal(entry.value)
    result
  end
end

#literal_LiteralList(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 77

def literal_LiteralList(o)
  o.values.map {|v| literal(v) }
end

#literal_LiteralNumber(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 51

def literal_LiteralNumber(o)
  o.value
end

#literal_LiteralRegularExpression(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 67

def literal_LiteralRegularExpression(o)
  o.value
end

#literal_LiteralString(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 43

def literal_LiteralString(o)
  o.value
end

#literal_LiteralUndef(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 59

def literal_LiteralUndef(o)
  nil
end

#literal_Object(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 31

def literal_Object(o)
  throw :not_literal
end

#literal_Program(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 39

def literal_Program(o)
  literal(o.body)
end

#literal_QualifiedName(o) ⇒ Object 



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# File 'lib/puppet/pops/evaluator/literal_evaluator.rb', line 47

def literal_QualifiedName(o)
  o.value
end