Class: Mapper::Rule

Inherits:

Array

• Object
• Array
• Mapper::Rule

show all

Defined in:

../lib/grammar.rb

Overview

  <expr> ::= X | X+Y | X*Y  
  

Instance Attribute Summary (collapse)

• - (Object) min_depth

  The min_depth attribute used in Validator.analyze_recursivity process (see).

• - (Object) recursivity

  The Rule (symbol) recursivity used in Validator.analyze_min_depth process (see).

• - (Object) sn_altering

  The sn_altering (structural/nodal altering) attribute is used in Validator.analyze_sn_altering process (see).

Instance Method Summary (collapse)

• - (Object) deep_copy

  Return a deep copy of the instance.

• - (Rule) initialize(ary = nil, recursive = nil, sn_altering = nil, min_depth = nil) constructor

  Initialize the Rule from the ary argument (ie. from the Enumerable of RuleAlts).

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# File '../lib/grammar.rb', line 119

def initialize( ary=nil, recursive=nil, sn_altering=nil, min_depth=nil )
  super ary unless ary.nil?
  @recursivity = recursive
  @sn_altering = sn_altering
  @min_depth = min_depth     
end

 This is a minimal number of mapping steps required by the generator to finish the mapping process.

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# File '../lib/grammar.rb', line 149

def min_depth
  @min_depth
end

  :infinite ... the Rule contains only :infinite RuleAlts, 
  :cyclic ... the Rule contains at least one :cyclic RuleAlt, 
  :terminating .. the Rule contains only :terminating RuleAlts.

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# File '../lib/grammar.rb', line 138

def recursivity
  @recursivity
end

  :structural ... the mutation on this position can result in the structural change of the phenotype.
  :nodal ... the mutation on this position cannot result in the structural change (the decision tree is unchanged).

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# File '../lib/grammar.rb', line 145

def sn_altering
  @sn_altering
end

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# File '../lib/grammar.rb', line 127

def deep_copy
  rule = map {|r| r.deep_copy } 
  Rule.new( rule, @recursivity, @sn_altering, @min_depth )
end