Class: Musa::Backboner::Backboner
- Inherits:
-
Object
- Object
- Musa::Backboner::Backboner
- Includes:
- Extension::With
- Defined in:
- lib/musa-dsl/generative/backboner.rb
Instance Method Summary collapse
- #apply(object_or_list, node = nil) ⇒ Object
- #generate_possibilities(object, confirmed_node = nil, node = nil, grow_rules = nil) ⇒ Object
-
#initialize(&block) ⇒ Backboner
constructor
A new instance of Backboner.
Methods included from Extension::With
Constructor Details
#initialize(&block) ⇒ Backboner
Returns a new instance of Backboner.
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# File 'lib/musa-dsl/generative/backboner.rb', line 14 def initialize(&block) @dsl = RulesEvalContext.new(&block) end |
Instance Method Details
#apply(object_or_list, node = nil) ⇒ Object
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# File 'lib/musa-dsl/generative/backboner.rb', line 51 def apply(object_or_list, node = nil) list = object_or_list.arrayfy.clone node ||= Node.new seed = list.shift if seed result = generate_possibilities seed, node fished = result.fish node.reject! 'All children are rejected' if fished.empty? fished.each do |object| subnode = node.add(object).mark_as_ended! apply list, subnode end end node end |
#generate_possibilities(object, confirmed_node = nil, node = nil, grow_rules = nil) ⇒ Object
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# File 'lib/musa-dsl/generative/backboner.rb', line 18 def generate_possibilities(object, confirmed_node = nil, node = nil, grow_rules = nil) node ||= Node.new grow_rules ||= @dsl._grow_rules history = confirmed_node.history if confirmed_node history ||= [] grow_rules = grow_rules.clone grow_rule = grow_rules.shift if grow_rule grow_rule.generate_possibilities(object, history).each do |new_object| new_node = Node.new new_object, node new_node.mark_as_ended! if @dsl._ended? new_object rejection = @dsl._cut_rules.find { |cut_rule| cut_rule.rejects?(new_object, history) } # TODO: include rejection secondary reasons in rejection message new_node.reject! rejection if rejection node.children << new_node end end unless grow_rules.empty? node.children.each do |node| generate_possibilities node.object, confirmed_node, node, grow_rules unless node.rejected || node.ended? end end node end |