Class: Rattler::Parsers::RuleSet

Inherits:
Util::Node show all
Defined in:
lib/rattler/parsers/rule_set.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Util::Node

#==, [], #attrs, #can_equal?, #child, #children, #each, #empty?, #eql?, #inspect, #method_missing, #name, #respond_to?, #same_contents?, #to_graphviz, #with_attrs!, #with_children

Constructor Details

#initialize(*args) ⇒ RuleSet

Returns a new instance of RuleSet.



18
19
20
21
22
 
# File 'lib/rattler/parsers/rule_set.rb', line 18

def initialize(*args)
  super
  @by_name = {}
  children.each {|rule| @by_name[rule.name] = rule }
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Rattler::Util::Node

Class Method Details

.parsed(results, *_) ⇒ Object 



14
15
16
 
# File 'lib/rattler/parsers/rule_set.rb', line 14

def self.parsed(results, *_) #:nodoc:
  self.new(results)
end

Instance Method Details

#[](*args) ⇒ Object 



34
35
36
37
38
39
40
 
# File 'lib/rattler/parsers/rule_set.rb', line 34

def [](*args)
  if args.length == 1 and args[0].is_a?(Symbol)
    rule(args[0])
  else
    super
  end
end

#analysis ⇒ Object 



58
59
60
 
# File 'lib/rattler/parsers/rule_set.rb', line 58

def analysis
  @analysis ||= Rattler::Grammar::Analysis.new(self)
end

#map_rules ⇒ Object 



50
51
52
 
# File 'lib/rattler/parsers/rule_set.rb', line 50

def map_rules
  self.with_rules rules.map {|_| yield _ }
end

#rule(name) ⇒ Object 



30
31
32
 
# File 'lib/rattler/parsers/rule_set.rb', line 30

def rule(name)
  @by_name[name]
end

#select_rules ⇒ Object 



54
55
56
 
# File 'lib/rattler/parsers/rule_set.rb', line 54

def select_rules
  self.with_rules rules.select {|_| yield _ }
end

#start_rule ⇒ Object 



26
27
28
 
# File 'lib/rattler/parsers/rule_set.rb', line 26

def start_rule
  attrs[:start_rule]
end

#with_attrs(new_attrs) ⇒ Object 



42
43
44
 
# File 'lib/rattler/parsers/rule_set.rb', line 42

def with_attrs(new_attrs)
  self.class.new(children, attrs.merge(new_attrs))
end

#with_rules(new_rules) ⇒ Object 



46
47
48
 
# File 'lib/rattler/parsers/rule_set.rb', line 46

def with_rules(new_rules)
  self.class.new(new_rules, attrs)
end