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Class: RuboCop::AST::NodePattern::Lexer

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
Parser::WithMeta::Lexer
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, LexerRex
Instance Chain:
self, LexerRex
Inherits: LexerRex
  • Object
Defined in: lib/rubocop/ast/node_pattern/lexer.rb

Overview

Lexer class for ::RuboCop::AST::NodePattern

Doc on how this fits in the compiling process: /docs/modules/ROOT/pages/node_pattern.adoc

Constant Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(source) ⇒ Lexer

[ GitHub ] 

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 31



def initialize(source)
  @tokens = []
  super()
  parse(source)
end


  







Instance Attribute Details



  

    #comments   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 29



attr_reader :source_buffer, :comments, :tokens


  








  

    #source_buffer   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 29



attr_reader :source_buffer, :comments, :tokens


  








  

    #tokens   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 29



attr_reader :source_buffer, :comments, :tokens


  







Instance Method Details



  

    #do_parse   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 60



def do_parse
  # Called by the generated `parse` method, do nothing here.
end


  








  

    #emit(type)  ⇒ token  (private)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 40



def emit(type)
  value = ss[1] || ss.matched
  value = yield value if block_given?
  token = token(type, value)
  @tokens << token
  token
end


  








  

    #emit_comment   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 48



def emit_comment
  nil
end


  








  

    #emit_regexp   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 52



def emit_regexp
  body = ss[1]
  options = ss[2]
  flag = options.each_char.sum { |c| REGEXP_OPTIONS[c] }

  emit(:tREGEXP) { Regexp.new(body, flag) }
end


  








  

    #token(type, value)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/ast/node_pattern/lexer.rb', line 64



def token(type, value)
  [type, value]
end