Class: Ibex::Codegen::RBS

Inherits:
Object
  • Object
show all
Defined in:
lib/ibex/codegen/rbs.rb

Overview

Generates an RBS declaration for the public surface of a generated parser. rubocop:disable Metrics/ClassLength -- one generator owns the complete parser signature.

Instance Method Summary collapse

Constructor Details

#initialize(automaton, superclass: nil, omit_action_call: nil) ⇒ RBS

Returns a new instance of RBS.



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# File 'lib/ibex/codegen/rbs.rb', line 18

def initialize(automaton, superclass: nil, omit_action_call: nil)
  @automaton = automaton
  @grammar = automaton.grammar
  @superclass = superclass || @grammar.superclass || "Ibex::Runtime::Parser"
  @omit_action_call = omit_action_call.nil? ? @grammar.options[:omit_action_call] : omit_action_call
  @generated_action_abi = GeneratedActionABI::Cache.new
end

Instance Method Details

#generate ⇒ Object 



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# File 'lib/ibex/codegen/rbs.rb', line 27

def generate
  lines = ["# Generated by Ibex #{grammar_digest_comment}", ""]
  modules, class_name = class_parts
  modules.each { |name| lines << "module #{name}" }
  lines << "class #{class_name} < #{@superclass}"
  append_ast_contract(lines)
  append_syntax_contract(lines)
  append_contract(lines)
  append_lexer_contract(lines)
  append_value_printer_signatures(lines)
  append_actions(lines)
  lines << "end"
  modules.reverse_each { lines << "end" }
  "#{lines.join("\n")}\n"
end