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# frozen_string_literal: true
require 'oedipus_lex'
Rake.application.rake_require 'oedipus_lex'
def update_file(path)
content = File.read(path)
File.write(path, yield(content))
end
ENCODING_COMMENT = '# frozen_string_literal: true'
GENERATED_FILES = %w[
lib/rubocop/ast/node_pattern/parser.racc.rb
lib/rubocop/ast/node_pattern/lexer.rex.rb
].freeze
desc 'Generate the lexer and parser files.'
task generate: %w[generate:lexer generate:parser]
files = {
lexer: 'lib/rubocop/ast/node_pattern/lexer.rex.rb',
parser: 'lib/rubocop/ast/node_pattern/parser.racc.rb'
}
namespace :generate do
files.each do |kind, filename|
desc "Generate just the #{kind}"
task kind => filename do
update_file(filename) do |content|
content.prepend ENCODING_COMMENT, "\n" unless content.start_with?(ENCODING_COMMENT)
content.gsub 'module NodePattern', 'class NodePattern'
end
end
end
end
rule '.racc.rb' => '.y' do |t|
cmd = "racc -l -v -o #{t.name} #{t.source}"
sh cmd
end
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