class SyntaxSuggest::RipperErrors

Capture parse errors from Ripper

Prism returns the errors with their messages, but Ripper does not. To get them we must make a custom subclass.

Example:

puts RipperErrors.new(" def foo").call.errors
# => ["syntax error, unexpected end-of-input, expecting ';' or '\\n'"]

# File lib/syntax_suggest/ripper_errors.rb, line 30
def call
  @run_once ||= begin
    @errors = []
    parse
    true
  end
  self
end

# File lib/syntax_suggest/ripper_errors.rb, line 19
def on_parse_error(msg)
  @errors ||= []
  @errors << msg
end