diff options
Diffstat (limited to 'lib/method_source/code_helpers.rb')
| -rw-r--r-- | lib/method_source/code_helpers.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/method_source/code_helpers.rb b/lib/method_source/code_helpers.rb index 9d9da55..e431742 100644 --- a/lib/method_source/code_helpers.rb +++ b/lib/method_source/code_helpers.rb @@ -1,6 +1,9 @@ module MethodSource module CodeHelpers + # @return [Boolean] + JRUBY_9200 = (defined?(JRUBY_VERSION) || false) && JRUBY_VERSION == '9.2.0.0' + # Retrieve the first expression starting on the given line of the given file. # # This is useful to get module or method source code. @@ -29,6 +32,26 @@ module MethodSource extract_first_expression(relevant_lines, options[:consume]) rescue SyntaxError => e + # JRuby 9.2.0.0 breaks #source_location for Procs (it reports line number + # as the last line of the Proc). This raises SyntaxError. + # See https://github.com/pry/pry/issues/1804 for details. + # + # To fix this, this hack rewinds source location one step at a time and + # tries to see if the new location is a complete expression. + # + # TODO: delete this once latest JRuby version is bumped. + # See https://github.com/banister/method_source/issues/52 + if JRUBY_9200 && line_number > 0 + loop do + line_number -= 1 + + # Skip empty lines since they are not real expressions. + break unless lines[line_number - 1] == "\n" + end + + retry + end + raise if options[:strict] begin |