common.rb in rgot-1.3.0

- old
+ new

@@ -3,19 +3,20 @@
 require 'thread'
 require 'pathname'
 
 module Rgot
   class Common
+    # @dynamic output, output=
     attr_accessor :output
 
     def initialize
       @output = "".dup
       @failed = false
       @skipped = false
       @finished = false
       @start = Rgot.now
-      @mutex = Mutex.new
+      @mutex = Thread::Mutex.new
     end
 
     def failed?
       @mutex.synchronize { @failed }
     end
@@ -98,10 +99,10 @@
 
     def decorate(str)
       # internal_log -> synchronize -> internal_log -> other log -> running method
       c = caller[4]
       path = c.sub(/:.*/, '')
-      line = c.match(/:(\d+?):/)[1]
+      line = c.match(/:(\d+?):/)&.[](1)
       relative_path = Pathname.new(path).relative_path_from(Pathname.new(Dir.pwd)).to_s
       # Every line is indented at least 4 spaces.
       "    #{relative_path}:#{line}: #{str}\n"
     end
 