Ruby

Bug #4225

Updated by nobu (Nobuyoshi Nakada) about 11 years ago

=begin 
  It looks like the `IO.foreach` IO.foreach method doesn't check its argument type first if no block is provided: 

 ~~~ruby 
 
 
  fh = File.new('somefile.txt') 

 
 
  IO.foreach(fh.fileno) # Or, IO.foreach(999999999) 
 
  => #<Enumerable::Enumerator:0x110b0d4> 

 
 
  IO.foreach(fh.fileno){ |line| p line } 
 
  TypeError: can't convert Fixnum into String 
 ~~~ 

 
 
  I'd flip these two lines in io.c: 

 ~~~C 
 
 
  RETURN_ENUMERATOR(self, argc, argv); 
 
  SafeStringValue(fname); 
 ~~~ 

 
 
  Otherwise, what am I enumerating? 
 
 =end 

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