* error.c (Init_Exception): remove Exception#to_str. [Ruby2]

* eval.c (error_print): should no call "to_str" anymore use
  "message" method instead.

* io.c (rb_f_open): Kernel#open() calls "to_open" if the first
  argument responds to it. [Ruby2]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6102 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 3 deletions

diff --git a/io.c b/io.c
index ef46499920..a5f6f1431d 100644
--- a/io.c
+++ b/io.c
@@ -3039,10 +3039,17 @@ rb_f_open(argc, argv)
     VALUE *argv;
 {
     if (argc >= 1) {
-	char *str = StringValuePtr(argv[0]);
+	ID to_open = rb_intern("to_open");
 
-	if (str[0] == '|') {
-	    return rb_io_popen(str+1, argc, argv, rb_cIO);
+	if (rb_respond_to(argv[0], to_open)) {
+	    return rb_funcall2(argv[0], to_open, argc-1, argv+1);
+	}
+	else {
+	    char *str = StringValuePtr(argv[0]);
+
+	    if (str[0] == '|') {
+		return rb_io_popen(str+1, argc, argv, rb_cIO);
+	    }
 	}
     }
     return rb_io_s_open(argc, argv, rb_cFile);