* array.c (rb_ary_to_a): return value should be an Array if the

  receiver is an instance of subclass of Array.

* string.c (rb_str_to_s): return value should be a String if the
  receiver is an instance of subclass of String.

* eval.c (rb_call): calls method_missing when superclass method
  does not exist.

* eval.c (rb_f_missing): now handles "no super" case.

* object.c (rb_obj_ivar_get): Object#instance_variable_get: new
  method to get instance variable value without eval(). [new]

* object.c (rb_obj_ivar_set): Object#instance_variable_set: new
  method to set instance variable value without eval(). [new]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3473 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 13 insertions, 1 deletions

diff --git a/array.c b/array.c
index 7cedf1455d..666a68a947 100644
--- a/array.c
+++ b/array.c
@@ -1001,6 +1001,18 @@ static VALUE
 rb_ary_to_a(ary)
     VALUE ary;
 {
+    if (rb_obj_class(ary) != rb_cArray) {
+	VALUE dup = rb_ary_new2(RARRAY(ary)->len);
+	rb_ary_replace(dup, ary);
+	return dup;
+    }
+    return ary;
+}
+
+static VALUE
+rb_ary_to_ary_m(ary)
+    VALUE ary;
+{
     return ary;
 }
 
@@ -1891,7 +1903,7 @@ Init_Array()
     rb_define_method(rb_cArray, "to_s", rb_ary_to_s, 0);
     rb_define_method(rb_cArray, "inspect", rb_ary_inspect, 0);
     rb_define_method(rb_cArray, "to_a", rb_ary_to_a, 0);
-    rb_define_method(rb_cArray, "to_ary", rb_ary_to_a, 0);
+    rb_define_method(rb_cArray, "to_ary", rb_ary_to_ary_m, 0);
     rb_define_method(rb_cArray, "frozen?",  rb_ary_frozen_p, 0);
 
     rb_define_method(rb_cArray, "==", rb_ary_equal, 1);