* 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, 26 insertions, 0 deletions

diff --git a/object.c b/object.c
index 7a59abee13..5cfc3ed579 100644
--- a/object.c
+++ b/object.c
@@ -926,6 +926,30 @@ rb_obj_public_methods(obj)
 }
 
 static VALUE
+rb_obj_ivar_get(obj, iv)
+    VALUE obj, iv;
+{
+    ID id = rb_to_id(iv);
+
+    if (!rb_is_instance_id(id)) {
+	rb_name_error(id, "`%s' is not an instance variable name", rb_id2name(id));
+    }
+    return rb_ivar_get(obj, id);
+}
+
+static VALUE
+rb_obj_ivar_set(obj, iv, val)
+    VALUE obj, iv, val;
+{
+    ID id = rb_to_id(iv);
+
+    if (!rb_is_instance_id(id)) {
+	rb_name_error(id, "`%s' is not an instance variable name", rb_id2name(id));
+    }
+    return rb_ivar_set(obj, id, val);
+}
+
+static VALUE
 convert_type(val, tname, method, raise)
     VALUE val;
     const char *tname, *method;
@@ -1346,6 +1370,8 @@ Init_Object()
     rb_define_method(rb_mKernel, "private_methods", rb_obj_private_methods, 0);
     rb_define_method(rb_mKernel, "public_methods", rb_obj_public_methods, 0);
     rb_define_method(rb_mKernel, "instance_variables", rb_obj_instance_variables, 0);
+    rb_define_method(rb_mKernel, "instance_variable_get", rb_obj_ivar_get, 1);
+    rb_define_method(rb_mKernel, "instance_variable_set", rb_obj_ivar_set, 2);
     rb_define_private_method(rb_mKernel, "remove_instance_variable",
 			     rb_obj_remove_instance_variable, 1);