diff options
Diffstat (limited to 'enumerator.c')
| -rw-r--r-- | enumerator.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/enumerator.c b/enumerator.c index a930c2bfa6..0801517657 100644 --- a/enumerator.c +++ b/enumerator.c @@ -56,7 +56,7 @@ enumerator_ptr(VALUE obj) "wrong argument type %s (expected %s)", rb_obj_classname(obj), rb_class2name(rb_cEnumerator)); } - if (!ptr) { + if (!ptr || ptr->obj == Qundef) { rb_raise(rb_eArgError, "uninitialized enumerator"); } return ptr; @@ -204,8 +204,13 @@ static VALUE enumerator_allocate(VALUE klass) { struct enumerator *ptr; - return Data_Make_Struct(klass, struct enumerator, - enumerator_mark, -1, ptr); + VALUE enum_obj; + + enum_obj = Data_Make_Struct(klass, struct enumerator, + enumerator_mark, -1, ptr); + ptr->obj = Qundef; + + return enum_obj; } static VALUE @@ -217,7 +222,13 @@ enumerator_each_i(VALUE v, VALUE enum_obj, int argc, VALUE *argv) static VALUE enumerator_init(VALUE enum_obj, VALUE obj, VALUE meth, int argc, VALUE *argv) { - struct enumerator *ptr = enumerator_ptr(enum_obj); + struct enumerator *ptr; + + Data_Get_Struct(enum_obj, struct enumerator, ptr); + + if (!ptr) { + rb_raise(rb_eArgError, "unallocated enumerator"); + } ptr->obj = obj; ptr->meth = rb_to_id(meth); @@ -237,8 +248,7 @@ enumerator_init(VALUE enum_obj, VALUE obj, VALUE meth, int argc, VALUE *argv) * used as an Enumerable object using the given object's given * method with the given arguments. * - * Use of this method is not discouraged. Use Kernel#enum_for() - * instead. + * Use of this method is discouraged. Use Kernel#enum_for() instead. */ static VALUE enumerator_initialize(int argc, VALUE *argv, VALUE obj) |