Method: StringIO#initialize_copy

Defined in:
ext/stringio/stringio.c

#initialize_copy(orig) ⇒ Object

:nodoc:



618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
 
# File 'ext/stringio/stringio.c', line 618

static VALUE
strio_copy(VALUE copy, VALUE orig)
{
    struct StringIO *ptr, *old_ptr;
    VALUE old_string = Qundef;

    orig = rb_convert_type(orig, T_DATA, "StringIO", "to_strio");
    if (copy == orig) return copy;
    ptr = StringIO(orig);
    old_ptr = check_strio(copy);
    if (old_ptr) {
	old_string = old_ptr->string;
	strio_free(old_ptr);
    }
    DATA_PTR(copy) = ptr;
    RB_OBJ_WRITTEN(copy, old_string, ptr->string);
    RBASIC(copy)->flags &= ~STRIO_READWRITE;
    RBASIC(copy)->flags |= RBASIC(orig)->flags & STRIO_READWRITE;
    ++ptr->count;
    return copy;
}