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-rw-r--r--range.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/range.c b/range.c
index 99fdf9c..ebd0811 100644
--- a/range.c
+++ b/range.c
@@ -82,6 +82,15 @@ rb_range_new(VALUE beg, VALUE end, int exclude_end)
return range;
}
+static void
+range_modify(VALUE range)
+{
+ /* Ranges are immutable, so that they should be initialized only once. */
+ if (RANGE_EXCL(range) != Qnil) {
+ rb_name_error(idInitialize, "`initialize' called twice");
+ }
+}
+
/*
* call-seq:
* Range.new(begin, end, exclude_end=false) -> rng
@@ -97,15 +106,19 @@ range_initialize(int argc, VALUE *argv, VALUE range)
VALUE beg, end, flags;
rb_scan_args(argc, argv, "21", &beg, &end, &flags);
- /* Ranges are immutable, so that they should be initialized only once. */
- if (RANGE_EXCL(range) != Qnil) {
- rb_name_error(idInitialize, "`initialize' called twice");
- }
+ range_modify(range);
range_init(range, beg, end, RBOOL(RTEST(flags)));
return Qnil;
}
-#define range_initialize_copy rb_struct_init_copy /* :nodoc: */
+/* :nodoc: */
+static VALUE
+range_initialize_copy(VALUE range, VALUE orig)
+{
+ range_modify(range);
+ rb_struct_init_copy(range, orig);
+ return range;
+}
/*
* call-seq:
@@ -1244,6 +1257,7 @@ range_loader(VALUE range, VALUE obj)
rb_raise(rb_eTypeError, "not a dumped range object");
}
+ range_modify(range);
RANGE_SET_BEG(range, rb_ivar_get(obj, id_beg));
RANGE_SET_END(range, rb_ivar_get(obj, id_end));
RANGE_SET_EXCL(range, rb_ivar_get(obj, id_excl));