diff options
Diffstat (limited to 'variable.c')
| -rw-r--r-- | variable.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/variable.c b/variable.c index 62256a049e..722c021c59 100644 --- a/variable.c +++ b/variable.c @@ -313,6 +313,27 @@ rb_class2name(VALUE klass) return RSTRING_PTR(rb_class_name(klass)); } +/*! + * \internal + * Same as rb_class2name but safe if during GC + * + * \post the returned pointer points a string. not NULL. + */ +const char * +rb_class2name_without_alloc(VALUE klass) +{ + if (RCLASS_IV_TBL(klass)) { + st_data_t n; + if (st_lookup(RCLASS_IV_TBL(klass), (st_data_t)classpath, &n) || + st_lookup(RCLASS_IV_TBL(klass), (st_data_t)classid, &n) || + st_lookup(RCLASS_IV_TBL(klass), (st_data_t)tmp_classpath, &n)) { + if (TYPE(n) != T_STRING) rb_bug("class path is not set properly"); + return RSTRING_PTR(n); + } + } + return "(anonymous)"; +} + const char * rb_obj_classname(VALUE obj) { |