diff options
| author | Yukihiro "Matz" Matsumoto <[email protected]> | 2016-12-12 01:00:24 +0900 |
|---|---|---|
| committer | Yukihiro "Matz" Matsumoto <[email protected]> | 2016-12-12 01:00:24 +0900 |
| commit | 761562b65f33f47a18eae2c5db26ec48818498fc (patch) | |
| tree | 3a42bd73b4292712586e164cd25971e52e075499 /src/variable.c | |
| parent | 92c843dd07211d698a6dac90fbd740e483ae34af (diff) | |
| download | mruby-761562b65f33f47a18eae2c5db26ec48818498fc.tar.gz mruby-761562b65f33f47a18eae2c5db26ec48818498fc.zip | |
freeze instance variables; ref #3340
Diffstat (limited to 'src/variable.c')
| -rw-r--r-- | src/variable.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/variable.c b/src/variable.c index 45dc055af..390da5455 100644 --- a/src/variable.c +++ b/src/variable.c @@ -489,6 +489,9 @@ mrb_obj_iv_set(mrb_state *mrb, struct RObject *obj, mrb_sym sym, mrb_value v) { iv_tbl *t = obj->iv; + if (MRB_FROZEN_P(obj)) { + mrb_raisef(mrb, E_RUNTIME_ERROR, "can't modify frozen %S", mrb_obj_value(obj)); + } if (!t) { t = obj->iv = iv_new(mrb); } |