diff options
| -rw-r--r-- | mrbgems/mruby-fiber/src/fiber.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mrbgems/mruby-fiber/src/fiber.c b/mrbgems/mruby-fiber/src/fiber.c index 757eb235d..43cf76062 100644 --- a/mrbgems/mruby-fiber/src/fiber.c +++ b/mrbgems/mruby-fiber/src/fiber.c @@ -218,9 +218,15 @@ static mrb_value fiber_yield(mrb_state *mrb, mrb_value self) { struct mrb_context *c = mrb->c; + mrb_callinfo *ci; mrb_value *a; - int len; + int i, len; + for (ci = c->ci; ci >= c->cibase; ci--) { + if (ci->acc < 0) { + mrb_raise(mrb, E_ARGUMENT_ERROR, "can't cross C function boundary"); + } + } if (!c->prev) { mrb_raise(mrb, E_ARGUMENT_ERROR, "can't yield from root fiber"); } |