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Code Issues 1 Releases Wiki Activity

Add signal and fiber/can-resume?.

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These additions, along with the change that user signals 0-4 cannot
be resumed, allow delimited continuation semantics, while repsecting
existing forms like `defer`, `with`, `with-vars`, etc.
This commit is contained in:
Calvin Rose
2020-02-23 13:31:27 -06:00
parent 20d5d560f3
commit 6a13703e32
4 changed files with 61 additions and 7 deletions
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src/core/vm.c
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@@ -1249,6 +1249,7 @@ JanetSignal janet_continue(JanetFiber *fiber, Janet in, Janet *out) {
}
if (old_status == JANET_STATUS_ALIVE ||
old_status == JANET_STATUS_DEAD ||
(old_status >= JANET_STATUS_USER0 && old_status <= JANET_STATUS_USER4) ||
old_status == JANET_STATUS_ERROR) {
const uint8_t *str = janet_formatc("cannot resume fiber with status :%s",
janet_status_names[old_status]);