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Code Issues 1 Releases Wiki Activity

Registering an abstract type is idemptotent.

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This commit is contained in:
Calvin Rose 2020-10-06 19:11:29 -05:00
parent 5c05dec65a
commit ebfa07f8ce
1 changed files with 2 additions and 1 deletions
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3
src/core/util.c
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@ -449,7 +449,8 @@ void janet_cfuns(JanetTable *env, const char *regprefix, const JanetReg *cfuns)
void janet_register_abstract_type(const JanetAbstractType *at) {
Janet sym = janet_csymbolv(at->name);
if (!(janet_checktype(janet_table_get(janet_vm_abstract_registry, sym), JANET_NIL))) {
Janet check = janet_table_get(janet_vm_abstract_registry, sym);
if (!janet_checktype(check, JANET_NIL) && at != janet_unwrap_pointer(check)) {
janet_panicf("cannot register abstract type %s, "
"a type with the same name exists", at->name);
}