void emitCreateCont(IRGS& env) {
auto const resumeOffset = nextBcOff(env);
assertx(!resumed(env));
assertx(curFunc(env)->isGenerator());
if (curFunc(env)->isAsyncGenerator()) PUNT(CreateCont-AsyncGenerator);
// Create the Generator object. CreateCont takes care of copying local
// variables and iterators.
auto const func = curFunc(env);
auto const resumeSk = SrcKey(func, resumeOffset, true);
auto const bind_data = LdBindAddrData { resumeSk, invSPOff(env) + 1 };
auto const resumeAddr = gen(env, LdBindAddr, bind_data);
auto const cont =
gen(env,
CreateCont,
fp(env),
cns(env, func->numSlotsInFrame()),
resumeAddr,
cns(env, resumeOffset));
// The suspend hook will decref the newly created generator if it throws.
auto const contAR =
gen(env,
LdContActRec,
IsAsyncData(curFunc(env)->isAsync()),
cont);
suspendHookE(env, fp(env), contAR, cont);
// Grab caller info from ActRec, free ActRec, store the return value
// and return control to the caller.
gen(env, StRetVal, fp(env), cont);
auto const ret_data = RetCtrlData { offsetToReturnSlot(env), false };
gen(env, RetCtrl, ret_data, sp(env), fp(env));
}
void emitCreateCont(HTS& env) {
auto const resumeOffset = nextBcOff(env);
assert(!resumed(env));
assert(curFunc(env)->isGenerator());
if (curFunc(env)->isAsyncGenerator()) PUNT(CreateCont-AsyncGenerator);
// Create the Generator object. CreateCont takes care of copying local
// variables and iterators.
auto const func = curFunc(env);
auto const resumeSk = SrcKey(func, resumeOffset, true);
auto const resumeAddr = gen(env, LdBindAddr, LdBindAddrData(resumeSk));
auto const cont =
gen(env,
CreateCont,
fp(env),
cns(env, func->numSlotsInFrame()),
resumeAddr,
cns(env, resumeOffset));
// The suspend hook will decref the newly created generator if it throws.
auto const contAR = gen(env, LdContActRec, cont);
suspendHookE(env, fp(env), contAR);
// Grab caller info from ActRec, free ActRec, store the return value
// and return control to the caller.
gen(env, StRetVal, fp(env), cont);
auto const retAddr = gen(env, LdRetAddr, fp(env));
auto const stack = gen(env, RetAdjustStack, fp(env));
auto const frame = gen(env, FreeActRec, fp(env));
gen(env, RetCtrl, RetCtrlData(false), stack, frame, retAddr);
}
