bool
js::XDRInterpretedFunction(XDRState<mode> *xdr, HandleObject enclosingScope, HandleScript enclosingScript,
MutableHandleObject objp)
{
/* NB: Keep this in sync with CloneInterpretedFunction. */
Rooted<JSAtom*> atom(xdr->cx());
uint32_t firstword; /* flag telling whether fun->atom is non-null,
plus for fun->u.i.skipmin, fun->u.i.wrapper,
and 14 bits reserved for future use */
uint32_t flagsword; /* word for argument count and fun->flags */
JSContext *cx = xdr->cx();
RootedFunction fun(cx);
JSScript *script;
if (mode == XDR_ENCODE) {
fun = objp->toFunction();
if (!fun->isInterpreted()) {
JSAutoByteString funNameBytes;
if (const char *name = GetFunctionNameBytes(cx, fun, &funNameBytes)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_NOT_SCRIPTED_FUNCTION,
name);
}
return false;
}
firstword = !!fun->atom;
flagsword = (fun->nargs << 16) | fun->flags;
atom = fun->atom;
script = fun->script();
} else {
RootedObject parent(cx, NULL);
fun = js_NewFunction(cx, NULL, NULL, 0, JSFUN_INTERPRETED, parent, NULL);
if (!fun)
return false;
if (!JSObject::clearParent(cx, fun))
return false;
if (!JSObject::clearType(cx, fun))
return false;
atom = NULL;
script = NULL;
}
if (!xdr->codeUint32(&firstword))
return false;
if ((firstword & 1U) && !XDRAtom(xdr, atom.address()))
return false;
if (!xdr->codeUint32(&flagsword))
return false;
if (!XDRScript(xdr, enclosingScope, enclosingScript, fun, &script))
return false;
if (mode == XDR_DECODE) {
fun->nargs = flagsword >> 16;
fun->flags = uint16_t(flagsword);
fun->atom.init(atom);
fun->initScript(script);
script->setFunction(fun);
if (!fun->setTypeForScriptedFunction(cx))
return false;
JS_ASSERT(fun->nargs == fun->script()->bindings.numArgs());
js_CallNewScriptHook(cx, fun->script(), fun);
objp.set(fun);
}
