interpreter/index.js
function exec(inst, raw, argv, event, fin) {
    var after = nextup(inst, raw, argv, event, fin);
    return step(inst, raw, argv, event, passthrough(after));
}
function exec(inst, raw, argv, event, fin) {
    var after = nextup(inst, raw, argv, event, fin);
    return step(inst, raw, argv, event, passthrough(after));
}
function exec ( inst , raw , argv , event , fin ) { var after = nextup ( inst , raw , argv , event , fin ) ; return step ( inst , raw , argv , event , passthrough ( after ) ) ; }
Recursively execute a list in the context of the passed-in instance.
Recursively execute a list in the context of the passed - in instance .