pub fn call_site_text(vm: &VM) -> Option<String>Expand description
Rewrite a <subject> is not a function / is not a constructor message with
the SOURCE TEXT of the callee at the currently executing op, as V8 does.
subject is what the raising code named — the method name, or the callee’s
rendered value. The message’s own subject must END WITH it, which is the
guard that keeps an unrelated error raised deeper inside a native method from
being relabelled with this call’s text. (A native dispatcher may prefix its
own receiver word, e.g. map.get is not a function, so the whole subject is
replaced rather than trimmed by length.)
Returns the message unchanged when no site was recorded, so a shape the
printer declines to print keeps the old wording rather than an invented one.
The source text recorded for the op currently executing, if any. vm.ip has
already advanced past it.