We'll need to figure out an efficient way to do this in JS output.
An alternative, suggested by Jacob, is only provide something like an applyTruncated function. E.g., something like:
dynamic applyTruncated(Function f, List args) {
var arity = getArity(f);
assert(args.length >= arity.min);
args = args.sublist(0, arity.max);
return Function.apply(f, args);
}
Jacob: is this what you have in mind?
If so, we could *only* provide this. The dart2j impl could use the existing code pattern of is-checks. The ddc implementation could map to JS apply (with a check for named params?).
Thoughts?
R=jacobr@google.com
Review URL: https://chromereviews.googleplex.com/137047014
Vijay Menon
20cf4c9c4b