[JSR308] annotations on expressions and literal values

[Michael Ernst]

> Object result = engine.eval(
>     "fib(num);" +
>     "function fib(n) {" +
>     "  if(n <= 1) return n; " +
>     "  return fib(n-1) + fib(n-2); " +
>     "};" @Script("JavaScript"),
>     bindings);

Annotations on types already permit this this using a cast:

Object result = engine.eval(
    (@Script("JavaScript") String)       // <--- this is the cast
    "fib(num);" +
    "function fib(n) {" +
    "  if(n <= 1) return n; " +
    "  return fib(n-1) + fib(n-2); " +
    "};",
    bindings);

One advantage of the cast syntax is that it does not introduce new syntax.

                    -Michael Ernst
                     mernst at csail.mit.edu