Rhino and Javascript 1.8?
I don't know about JavaScript 1.8, but I know they are actively working on ECMAScript 5 support. The RingoJS project (formerly Helma NG) has a custom branch that implements some of the new features from 1.8 and ECMAScript 5. For example, it supports ( f = function(x) 2 * x;
instead of f = function(x) { return 2 * x; }
) , JSON.stringify/parse
and Object.create/seal/freeze
.
I'm sure Mozilla would welcome any help moving to 1.8, but I am not aware of any projects currently working on this.
a source to share
SpiderMonkey runs JS 1.8 but is implemented in C instead of Java, not sure if this matters to you.
a source to share