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Thanks! I forgot Shumway. Last I heard it was competitive with the Flash runtime (better on some stuff, worse on others), so that seems like a clear counterexam

by azakai 12y ago

Thanks! I forgot Shumway. Last I heard it was competitive with the Flash runtime (better on some stuff, worse on others), so that seems like a clear counterexample to mraleph's concern.

mraleph 12y ago
Isn't Shumway more of a confirmation for my concern than a counter example? Shumway is running ActionScript which is extremely close to JavaScript semantically though somewhat more strict and allows for optional typing.
- azakai 12y ago
  It agrees on numeric types, but it has very large differences like namespaces, classes, etc. Look at how complex the Shumway VM is.
  - kevingadd 12y ago
    AS3 also has things like pointers (via domain memory). The closest thing to that in current JS is asm.js.