Re: Compiling Java 9

[Alex Buckley]

On 11/16/2016 2:26 PM, Stephan Herrmann wrote:

And we may safely assume regularity of the grammar, i.e.,
the above approach will never lead to ambiguities, right?

Fictitious counter example

    ModuleDeclaration:
      module open Identifier ModuleBody;
      module Identifier ModuleBody;

With this the second token could be keyword or identifier, and we're
stuck, aren't we?

May we assume that the grammar will not be extended in such ambiguous ways?

There is already a production like this:

ModuleStatement:
  requires transitive ModuleName ;
  requires ModuleName ;

Alex