[swift-dev] swift module format

[Slava Pestov]

> On Aug 24, 2017, at 10:56 PM, John McCall via swift-dev <swift-dev at swift.org> wrote:
> 
> Or if you really want to avoid the FFI, you could take our current ASTDumper output, which is currently pseudo-machine-readable, and make it actually machine-readable.  The elegant approach there would be to take the entire dumper and remove its pervasive dependence on an output stream; instead, it would be rewritten to make calls on a SAX-like streaming interface, and there would just be a standard implementation that formatted things as XML / JSON / our weird s-expression format.

… I would love it if ASTDumper supported a Clang-like tree view in addition to (or instead of, if we also get JSON output?) the faux s-expression output. I know I’m supposed to like Lisp, but I personally find our dump output rather hard to read.

Slava
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