Re: Overcoming AST forward declaration (includes online example)

On 11/2/18 5:56 PM, Michael Powell wrote:
[snip]
 > Much of which is simply drawn from the Protobuf v2 specification on
 > its face. If there's a more elegant or better way to do that, I'm open
 > to suggestions.
 >
 > 
https://developers.google.com/protocol-buffers/docs/reference/proto2-spec#fields
 >

The goal of the suggested simplification is not to solve,
immediately, your ultimate goal of a parser for the
proto2-spec#fields, it is to understand why the qi parser is
failing to compile the current version of a necessarily
complicated grammar for the proto2-spec#fields.  By doing
the suggested simplification and trying to compile the
simplifications, you'll narrow down the cause of the problem
for the full grammar and, hopefully, you might be able to
see a solution.

The problem solution method of simplifying the grammar has
been suggested many times before on this mailing list.

 > But this is not my block right now. My block is the MessageBlock
 > forward declaration, or, rather, how to solve that issue.

You'd have a better chance of removing that block if you
narrowed down the cause of the block by simplifying the
grammar to the smallest subgrammar that reproduces the
problem.

-regards,
Larry