Am 23.12.2018 um 17:09 schrieb J. Gareth Moreton:
> Hi everyone,
> 
> I've developed a feature to output the compiler-generated node trees into XML 
> files that could prove useful for
> debugging purposes.  While the ability to print the nodes to the console or a 
> log file already exist, it gets buried
> especially if the System unit has its nodes output (the XML file it generated 
> for me is 4.8 MB in size!).
> 
> I plan to use this to help me debug and analyse code paths for the "pure" 
> feature that's been on my table for a while,
> and it might help with debugging in general.  I figure it's a bit more 
> convenient than a console output because you can
> open the file afterwards in Notepad++ or some other editor that can handle 
> XML files (which I hope are valid!!) and
> hence visually open and close branches.
> 
> Note that it is currently very much a work in progress and hasn't been fully 
> tested, and reuses a lot of features like
> the "printnodeindent" variable and an error message if it fails to access a 
> file.
> 
> To activate, specify the "-Cm" command line parameter (I wanted either "-Cn" 
> or "-Ci", for 'node' and 'intermediate'
> respectively, but both are taken!).  It's not documented at present, 
> especially as it might be rejected or changed.  The
> XML files have .ppx extensions and are placed in the output directory.  Let 
> me know how it works out for you.

While I like the possibility to output the node tree as xml, I do not think 
that it should be exposed to users by
command line switches. Instead, if the compiler is compiled with a certain 
define, it could generate xml node tree output.

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