On Nov 28, 2010, at 10:19 AM, Chris Lattner wrote:

> 
> On Nov 24, 2010, at 3:21 AM, John McCall wrote:
> 
>> Author: rjmccall
>> Date: Wed Nov 24 05:21:45 2010
>> New Revision: 120088
>> 
>> URL: http://llvm.org/viewvc/llvm-project?rev=120088&view=rev
>> Log:
>> Add -cc1 -ast-dump-xml, an excessively detailed XML dump of the internals
>> of the ASTs.  Only available in assertions builds.  No stability guarantee.
>> 
>> This is intended solely as a debugging tool.  I'm not sure if the goals
>> are sufficiently aligned with the XML printer to allow a common
>> implementation.
>> 
>> Currently just falls back on the StmtDumper to display statements,
>> which means it doesn't produce valid XML in those cases.
> 
> I'm a bit dubious about this given the struggles we've had with the current 
> XML dumper.  Please document somewhere that the output isn't guaranteed to be 
> stable.

Can you elaborate on those struggles?  It seems to mostly be unmaintained.

I would like this to eventually replace -dump-ast, if we can agree on a syntax; 
 -dump-ast is nice for expressions, but useless for declarations.

I am not wedded to XML, but there are much better visualization / exploration 
tools for XML than for not-really s-exprs. :)

>  Also, why only in assert builds?  We have no precedent for that.

Since it's just a debugging tool, I didn't want to pay for the code size in 
release.  If you tell me not to sweat it, I won't. :)

John.
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