[antlr-interest] caching AST and parsed information

[daniel_raichle]

Hi,

I am using antlr to instrument multiple (small) C-files automatically
with Monty's C-grammar.

Now I have the problem that all of my C-files include a file called
"temp.h" in which some macros are defined and which includes some
other project specific .h-files and some standard .h-files (eg.
stdio.h, math.h, ...). Because of the macros and typedefs in the
project-specific .h-files I am using a preprocessor before parsing
with antlr and I am getting very large files because of all the
includes, mainly the standard .h-files. Therefore parsing those files
is very slow.

Now my thoughts are: as all of my C-files only include this single
.h-file, I could possibly parse the temp.h file first and then cache
all the informations, antlr has parsed up to this point. After that I
could parse my c-files directly without using a preprocessor before
and ignoring the #include "temp.h"-directive.

How could I do that? Is this possible with antlr?

Thanks,
Daniel Raichle


 

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