Matthias Kramm wrote:
I'll probably define myself some C macros so that I can at least
write something like
E = E '+' E {pass2only append($1);append($3);append(OP_ADD);}
.
But it would of course be more nifty if the default behaviour
"execute an action only if the pass is 2" could be placed
somewhere central.
You really want a bison equivalent of flex's YY_USER_ACTION, but I don't
think there is one. You could hack the bison output if you're desperate
- maybe something in/around YY_REDUCE_PRINT.
Any pointers to a pure C AST implementation, by any chance?
There's a C runtime for Antlr, so I guess all the AST code has C
versions as well - I don't think it existed when I needed it. The C++
version has ~80 .hpp and .cpp files for the AST bits (I think I found it
in a lib directory somewhere in the source tree).
-Evan
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