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wpp: Skip parsing #if expression if it's ignored anyway. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2018-11-09 20:50:15 +01:00 committed by Alexandre Julliard
parent e9e12bda62
commit bdea31c177
1 changed files with 5 additions and 1 deletions
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6
libs/wpp/ppl.l
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@ -150,6 +150,7 @@
%x pp_macexp
%x pp_if
%x pp_ifd
%x pp_ifignored
%x pp_endif
%x pp_line
%x pp_defined
@ -390,7 +391,7 @@ void pp_writestring(const char *format, ...)
<pp_pp>{ws}*undef{ws}* if(yy_top_state() != pp_ignore) {yy_pp_state(pp_ifd); return tUNDEF;} else {yy_pp_state(pp_eol);}
<pp_pp>{ws}*ifdef{ws}* yy_pp_state(pp_ifd); return tIFDEF;
<pp_pp>{ws}*ifndef{ws}* pp_incl_state.seen_junk--; yy_pp_state(pp_ifd); return tIFNDEF;
<pp_pp>{ws}*if{ws}* yy_pp_state(pp_if); return tIF;
<pp_pp>{ws}*if{ws}* if(yy_top_state() != pp_ignore) {yy_pp_state(pp_if);} else {yy_pp_state(pp_ifignored);} return tIF;
<pp_pp>{ws}*elif{ws}* yy_pp_state(pp_if); return tELIF;
<pp_pp>{ws}*else{ws}* yy_pp_state(pp_endif); return tELSE;
<pp_pp>{ws}*endif{ws}* yy_pp_state(pp_endif); return tENDIF;
@ -450,6 +451,9 @@ void pp_writestring(const char *format, ...)
<pp_if>\" ppy_error("String constants not allowed in conditionals");
<pp_if>. return *ppy_text;
<pp_ifignored>[^\n]+ ppy_lval.sint = 0; return tSINT;
<pp_ifignored>\n newline(1); yy_pop_state(); return tNL;
/*
* Handle #ifdef, #ifndef and #undef
* to get only an untranslated/unexpanded identifier