/* Preprocess and output. */
void
preprocess_file (cpp_reader *pfile)
{
/* A successful cpp_read_main_file guarantees that we can call
cpp_scan_nooutput or cpp_get_token next. */
if (flag_no_output && pfile->buffer)
{
/* Scan -included buffers, then the main file. */
while (pfile->buffer->prev)
cpp_scan_nooutput (pfile);
cpp_scan_nooutput (pfile);
}
else if (cpp_get_options (pfile)->traditional)
scan_translation_unit_trad (pfile);
else if (cpp_get_options (pfile)->directives_only
&& !cpp_get_options (pfile)->preprocessed)
scan_translation_unit_directives_only (pfile);
else
scan_translation_unit (pfile);
/* -dM command line option. Should this be elsewhere? */
if (flag_dump_macros == 'M')
cpp_forall_identifiers (pfile, dump_macro, NULL);
/* Flush any pending output. */
if (print.printed)
putc ('\n', print.outf);
}
/* This is called at the end of preprocessing. It pops the last
buffer and writes dependency output.
Maybe it should also reset state, such that you could call
cpp_start_read with a new filename to restart processing. */
void
cpp_finish (cpp_reader *pfile, FILE *deps_stream)
{
/* Warn about unused macros before popping the final buffer. */
if (CPP_OPTION (pfile, warn_unused_macros))
cpp_forall_identifiers (pfile, _cpp_warn_if_unused_macro, NULL);
/* lex.c leaves the final buffer on the stack. This it so that
it returns an unending stream of CPP_EOFs to the client. If we
popped the buffer, we'd dereference a NULL buffer pointer and
segfault. It's nice to allow the client to do worry-free excess
cpp_get_token calls. */
while (pfile->buffer)
_cpp_pop_buffer (pfile);
if (CPP_OPTION (pfile, deps.style) != DEPS_NONE
&& deps_stream)
{
deps_write (pfile->deps, deps_stream, 72);
if (CPP_OPTION (pfile, deps.phony_targets))
deps_phony_targets (pfile->deps, deps_stream);
}
/* Report on headers that could use multiple include guards. */
if (CPP_OPTION (pfile, print_include_names))
_cpp_report_missing_guards (pfile);
}
