cpp_buffer *buffer = pfile->buffer;
enum lc_reason reason = LC_RENAME;
unsigned long new_lineno;
- unsigned int cap;
+ unsigned int cap, sysp = pfile->map->sysp;
cpp_token token;
/* C99 raised the minimum limit on #line numbers. */
cpp_get_token (pfile, &token);
if (token.type == CPP_STRING)
{
- const char *fname = (const char *) token.val.str.text;
+ buffer->nominal_fname = (const char *) token.val.str.text;
/* Only accept flags for the # 55 form. */
- if (! pfile->state.line_extension)
- check_eol (pfile);
- else
+ if (pfile->state.line_extension)
{
- int flag = 0, sysp = 0;
+ int flag;
- flag = read_flag (pfile, flag);
+ sysp = 0;
+ flag = read_flag (pfile, 0);
if (flag == 1)
{
reason = LC_ENTER;
+ /* Fake an include for cpp_included (). */
+ _cpp_fake_include (pfile, buffer->nominal_fname);
flag = read_flag (pfile, flag);
}
else if (flag == 2)
sysp = 1;
flag = read_flag (pfile, flag);
if (flag == 4)
- sysp = 2, read_flag (pfile, flag);
- }
-
- if (reason == LC_ENTER)
- {
- /* Fake a buffer stack for diagnostics. */
- cpp_push_buffer (pfile, 0, 0, BUF_FAKE, fname, 0);
- /* Fake an include for cpp_included. */
- _cpp_fake_include (pfile, fname);
- buffer = pfile->buffer;
- }
- else if (reason == LC_LEAVE)
- {
- if (buffer->type != BUF_FAKE)
- {
- cpp_warning (pfile, "file \"%s\" left but not entered",
- buffer->nominal_fname);
- reason = LC_RENAME;
- }
- else
- {
- _cpp_pop_buffer (pfile);
- pfile->lexer_pos.output_line++;
- buffer = pfile->buffer;
-#ifdef ENABLE_CHECKING
- if (strcmp (buffer->nominal_fname, fname))
- cpp_warning (pfile, "expected to return to file \"%s\"",
- buffer->nominal_fname);
- if (buffer->sysp != sysp)
- cpp_warning (pfile, "header flags for \"%s\" have changed",
- buffer->nominal_fname);
-#endif
- }
+ sysp = 2;
}
- buffer->sysp = sysp;
}
- buffer->nominal_fname = fname;
+ check_eol (pfile);
}
else if (token.type != CPP_EOF)
{
}
end_directive (pfile, 1);
- _cpp_do_file_change (pfile, reason, new_lineno);
+ _cpp_do_file_change (pfile, reason, (const char *) buffer->nominal_fname,
+ new_lineno, sysp);
}
/* Arrange the file_change callback. pfile->line has changed to
- FILE_LINE of the current buffer, for reason REASON. */
+ FILE_LINE of TO_FILE, for reason REASON. SYSP is 1 for a system
+ header, 2 for a sytem header that needs to be extern "C" protected,
+ and zero otherwise. */
void
-_cpp_do_file_change (pfile, reason, file_line)
+_cpp_do_file_change (pfile, reason, to_file, file_line, sysp)
cpp_reader *pfile;
enum lc_reason reason;
+ const char *to_file;
unsigned int file_line;
+ unsigned int sysp;
{
- cpp_buffer *buffer;
-
- buffer = pfile->buffer;
- pfile->map = add_line_map (&pfile->line_maps, reason,
- pfile->line, buffer->nominal_fname, file_line);
+ pfile->map = add_line_map (&pfile->line_maps, reason, sysp,
+ pfile->line, to_file, file_line);
if (pfile->cb.file_change)
- {
- cpp_file_change fc;
-
- fc.map = pfile->map;
- fc.line = pfile->line;
- fc.reason = reason;
- fc.sysp = buffer->sysp;
- fc.externc = CPP_OPTION (pfile, cplusplus) && buffer->sysp == 2;
-
- (*pfile->cb.file_change) (pfile, &fc);
- }
+ (*pfile->cb.file_change) (pfile, pfile->map);
}
/*
}
/* The line map set. */
-struct line_maps *
+const struct line_maps *
cpp_get_line_maps (pfile)
cpp_reader *pfile;
{
{
cpp_buffer *new = xobnew (&pfile->buffer_ob, cpp_buffer);
- if (type == BUF_FAKE)
- {
- /* A copy of the current buffer, just with a new name and type. */
- memcpy (new, pfile->buffer, sizeof (cpp_buffer));
- new->type = BUF_FAKE;
- }
- else
- {
- if (type == BUF_BUILTIN)
- filename = _("<builtin>");
- else if (type == BUF_CL_OPTION)
- filename = _("<command line>");
- else if (type == BUF_PRAGMA)
- filename = "<_Pragma>";
-
- /* Clears, amongst other things, if_stack and mi_cmacro. */
- memset (new, 0, sizeof (cpp_buffer));
-
- new->line_base = new->buf = new->cur = buffer;
- new->rlimit = buffer + len;
- new->sysp = 0;
-
- /* No read ahead or extra char initially. */
- new->read_ahead = EOF;
- new->extra_char = EOF;
-
- /* Preprocessed files, builtins, _Pragma and command line
- options don't do trigraph and escaped newline processing. */
- new->from_stage3 = type != BUF_FILE || CPP_OPTION (pfile, preprocessed);
- }
+ if (type == BUF_BUILTIN)
+ filename = _("<builtin>");
+ else if (type == BUF_CL_OPTION)
+ filename = _("<command line>");
+ else if (type == BUF_PRAGMA)
+ filename = "<_Pragma>";
+
+ /* Clears, amongst other things, if_stack and mi_cmacro. */
+ memset (new, 0, sizeof (cpp_buffer));
+
+ new->line_base = new->buf = new->cur = buffer;
+ new->rlimit = buffer + len;
+
+ /* No read ahead or extra char initially. */
+ new->read_ahead = EOF;
+ new->extra_char = EOF;
+
+ /* Preprocessed files, builtins, _Pragma and command line
+ options don't do trigraph and escaped newline processing. */
+ new->from_stage3 = type != BUF_FILE || CPP_OPTION (pfile, preprocessed);
if (*filename == '\0')
new->nominal_fname = _("<stdin>");
new->type = type;
new->prev = pfile->buffer;
new->pfile = pfile;
- new->include_stack_listed = 0;
new->return_at_eof = return_at_eof;
- pfile->state.next_bol = 1;
pfile->buffer_stack_depth++;
pfile->buffer = new;
_cpp_pop_buffer (pfile)
cpp_reader *pfile;
{
- cpp_buffer *buffer;
+ cpp_buffer *buffer = pfile->buffer;
struct if_stack *ifs;
- for (;;)
- {
- buffer = pfile->buffer;
- /* Walk back up the conditional stack till we reach its level at
- entry to this file, issuing error messages. */
- for (ifs = buffer->if_stack; ifs; ifs = ifs->next)
- cpp_error_with_line (pfile, ifs->pos.line, ifs->pos.col,
- "unterminated #%s", dtable[ifs->type].name);
-
- if (buffer->type == BUF_FAKE)
- {
- buffer->prev->cur = buffer->cur;
- buffer->prev->line_base = buffer->line_base;
- buffer->prev->read_ahead = buffer->read_ahead;
- }
- else if (buffer->type == BUF_FILE)
- _cpp_pop_file_buffer (pfile, buffer);
-
- pfile->buffer = buffer->prev;
- pfile->buffer_stack_depth--;
-
- /* Callbacks only generated for faked or real files. */
- if (buffer->type != BUF_FILE && buffer->type != BUF_FAKE)
- break;
-
- /* No callback for EOF of last file. */
- if (!pfile->buffer)
- break;
+ /* Walk back up the conditional stack till we reach its level at
+ entry to this file, issuing error messages. */
+ for (ifs = buffer->if_stack; ifs; ifs = ifs->next)
+ cpp_error_with_line (pfile, ifs->pos.line, ifs->pos.col,
+ "unterminated #%s", dtable[ifs->type].name);
- /* do_line does its own call backs. */
- pfile->buffer->include_stack_listed = 0;
- if (pfile->directive == &dtable[T_LINE])
- break;
+ /* Update the reader's buffer before _cpp_do_file_change. */
+ pfile->buffer = buffer->prev;
+ pfile->buffer_stack_depth--;
- _cpp_do_file_change (pfile, LC_LEAVE, pfile->buffer->return_to_line);
- if (pfile->buffer->type == BUF_FILE)
- break;
+ if (buffer->type == BUF_FILE)
+ {
+ /* Callbacks are not generated for popping the main file. */
+ if (buffer->prev)
+ _cpp_do_file_change (pfile, LC_LEAVE, 0, 0, 0);
- cpp_warning (pfile, "file \"%s\" entered but not left",
- buffer->nominal_fname);
+ _cpp_pop_file_buffer (pfile, buffer);
}
obstack_free (&pfile->buffer_ob, buffer);
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