/* Mainly the interface between cpplib and the C front ends.
Copyright (C) 1987, 1988, 1989, 1992, 1994, 1995, 1996, 1997
- 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
Free Software Foundation, Inc.
This file is part of GCC.
int pending_lang_change; /* If we need to switch languages - C++ only */
int c_header_level; /* depth in C headers - C++ only */
-/* If we need to translate characters received. This is tri-state:
- 0 means use only the untranslated string; 1 means use only
- the translated string; -1 means chain the translated string
- to the untranslated one. */
-int c_lex_string_translate = 1;
-
-/* True if strings should be passed to the caller of c_lex completely
- unmolested (no concatenation, no translation). */
-bool c_lex_return_raw_strings = false;
-
static tree interpret_integer (const cpp_token *, unsigned int);
static tree interpret_float (const cpp_token *, unsigned int);
static tree interpret_fixed (const cpp_token *, unsigned int);
(unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT, unsigned int);
static enum integer_type_kind narrowest_signed_type
(unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT, unsigned int);
-static enum cpp_ttype lex_string (const cpp_token *, tree *, bool);
+static enum cpp_ttype lex_string (const cpp_token *, tree *, bool, bool);
static tree lex_charconst (const cpp_token *);
static void update_header_times (const char *);
static int dump_one_header (splay_tree_node, void *);
int parsing_args)
{
if (token->type != CPP_EOF && !parsing_args)
-#ifdef USE_MAPPED_LOCATION
input_location = token->src_loc;
-#else
- {
- source_location loc = token->src_loc;
- const struct line_map *map = linemap_lookup (&line_table, loc);
- input_line = SOURCE_LINE (map, loc);
- }
-#endif
}
void
we already did in compile_file. */
if (!MAIN_FILE_P (new_map))
{
-#ifdef USE_MAPPED_LOCATION
int included_at = LAST_SOURCE_LINE_LOCATION (new_map - 1);
- input_location = included_at;
- push_srcloc (new_map->start_location);
-#else
- int included_at = LAST_SOURCE_LINE (new_map - 1);
-
- input_line = included_at;
- push_srcloc (new_map->to_file, 1);
-#endif
+ input_location = new_map->start_location;
(*debug_hooks->start_source_file) (included_at, new_map->to_file);
#ifndef NO_IMPLICIT_EXTERN_C
if (c_header_level)
--pending_lang_change;
}
#endif
- pop_srcloc ();
+ input_location = new_map->start_location;
(*debug_hooks->end_source_file) (new_map->to_line);
}
update_header_times (new_map->to_file);
in_system_header = new_map->sysp != 0;
-#ifdef USE_MAPPED_LOCATION
input_location = new_map->start_location;
-#else
- input_filename = new_map->to_file;
- input_line = new_map->to_line;
-#endif
}
static void
{
const unsigned char *space, *name;
const cpp_token *s;
-#ifndef USE_MAPPED_LOCATION
- location_t fe_loc;
- const struct line_map *map = linemap_lookup (&line_table, loc);
- fe_loc.file = map->to_file;
- fe_loc.line = SOURCE_LINE (map, loc);
-#else
location_t fe_loc = loc;
-#endif
space = name = (const unsigned char *) "";
s = cpp_get_token (pfile);
static void
cb_define (cpp_reader *pfile, source_location loc, cpp_hashnode *node)
{
- const struct line_map *map = linemap_lookup (&line_table, loc);
+ const struct line_map *map = linemap_lookup (line_table, loc);
(*debug_hooks->define) (SOURCE_LINE (map, loc),
(const char *) cpp_macro_definition (pfile, node));
}
cb_undef (cpp_reader * ARG_UNUSED (pfile), source_location loc,
cpp_hashnode *node)
{
- const struct line_map *map = linemap_lookup (&line_table, loc);
+ const struct line_map *map = linemap_lookup (line_table, loc);
(*debug_hooks->undef) (SOURCE_LINE (map, loc),
(const char *) NODE_NAME (node));
}
non-NULL. */
enum cpp_ttype
-c_lex_with_flags (tree *value, location_t *loc, unsigned char *cpp_flags)
+c_lex_with_flags (tree *value, location_t *loc, unsigned char *cpp_flags,
+ int lex_flags)
{
static bool no_more_pch;
const cpp_token *tok;
timevar_push (TV_CPP);
retry:
- tok = cpp_get_token (parse_in);
+ tok = cpp_get_token_with_location (parse_in, loc);
type = tok->type;
retry_after_at:
-#ifdef USE_MAPPED_LOCATION
- *loc = tok->src_loc;
-#else
- *loc = input_location;
-#endif
switch (type)
{
case CPP_PADDING:
/* An @ may give the next token special significance in Objective-C. */
if (c_dialect_objc ())
{
- location_t atloc = input_location;
+ location_t atloc = *loc;
+ location_t newloc;
retry_at:
- tok = cpp_get_token (parse_in);
+ tok = cpp_get_token_with_location (parse_in, &newloc);
type = tok->type;
switch (type)
{
case CPP_STRING:
case CPP_WSTRING:
- type = lex_string (tok, value, true);
+ type = lex_string (tok, value, true, true);
break;
case CPP_NAME:
default:
/* ... or not. */
error ("%Hstray %<@%> in program", &atloc);
+ *loc = newloc;
goto retry_after_at;
}
break;
case CPP_STRING:
case CPP_WSTRING:
- if (!c_lex_return_raw_strings)
+ if ((lex_flags & C_LEX_RAW_STRINGS) == 0)
{
- type = lex_string (tok, value, false);
+ type = lex_string (tok, value, false,
+ (lex_flags & C_LEX_STRING_NO_TRANSLATE) == 0);
break;
}
*value = build_string (tok->val.str.len, (const char *) tok->val.str.text);
we must arrange to provide. */
static enum cpp_ttype
-lex_string (const cpp_token *tok, tree *valp, bool objc_string)
+lex_string (const cpp_token *tok, tree *valp, bool objc_string, bool translate)
{
tree value;
bool wide = false;
warning (OPT_Wtraditional,
"traditional C rejects string constant concatenation");
- if ((c_lex_string_translate
+ if ((translate
? cpp_interpret_string : cpp_interpret_string_notranslate)
(parse_in, strs, concats + 1, &istr, wide))
{
value = build_string (istr.len, (const char *) istr.text);
free (CONST_CAST (unsigned char *, istr.text));
-
- if (c_lex_string_translate == -1)
- {
- int xlated = cpp_interpret_string_notranslate (parse_in, strs,
- concats + 1,
- &istr, wide);
- /* Assume that, if we managed to translate the string above,
- then the untranslated parsing will always succeed. */
- gcc_assert (xlated);
-
- if (TREE_STRING_LENGTH (value) != (int) istr.len
- || 0 != strncmp (TREE_STRING_POINTER (value),
- (const char *) istr.text, istr.len))
- {
- /* Arrange for us to return the untranslated string in
- *valp, but to set up the C type of the translated
- one. */
- *valp = build_string (istr.len, (const char *) istr.text);
- valp = &TREE_CHAIN (*valp);
- }
- free (CONST_CAST (unsigned char *, istr.text));
- }
}
else
{
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