&& (!in_comment || warn_in_comment (pfile, note)))
{
if (CPP_OPTION (pfile, trigraphs))
- cpp_error_with_line (pfile, CPP_DL_WARNING, pfile->line_table->highest_line, col,
- "trigraph ??%c converted to %c",
- note->type,
- (int) _cpp_trigraph_map[note->type]);
+ cpp_warning_with_line (pfile, CPP_W_TRIGRAPHS,
+ pfile->line_table->highest_line, col,
+ "trigraph ??%c converted to %c",
+ note->type,
+ (int) _cpp_trigraph_map[note->type]);
else
{
- cpp_error_with_line
- (pfile, CPP_DL_WARNING, pfile->line_table->highest_line, col,
+ cpp_warning_with_line
+ (pfile, CPP_W_TRIGRAPHS,
+ pfile->line_table->highest_line, col,
"trigraph ??%c ignored, use -trigraphs to enable",
note->type);
}
}
}
+ else if (note->type == 0)
+ /* Already processed in lex_raw_string. */;
else
abort ();
}
&& cur[0] == '*' && cur[1] != '/')
{
buffer->cur = cur;
- cpp_error_with_line (pfile, CPP_DL_WARNING,
- pfile->line_table->highest_line, CPP_BUF_COL (buffer),
- "\"/*\" within comment");
+ cpp_warning_with_line (pfile, CPP_W_COMMENTS,
+ pfile->line_table->highest_line,
+ CPP_BUF_COL (buffer),
+ "\"/*\" within comment");
}
}
else if (c == '\n')
sz = cpp_spell_token (pfile, token, buf, false) - buf;
if (NORMALIZE_STATE_RESULT (s) == normalized_C)
- cpp_error_with_line (pfile, CPP_DL_WARNING, token->src_loc, 0,
- "`%.*s' is not in NFKC", (int) sz, buf);
+ cpp_warning_with_line (pfile, CPP_W_NORMALIZE, token->src_loc, 0,
+ "`%.*s' is not in NFKC", (int) sz, buf);
else
- cpp_error_with_line (pfile, CPP_DL_WARNING, token->src_loc, 0,
- "`%.*s' is not in NFC", (int) sz, buf);
+ cpp_warning_with_line (pfile, CPP_W_NORMALIZE, token->src_loc, 0,
+ "`%.*s' is not in NFC", (int) sz, buf);
}
}
return false;
}
+/* Helper function to get the cpp_hashnode of the identifier BASE. */
+static cpp_hashnode *
+lex_identifier_intern (cpp_reader *pfile, const uchar *base)
+{
+ cpp_hashnode *result;
+ const uchar *cur;
+ unsigned int len;
+ unsigned int hash = HT_HASHSTEP (0, *base);
+
+ cur = base + 1;
+ while (ISIDNUM (*cur))
+ {
+ hash = HT_HASHSTEP (hash, *cur);
+ cur++;
+ }
+ len = cur - base;
+ hash = HT_HASHFINISH (hash, len);
+ result = CPP_HASHNODE (ht_lookup_with_hash (pfile->hash_table,
+ base, len, hash, HT_ALLOC));
+
+ /* Rarely, identifiers require diagnostics when lexed. */
+ if (__builtin_expect ((result->flags & NODE_DIAGNOSTIC)
+ && !pfile->state.skipping, 0))
+ {
+ /* It is allowed to poison the same identifier twice. */
+ if ((result->flags & NODE_POISONED) && !pfile->state.poisoned_ok)
+ cpp_error (pfile, CPP_DL_ERROR, "attempt to use poisoned \"%s\"",
+ NODE_NAME (result));
+
+ /* Constraint 6.10.3.5: __VA_ARGS__ should only appear in the
+ replacement list of a variadic macro. */
+ if (result == pfile->spec_nodes.n__VA_ARGS__
+ && !pfile->state.va_args_ok)
+ cpp_error (pfile, CPP_DL_PEDWARN,
+ "__VA_ARGS__ can only appear in the expansion"
+ " of a C99 variadic macro");
+
+ /* For -Wc++-compat, warn about use of C++ named operators. */
+ if (result->flags & NODE_WARN_OPERATOR)
+ cpp_warning (pfile, CPP_W_CXX_OPERATOR_NAMES,
+ "identifier \"%s\" is a special operator name in C++",
+ NODE_NAME (result));
+ }
+
+ return result;
+}
+
+/* Get the cpp_hashnode of an identifier specified by NAME in
+ the current cpp_reader object. If none is found, NULL is returned. */
+cpp_hashnode *
+_cpp_lex_identifier (cpp_reader *pfile, const char *name)
+{
+ cpp_hashnode *result;
+ result = lex_identifier_intern (pfile, (uchar *) name);
+ return result;
+}
+
/* Lex an identifier starting at BUFFER->CUR - 1. */
static cpp_hashnode *
lex_identifier (cpp_reader *pfile, const uchar *base, bool starts_ucn,
/* For -Wc++-compat, warn about use of C++ named operators. */
if (result->flags & NODE_WARN_OPERATOR)
- cpp_error (pfile, CPP_DL_WARNING,
- "identifier \"%s\" is a special operator name in C++",
- NODE_NAME (result));
+ cpp_warning (pfile, CPP_W_CXX_OPERATOR_NAMES,
+ "identifier \"%s\" is a special operator name in C++",
+ NODE_NAME (result));
}
return result;
token->val.str.text = dest;
}
+/* Subroutine of lex_raw_string: Append LEN chars from BASE to the buffer
+ sequence from *FIRST_BUFF_P to LAST_BUFF_P. */
+
+static void
+bufring_append (cpp_reader *pfile, const uchar *base, size_t len,
+ _cpp_buff **first_buff_p, _cpp_buff **last_buff_p)
+{
+ _cpp_buff *first_buff = *first_buff_p;
+ _cpp_buff *last_buff = *last_buff_p;
+
+ if (first_buff == NULL)
+ first_buff = last_buff = _cpp_get_buff (pfile, len);
+ else if (len > BUFF_ROOM (last_buff))
+ {
+ size_t room = BUFF_ROOM (last_buff);
+ memcpy (BUFF_FRONT (last_buff), base, room);
+ BUFF_FRONT (last_buff) += room;
+ base += room;
+ len -= room;
+ last_buff = _cpp_append_extend_buff (pfile, last_buff, len);
+ }
+
+ memcpy (BUFF_FRONT (last_buff), base, len);
+ BUFF_FRONT (last_buff) += len;
+
+ *first_buff_p = first_buff;
+ *last_buff_p = last_buff;
+}
+
/* Lexes a raw string. The stored string contains the spelling, including
- double quotes, delimiter string, '[' and ']', any leading
+ double quotes, delimiter string, '(' and ')', any leading
'L', 'u', 'U' or 'u8' and 'R' modifier. It returns the type of the
literal, or CPP_OTHER if it was not properly terminated.
enum cpp_ttype type;
size_t total_len = 0;
_cpp_buff *first_buff = NULL, *last_buff = NULL;
+ _cpp_line_note *note = &pfile->buffer->notes[pfile->buffer->cur_note];
type = (*base == 'L' ? CPP_WSTRING :
*base == 'U' ? CPP_STRING32 :
{
switch (raw_prefix[raw_prefix_len])
{
- case ' ': case '[': case ']': case '\t':
+ case ' ': case '(': case ')': case '\\': case '\t':
case '\v': case '\f': case '\n': default:
break;
/* Basic source charset except the above chars. */
case 'Y': case 'Z':
case '0': case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
- case '_': case '{': case '}': case '#': case '(': case ')':
+ case '_': case '{': case '}': case '#': case '[': case ']':
case '<': case '>': case '%': case ':': case ';': case '.':
case '?': case '*': case '+': case '-': case '/': case '^':
case '&': case '|': case '~': case '!': case '=': case ',':
- case '\\': case '"': case '\'':
+ case '"': case '\'':
raw_prefix_len++;
continue;
}
break;
}
- if (raw_prefix[raw_prefix_len] != '[')
+ if (raw_prefix[raw_prefix_len] != '(')
{
int col = CPP_BUF_COLUMN (pfile->buffer, raw_prefix + raw_prefix_len)
+ 1;
cur = raw_prefix + raw_prefix_len + 1;
for (;;)
{
- cppchar_t c = *cur++;
+#define BUF_APPEND(STR,LEN) \
+ do { \
+ bufring_append (pfile, (const uchar *)(STR), (LEN), \
+ &first_buff, &last_buff); \
+ total_len += (LEN); \
+ } while (0);
+
+ cppchar_t c;
+
+ /* If we previously performed any trigraph or line splicing
+ transformations, undo them within the body of the raw string. */
+ while (note->pos < cur)
+ ++note;
+ for (; note->pos == cur; ++note)
+ {
+ switch (note->type)
+ {
+ case '\\':
+ case ' ':
+ /* Restore backslash followed by newline. */
+ BUF_APPEND (base, cur - base);
+ base = cur;
+ BUF_APPEND ("\\", 1);
+ after_backslash:
+ if (note->type == ' ')
+ {
+ /* GNU backslash whitespace newline extension. FIXME
+ could be any sequence of non-vertical space. When we
+ can properly restore any such sequence, we should mark
+ this note as handled so _cpp_process_line_notes
+ doesn't warn. */
+ BUF_APPEND (" ", 1);
+ }
- if (c == ']'
+ BUF_APPEND ("\n", 1);
+ break;
+
+ case 0:
+ /* Already handled. */
+ break;
+
+ default:
+ if (_cpp_trigraph_map[note->type])
+ {
+ /* Don't warn about this trigraph in
+ _cpp_process_line_notes, since trigraphs show up as
+ trigraphs in raw strings. */
+ uchar type = note->type;
+ note->type = 0;
+
+ if (!CPP_OPTION (pfile, trigraphs))
+ /* If we didn't convert the trigraph in the first
+ place, don't do anything now either. */
+ break;
+
+ BUF_APPEND (base, cur - base);
+ base = cur;
+ BUF_APPEND ("??", 2);
+
+ /* ??/ followed by newline gets two line notes, one for
+ the trigraph and one for the backslash/newline. */
+ if (type == '/' && note[1].pos == cur)
+ {
+ if (note[1].type != '\\'
+ && note[1].type != ' ')
+ abort ();
+ BUF_APPEND ("/", 1);
+ ++note;
+ goto after_backslash;
+ }
+ /* The ) from ??) could be part of the suffix. */
+ else if (type == ')'
+ && strncmp ((const char *) cur+1,
+ (const char *) raw_prefix,
+ raw_prefix_len) == 0
+ && cur[raw_prefix_len+1] == '"')
+ {
+ cur += raw_prefix_len+2;
+ goto break_outer_loop;
+ }
+ else
+ {
+ /* Skip the replacement character. */
+ base = ++cur;
+ BUF_APPEND (&type, 1);
+ }
+ }
+ else
+ abort ();
+ break;
+ }
+ }
+ c = *cur++;
+
+ if (c == ')'
&& strncmp ((const char *) cur, (const char *) raw_prefix,
raw_prefix_len) == 0
&& cur[raw_prefix_len] == '"')
break;
}
- /* raw strings allow embedded non-escaped newlines, which
- complicates this routine a lot. */
- if (first_buff == NULL)
- {
- total_len = cur - base;
- first_buff = last_buff = _cpp_get_buff (pfile, total_len);
- memcpy (BUFF_FRONT (last_buff), base, total_len);
- raw_prefix = BUFF_FRONT (last_buff) + (raw_prefix - base);
- BUFF_FRONT (last_buff) += total_len;
- }
- else
- {
- size_t len = cur - base;
- size_t cur_len = len > BUFF_ROOM (last_buff)
- ? BUFF_ROOM (last_buff) : len;
-
- total_len += len;
- memcpy (BUFF_FRONT (last_buff), base, cur_len);
- BUFF_FRONT (last_buff) += cur_len;
- if (len > cur_len)
- {
- last_buff = _cpp_append_extend_buff (pfile, last_buff,
- len - cur_len);
- memcpy (BUFF_FRONT (last_buff), base + cur_len,
- len - cur_len);
- BUFF_FRONT (last_buff) += len - cur_len;
- }
- }
+ BUF_APPEND (base, cur - base);
if (pfile->buffer->cur < pfile->buffer->rlimit)
CPP_INCREMENT_LINE (pfile, 0);
pfile->buffer->need_line = true;
+ pfile->buffer->cur = cur-1;
+ _cpp_process_line_notes (pfile, false);
if (!_cpp_get_fresh_line (pfile))
{
source_location src_loc = token->src_loc;
}
cur = base = pfile->buffer->cur;
+ note = &pfile->buffer->notes[pfile->buffer->cur_note];
}
else if (c == '\0' && !saw_NUL)
LINEMAP_POSITION_FOR_COLUMN (saw_NUL, pfile->line_table,
CPP_BUF_COLUMN (pfile->buffer, cur));
}
+ break_outer_loop:
if (saw_NUL && !pfile->state.skipping)
cpp_error_with_line (pfile, CPP_DL_WARNING, saw_NUL, 0,
}
if (skip_line_comment (pfile) && CPP_OPTION (pfile, warn_comments))
- cpp_error (pfile, CPP_DL_WARNING, "multi-line comment");
+ cpp_warning (pfile, CPP_W_COMMENTS, "multi-line comment");
}
else if (c == '=')
{
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