cpplex.c (_cpp_init_toklist): No comment space to initialise.

        * cpplex.c (_cpp_init_toklist): No comment space to initialise.
	(_cpp_free_toklist): No comment space to free.
	(expand_comment_space): Remove.
        (save_comment_space): Place the comment in the current token and
        not in a separate comment space.
        (_cpp_lex_line): Save comments during plain code and #define
        directives only.
        * cpplib.h (struct _cpp_toklist): Remove comment space.

From-SVN: r34215

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b8c97b4581e3397b7f0143a474754eacc865dffa..c65e95f4cd13202b8a7bb82e410166a8e81a958b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2000-05-28  Neil Booth  <NeilB@earthling.net>
+
+        * cpplex.c (_cpp_init_toklist): No comment space to initialise.
+       (_cpp_free_toklist): No comment space to free.
+       (expand_comment_space): Remove.
+        (save_comment_space): Place the comment in the current token and
+        not in a separate comment space.
+        (_cpp_lex_line): Save comments during plain code and #define
+        directives only.
+        * cpplib.h (struct _cpp_toklist): Remove comment space.
+
 2000-05-28  Neil Booth  <NeilB@earthling.net>
 
        * cppexp.c (parse_assertion): Supply extra argument to

diff --git a/gcc/cpplex.c b/gcc/cpplex.c
index ddea616cad6be9772ea5d8262d4ff9783bd650e7..1addaf6b41f262749e3e1c0f2d1e5493dd037e8c 100644 (file)
--- a/gcc/cpplex.c
+++ b/gcc/cpplex.c
@@ -76,8 +76,8 @@ static void parse_number PARAMS ((cpp_reader *, cpp_toklist *, cpp_name *));
 static void parse_string2 PARAMS ((cpp_reader *, cpp_toklist *, cpp_name *,
                                  unsigned int, int));
 static int trigraph_ok PARAMS ((cpp_reader *, const unsigned char *));
-static void save_comment PARAMS ((cpp_toklist *, const unsigned char *,
-                                 unsigned int, unsigned int, unsigned int));
+static void save_comment PARAMS ((cpp_toklist *, cpp_token *, unsigned char *,
+                                 unsigned int, unsigned int));
 void _cpp_lex_line PARAMS ((cpp_reader *, cpp_toklist *));
 
 static void _cpp_output_list PARAMS ((cpp_reader *, cpp_toklist *));
@@ -599,10 +599,6 @@ _cpp_init_toklist (list, flags)
   /* Allocate name space.  */
   list->namebuf = (unsigned char *) xmalloc (list->name_cap);
 
-  /* Only create a comment space on demand.  */
-  list->comments_cap = 0;
-  list->comments = 0;
-
   _cpp_clear_toklist (list);
 }
 
@@ -613,7 +609,6 @@ _cpp_clear_toklist (list)
 {
   list->tokens_used = 0;
   list->name_used = 0;
-  list->comments_used = 0;
   list->dirno = -1;
   list->flags &= LIST_OFFSET;  /* clear all but that one */
 }
@@ -624,8 +619,6 @@ void
 _cpp_free_toklist (list)
      cpp_toklist *list;
 {
-  if (list->comments)
-    free (list->comments);
   if (list->flags & LIST_OFFSET)
     free (list->tokens - 1);   /* Backup over dummy token.  */
   else
@@ -669,9 +662,6 @@ _cpp_slice_toklist (copy, start, finish)
   copy->tokens_used = n;
   copy->name_used = bytes;
   copy->name_cap = bytes;
-  copy->comments = 0;
-  copy->comments_cap = 0;
-  copy->comments_used = 0;
   
   copy->flags = 0;
   copy->dirno = -1;
@@ -713,13 +703,6 @@ _cpp_squeeze_toklist (list)
        if (token_spellings[list->tokens[i].type].type > SPELL_NONE)
          list->tokens[i].val.name.text += delta;
     }
-  
-  if (list->comments_cap)
-    {
-      list->comments = xrealloc (list->comments,
-                                list->comments_used * sizeof (cpp_token));
-      list->comments_cap = list->comments_used;
-    }
 }
 
 /* Compare two tokens.  */
@@ -2360,24 +2343,6 @@ static const unsigned char *digraph_spellings [] = {U"%:", U"%:%:", U"<:",
                                                    U":>", U"<%", U"%>"};
 static unsigned char trigraph_map[256];
 
-static void
-expand_comment_space (list)
-     cpp_toklist *list;
-{
-  if (list->comments_cap == 0)
-    {
-      list->comments_cap = 10;
-      list->comments = (cpp_token *)
-       xmalloc (list->comments_cap * sizeof (cpp_token));
-    }
-  else
-    {
-      list->comments_cap *= 2;
-      list->comments = (cpp_token *)
-       xrealloc (list->comments, list->comments_cap);
-    }
-}
-
 void
 init_trigraph_map ()
 {
@@ -2864,29 +2829,23 @@ parse_string2 (pfile, list, name, terminator, multiline_ok)
 
 #define COMMENT_START_LEN 2
 static void
-save_comment (list, from, len, tok_no, type)
+save_comment (list, token, from, len, type)
      cpp_toklist *list;
+     cpp_token *token;
      const unsigned char *from;
      unsigned int len;
-     unsigned int tok_no;
      unsigned int type;
 {
-  cpp_token *comment;
   unsigned char *buffer;
   
   len += COMMENT_START_LEN;
 
-  if (list->comments_used == list->comments_cap)
-    expand_comment_space (list);
-
   if (list->name_used + len > list->name_cap)
     expand_name_space (list, len);
 
-  comment = &list->comments[list->comments_used++];
-  INIT_TOKEN_NAME (list, comment);
-  comment->type = CPP_COMMENT;
-  comment->aux = tok_no;
-  comment->val.name.len = len;
+  INIT_TOKEN_NAME (list, token);
+  token->type = CPP_COMMENT;
+  token->val.name.len = len;
 
   buffer = list->namebuf + list->name_used;
   list->name_used += len;
@@ -3078,15 +3037,18 @@ _cpp_lex_line (pfile, list)
                        cpp_error_with_line (pfile, list->line,
                                             cur_token[-1].col,
                                             "multi-line comment");
-                     if (!CPP_OPTION (pfile, discard_comments))
-                       save_comment (list, cur, buffer->cur - cur,
-                                     cur_token - 1 - list->tokens, c);
-                     cur = buffer->cur;
 
                      /* Back-up to first '-' or '/'.  */
-                     cur_token -= 2;
+                     cur_token--;
+                     if (!CPP_OPTION (pfile, discard_comments)
+                         && (!IS_DIRECTIVE() || list->dirno == 0))
+                       save_comment (list, cur_token++, cur,
+                                     buffer->cur - cur, c);
+                     cur = buffer->cur;
+
                      if (!CPP_OPTION (pfile, traditional))
                        flags = PREV_WHITESPACE;
+                     break;
                    }
                }
            }
@@ -3109,12 +3071,15 @@ _cpp_lex_line (pfile, list)
                  else if (buffer->cur[-2] != '*')
                    cpp_warning (pfile,
                                 "comment end '*/' split across lines");
-                 if (!CPP_OPTION (pfile, discard_comments))
-                   save_comment (list, cur, buffer->cur - cur,
-                                cur_token - 1 - list->tokens, c);
-                 cur = buffer->cur;
 
+                 /* Back up to opening '/'.  */
                  cur_token--;
+                 if (!CPP_OPTION (pfile, discard_comments)
+                     && (!IS_DIRECTIVE() || list->dirno == 0))
+                   save_comment (list, cur_token++, cur,
+                                 buffer->cur - cur, c);
+                 cur = buffer->cur;
+
                  if (!CPP_OPTION (pfile, traditional))
                    flags = PREV_WHITESPACE;
                  break;
@@ -3495,32 +3460,11 @@ _cpp_output_list (pfile, list)
      cpp_reader *pfile;
      cpp_toklist *list;
 {
-  cpp_token *token, *comment, *comment_before = 0;
-
-  if (list->comments_used > 0)
-    {
-      comment = &list->comments[0];
-      comment_before = &list->tokens[comment->aux];
-    }
+  cpp_token *token;
 
   token = &list->tokens[0];
   do
     {
-      /* Output comments if -C.  */
-      while (token == comment_before)
-       {
-         /* Make space for the comment, and copy it out.  */
-         CPP_RESERVE (pfile, TOKEN_LEN (comment));
-         pfile->limit = spell_token (pfile, comment, pfile->limit, 0);
-
-         /* Stop if no comments left, or no more comments appear
-             before the current token.  */
-         comment++;
-         if (comment == list->comments + list->comments_used)
-           break;
-         comment_before = &list->tokens[comment->aux];
-       }
-
       CPP_RESERVE (pfile, TOKEN_LEN (token));
       pfile->limit = spell_token (pfile, token, pfile->limit, 1);
     }

diff --git a/gcc/cpplib.h b/gcc/cpplib.h
index 6ecab526c48e2178c713c2dba887809549e6cbc5..5af21cb677d50c3c4969246068ca0e773d836fb1 100644 (file)
--- a/gcc/cpplib.h
+++ b/gcc/cpplib.h
@@ -208,11 +208,6 @@ struct cpp_toklist
 
   unsigned int line;           /* starting line number */
 
-  /* Comment copying.  */
-  cpp_token *comments;         /* comment tokens.  */
-  unsigned int comments_used;  /* comment tokens used.  */
-  unsigned int comments_cap;   /* comment token capacity.  */
-
   /* The handler to call after lexing the rest of this line.
      -1 for none */
   short dirno;