* src/files.c (action_obstack): Remove, unused.

(output_obstack): Remove it, and all its dependencies, as it is no
longer needed.
* src/reader.c (epilogue_set): Build the epilogue in the
muscle_obstack.
* src/output.h, src/output.c (muscle_obstack): Move to...
* src/muscle_tab.h, src/muscle_tab.h: here.
(muscle_init): Initialize muscle_obstack.
(muscle_free): New.
* src/main.c (main): Call it.

ChangeLog

@@ -1,3 +1,17 @@
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* src/files.c (action_obstack): Remove, unused.
+	(output_obstack): Remove it, and all its dependencies, as it is no
+	longer needed.
+	* src/reader.c (epilogue_set): Build the epilogue in the
+	muscle_obstack.
+	* src/output.h, src/output.c (muscle_obstack): Move to...
+	* src/muscle_tab.h, src/muscle_tab.h: here.
+	(muscle_init): Initialize muscle_obstack.
+	(muscle_free): New.
+	* src/main.c (main): Call it.
+
+	
 2002-06-14  Akim Demaille  <akim@epita.fr>
 
 	* src/location.h: New, extracted from...

src/files.c

@@ -1,5 +1,5 @@
 /* Open and close files for bison,
-   Copyright 1984, 1986, 1989, 1992, 2000, 2001, 2002
+   Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
@@ -32,8 +32,6 @@ const char *base_name PARAMS ((char const *name));
 
 FILE *finput = NULL;
 
-struct obstack action_obstack;
-struct obstack output_obstack;
 struct obstack pre_prologue_obstack;
 struct obstack post_prologue_obstack;
 

src/files.h

@@ -46,16 +46,10 @@ extern char *spec_defines_file;
 extern FILE *finput;
 
 
-/* Output all the action code; precise form depends on which parser. */
-extern struct obstack action_obstack;
-
 /* If semantic parser, output a .h file that defines YYSTYPE... */
 extern struct obstack pre_prologue_obstack;
 extern struct obstack post_prologue_obstack;
 
-/* The verbose output. */
-extern struct obstack output_obstack;
-
 extern char *infile;
 
 void compute_output_file_names PARAMS((void));

src/main.c

@@ -110,7 +110,7 @@ main (int argc, char *argv[])
   free_nullable ();
   free_derives ();
   grammar_free ();
-
+  muscle_free ();
   /* If using alloca.c, flush the alloca'ed memory for the benefit of
      people running Bison as a library in IDEs.  */
 #if C_ALLOCA

src/muscle_tab.c

@@ -24,6 +24,10 @@
 #include "muscle_tab.h"
 #include "getargs.h"
 
+
+/* An obstack used to create some entries.  */
+struct obstack muscle_obstack;
+
 /* Initial capacity of muscles hash table.  */
 #define HT_INITIAL_CAPACITY 257
 
@@ -44,16 +48,24 @@ hash_muscle (const void *x, unsigned int tablesize)
   return hash_string (m->key, tablesize);
 }
 
+/*-----------------------------------------------------------------.
+| Create the MUSCLE_TABLE, and initialize it with default values.  |
+| Also set up the MUSCLE_OBSTACK.                                  |
+`-----------------------------------------------------------------*/
+
 void
 muscle_init (void)
 {
   muscle_table = hash_initialize (HT_INITIAL_CAPACITY, NULL, hash_muscle,
-				  hash_compare_muscles, NULL);
+				  hash_compare_muscles, free);
 
   /* Version and input file.  */
   muscle_insert ("version", VERSION);
   muscle_insert ("filename", infile);
 
+  /* FIXME: there should probably be no default here, only in the
+     skeletons.  */
+
   /* Types.  */
   muscle_insert ("ltype", "yyltype");
 
@@ -66,8 +78,25 @@ muscle_init (void)
 
   /* C++ macros.  */
   muscle_insert ("name", "Parser");
+
+  /* Initialize the muscle obstack.  */
+  obstack_init (&muscle_obstack);
 }
 
+
+/*------------------------------------------------------------.
+| Free all the memory consumed by the muscle machinery only.  |
+`------------------------------------------------------------*/
+
+void
+muscle_free (void)
+{
+  hash_free (muscle_table);
+  obstack_free (&muscle_obstack, NULL);
+}
+
+
+
 void
 muscle_insert (const char *key, const char *value)
 {

src/muscle_tab.h

@@ -32,6 +32,11 @@ typedef struct muscle_entry_s
 void muscle_init PARAMS ((void));
 void muscle_insert PARAMS ((const char *key, const char *value));
 const char *muscle_find PARAMS ((const char *key));
+void muscle_free PARAMS ((void));
+
+
+/* An obstack dedicated to receive muscle keys and values.  */
+extern struct obstack muscle_obstack;
 
 #define MUSCLE_INSERT_INT(Key, Value)				\
 {								\

src/output.c

@@ -132,7 +132,6 @@ static short *check = NULL;
 static int lowzero;
 static int high;
 
-struct obstack muscle_obstack;
 static struct obstack format_obstack;
 
 int error_verbose = 0;
@@ -1087,9 +1086,7 @@ output (void)
   /* Process the selected skeleton file.  */
   output_skeleton ();
 
-  obstack_free (&muscle_obstack, NULL);
   obstack_free (&format_obstack, NULL);
-  obstack_free (&action_obstack, NULL);
   obstack_free (&pre_prologue_obstack, NULL);
   obstack_free (&post_prologue_obstack, NULL);
 }

src/output.h

@@ -29,6 +29,4 @@ void output PARAMS ((void));
 void actions_output PARAMS ((FILE *out));
 void token_definitions_output PARAMS ((FILE *out));
 
-extern struct obstack muscle_obstack;
-
 #endif /* !OUTPUT_H_ */

src/print.c

@@ -503,13 +503,6 @@ print_results (void)
      that conflicts with Posix.  */
   FILE *out = xfopen (spec_verbose_file, "w");
 
-  size_t size = obstack_object_size (&output_obstack);
-  fwrite (obstack_finish (&output_obstack), 1, size, out);
-  obstack_free (&output_obstack, NULL);
-
-  if (size)
-    fputs ("\n\n", out);
-
   reduce_output (out);
   conflicts_output (out);
 

src/reader.c

@@ -138,19 +138,16 @@ prologue_augment (const char *prologue, location_t location)
 void
 epilogue_set (const char *epilogue, location_t location)
 {
-  struct obstack el_obstack;
-  obstack_init (&el_obstack);
-
   if (!no_lines_flag)
     {
-      obstack_fgrow2 (&el_obstack, muscle_find ("linef"),
+      obstack_fgrow2 (&muscle_obstack, muscle_find ("linef"),
 		      location.first_line,
 		      quotearg_style (c_quoting_style,
 				      muscle_find ("filename")));
     }
-  obstack_sgrow (&el_obstack, epilogue);
-  obstack_1grow (&el_obstack, 0);
-  muscle_insert ("epilogue", obstack_finish (&el_obstack));
+  obstack_sgrow (&muscle_obstack, epilogue);
+  obstack_1grow (&muscle_obstack, 0);
+  muscle_insert ("epilogue", obstack_finish (&muscle_obstack));
 }
 
 
@@ -450,9 +447,6 @@ reader (void)
   gram_control_t gram_control;
   lineno = 1;
 
-  /* Initialize the muscle obstack.  */
-  obstack_init (&muscle_obstack);
-
   /* Initialize the symbol table.  */
   symbols_new ();
 
@@ -473,8 +467,6 @@ reader (void)
   undeftoken->number = ntokens++;
 
   /* Initialize the obstacks. */
-  obstack_init (&action_obstack);
-  obstack_init (&output_obstack);
   obstack_init (&pre_prologue_obstack);
   obstack_init (&post_prologue_obstack);