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* src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do

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with yyltype/YYLTYPE.  This allows inclusion of the generated
header within the parser if the compiler, such as GGC, accepts
multiple equivalent #defines.
This commit is contained in:
Akim Demaille
2001-11-05 09:12:38 +00:00
parent ea57e0a3c4
commit d61c57b70c
6 changed files with 34 additions and 18 deletions
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16
src/reader.c
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@@ -711,6 +711,13 @@ parse_union_decl (void)
{
int c;
int count = 0;
const char *prologue = "\
#ifndef YYSTYPE\n\
typedef union";
const char *epilogue = "\
yystype;\n\
# define YYSTYPE yystype\n\
#endif\n";
if (typed)
complain (_("multiple %s declarations"), "%union");
@@ -723,9 +730,9 @@ parse_union_decl (void)
else
obstack_1grow (&attrs_obstack, '\n');
obstack_sgrow (&attrs_obstack, "typedef union");
obstack_sgrow (&attrs_obstack, prologue);
if (defines_flag)
obstack_sgrow (&defines_obstack, "typedef union");
obstack_sgrow (&defines_obstack, prologue);
c = getc (finput);
@@ -760,9 +767,9 @@ parse_union_decl (void)
count--;
if (count <= 0)
{
obstack_sgrow (&attrs_obstack, " YYSTYPE;\n");
obstack_sgrow (&attrs_obstack, epilogue);
if (defines_flag)
obstack_sgrow (&defines_obstack, " YYSTYPE;\n");
obstack_sgrow (&defines_obstack, epilogue);
/* JF don't choke on trailing semi */
c = skip_white_space ();
if (c != ';')
@@ -1955,7 +1962,6 @@ reader (void)
/* Read the declaration section. Copy %{ ... %} groups to
TABLE_OBSTACK and FDEFINES file. Also notice any %token, %left,
etc. found there. */
obstack_1grow (&table_obstack, '\n');
obstack_fgrow3 (&table_obstack, "\
/* %s, made from %s\n\
by GNU bison %s. */\n\