X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4b3847c3c0e161b85267d077adb256a880c0f3e3..623a5147e67ac2f657f23fcedb660df87515c806:/data/glr.c

diff --git a/data/glr.c b/data/glr.c
index ce611600..89a76e3e 100644
--- a/data/glr.c
+++ b/data/glr.c
@@ -18,7 +18,10 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
-m4_include(b4_pkgdatadir/[c.m4])
+# If we are loaded by glr.cc, do not override c++.m4 definitions by
+# those of c.m4.
+m4_if(b4_skeleton, ["glr.c"],
+      [m4_include(b4_pkgdatadir/[c.m4])])
 
 ## ---------------- ##
 ## Default values.  ##
@@ -190,12 +193,8 @@ b4_copyright([Skeleton implementation for Bison GLR parsers in C],
 b4_percent_code_get([[top]])[
 ]m4_if(b4_api_prefix, [yy], [],
 [[/* Substitute the type names.  */
-#define YYSTYPE              ]b4_api_PREFIX[STYPE
-#define YYSTYPE_IS_TRIVIAL   ]b4_api_PREFIX[STYPE_IS_TRIVIAL
-#define YYSTYPE_IS_DECLARED  ]b4_api_PREFIX[STYPE_IS_DECLARED]b4_locations_if([[
-#define YYLTYPE              ]b4_api_PREFIX[LTYPE
-#define YYLTYPE_IS_TRIVIAL   ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
-#define YYLTYPE_IS_DECLARED  ]b4_api_PREFIX[LTYPE_IS_DECLARED]])])[
+#define YYSTYPE ]b4_api_PREFIX[STYPE]b4_locations_if([[
+#define YYLTYPE ]b4_api_PREFIX[LTYPE]])])[
 ]m4_if(b4_prefix, [yy], [],
 [[/* Substitute the variable and function names.  */
 #define yyparse ]b4_prefix[parse
@@ -224,11 +223,11 @@ b4_percent_code_get([[top]])[
 #endif
 
 /* Default (constant) value used for initialization for null
-   right-hand sides.  Unlike the standard yacc.c template,
-   here we set the default value of $$ to a zeroed-out value.
-   Since the default value is undefined, this behavior is
-   technically correct.  */
-static YYSTYPE yyval_default;
+   right-hand sides.  Unlike the standard yacc.c template, here we set
+   the default value of $$ to a zeroed-out value.  Since the default
+   value is undefined, this behavior is technically correct.  */
+static YYSTYPE yyval_default;]b4_locations_if([
+b4_yyloc_default_define])[
 
 /* Copy the second part of user declarations.  */
 ]b4_user_post_prologue
@@ -242,24 +241,24 @@ b4_percent_code_get[]dnl
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
-#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
 #  endif
 # endif
 # ifndef YY_
-#  define YY_(msgid) msgid
+#  define YY_(Msgid) Msgid
 # endif
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */
 #if ! defined lint || defined __GNUC__
-# define YYUSE(e) ((void) (e))
+# define YYUSE(E) ((void) (E))
 #else
-# define YYUSE(e) /* empty */
+# define YYUSE(E) /* empty */
 #endif
 
 /* Identity function, used to suppress warnings about constant conditions.  */
 #ifndef lint
-# define YYID(n) (n)
+# define YYID(N) (N)
 #else
 ]b4_c_function_def([YYID], [static int], [[int i], [i]])[
 {
@@ -290,8 +289,9 @@ b4_percent_code_get[]dnl
 #ifndef YYSETJMP
 # include <setjmp.h>
 # define YYJMP_BUF jmp_buf
-# define YYSETJMP(env) setjmp (env)
-# define YYLONGJMP(env, val) longjmp (env, val)
+# define YYSETJMP(Env) setjmp (Env)
+// Pacify clang.
+# define YYLONGJMP(Env, Val) (longjmp (Env, Val), YYASSERT (0))
 #endif
 
 /*-----------------.
@@ -314,7 +314,7 @@ b4_percent_code_get[]dnl
 #endif])[
 
 #ifndef YYASSERT
-# define YYASSERT(condition) ((void) ((condition) || (abort (), 0)))
+# define YYASSERT(Condition) ((void) ((Condition) || (abort (), 0)))
 #endif
 
 /* YYFINAL -- State number of the termination state.  */
@@ -349,7 +349,7 @@ static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
   ]b4_translate[
 };
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
 /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
    YYRHS.  */
 static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
@@ -370,7 +370,7 @@ static const ]b4_int_type_for([b4_rline])[ yyrline[] =
 };
 #endif
 
-#if YYDEBUG || YYERROR_VERBOSE || ]b4_token_table_flag[
+#if ]b4_api_PREFIX[DEBUG || YYERROR_VERBOSE || ]b4_token_table_flag[
 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
    First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
 static const char *const yytname[] =
@@ -471,34 +471,13 @@ static const ]b4_int_type_for([b4_stos])[ yystos[] =
   ]b4_stos[
 };
 
-
 /* Error token number */
 #define YYTERROR 1
 
-/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
-   If N is 0, then set CURRENT to the empty location which ends
-   the previous symbol: RHS[0] (always defined).  */
-
 ]b4_locations_if([[
-#define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
 #ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N)                                \
-    do                                                                  \
-      if (YYID (N))                                                     \
-        {                                                               \
-          (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
-          (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \
-          (Current).last_line    = YYRHSLOC (Rhs, N).last_line;         \
-          (Current).last_column  = YYRHSLOC (Rhs, N).last_column;       \
-        }                                                               \
-      else                                                              \
-        {                                                               \
-          (Current).first_line   = (Current).last_line   =              \
-            YYRHSLOC (Rhs, 0).last_line;                                \
-          (Current).first_column = (Current).last_column =              \
-            YYRHSLOC (Rhs, 0).last_column;                              \
-        }                                                               \
-    while (YYID (0))
+]b4_yylloc_default_define[
+# define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
 
 /* YY_LOCATION_PRINT -- Print the location on the stream.
    This macro was not mandated originally: define only if we know
@@ -519,7 +498,6 @@ static const ]b4_int_type_for([b4_stos])[ yystos[] =
 # define YY_LOCATION_PRINT(File, Loc) ((void) 0)
 #endif
 
-
 /* YYLEX -- calling `yylex' with the right arguments.  */
 #define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
 
@@ -553,7 +531,7 @@ typedef enum { yyok, yyaccept, yyabort, yyerr } YYRESULTTAG;
    do { YYRESULTTAG yyflag = YYE; if (yyflag != yyok) return yyflag; }       \
    while (YYID (0))
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
 
 # ifndef YYFPRINTF
 #  define YYFPRINTF fprintf
@@ -581,12 +559,12 @@ do {                                                            \
    multiple parsers can coexist.  */
 int yydebug;
 
-#else /* !YYDEBUG */
+#else /* !]b4_api_PREFIX[DEBUG */
 
 # define YYDPRINTF(Args)
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
 
-#endif /* !YYDEBUG */
+#endif /* !]b4_api_PREFIX[DEBUG */
 
 /* YYINITDEPTH -- initial size of the parser's stacks.  */
 #ifndef YYINITDEPTH
@@ -613,8 +591,8 @@ int yydebug;
 
 #ifndef YYSTACKEXPANDABLE
 # if (! defined __cplusplus \
-      || (]b4_locations_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
-          && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))
+      || (]b4_locations_if([[defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL \
+          && ]])[defined ]b4_api_PREFIX[STYPE_IS_TRIVIAL && ]b4_api_PREFIX[STYPE_IS_TRIVIAL))
 #  define YYSTACKEXPANDABLE 1
 # else
 #  define YYSTACKEXPANDABLE 0
@@ -825,7 +803,7 @@ yyMemoryExhausted (yyGLRStack* yystackp)
   YYLONGJMP (yystackp->yyexception_buffer, 2);
 }
 
-#if YYDEBUG || YYERROR_VERBOSE
+#if ]b4_api_PREFIX[DEBUG || YYERROR_VERBOSE
 /** A printable representation of TOKEN.  */
 static inline const char*
 yytokenName (yySymbol yytoken)
@@ -962,7 +940,7 @@ yydestroyGLRState (char const *yymsg, yyGLRState *yys]b4_user_formals[)
                 &yys->yysemantics.yysval]b4_locuser_args([&yys->yyloc])[);
   else
     {
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
       if (yydebug)
         {
           if (yys->yysemantics.yyfirstVal)
@@ -995,8 +973,8 @@ yylhsNonterm (yyRuleNum yyrule)
   return yyr1[yyrule];
 }
 
-#define yypact_value_is_default(yystate) \
-  ]b4_table_value_equals([[pact]], [[yystate]], [b4_pact_ninf])[
+#define yypact_value_is_default(Yystate) \
+  ]b4_table_value_equals([[pact]], [[Yystate]], [b4_pact_ninf])[
 
 /** True iff LR state STATE has only a default reduction (regardless
  *  of token).  */
@@ -1013,8 +991,8 @@ yydefaultAction (yyStateNum yystate)
   return yydefact[yystate];
 }
 
-#define yytable_value_is_error(yytable_value) \
-  ]b4_table_value_equals([[table]], [[yytable_value]], [b4_table_ninf])[
+#define yytable_value_is_error(Yytable_value) \
+  ]b4_table_value_equals([[table]], [[Yytable_value]], [b4_table_ninf])[
 
 /** Set *YYACTION to the action to take in YYSTATE on seeing YYTOKEN.
  *  Result R means
@@ -1391,7 +1369,7 @@ yydoAction (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
     }
 }
 
-#if !YYDEBUG
+#if !]b4_api_PREFIX[DEBUG
 # define YY_REDUCE_PRINT(Args)
 #else
 # define YY_REDUCE_PRINT(Args)          \
@@ -1712,7 +1690,7 @@ yyresolveAction (yySemanticOption* yyopt, yyGLRStack* yystackp,
   return yyflag;
 }
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
 static void
 yyreportTree (yySemanticOption* yyx, int yyindent)
 {
@@ -1767,7 +1745,7 @@ yyreportAmbiguity (yySemanticOption* yyx0,
   YYUSE (yyx0);
   YYUSE (yyx1);
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   YYFPRINTF (stderr, "Ambiguity detected.\n");
   YYFPRINTF (stderr, "Option 1,\n");
   yyreportTree (yyx0, 2);
@@ -2317,20 +2295,13 @@ yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
   YYDPRINTF ((stderr, "Starting parse\n"));
 
   yychar = YYEMPTY;
-  yylval = yyval_default;
-]b4_locations_if([
-#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
-  yylloc.first_line   = yylloc.last_line   = ]b4_location_initial_line[;
-  yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
-#endif
-])
-m4_ifdef([b4_initial_action], [
-m4_pushdef([b4_at_dollar],     [yylloc])dnl
-m4_pushdef([b4_dollar_dollar], [yylval])dnl
-  /* User initialization code.  */
-  b4_user_initial_action
-m4_popdef([b4_dollar_dollar])dnl
-m4_popdef([b4_at_dollar])])dnl
+  yylval = yyval_default;]b4_locations_if([
+  yylloc = yyloc_default;])[
+]m4_ifdef([b4_initial_action], [
+b4_dollar_pushdef([yylval], [], [yylloc])dnl
+/* User initialization code.  */
+b4_user_initial_action
+b4_dollar_popdef])[]dnl
 [
   if (! yyinitGLRStack (yystackp, YYINITDEPTH))
     goto yyexhaustedlab;
@@ -2551,7 +2522,7 @@ m4_popdef([b4_at_dollar])])dnl
 }
 
 /* DEBUGGING ONLY */
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
 static void yypstack (yyGLRStack* yystackp, size_t yyk)
   __attribute__ ((__unused__));
 static void yypdumpstack (yyGLRStack* yystackp) __attribute__ ((__unused__));
@@ -2624,9 +2595,7 @@ yypdumpstack (yyGLRStack* yystackp)
   YYFPRINTF (stderr, "\n");
 }
 #endif
-]
-
-b4_epilogue
+]b4_epilogue[]dnl
 dnl
 dnl glr.cc produces its own header.
 dnl
@@ -2639,5 +2608,5 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C],
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])[
-]])])
+]])])dnl
 m4_divert_pop(0)