X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/82c035a8238ea0f6a7cdb8d937ba97534ab620dd..283f1e64820fc8f498a4e9ef5128a347b5876039:/tests/actions.at

diff --git a/tests/actions.at b/tests/actions.at
index 78531fcd..2e707bde 100644
--- a/tests/actions.at
+++ b/tests/actions.at
@@ -31,22 +31,25 @@ AT_SETUP([Mid-rule actions])
 
 AT_DATA([[input.y]],
 [[%{
-#include <stdio.h>
-#include <stdlib.h>
-static void yyerror (const char *msg);
-static int yylex (void);
+# include <stdio.h>
+# include <stdlib.h>
+  static void yyerror (const char *msg);
+  static int yylex (void);
+# define YYDEBUG         1
+# define YYERROR_VERBOSE 1
 %}
 %%
-exp:     { printf ("0\n"); }
-     '1' { printf ("1\n"); }
-     '2' { printf ("2\n"); }
-     '3' { printf ("3\n"); }
-     '4' { printf ("4\n"); }
-     '5' { printf ("5\n"); }
-     '6' { printf ("6\n"); }
-     '7' { printf ("7\n"); }
-     '8' { printf ("8\n"); }
-     '9' { printf ("9\n"); }
+exp:     { putchar ('0'); }
+     '1' { putchar ('1'); }
+     '2' { putchar ('2'); }
+     '3' { putchar ('3'); }
+     '4' { putchar ('4'); }
+     '5' { putchar ('5'); }
+     '6' { putchar ('6'); }
+     '7' { putchar ('7'); }
+     '8' { putchar ('8'); }
+     '9' { putchar ('9'); }
+         { putchar ('\n'); }
    ;
 %%
 static int
@@ -69,19 +72,297 @@ main (void)
 }
 ]])
 
-AT_CHECK([bison input.y -d -v -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([input], 0,
-[[0
-1
-2
-3
-4
-5
-6
-7
-8
-9
+AT_CHECK([bison -d -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 0,
+[[0123456789
+]])
+
+AT_CLEANUP
+
+
+
+## ---------------- ##
+## Exotic Dollars.  ##
+## ---------------- ##
+
+AT_SETUP([Exotic Dollars])
+
+AT_DATA([[input.y]],
+[[%{
+# include <stdio.h>
+# include <stdlib.h>
+  static void yyerror (const char *msg);
+  static int yylex (void);
+# define YYDEBUG         1
+# define YYERROR_VERBOSE 1
+%}
+
+%union
+{
+  int val;
+};
+
+%type <val> a_1 a_2 a_5
+            sum_of_the_five_previous_values
+
+%%
+exp: a_1 a_2 { $<val>$ = 3; } { $<val>$ = $<val>3 + 1; } a_5
+     sum_of_the_five_previous_values
+    {
+       printf ("%d\n", $6);
+    }
+;
+a_1: { $$ = 1; };
+a_2: { $$ = 2; };
+a_5: { $$ = 5; };
+
+sum_of_the_five_previous_values:
+    {
+       $$ = $<val>0 + $<val>-1 + $<val>-2 + $<val>-3 + $<val>-4;
+    }
+;
+
+%%
+static int
+yylex (void)
+{
+  return EOF;
+}
+
+static void
+yyerror (const char *msg)
+{
+  fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+  return yyparse ();
+}
+]])
+
+AT_CHECK([bison -d -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 0,
+[[15
+]])
+
+AT_CLEANUP
+
+
+
+## -------------------------- ##
+## Printers and Destructors.  ##
+## -------------------------- ##
+
+# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, BISON-DIRECTIVE)
+# -------------------------------------------------------------
+m4_define([_AT_CHECK_PRINTER_AND_DESTRUCTOR],
+[m4_if([$1$2$3], $[1]$[2]$[3], [],
+       [m4_fatal([$0: Invalid arguments: $@])])dnl
+
+AT_SETUP([Printers and Destructors: $4])
+
+# Make sure complex $n work.
+
+AT_DATA([[input.y]],
+[[$4
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%error-verbose
+%debug
+%verbose
+%locations
+%union
+{
+  int ival;
+}
+%type <ival> 'x' thing line input
+
+%printer { fprintf (yyout, "%d@%d", $$, @$.first_line); }
+   input line thing 'x'
+
+%destructor
+  { fprintf (stdout, "Freeing nterm input (%d@%d)\n", $$, @$.first_line); }
+  input
+
+%destructor
+  { fprintf (stdout, "Freeing nterm line (%d@%d)\n", $$, @$.first_line); }
+  line
+
+%destructor
+  { fprintf (stdout, "Freeing nterm thing (%d@%d)\n", $$, @$.first_line); }
+  thing
+
+%destructor
+  { fprintf (stdout, "Freeing token 'x' (%d@%d)\n", $$, @$.first_line); }
+  'x'
+
+%%
+input:
+  /* Nothing. */
+    {
+      $$ = 0;
+      printf ("input(%d@%d): /* Nothing */';'\n", $$, @$.first_line);
+    }
+| line input /* Right recursive to load the stack so that popping at
+		EOF can	be exercised.  */
+    {
+      $$ = 2;
+      printf ("input(%d@%d): line(%d@%d) input(%d@%d)';'\n",
+	      $$, @$.first_line, $1, @1.first_line, $2, @2.first_line);
+    }
+;
+
+line:
+  thing thing thing ';'
+    {
+      $$ = $1;
+      printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) thing(%d@%d) ';'\n",
+              $$, @$.first_line, $1, @1.first_line, $2, @2.first_line,
+              $3, @3.first_line);
+    }
+| thing thing ';'
+    {
+      $$ = $1;
+      printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) ';'\n",
+              $$, @$.first_line, $1, @1.first_line, $2, @2.first_line);
+    }
+| thing ';'
+    {
+      $$ = $1;
+      printf ("line(%d@%d): thing(%d@%d) ';'\n",
+              $$, @$.first_line, $1, @1.first_line);
+    }
+| error ';'
+    {
+      $$ = -1;
+      printf ("line(%d@%d): error(@%d) ';'\n",
+              $$, @$.first_line, @1.first_line);
+    }
+;
+
+thing:
+  'x'
+    {
+      $$ = $1;
+      printf ("thing(%d@%d): 'x'(%d@%d)\n",
+              $$, @$.first_line, $1, @1.first_line);
+    }
+;
+%%
+static int
+yylex (void)
+{
+  static const unsigned int input[] =
+    {
+      /* Exericise the discarding of stack top and input until `error'
+         can be reduced.  */
+      'x', 'x', 'x', 'x', 'x', 'x', ';',
+
+      /* Load the stack and provoke an error that cannot be caught by
+         the grammar, to check that the stack is cleared. */
+      'x', 'x', ';',
+      'x', ';',
+      'y'
+    };
+  static unsigned int counter = 0;
+
+  if (counter < (sizeof(input) / sizeof (input[0])))
+    {
+       yylval.ival = counter;
+       /* As in BASIC, line numbers go from 10 to 10.  */
+       yylloc.first_line = 10 * counter;
+       printf ("sending: '%c' (value = %d, line %d)\n",
+               input[counter], yylval.ival, yylloc.first_line);
+       return (int) input[counter++];
+    }
+  else
+    {
+      printf ("sending: EOF\n");
+      return EOF;
+    }
+}
+
+static void
+yyerror (const char *msg)
+{
+  fprintf (stdout, "%d: %s\n", yylloc.first_line, msg);
+}
+
+int
+main (void)
+{
+  yydebug = !!getenv ("YYDEBUG");
+  if (yyparse ())
+    {
+      fprintf (stdout, "Parsing FAILED.\n");
+      exit (1);
+    }
+  fprintf (stdout, "Successful parse.\n");
+  return 0;
+}
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 1,
+[[sending: 'x' (value = 0, line 0)
+thing(0@0): 'x'(0@0)
+sending: 'x' (value = 1, line 10)
+thing(1@10): 'x'(1@10)
+sending: 'x' (value = 2, line 20)
+thing(2@20): 'x'(2@20)
+sending: 'x' (value = 3, line 30)
+30: parse error, unexpected 'x', expecting ';'
+Freeing nterm thing (2@20)
+Freeing nterm thing (1@10)
+Freeing nterm thing (0@0)
+Freeing token 'x' (3@30)
+sending: 'x' (value = 4, line 40)
+Freeing token 'x' (4@40)
+sending: 'x' (value = 5, line 50)
+Freeing token 'x' (5@50)
+sending: ';' (value = 6, line 60)
+line(-1@50): error(@50) ';'
+sending: 'x' (value = 7, line 70)
+thing(7@70): 'x'(7@70)
+sending: 'x' (value = 8, line 80)
+thing(8@80): 'x'(8@80)
+sending: ';' (value = 9, line 90)
+line(7@70): thing(7@70) thing(8@80) ';'
+sending: 'x' (value = 10, line 100)
+thing(10@100): 'x'(10@100)
+sending: ';' (value = 11, line 110)
+line(10@100): thing(10@100) ';'
+sending: 'y' (value = 12, line 120)
+120: parse error, unexpected $undefined, expecting $end or 'x'
+sending: EOF
+Freeing nterm line (10@100)
+Freeing nterm line (7@70)
+Freeing nterm line (-1@50)
+Parsing FAILED.
 ]])
 
 AT_CLEANUP
+])
+
+
+# AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS])
+# ------------------------------------------------
+# Produce `calc.y'.
+m4_define([AT_CHECK_PRINTER_AND_DESTRUCTOR],
+[_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], [$1])
+])
+
+
+AT_CHECK_PRINTER_AND_DESTRUCTOR()
+AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser])