djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.

[bison.git] / tests / input.at

diff --git a/tests/input.at b/tests/input.at
index 223428f1695f85169016c00f0ee273203025bb86..dedd65636641113ed81ca9f41780c07767976155 100644 (file)
--- a/tests/input.at
+++ b/tests/input.at
@@ -168,6 +168,137 @@ AT_CHECK_UNUSED_VALUES([1])
 AT_CLEANUP
 
 
+## --------------------------------------------- ##
+## Default %printer and %destructor redeclared.  ##
+## --------------------------------------------- ##
+
+AT_SETUP([Default %printer and %destructor redeclared])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } %symbol-default %symbol-default
+%printer { destroy ($$); } %symbol-default %symbol-default
+
+%destructor { destroy ($$); } %symbol-default
+%printer { destroy ($$); } %symbol-default
+
+%%
+
+start: ;
+
+%destructor { destroy ($$); } %symbol-default;
+%printer { destroy ($$); } %symbol-default;
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:1.13-29: redeclaration for default %destructor
+input.y:1.13-29: previous declaration
+input.y:2.10-26: redeclaration for default %printer
+input.y:2.10-26: previous declaration
+input.y:4.13-29: redeclaration for default %destructor
+input.y:1.13-29: previous declaration
+input.y:5.10-26: redeclaration for default %printer
+input.y:2.10-26: previous declaration
+input.y:11.13-29: redeclaration for default %destructor
+input.y:4.13-29: previous declaration
+input.y:12.10-26: redeclaration for default %printer
+input.y:5.10-26: previous declaration
+]])
+
+AT_CLEANUP
+
+
+## ---------------------------------------------- ##
+## Per-type %printer and %destructor redeclared.  ##
+## ---------------------------------------------- ##
+
+AT_SETUP([Per-type %printer and %destructor redeclared])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <field1> <field2>
+%printer { destroy ($$); } <field1> <field2>
+
+%destructor { destroy ($$); } <field1> <field1>
+%printer { destroy ($$); } <field2> <field2>
+
+%%
+
+start: ;
+
+%destructor { destroy ($$); } <field2> <field1>;
+%printer { destroy ($$); } <field2> <field1>;
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:4.13-29: %destructor redeclaration for <field1>
+input.y:1.13-29: previous declaration
+input.y:4.13-29: %destructor redeclaration for <field1>
+input.y:4.13-29: previous declaration
+input.y:5.10-26: %printer redeclaration for <field2>
+input.y:2.10-26: previous declaration
+input.y:5.10-26: %printer redeclaration for <field2>
+input.y:5.10-26: previous declaration
+input.y:11.13-29: %destructor redeclaration for <field1>
+input.y:4.13-29: previous declaration
+input.y:11.13-29: %destructor redeclaration for <field2>
+input.y:1.13-29: previous declaration
+input.y:12.10-26: %printer redeclaration for <field1>
+input.y:2.10-26: previous declaration
+input.y:12.10-26: %printer redeclaration for <field2>
+input.y:5.10-26: previous declaration
+]])
+
+AT_CLEANUP
+
+
+## ---------------------------------------- ##
+## Unused values with default %destructor.  ##
+## ---------------------------------------- ##
+
+AT_SETUP([Unused values with default %destructor])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } %symbol-default
+
+%%
+
+start: end end { $1; } ;
+end: { }  ;
+]])
+
+AT_CHECK([bison input.y], [0], [],
+[[input.y:5.8-22: warning: unset value: $$
+input.y:5.8-22: warning: unused value: $2
+input.y:6.6-8: warning: unset value: $$
+]])
+
+AT_CLEANUP
+
+
+## ----------------------------------------- ##
+## Unused values with per-type %destructor.  ##
+## ----------------------------------------- ##
+
+AT_SETUP([Unused values with per-type %destructor])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <field1>
+%type <field1> start end
+
+%%
+
+start: end end { $1; } ;
+end: { }  ;
+]])
+
+AT_CHECK([bison input.y], [0], [],
+[[input.y:6.8-22: warning: unset value: $$
+input.y:6.8-22: warning: unused value: $2
+input.y:7.6-8: warning: unset value: $$
+]])
+
+AT_CLEANUP
+
+
 ## ---------------------- ##
 ## Incompatible Aliases.  ##
 ## ---------------------- ##
@@ -265,6 +396,7 @@ char apostrophe = '\'';
 #endif
 
 #include <stdio.h>
+#include <stdlib.h>
 %}
 /* %{ and %} can be here too. */
 
@@ -328,11 +460,14 @@ value_as_yystype (value val)
 static int
 yylex (void)
 {
-  static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
+  static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\
 #output "; /* "
   */
-  yylval = value_as_yystype (*input);
-  return *input++;
+  static size_t toknum;
+  if (! (toknum < sizeof input))
+    abort ();
+  yylval = value_as_yystype (input[toknum]);
+  return input[toknum++];
 }
 
 static void
@@ -412,3 +547,90 @@ AT_CHECK_REQUIRE(1.0, 0)
 AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0)
 ## FIXME: Some day augment this version number.
 AT_CHECK_REQUIRE(100.0, 63)
+
+
+## ------------------------------------- ##
+## String aliases for character tokens.  ##
+## ------------------------------------- ##
+
+AT_SETUP([String aliases for character tokens])
+
+# Bison once thought a character token and its alias were different symbols
+# with the same user token number.
+
+AT_DATA_GRAMMAR([input.y],
+[[%token 'a' "a"
+%%
+start: 'a';
+%%
+]])
+
+AT_CHECK([bison -o input.c input.y])
+
+AT_CLEANUP
+
+
+## --------------------- ##
+## Unclosed constructs.  ##
+## --------------------- ##
+
+AT_SETUP([Unclosed constructs])
+
+# Bison's scan-gram.l once forgot to STRING_FINISH some unclosed constructs, so
+# they were prepended to whatever it STRING_GROW'ed next.  It also threw them
+# away rather than returning them to the parser.  The effect was confusing
+# subsequent error messages.
+
+AT_DATA([input.y],
+[[%token A "a
+%token B "b"
+%token AB "ab" // Used to complain that "ab" was already used.
+%token C '1
+%token TWO "2"
+%token TICK_TWELVE "'12" // Used to complain that "'12" was already used.
+
+%%
+
+start: ;
+
+// Used to report a syntax error because it didn't see any kind of symbol
+// identifier.
+%type <f> 'a
+;
+%type <f> "a
+;
+// Used to report a syntax error because it didn't see braced code.
+%destructor { free ($$)
+]])
+
+AT_CHECK([bison -o input.c input.y], 1, [],
+[[input.y:1.10-2.0: missing `"' at end of line
+input.y:4.10-5.0: missing `'' at end of line
+input.y:14.11-15.0: missing `'' at end of line
+input.y:16.11-17.0: missing `"' at end of line
+input.y:19.13-20.0: missing `}' at end of file
+input.y:20.1: syntax error, unexpected end of file
+]])
+
+AT_CLEANUP
+
+
+## ------------------------- ##
+## %start after first rule.  ##
+## ------------------------- ##
+
+AT_SETUP([%start after first rule])
+
+# Bison once complained that a %start after the first rule was a redeclaration
+# of the start symbol.
+
+AT_DATA([input.y],
+[[%%
+false_start: ;
+start: false_start ;
+%start start;
+]])
+
+AT_CHECK([bison -o input.c input.y])
+
+AT_CLEANUP