-## --------------------------------- ##
-## Default %printer and %destructor. ##
-## --------------------------------- ##
+## ----------------------------------------- ##
+## Default tagless %printer and %destructor. ##
+## ----------------------------------------- ##
# Check that the right %printer and %destructor are called, that they're not
# called for $end, and that $$ and @$ work correctly.
-AT_SETUP([Default %printer and %destructor])
+AT_SETUP([Default tagless %printer and %destructor])
AT_DATA_GRAMMAR([[input.y]],
[[%error-verbose
%}
%printer {
- fprintf (yyoutput, "Default printer for '%c' @ %d", $$, @$.first_column);
-} %symbol-default
+ fprintf (yyoutput, "<*> printer should not be called.\n");
+} <*>
+
+%printer {
+ fprintf (yyoutput, "<> printer for '%c' @ %d", $$, @$.first_column);
+} <>
%destructor {
- fprintf (stdout, "Default destructor for '%c' @ %d.\n", $$, @$.first_column);
-} %symbol-default
+ fprintf (stdout, "<> destructor for '%c' @ %d.\n", $$, @$.first_column);
+} <>
%printer {
fprintf (yyoutput, "'b'/'c' printer for '%c' @ %d", $$, @$.first_column);
fprintf (stdout, "'b'/'c' destructor for '%c' @ %d.\n", $$, @$.first_column);
} 'b' 'c'
+%destructor {
+ fprintf (yyoutput, "<*> destructor should not be called.\n");
+} <*>
+
%%
start: 'a' 'b' 'c' 'd' 'e' { $$ = 'S'; USE(($1, $2, $3, $4, $5)); } ;
AT_CHECK([bison -o input.c input.y])
AT_COMPILE([input])
AT_PARSER_CHECK([./input], 1,
-[[Default destructor for 'd' @ 4.
+[[<> destructor for 'd' @ 4.
'b'/'c' destructor for 'c' @ 3.
'b'/'c' destructor for 'b' @ 2.
-Default destructor for 'a' @ 1.
+<> destructor for 'a' @ 1.
]],
[[Starting parse
Entering state 0
-Reading a token: Next token is token 'a' (1.1-1.1: Default printer for 'a' @ 1)
-Shifting token 'a' (1.1-1.1: Default printer for 'a' @ 1)
+Reading a token: Next token is token 'a' (1.1-1.1: <> printer for 'a' @ 1)
+Shifting token 'a' (1.1-1.1: <> printer for 'a' @ 1)
Entering state 1
Reading a token: Next token is token 'b' (1.2-1.2: 'b'/'c' printer for 'b' @ 2)
Shifting token 'b' (1.2-1.2: 'b'/'c' printer for 'b' @ 2)
Reading a token: Next token is token 'c' (1.3-1.3: 'b'/'c' printer for 'c' @ 3)
Shifting token 'c' (1.3-1.3: 'b'/'c' printer for 'c' @ 3)
Entering state 5
-Reading a token: Next token is token 'd' (1.4-1.4: Default printer for 'd' @ 4)
-Shifting token 'd' (1.4-1.4: Default printer for 'd' @ 4)
+Reading a token: Next token is token 'd' (1.4-1.4: <> printer for 'd' @ 4)
+Shifting token 'd' (1.4-1.4: <> printer for 'd' @ 4)
Entering state 6
Reading a token: Now at end of input.
syntax error, unexpected $end, expecting 'e'
-Error: popping token 'd' (1.4-1.4: Default printer for 'd' @ 4)
+Error: popping token 'd' (1.4-1.4: <> printer for 'd' @ 4)
Stack now 0 1 3 5
Error: popping token 'c' (1.3-1.3: 'b'/'c' printer for 'c' @ 3)
Stack now 0 1 3
Error: popping token 'b' (1.2-1.2: 'b'/'c' printer for 'b' @ 2)
Stack now 0 1
-Error: popping token 'a' (1.1-1.1: Default printer for 'a' @ 1)
+Error: popping token 'a' (1.1-1.1: <> printer for 'a' @ 1)
Stack now 0
Cleanup: discarding lookahead token $end (1.5-1.5: )
Stack now 0
-## ----------------------------------- ##
-## Per-type %printer and %destructor. ##
-## ----------------------------------- ##
+## ------------------------------------------------------ ##
+## Default tagged and per-type %printer and %destructor. ##
+## ------------------------------------------------------ ##
-AT_SETUP([Per-type %printer and %destructor])
+AT_SETUP([Default tagged and per-type %printer and %destructor])
AT_DATA_GRAMMAR([[input.y]],
[[%error-verbose
# define USE(SYM)
%}
+%printer {
+ fprintf (yyoutput, "<> printer should not be called.\n");
+} <>
+
%union { int field0; int field1; int field2; }
%type <field0> start 'a' 'g'
%type <field1> 'e'
%type <field2> 'f'
%printer {
- fprintf (yyoutput, "%%symbol-default/<field2>/e printer");
-} %symbol-default 'e' <field2>
+ fprintf (yyoutput, "<*>/<field2>/e printer");
+} <*> 'e' <field2>
%destructor {
- fprintf (stdout, "%%symbol-default/<field2>/e destructor.\n");
-} %symbol-default 'e' <field2>
+ fprintf (stdout, "<*>/<field2>/e destructor.\n");
+} <*> 'e' <field2>
%type <field1> 'b'
%printer { fprintf (yyoutput, "<field1> printer"); } <field1>
%printer { fprintf (yyoutput, "'d' printer"); } 'd'
%destructor { fprintf (stdout, "'d' destructor.\n"); } 'd'
+%destructor {
+ fprintf (yyoutput, "<> destructor should not be called.\n");
+} <>
+
%%
start:
AT_CHECK([bison -o input.c input.y])
AT_COMPILE([input])
AT_PARSER_CHECK([./input], 1,
-[[%symbol-default/<field2>/e destructor.
-%symbol-default/<field2>/e destructor.
+[[<*>/<field2>/e destructor.
+<*>/<field2>/e destructor.
'd' destructor.
'c' destructor.
<field1> destructor.
-%symbol-default/<field2>/e destructor.
+<*>/<field2>/e destructor.
]],
[[Starting parse
Entering state 0
-Reading a token: Next token is token 'a' (%symbol-default/<field2>/e printer)
-Shifting token 'a' (%symbol-default/<field2>/e printer)
+Reading a token: Next token is token 'a' (<*>/<field2>/e printer)
+Shifting token 'a' (<*>/<field2>/e printer)
Entering state 1
Reading a token: Next token is token 'b' (<field1> printer)
Shifting token 'b' (<field1> printer)
Reading a token: Next token is token 'd' ('d' printer)
Shifting token 'd' ('d' printer)
Entering state 6
-Reading a token: Next token is token 'e' (%symbol-default/<field2>/e printer)
-Shifting token 'e' (%symbol-default/<field2>/e printer)
+Reading a token: Next token is token 'e' (<*>/<field2>/e printer)
+Shifting token 'e' (<*>/<field2>/e printer)
Entering state 7
-Reading a token: Next token is token 'f' (%symbol-default/<field2>/e printer)
-Shifting token 'f' (%symbol-default/<field2>/e printer)
+Reading a token: Next token is token 'f' (<*>/<field2>/e printer)
+Shifting token 'f' (<*>/<field2>/e printer)
Entering state 8
Reading a token: Now at end of input.
syntax error, unexpected $end, expecting 'g'
-Error: popping token 'f' (%symbol-default/<field2>/e printer)
+Error: popping token 'f' (<*>/<field2>/e printer)
Stack now 0 1 3 5 6 7
-Error: popping token 'e' (%symbol-default/<field2>/e printer)
+Error: popping token 'e' (<*>/<field2>/e printer)
Stack now 0 1 3 5 6
Error: popping token 'd' ('d' printer)
Stack now 0 1 3 5
Stack now 0 1 3
Error: popping token 'b' (<field1> printer)
Stack now 0 1
-Error: popping token 'a' (%symbol-default/<field2>/e printer)
+Error: popping token 'a' (<*>/<field2>/e printer)
Stack now 0
Cleanup: discarding lookahead token $end ()
Stack now 0
## ------------------------------------------------------------- ##
-## Default %printer and %destructor for user-defined end token. ##
+## Default %printer and %destructor for user-defined end token. ##
## ------------------------------------------------------------- ##
AT_SETUP([Default %printer and %destructor for user-defined end token])
-AT_DATA_GRAMMAR([[input.y]],
+# _AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(TYPED)
+# -----------------------------------------------------------------------------
+m4_define([_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN],
+[m4_if($1, 0,
+ [m4_pushdef([kind], []) m4_pushdef([not_kind], [*])],
+ [m4_pushdef([kind], [*]) m4_pushdef([not_kind], [])])
+
+AT_DATA_GRAMMAR([[input]]$1[[.y]],
[[%error-verbose
%debug
%locations
# define USE(SYM)
%}
+%destructor {
+ fprintf (yyoutput, "<]]not_kind[[> destructor should not be called.\n");
+} <]]not_kind[[>
+
%token END 0
%printer {
- fprintf (yyoutput, "Default printer for '%c' @ %d", $$, @$.first_column);
-} %symbol-default
+ fprintf (yyoutput, "<]]kind[[> for '%c' @ %d", $$, @$.first_column);
+} <]]kind[[>
%destructor {
- fprintf (stdout, "Default destructor for '%c' @ %d.\n", $$, @$.first_column);
-} %symbol-default
+ fprintf (stdout, "<]]kind[[> for '%c' @ %d.\n", $$, @$.first_column);
+} <]]kind[[>
+
+%printer {
+ fprintf (yyoutput, "<]]not_kind[[> printer should not be called.\n");
+} <]]not_kind[[>
+
+]]m4_if($1, 0, [[[
+]]],
+[[[%union { char tag; }
+%type <tag> start END]]])[[
%%
static int called;
if (called++)
abort ();
- yylval = 'E';
+ yylval]]m4_if($1, 0,, [[[.tag]]])[[ = 'E';
yylloc.first_line = yylloc.last_line = 1;
yylloc.first_column = yylloc.last_column = 1;
return 0;
}
]])
-AT_CHECK([bison -o input.c input.y])
-AT_COMPILE([input])
-AT_PARSER_CHECK([./input], 0,
-[[Default destructor for 'E' @ 1.
-Default destructor for 'S' @ 1.
+AT_CHECK([bison -o input$1.c input$1.y])
+AT_COMPILE([input$1])
+AT_PARSER_CHECK([./input$1], 0,
+[[<]]kind[[> for 'E' @ 1.
+<]]kind[[> for 'S' @ 1.
]],
[[Starting parse
Entering state 0
-Reducing stack by rule 1 (line 35):
--> $$ = nterm start (1.1-1.1: Default printer for 'S' @ 1)
+Reducing stack by rule 1 (line 46):
+-> $$ = nterm start (1.1-1.1: <]]kind[[> for 'S' @ 1)
Stack now 0
Entering state 1
Reading a token: Now at end of input.
-Shifting token END (1.1-1.1: Default printer for 'E' @ 1)
+Shifting token END (1.1-1.1: <]]kind[[> for 'E' @ 1)
Entering state 2
Stack now 0 1 2
-Cleanup: popping token END (1.1-1.1: Default printer for 'E' @ 1)
-Cleanup: popping nterm start (1.1-1.1: Default printer for 'S' @ 1)
+Cleanup: popping token END (1.1-1.1: <]]kind[[> for 'E' @ 1)
+Cleanup: popping nterm start (1.1-1.1: <]]kind[[> for 'S' @ 1)
]])
+m4_popdef([kind])
+m4_popdef([not_kind])
+])
+
+_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(0)
+_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(1)
+
AT_CLEANUP
## Default %printer and %destructor are not for error or $undefined. ##
## ------------------------------------------------------------------ ##
-AT_SETUP([Default %printer and %destructor are not for error or \$undefined])
+AT_SETUP([Default %printer and %destructor are not for error or $undefined])
# If Bison were to apply the default %printer and %destructor to the error
# token or to $undefined:
%printer {
fprintf (yyoutput, "'%c'", $$);
-} %symbol-default
+} <> <*>
%destructor {
fprintf (stderr, "DESTROY '%c'\n", $$);
-} %symbol-default
+} <> <*>
%%
## Default %printer and %destructor are not for $accept. ##
## ------------------------------------------------------ ##
-AT_SETUP([Default %printer and %destructor are not for \$accept])
+AT_SETUP([Default %printer and %destructor are not for $accept])
# If YYSTYPE is a union and Bison were to apply the default %printer and
# %destructor to $accept:
%printer {
char chr = $$;
fprintf (yyoutput, "'%c'", chr);
-} %symbol-default
+} <> <*>
%destructor {
char chr = $$;
fprintf (stderr, "DESTROY '%c'\n", chr);
-} %symbol-default
+} <> <*>
%union { char chr; }
%type <chr> start
# define YY_LOCATION_PRINT(File, Loc)
%}
-%printer { fprintf (yyoutput, "%d", @$); } %symbol-default
-%destructor { fprintf (stderr, "DESTROY %d\n", @$); } %symbol-default
+%printer { fprintf (yyoutput, "%d", @$); } <>
+%destructor { fprintf (stderr, "DESTROY %d\n", @$); } <>
+%printer { fprintf (yyoutput, "<*> printer should not be called"); } <*>
+%destructor { fprintf (yyoutput, "<*> destructor should not be called"); } <*>
%%
]])
AT_CHECK([bison -o input.c input.y], 0,,
-[[input.y:31.3-23: warning: unset value: $$
-input.y:28.3-33.37: warning: unused value: $3
+[[input.y:33.3-23: warning: unset value: $$
+input.y:30.3-35.37: warning: unused value: $3
]])
AT_COMPILE([input])
AT_PARSER_CHECK([./input], 1,,
[[Starting parse
Entering state 0
-Reducing stack by rule 1 (line 28):
+Reducing stack by rule 1 (line 30):
-> $$ = nterm $@1 (: )
Stack now 0
Entering state 2
-Reducing stack by rule 2 (line 29):
+Reducing stack by rule 2 (line 31):
-> $$ = nterm @2 (: 2)
Stack now 0 2
Entering state 4
-Reducing stack by rule 3 (line 30):
+Reducing stack by rule 3 (line 32):
-> $$ = nterm @3 (: 3)
Stack now 0 2 4
Entering state 5
-Reducing stack by rule 4 (line 31):
+Reducing stack by rule 4 (line 33):
-> $$ = nterm @4 (: 4)
Stack now 0 2 4 5
Entering state 6
projects / bison.git / blobdiff