X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/283f1e64820fc8f498a4e9ef5128a347b5876039..4c6cc1db755fcd0360558c5ff999926e453adf39:/tests/actions.at?ds=sidebyside diff --git a/tests/actions.at b/tests/actions.at index 2e707bde..d3460cf9 100644 --- a/tests/actions.at +++ b/tests/actions.at @@ -29,7 +29,7 @@ AT_SETUP([Mid-rule actions]) # instead of being attached to the empty rule dedicated to this # action. -AT_DATA([[input.y]], +AT_DATA_GRAMMAR([[input.y]], [[%{ # include # include @@ -82,13 +82,160 @@ AT_CLEANUP +## ---------------------- ## +## Actions after errors. ## +## ---------------------- ## + +AT_SETUP([Actions after errors]) + + + +AT_DATA_GRAMMAR([[input.y]], +[[%{ +#include +#include + +static int yylex (void); +static void yyerror (char const *); + +#define YYDEBUG 1 +%} +%union { int ival; } +%type 'x' ';' thing line input + +%% +input: + /* Nothing. */ + { + $$ = 0; + printf ("input(%d): /* Nothing */\n", $$); + } +| line input /* Right recursive to load the stack so that popping at + EOF can be exercised. */ + { + $$ = 2; + printf ("input(%d): line(%d) input(%d)\n", $$, $1, $2); + } +; + +line: + thing thing thing ';' + { + $$ = $1; + printf ("line(%d): thing(%d) thing(%d) thing(%d) ';'(%d)\n", + $$, $1, $2, $3, $4); + } +| thing thing ';' + { + $$ = $1; + printf ("line(%d): thing(%d) thing(%d) ';'(%d)\n", $$, $1, $2, $3); + } +| thing ';' + { + $$ = $1; + printf ("line(%d): thing(%d) ';'(%d)\n", $$, $1, $2); + } +| error ';' + { + $$ = -1; + printf ("line(%d): error ';'(%d)\n", $$, $2); + } +; + +thing: + 'x' + { + $$ = $1; + printf ("thing(%d): 'x'(%d)\n", $$, $1); + } +; +%% +static size_t counter; + +static int +yylex (void) +{ + static char const 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' + }; + + if (counter < sizeof input) + { + yylval.ival = counter; + printf ("sending: '%c' (value = %d)\n", input[counter], yylval.ival); + return input[counter++]; + } + else + { + printf ("sending: EOF\n"); + return EOF; + } +} + +static void +yyerror (char const *msg) +{ + printf ("%lu: %s\n", (unsigned long int) counter, msg); +} + +int +main (void) +{ + yydebug = !!getenv ("YYDEBUG"); + return yyparse (); +} +]]) + +AT_CHECK([bison -o input.c input.y]) +AT_COMPILE([input]) +AT_PARSER_CHECK([./input], 1, +[[sending: 'x' (value = 0) +thing(0): 'x'(0) +sending: 'x' (value = 1) +thing(1): 'x'(1) +sending: 'x' (value = 2) +thing(2): 'x'(2) +sending: 'x' (value = 3) +4: syntax error +sending: 'x' (value = 4) +sending: 'x' (value = 5) +sending: ';' (value = 6) +line(-1): error ';'(6) +sending: 'x' (value = 7) +thing(7): 'x'(7) +sending: 'x' (value = 8) +thing(8): 'x'(8) +sending: ';' (value = 9) +line(7): thing(7) thing(8) ';'(9) +sending: 'x' (value = 10) +thing(10): 'x'(10) +sending: ';' (value = 11) +line(10): thing(10) ';'(11) +sending: 'y' (value = 12) +13: syntax error +sending: EOF +]]) + +AT_CLEANUP + + + ## ---------------- ## ## Exotic Dollars. ## ## ---------------- ## AT_SETUP([Exotic Dollars]) -AT_DATA([[input.y]], +AT_DATA_GRAMMAR([[input.y]], [[%{ # include # include @@ -167,13 +314,13 @@ AT_SETUP([Printers and Destructors: $4]) # Make sure complex $n work. -AT_DATA([[input.y]], +AT_DATA_GRAMMAR([[input.y]], [[$4 %{ #include #include #include - +#define RANGE(Location) (Location).first_line, (Location).last_line static int yylex (void); static void yyerror (const char *msg); %} @@ -187,23 +334,23 @@ static void yyerror (const char *msg); } %type 'x' thing line input -%printer { fprintf (yyout, "%d@%d", $$, @$.first_line); } +%printer { fprintf (yyout, "%d@%d-%d", $$, RANGE (@$)); } input line thing 'x' %destructor - { fprintf (stdout, "Freeing nterm input (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); } input %destructor - { fprintf (stdout, "Freeing nterm line (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); } line %destructor - { fprintf (stdout, "Freeing nterm thing (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); } thing %destructor - { fprintf (stdout, "Freeing token 'x' (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); } 'x' %% @@ -211,14 +358,14 @@ input: /* Nothing. */ { $$ = 0; - printf ("input(%d@%d): /* Nothing */';'\n", $$, @$.first_line); + printf ("input (%d@%d-%d): /* Nothing */';'\n", $$, RANGE (@$)); } | line input /* Right recursive to load the stack so that popping at EOF can be exercised. */ { $$ = 2; - printf ("input(%d@%d): line(%d@%d) input(%d@%d)';'\n", - $$, @$.first_line, $1, @1.first_line, $2, @2.first_line); + printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)';'\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2)); } ; @@ -226,27 +373,27 @@ 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); + printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';'\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), + $3, RANGE (@3)); } | thing thing ';' { $$ = $1; - printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) ';'\n", - $$, @$.first_line, $1, @1.first_line, $2, @2.first_line); + printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) ';'\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2)); } | thing ';' { $$ = $1; - printf ("line(%d@%d): thing(%d@%d) ';'\n", - $$, @$.first_line, $1, @1.first_line); + printf ("line (%d@%d-%d): thing (%d@%d-%d) ';'\n", + $$, RANGE (@$), $1, RANGE (@1)); } | error ';' { $$ = -1; - printf ("line(%d@%d): error(@%d) ';'\n", - $$, @$.first_line, @1.first_line); + printf ("line (%d@%d-%d): error (@%d-%d) ';'\n", + $$, RANGE (@$), RANGE (@1)); } ; @@ -254,8 +401,8 @@ thing: 'x' { $$ = $1; - printf ("thing(%d@%d): 'x'(%d@%d)\n", - $$, @$.first_line, $1, @1.first_line); + printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1)); } ; %% @@ -264,7 +411,7 @@ yylex (void) { static const unsigned int input[] = { - /* Exericise the discarding of stack top and input until `error' + /* Exercise the discarding of stack top and input until `error' can be reduced. */ 'x', 'x', 'x', 'x', 'x', 'x', ';', @@ -280,9 +427,10 @@ yylex (void) { 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); + yylloc.first_line = yylloc.first_column = 10 * counter; + yylloc.last_line = yylloc.last_column = yylloc.first_line + 9; + printf ("sending: '%c' (%d@%d-%d)\n", + input[counter], yylval.ival, RANGE (yylloc)); return (int) input[counter++]; } else @@ -295,7 +443,7 @@ yylex (void) static void yyerror (const char *msg) { - fprintf (stdout, "%d: %s\n", yylloc.first_line, msg); + printf ("%d-%d: %s\n", RANGE (yylloc), msg); } int @@ -304,10 +452,10 @@ main (void) yydebug = !!getenv ("YYDEBUG"); if (yyparse ()) { - fprintf (stdout, "Parsing FAILED.\n"); + printf ("Parsing FAILED.\n"); exit (1); } - fprintf (stdout, "Successful parse.\n"); + printf ("Successful parse.\n"); return 0; } ]]) @@ -315,40 +463,40 @@ main (void) 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: 'x' (0@0-9) +thing (0@0-9): 'x' (0@0-9) +sending: 'x' (1@10-19) +thing (1@10-19): 'x' (1@10-19) +sending: 'x' (2@20-29) +thing (2@20-29): 'x' (2@20-29) +sending: 'x' (3@30-39) +30-39: syntax error, unexpected 'x', expecting ';' +Freeing nterm thing (2@20-29) +Freeing nterm thing (1@10-19) +Freeing nterm thing (0@0-9) +Freeing token 'x' (3@30-39) +sending: 'x' (4@40-49) +Freeing token 'x' (4@40-49) +sending: 'x' (5@50-59) +Freeing token 'x' (5@50-59) +sending: ';' (6@60-69) +line (-1@50-69): error (@50-59) ';' +sending: 'x' (7@70-79) +thing (7@70-79): 'x' (7@70-79) +sending: 'x' (8@80-89) +thing (8@80-89): 'x' (8@80-89) +sending: ';' (9@90-99) +line (7@70-99): thing (7@70-79) thing (8@80-89) ';' +sending: 'x' (10@100-109) +thing (10@100-109): 'x' (10@100-109) +sending: ';' (11@110-119) +line (10@100-119): thing (10@100-109) ';' +sending: 'y' (12@120-129) +120-129: syntax error, unexpected $undefined, expecting $end or 'x' sending: EOF -Freeing nterm line (10@100) -Freeing nterm line (7@70) -Freeing nterm line (-1@50) +Freeing nterm line (10@100-119) +Freeing nterm line (7@70-99) +Freeing nterm line (-1@50-69) Parsing FAILED. ]])