AT_DATA([[input.y]],
[[%union { int ival; }
-%define api.value.type "%union"
+%define api.value.type union-directive
%%
exp: %empty;
]])
AT_CLEANUP
+## ---------------------------------------- ##
+## %yacc vs. %define api.value.type union. ##
+## ---------------------------------------- ##
+
+AT_SETUP([[%yacc vs. %define api.value.type union]])
+
+AT_DATA([[input.y]],
+[[%yacc
+%define api.value.type union
+%%
+exp: %empty;
+]])
+
+AT_BISON_CHECK([[input.y]], [[1]], [[]],
+[[input.y:2.9-22: error: '%yacc' and '%define api.value.type "union"' cannot be used together
+]])
+
+AT_CLEANUP
+
+
## ---------------- ##
## api.value.type. ##
## ---------------- ##
[
AT_SETUP([$1])
AT_KEYWORDS([api.value.type])
-AT_BISON_OPTION_PUSHDEFS([$1 $2])
+AT_BISON_OPTION_PUSHDEFS([%debug $1 $2])
AT_DATA_GRAMMAR([test.y],
[[%debug
m4_foreach([b4_skel], [[yacc.c], [glr.c], [lalr1.cc], [glr.cc]],
[# A built-in type.
AT_TEST([%skeleton "]b4_skel["
- %define api.value.type double],
+ %define api.value.type {double}],
[],
['1' '2' { printf ("%2.1f\n", $1 + $2); }],
["12"],
[AT_VAL = (res - '0') / 10.0],
[0.3])
+ # A typedef which looks like a Bison keyword, but it's using braces.
+ AT_TEST([%skeleton "]b4_skel["
+ %define api.value.type {variant}],
+ [%code requires { typedef double variant; }],
+ ['1' '2' { printf ("%2.1f\n", $1 + $2); }],
+ ["12"],
+ [AT_VAL = (res - '0') / 10.0],
+ [0.3])
+
# A user defined struct.
AT_TEST([%skeleton "]b4_skel["
- %define api.value.type "struct foo"],
+ %define api.value.type {struct foo}],
[%code requires { struct foo { float fval; int ival; }; }],
['1' '2'
{ printf ("%d %2.1f\n", $1.ival + $2.ival, $1.fval + $2.fval); }],
AT_VAL.fval = (res - '0') / 10.f],
[30 0.3])
+ # A user defined struct that uses pointers.
+ AT_TEST([%skeleton "]b4_skel["
+ %define api.value.type {struct bar}],
+ [%code requires
+ {
+ struct u
+ {
+ int ival;
+ };
+ struct bar
+ {
+ struct u *up;
+ };
+ }
+ %token <up->ival> '1' '2'
+ %printer { ]AT_SKEL_CC_IF([[yyoutput << $$]],
+ [[fprintf (yyo, "%d", $$)]])[; } <up->ival>
+ ],
+ ['1' '2'
+ {
+ printf ("%d %d\n", $1, $<up->ival>2);
+ free ($<up>1);
+ free ($<up>2);
+ }],
+ ["12"],
+ [AT_VAL.up = (struct u *) malloc (sizeof *AT_VAL.up);
+ assert (AT_VAL.up);
+ AT_VAL.up->ival = res - '0';],
+ [1 2])
+
# A user defined union.
AT_TEST([%skeleton "]b4_skel["
- %define api.value.type "union foo"],
+ %define api.value.type {union foo}],
[%code requires { union foo { float fval; int ival; }; }],
['1' '2' { printf ("%d %2.1f\n", $1.ival, $2.fval); }],
["12"],