yacc: beware of "uninitialized uses" warnings

[bison.git] / tests / types.at

diff --git a/tests/types.at b/tests/types.at
index b0c3a3641e851d1712f1c404ab7f1ee091a92bca..6275903c256de833a7701b6d252603830befee35 100644 (file)
--- a/tests/types.at
+++ b/tests/types.at
@@ -26,7 +26,7 @@ AT_SETUP([[%union vs. %define api.value.type]])
 
 AT_DATA([[input.y]],
 [[%union { int ival; }
 
 AT_DATA([[input.y]],
 [[%union { int ival; }

-%define api.value.type "%union"
+%define api.value.type union-directive

 %%
 exp: %empty;
 ]])
 %%
 exp: %empty;
 ]])


@@ -37,6 +37,26 @@ AT_BISON_CHECK([[input.y]], [[1]], [[]],
 
 AT_CLEANUP
 
 
 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.  ##
 ## ---------------- ##
 ## ---------------- ##
 ## api.value.type.  ##
 ## ---------------- ##


@@ -53,7 +73,7 @@ m4_pushdef([AT_TEST],
 [
 AT_SETUP([$1])
 AT_KEYWORDS([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
 
 AT_DATA_GRAMMAR([test.y],
 [[%debug
 


@@ -88,16 +108,25 @@ AT_CLEANUP
 m4_foreach([b4_skel], [[yacc.c], [glr.c], [lalr1.cc], [glr.cc]],
  [# A built-in type.
   AT_TEST([%skeleton "]b4_skel["
 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])
 
           [],
           ['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["
   # 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); }],
           [%code requires { struct foo { float fval; int ival; }; }],
           ['1' '2'
              { printf ("%d %2.1f\n", $1.ival + $2.ival, $1.fval + $2.fval); }],


@@ -106,9 +135,39 @@ m4_foreach([b4_skel], [[yacc.c], [glr.c], [lalr1.cc], [glr.cc]],
            AT_VAL.fval = (res - '0') / 10.f],
           [30 0.3])
 
            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["
   # 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"],
           [%code requires { union foo { float fval; int ival; }; }],
           ['1' '2' { printf ("%d %2.1f\n", $1.ival, $2.fval); }],
           ["12"],