add missing (empty) default for swtch; close #364

src/class.c

@@ -620,6 +620,9 @@ mrb_get_args(mrb_state *mrb, const char *format, ...)
         }
       }
       break;
+    default:
+      mrb_raise(mrb, E_ARGUMENT_ERROR, "invalide argument specifier %c", c);
+      break;
     }
   }
   if (!c && argc > i) {

src/codegen.c

@@ -207,6 +207,8 @@ genop_peep(codegen_scope *s, mrb_code i, int val)
           return;
         }
         break;
+      default:
+	break;
       }
       break;
     case OP_SETIV:
@@ -240,6 +242,8 @@ genop_peep(codegen_scope *s, mrb_code i, int val)
         return;
       }
       break;
+    default:
+      break;
     }
   }
   genop(s, i);

src/parse.y

@@ -3041,6 +3041,8 @@ backref_error(parser_state *p, node *n)
   case NODE_BACK_REF:
     yyerror_i(p, "can't set variable $%c", (int)(intptr_t)n->cdr);
     break;
+  default:
+    break;
   }
 }
 
@@ -3722,7 +3724,7 @@ parser_yylex(parser_state *p)
     }
     if (isspace(c)) {
       if (!IS_ARG()) {
-	int c2 = 0;
+	int c2;
 	switch (c) {
 	case ' ':
 	  c2 = 's';
@@ -3742,6 +3744,9 @@ parser_yylex(parser_state *p)
 	case '\f':
 	  c2 = 'f';
 	  break;
+	default:
+	  c2 = 0;
+	  break;
 	}
 	if (c2) {
 	  char buf[256];

src/range.c

@@ -31,7 +31,11 @@ range_check(mrb_state *mrb, mrb_value a, mrb_value b)
     case MRB_TT_FIXNUM:
     case MRB_TT_FLOAT:
       return;
+    default:
+      break;
     }
+  default:
+    break;
   }
 
   mrb_p(mrb, a);

src/symbol.c

@@ -276,6 +276,7 @@ symname_p(const char *name)
       case '>':
         switch (*++m) {
           case '>': case '=': ++m; break;
+	default: break;
         }
         break;
 
@@ -319,7 +320,8 @@ id:
         while (is_identchar(*m)) m += 1;
         if (localid) {
             switch (*m) {
-              case '!': case '?': case '=': ++m;
+	    case '!': case '?': case '=': ++m;
+	    default: break;
             }
         }
         break;