From bbec03bb7af3fb0277a267e4ec5d38b58aa5cb46 Mon Sep 17 00:00:00 2001
From: Yukihiro Matsumoto <matz@ruby-lang.org>
Date: Fri, 13 Jul 2012 14:35:18 +0900
Subject: add missing (empty) default for swtch; close #364

---
 src/class.c         | 3 +++
 src/codegen.c       | 4 ++++
 src/parse.y         | 7 ++++++-
 src/range.c         | 4 ++++
 src/symbol.c        | 4 +++-
 tools/mrbc/mrbc.c   | 2 ++
 tools/mruby/mruby.c | 2 ++
 7 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/src/class.c b/src/class.c
index 9003c3bc5..783627a7d 100644
--- a/src/class.c
+++ b/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) {
diff --git a/src/codegen.c b/src/codegen.c
index 00c6b566d..3ef52a0d4 100644
--- a/src/codegen.c
+++ b/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);
diff --git a/src/parse.y b/src/parse.y
index 292e60cfa..13643f68e 100644
--- a/src/parse.y
+++ b/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];
diff --git a/src/range.c b/src/range.c
index b4d743e5f..703ad12aa 100644
--- a/src/range.c
+++ b/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);
diff --git a/src/symbol.c b/src/symbol.c
index 91076e293..baab0fb3c 100644
--- a/src/symbol.c
+++ b/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;
diff --git a/tools/mrbc/mrbc.c b/tools/mrbc/mrbc.c
index 55e2fcf32..8da37832a 100644
--- a/tools/mrbc/mrbc.c
+++ b/tools/mrbc/mrbc.c
@@ -114,6 +114,8 @@ parse_args(mrb_state *mrb, int argc, char **argv, struct _args *args)
         }
         else return -3;
         return 0;
+      default:
+	break;
       }
     }
     else if (args->rfp == NULL) {
diff --git a/tools/mruby/mruby.c b/tools/mruby/mruby.c
index 3628e79c9..12cdc86e9 100644
--- a/tools/mruby/mruby.c
+++ b/tools/mruby/mruby.c
@@ -110,6 +110,8 @@ append_cmdline:
       }
       else return -3;
       return 0;
+    default:
+      break;
     }
   }
 
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