From 51d852140f469fa62026570764d9a5bd10f425b2 Mon Sep 17 00:00:00 2001
From: Dale Weiler <killfieldengine@gmail.com>
Date: Fri, 31 May 2013 03:56:12 +0000
Subject: [PATCH] Added diagnostic for case expressions

---
 diag.c   | 6 ++++++
 gmqcc.h  | 3 ++-
 parser.c | 2 ++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/diag.c b/diag.c
index 13d276f..009df34 100644
--- a/diag.c
+++ b/diag.c
@@ -156,6 +156,7 @@ static void diagnostic_feed(const char *file, size_t line, size_t beg, size_t en
     }
     
     switch (diagnostic) {
+        case DIAGNOSTIC_EXPRESSION_CASE:
         case DIAGNOSTIC_SEMICOLON:
             for (; len < vec_size(vec_last(read)->values); len++)
                 space += strlen(vec_last(read)->values[len]);
@@ -223,6 +224,11 @@ void diagnostic_calculate(const char *file, size_t line, size_t diagnostic) {
             linebeg++;
             marker = true;
             break;
+            
+        case DIAGNOSTIC_EXPRESSION_CASE:
+            linebeg++;
+            marker = true;
+            break;
 
         /* Catches the DIAGNOSTIC_NULL and out of range case */
         default:
diff --git a/gmqcc.h b/gmqcc.h
index 1beaf4d..9a41ae5 100644
--- a/gmqcc.h
+++ b/gmqcc.h
@@ -1029,7 +1029,8 @@ void            ftepp_add_macro        (struct ftepp_s *ftepp, const char *name,
 /*===================================================================*/
 enum {
     DIAGNOSTIC_NULL,
-    DIAGNOSTIC_SEMICOLON
+    DIAGNOSTIC_SEMICOLON,
+    DIAGNOSTIC_EXPRESSION_CASE
 };
 
 void diagnostic_destroy();
diff --git a/parser.c b/parser.c
index 907f6a6..3397856 100644
--- a/parser.c
+++ b/parser.c
@@ -3371,12 +3371,14 @@ static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression *
         if (!strcmp(parser_tokval(parser), "case")) {
             if (!parser_next(parser)) {
                 ast_delete(switchnode);
+                parser->diagnostic = DIAGNOSTIC_EXPRESSION_CASE;
                 parseerror(parser, "expected expression for case");
                 return false;
             }
             swcase.value = parse_expression_leave(parser, false, false, false);
             if (!swcase.value) {
                 ast_delete(switchnode);
+                parser->diagnostic = DIAGNOSTIC_EXPRESSION_CASE;
                 parseerror(parser, "expected expression for case");
                 return false;
             }
-- 
2.39.2