# HG changeset patch
# User Michael Busby <mibusby@gmail.com>
# Date 1346817802 25200
# Node ID b98a56a533d0d519d801df8c684944465484b813
# Parent  5f3c91fa6058b40d08fbb5a4f417fdad43255929
Empty structs throw a compiler error instead of crashing the vm. (bug 5475, r=dvander).

diff -r 5f3c91fa6058 -r b98a56a533d0 src/Messages.tbl
--- a/src/Messages.tbl	Thu Sep 13 23:58:22 2012 -0700
+++ b/src/Messages.tbl	Tue Sep 04 21:03:22 2012 -0700
@@ -73,4 +73,4 @@
 MSG(CaseMustBeConstant,             SyntaxError,            "case expression must be a constant")
 MSG(CaseHasSameValue,               SyntaxError,            "case value appears twice in the same switch")
 MSG(CaseMustBeInteger,              SyntaxError,            "switch may only operate on integer values")
-
+MSG(StructCantBeEmpty,              SyntaxError,            "struct cannot be declared without any fields")
diff -r 5f3c91fa6058 -r b98a56a533d0 src/Parser.cpp
--- a/src/Parser.cpp	Thu Sep 13 23:58:22 2012 -0700
+++ b/src/Parser.cpp	Tue Sep 04 21:03:22 2012 -0700
@@ -1126,6 +1126,11 @@
     if (!expect(TOK_RBRACE))
         return NULL;
 
+    if (fields->empty()) {
+        cc_.reportError(pos, Message_StructCantBeEmpty);
+        return NULL;
+    }
+
     return new (pool_) StructureStatement(pos, type, fields);
 }