From d5f091c11cd63e763fef9c4ed366af9ca26ebefe Mon Sep 17 00:00:00 2001
From: "ben.franksen" <ben.franksen@online.de>
Date: Sun, 8 Jan 2012 17:57:14 +0000
Subject: [PATCH] snc: fixed parser stack overflow
This appeared when compiling deeply nested statements.
The solution is to use a dynamically growing stack.
---
src/snc/snl.lem | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/snc/snl.lem b/src/snc/snl.lem
index a489e9b4..6777372b 100644
--- a/src/snc/snl.lem
+++ b/src/snc/snl.lem
@@ -31,6 +31,15 @@ in the file LICENSE that is included with this distribution.
"syntax error near token '%s'\n", TOKEN.str);
}
+// %stack_overflow {
+// report("parser stack overflow\n");
+// }
+
+// A stack size of 0 (zero) means stack size gets dynamically increased
+// on demand i.e. stack size is essentially unlimited. This is important
+// because some rules like the one for IF/ELSE statements employ left-recursion.
+%stack_size 0
+
%token_type { Token }
%default_type { Expr* }
--
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