From deb35868841fc3eb99228fe102a5b8ed1991d51f Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Mon, 25 Jan 2016 15:45:05 -0700
Subject: implement %% prefix operator

See #23

also make undefined constants use llvm undef value
---
 src/parser.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/parser.cpp')

diff --git a/src/parser.cpp b/src/parser.cpp
index 425651a4a2..b34d76aba3 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -64,6 +64,7 @@ static const char *prefix_op_str(PrefixOp prefix_op) {
         case PrefixOpDereference: return "*";
         case PrefixOpMaybe: return "?";
         case PrefixOpError: return "%";
+        case PrefixOpUnwrapError: return "%%";
     }
     zig_unreachable();
 }
@@ -1664,6 +1665,7 @@ static PrefixOp tok_to_prefix_op(Token *token) {
         case TokenIdStar: return PrefixOpDereference;
         case TokenIdMaybe: return PrefixOpMaybe;
         case TokenIdPercent: return PrefixOpError;
+        case TokenIdPercentPercent: return PrefixOpUnwrapError;
         case TokenIdBoolAnd: return PrefixOpAddressOf;
         default: return PrefixOpInvalid;
     }
-- 
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