Make sure shader rewriter stops immediately on an empty string.

The 'invalid' token didn't really serve a purpose. If a string contains
0 for any reason, it one has reached the end.

Task-number: QTBUG-39505
Change-Id: I3fc9b8f28dc223386a72bbfa28f70fcca0fde223
Reviewed-by: Laszlo Agocs <[email protected]>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/quick/scenegraph/coreapi/qsgshaderrewriter.cpp b/src/quick/scenegraph/coreapi/qsgshaderrewriter.cpp
index 9ff0971774..bffdf40bc1 100644
--- a/src/quick/scenegraph/coreapi/qsgshaderrewriter.cpp
+++ b/src/quick/scenegraph/coreapi/qsgshaderrewriter.cpp
@@ -52,7 +52,6 @@ namespace QSGShaderRewriter {
 struct Tokenizer {
 
     enum Token {
-        Token_Invalid,
         Token_Void,
         Token_OpenBrace,
         Token_CloseBrace,
@@ -75,7 +74,6 @@ struct Tokenizer {
 };
 
 const char *Tokenizer::NAMES[] = {
-    "Invalid",
     "Void",
     "OpenBrace",
     "CloseBrace",
@@ -167,7 +165,7 @@ Tokenizer::Token Tokenizer::next()
         }
     }
 
-    return Token_Invalid;
+    return Token_EOF;
 }
 
 }