From f92c48a231d5f98513e649340652baaf01f327ad Mon Sep 17 00:00:00 2001
From: Erik Verbruggen <erik.verbruggen@qt.io>
Date: Thu, 11 Oct 2018 10:48:19 +0200
Subject: JS: Check array subscripts for validity when generating code

Task-number: QTBUG-71079
Change-Id: I999130f3994f513bb9d2ca8ddaa94688451937fc
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
(cherry picked from commit b8f4005f132c26b842387e1ae5f492594dc03d86)
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
---
 src/qml/compiler/qv4codegen.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/qml/compiler/qv4codegen.cpp b/src/qml/compiler/qv4codegen.cpp
index e831fd48f5..7307ee3bd8 100644
--- a/src/qml/compiler/qv4codegen.cpp
+++ b/src/qml/compiler/qv4codegen.cpp
@@ -679,6 +679,8 @@ bool Codegen::visit(ArrayMemberExpression *ast)
         return false;
     }
     Reference index = expression(ast->expression);
+    if (hasError)
+        return false;
     _expr.setResult(Reference::fromSubscript(base, index));
     return false;
 }
-- 
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