move exTpl to lib, re #4119

Merge request studip/studip!2963

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/exTpl/NotExpression.php b/lib/exTpl/NotExpression.php
new file mode 100644
index 0000000..cf7472d
--- /dev/null
+++ b/lib/exTpl/NotExpression.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace exTpl;
+
+/**
+ * NotExpression represents the logical negation operator ('!').
+ */
+class NotExpression extends UnaryExpression
+{
+    /**
+     * Returns the value of this expression.
+     *
+     * @param Context $context symbol table
+     */
+    public function value(Context $context): bool
+    {
+        return !$this->expr->value($context);
+    }
+}