temp evaluation work

setup/modulediscovery/evaluation/expression/ClassConstFetchEvaluator.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace evaluation\expression;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Expr\ClassConstFetch;
+
+class ClassConstFetchEvaluator implements iExprEvaluator {
+	public function GetHandledExpressionType(): string {
+		return ClassConstFetch::class;
+	}
+
+	public function Evaluate(Expr $oExpr): mixed {
+		/** @var ClassConstFetch $oExpr */
+
+		$sClassName = $oExpr->class->name;
+		$sProperty = $oExpr->name->name;
+
+		if (class_exists($sClassName)){
+			$class = new \ReflectionClass($sClassName);
+			if (array_key_exists($sProperty, $class->getConstants())) {
+				$oReflectionConstant = $class->getReflectionConstant($sProperty);
+				if ($oReflectionConstant->isPublic()){
+					return $class->getConstant($sProperty);
+				}
+			}
+		}
+
+		if ('class' === $sProperty){
+			return $sClassName;
+		}
+
+		return null;
+	}
+}