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diff --git a/web/modules/contrib/drupalmoduleupgrader/src/Utility/Filter/ContainsLogicFilter.php b/web/modules/contrib/drupalmoduleupgrader/src/Utility/Filter/ContainsLogicFilter.php
new file mode 100644
index 000000000..82535df7e
--- /dev/null
+++ b/web/modules/contrib/drupalmoduleupgrader/src/Utility/Filter/ContainsLogicFilter.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Drupal\drupalmoduleupgrader\Utility\Filter;
+
+use Pharborist\Filter;
+use Pharborist\Functions\FunctionCallNode;
+use Pharborist\ParentNode;
+
+class ContainsLogicFilter {
+
+  /**
+   * Function calls which should not be considered logic.
+   *
+   * @var string[]
+   */
+  protected $whitelist = [];
+
+  /**
+   * Pharborist node types which are considered logic.
+   *
+   * @var string[]
+   */
+  protected static $logic = [
+    '\Pharborist\ControlStructures\IfNode',
+    '\Pharborist\ControlStructures\SwitchNode',
+    '\Pharborist\Objects\ClassMethodCallNode',
+    '\Pharborist\Objects\ObjectMethodCallNode',
+    '\Pharborist\Objects\NewNode',
+    '\Pharborist\Objects\ClassConstantLookupNode',
+  ];
+
+  /**
+   * Specify a function to be whitelisted so that it will not be considered
+   * logic.
+   *
+   * @param string ... $function
+   *  At least one function to add to the whitelist.
+   */
+  public function whitelist() {
+    $this->whitelist = array_unique(array_merge($this->whitelist, func_get_args()));
+  }
+
+  /**
+   * Tests if a function contains logic: any branching operator, function
+   * call, or object instantiation.
+   *
+   * @param \Pharborist\ParentNode $node
+   *  The node to test.
+   *
+   * @return boolean
+   */
+  public function __invoke(ParentNode $node) {
+    $function_calls = $node
+      ->find(Filter::isInstanceOf('\Pharborist\Functions\FunctionCallNode'))
+      ->not(function(FunctionCallNode $call) {
+        return in_array($call->getName()->getText(), $this->whitelist);
+      });
+
+    if ($function_calls->isEmpty()) {
+      $filter = call_user_func_array('\Pharborist\Filter::isInstanceOf', static::$logic);
+      return (boolean) $node->find($filter)->count();
+    }
+    else {
+      return TRUE;
+    }
+  }
+
+}