1 files changed, 55 insertions, 0 deletions
diff --git a/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/Operator.php b/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/Operator.php
new file mode 100644
index 000000000..3f51a0f40
--- /dev/null
+++ b/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/Operator.php
@@ -0,0 +1,55 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Framework\Constraint;
+
+/**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ */
+abstract class Operator extends Constraint
+{
+    /**
+     * Returns the name of this operator.
+     */
+    abstract public function operator(): string;
+
+    /**
+     * Returns this operator's precedence.
+     *
+     * @see https://www.php.net/manual/en/language.operators.precedence.php
+     */
+    abstract public function precedence(): int;
+
+    /**
+     * Returns the number of operands.
+     */
+    abstract public function arity(): int;
+
+    /**
+     * Validates $constraint argument.
+     */
+    protected function checkConstraint($constraint): Constraint
+    {
+        if (!$constraint instanceof Constraint) {
+            return new IsEqual($constraint);
+        }
+
+        return $constraint;
+    }
+
+    /**
+     * Returns true if the $constraint needs to be wrapped with braces.
+     */
+    protected function constraintNeedsParentheses(Constraint $constraint): bool
+    {
+        return $constraint instanceof self &&
+               $constraint->arity() > 1 &&
+               $this->precedence() <= $constraint->precedence();
+    }
+}