1 files changed, 148 insertions, 0 deletions
diff --git a/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/BinaryOperator.php b/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/BinaryOperator.php
new file mode 100644
index 000000000..11c86b526
--- /dev/null
+++ b/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/BinaryOperator.php
@@ -0,0 +1,148 @@
+<?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;
+
+use function array_map;
+use function array_values;
+use function count;
+
+/**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ */
+abstract class BinaryOperator extends Operator
+{
+    /**
+     * @var Constraint[]
+     */
+    private $constraints = [];
+
+    public static function fromConstraints(Constraint ...$constraints): self
+    {
+        $constraint = new static;
+
+        $constraint->constraints = $constraints;
+
+        return $constraint;
+    }
+
+    /**
+     * @param mixed[] $constraints
+     */
+    public function setConstraints(array $constraints): void
+    {
+        $this->constraints = array_map(function ($constraint): Constraint
+        {
+            return $this->checkConstraint($constraint);
+        }, array_values($constraints));
+    }
+
+    /**
+     * Returns the number of operands (constraints).
+     */
+    final public function arity(): int
+    {
+        return count($this->constraints);
+    }
+
+    /**
+     * Returns a string representation of the constraint.
+     */
+    public function toString(): string
+    {
+        $reduced = $this->reduce();
+
+        if ($reduced !== $this) {
+            return $reduced->toString();
+        }
+
+        $text = '';
+
+        foreach ($this->constraints as $key => $constraint) {
+            $constraint = $constraint->reduce();
+
+            $text .= $this->constraintToString($constraint, $key);
+        }
+
+        return $text;
+    }
+
+    /**
+     * Counts the number of constraint elements.
+     */
+    public function count(): int
+    {
+        $count = 0;
+
+        foreach ($this->constraints as $constraint) {
+            $count += count($constraint);
+        }
+
+        return $count;
+    }
+
+    /**
+     * Returns the nested constraints.
+     */
+    final protected function constraints(): array
+    {
+        return $this->constraints;
+    }
+
+    /**
+     * Returns true if the $constraint needs to be wrapped with braces.
+     */
+    final protected function constraintNeedsParentheses(Constraint $constraint): bool
+    {
+        return $this->arity() > 1 && parent::constraintNeedsParentheses($constraint);
+    }
+
+    /**
+     * Reduces the sub-expression starting at $this by skipping degenerate
+     * sub-expression and returns first descendant constraint that starts
+     * a non-reducible sub-expression.
+     *
+     * See Constraint::reduce() for more.
+     */
+    protected function reduce(): Constraint
+    {
+        if ($this->arity() === 1 && $this->constraints[0] instanceof Operator) {
+            return $this->constraints[0]->reduce();
+        }
+
+        return parent::reduce();
+    }
+
+    /**
+     * Returns string representation of given operand in context of this operator.
+     *
+     * @param Constraint $constraint operand constraint
+     * @param int        $position   position of $constraint in this expression
+     */
+    private function constraintToString(Constraint $constraint, int $position): string
+    {
+        $prefix = '';
+
+        if ($position > 0) {
+            $prefix = (' ' . $this->operator() . ' ');
+        }
+
+        if ($this->constraintNeedsParentheses($constraint)) {
+            return $prefix . '( ' . $constraint->toString() . ' )';
+        }
+
+        $string = $constraint->toStringInContext($this, $position);
+
+        if ($string === '') {
+            $string = $constraint->toString();
+        }
+
+        return $prefix . $string;
+    }
+}