PhpOffice\PhpSpreadsheet\Calculation\Engine\CyclicReferenceStack

Complexity

Total Complexity

6

Size/Duplication

Total Lines	67
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

71.43%

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	count()	0	4	1
A	push()	0	4	1
A	pop()	0	4	1
A	onStack()	0	4	1
A	clear()	0	4	1
A	showStack()	0	4	1

<?php

namespace PhpOffice\PhpSpreadsheet\Calculation\Engine;

class CyclicReferenceStack
{
    /**
     * The call stack for calculated cells.
     *
     * @var mixed[]
     */
    private $stack = [];

    /**
     * Return the number of entries on the stack.
     *
     * @return int
     */
    public function count()
    {
        return count($this->stack);
    }

    /**
     * Push a new entry onto the stack.
     *
     * @param mixed $value
     */
    public function push($value)
    {
        $this->stack[$value] = $value;
    }

    /**
     * Pop the last entry from the stack.
     *
     * @return mixed
     */
    public function pop()
    {
        return array_pop($this->stack);
    }

    /**
     * Test to see if a specified entry exists on the stack.
     *
     * @param mixed $value The value to test
     */
    public function onStack($value)
    {
        return isset($this->stack[$value]);
    }

    /**
     * Clear the stack.
     */
    public function clear()
    {
        $this->stack = [];
    }

    /**
     * Return an array of all entries on the stack.
     *
     * @return mixed[]
     */
    public function showStack()
    {
        return $this->stack;
    }
}