From cab8e2d38ae1c8c7fb75022f7d9b0539a0a86d4e Mon Sep 17 00:00:00 2001
From: Alexander Kiryukhin <a.kiryukhin@mail.ru>
Date: Fri, 15 May 2020 21:51:23 +0300
Subject: Massive refactoring

More clean structure
Parsing without regular expressions
---
 src/NXP/Classes/Operator.php | 69 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 src/NXP/Classes/Operator.php

(limited to 'src/NXP/Classes/Operator.php')

diff --git a/src/NXP/Classes/Operator.php b/src/NXP/Classes/Operator.php
new file mode 100644
index 0000000..53550a9
--- /dev/null
+++ b/src/NXP/Classes/Operator.php
@@ -0,0 +1,69 @@
+<?php
+
+
+namespace NXP\Classes;
+
+
+use NXP\Exception\IncorrectExpressionException;
+use ReflectionFunction;
+
+class Operator
+{
+    /**
+     * @var string
+     */
+    public $operator;
+
+    /**
+     * @var bool
+     */
+    public $isRightAssoc;
+
+    /**
+     * @var int
+     */
+    public $priority;
+
+    /**
+     * @var callable<\SplStack>
+     */
+    public $function;
+
+    /**
+     * @var int
+     */
+    public $places;
+
+    /**
+     * Operator constructor.
+     * @param string $operator
+     * @param bool $isRightAssoc
+     * @param int $priority
+     * @param callable $function
+     */
+    public function __construct(string $operator, bool $isRightAssoc, int $priority, callable $function)
+    {
+        $this->operator = $operator;
+        $this->isRightAssoc = $isRightAssoc;
+        $this->priority = $priority;
+        $this->function = $function;
+        $this->function = $function;
+        $reflection = new ReflectionFunction($function);
+        $this->places = $reflection->getNumberOfParameters();
+    }
+
+    public function execute(&$stack)
+    {
+        if (count($stack) < $this->places) {
+            throw new IncorrectExpressionException();
+        }
+        $args = [];
+        for ($i = 0; $i < $this->places; $i++) {
+            array_unshift($args, array_pop($stack)->value);
+        }
+
+        $result = call_user_func_array($this->function, $args);
+
+        return new Token(Token::Literal, $result);
+    }
+}
\ No newline at end of file
-- 
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