blob: 6e9ffc5981842384f956c8675e9f1356f1ac34c9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
<?php
namespace NXP\Classes;
use NXP\Exception\IncorrectNumberOfFunctionParametersException;
use ReflectionException;
use ReflectionFunction;
class CustomFunction
{
public string $name = '';
/**
* @var callable $function
*/
public $function;
private int $requiredParamCount;
/**
* CustomFunction constructor.
*
* @throws ReflectionException
*/
public function __construct(string $name, callable $function)
{
$this->name = $name;
$this->function = $function;
$this->requiredParamCount = (new ReflectionFunction($function))->getNumberOfRequiredParameters();
}
/**
* @param array<Token> $stack
*
* @throws IncorrectNumberOfFunctionParametersException
*/
public function execute(array &$stack, int $paramCountInStack) : Token
{
if ($paramCountInStack < $this->requiredParamCount) {
throw new IncorrectNumberOfFunctionParametersException($this->name);
}
$args = [];
if ($paramCountInStack > 0) {
for ($i = 0; $i < $paramCountInStack; $i++) {
\array_unshift($args, \array_pop($stack)->value);
}
}
$result = \call_user_func_array($this->function, $args);
return new Token(Token::Literal, $result);
}
}
|
