AlecRabbit\Spinner\Core\WidthMeasurer::assert()

Complexity

Conditions	3
Paths	2

Size

Total Lines	13
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
    private static function assert(Closure $measureFunction): void
    {
        $reflection = new ReflectionFunction($measureFunction);
        $returnType = $reflection->getReturnType()?->getName();

The method getName() does not exist on ReflectionType. It seems like you code against a sub-type of ReflectionType such as ReflectionNamedType.

        $parameterType = $reflection->getParameters()[0]->getType()?->getName();

        if ($parameterType === 'string' && $returnType === 'int') {
            return;
        }

        throw new InvalidArgumentException(
            'Invalid measure function signature.'
            . ' Signature expected to be: "function(string $string): int { //... }".'
        );