Error occurred while determining the dependencies being used

[kafkiansky]

I am getting an error about the unused ext-bcmath extension, although it is being used.

Code:

<?php

declare(strict_types=1);

namespace Thesis\Protoc\Plugin;

use BcMath\Number;
use Thesis\Protobuf\Compiler\Plugin\CodeGeneratorRequest;
use Thesis\Protobuf\Compiler\Plugin\CodeGeneratorResponse;

/**
 * @api
 */
final readonly class Compiler
{
    public function compile(CodeGeneratorRequest $request): CodeGeneratorResponse
    {
        // ....
        return new CodeGeneratorResponse(
            supportFeatures: new Number(CodeGeneratorResponse\Feature::FEATURE_PROTO3_OPTIONAL->value | CodeGeneratorResponse\Feature::FEATURE_SUPPORTS_EDITIONS->value),
            files: $files,
        );
    }

composer.json:

{
    "name": "thesis/protoc-plugin",
    "require": {
        "php": "^8.4",
        "ext-bcmath": "*",
        "amphp/byte-stream": "2.x-dev",
        "nette/php-generator": "^4.2@dev",
        "thesis/protobuf": "0.1.x-dev"
    },
    "require-dev": {
        "phpunit/phpunit": "^12.4",
        "symfony/var-dumper": "^8.0"
    },
    "minimum-stability": "dev",
    "autoload": {
        "psr-4": {
            "Thesis\\Protoc\\": "src/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Thesis\\Protoc\\": "tests/"
        }
    },
    "config": {
        "lock": false,
        "sort-packages": true
    }
}

composer-dependency-analyser.php;

<?php

declare(strict_types=1);

use ShipMonk\ComposerDependencyAnalyser\Config\Configuration;

$config = new Configuration();

return $config
    ->addPathToScan(__DIR__ . '/src', isDev: false)
    ->addPathToScan(__DIR__ . '/bin', isDev: false)
    ->addPathToScan(__DIR__ . '/tests', isDev: true);

Command output:

composer-dependency-analyser 
Using config /workspace/composer-dependency-analyser.php

Found 1 unused dependency!
(those are listed in composer.json, but no usage was found in scanned paths)

  • ext-bcmath

(scanned 21 files in 0.002 s)

The error goes away if I additionally specify the extension in require-dev.

[janedbal]

Can you prepare minimal reproducible repo? I cannot reproduce it.