psalm.xml

<?xml version="1.0"?>
<psalm
    autoloader="bin/static-analyze-autoloader.php"
    findUnusedVariablesAndParams="true"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="https://getpsalm.org/schema/config"
    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
>
    <projectFiles>
        <directory name="src"/>
        <directory name="tests"/>
        <ignoreFiles>
            <directory name="../../../platform"/> <!-- would otherwise inspect Shopware -->
            <directory name="../../../vendor"/> <!-- would otherwise inspect vendor -->
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>
        <LessSpecificImplementedReturnType>
            <!-- <deprecated> tag:v2.0.0 - Remove once the Token class is final -->
            <errorLevel type="info">
                <file name="src/PayPal/Api/Token.php"/>
            </errorLevel>
        </LessSpecificImplementedReturnType>
        <DeprecatedClass>
            <!-- <deprecated> tag:v2.0.0 - Remove once the Token class is final -->
            <errorLevel type="info">
                <referencedClass name="Swag\PayPal\PayPal\Api\Token"/>
            </errorLevel>
        </DeprecatedClass>

        <InvalidReturnType>
            <errorLevel type="info">
                <directory name="tests/Mock"/>
            </errorLevel>
        </InvalidReturnType>

        <DocblockTypeContradiction>
            <errorLevel type="info">
                <file name="src/PayPal/Api/Common/PayPalStruct.php"/>
            </errorLevel>
        </DocblockTypeContradiction>

        <InternalMethod>
            <errorLevel type="info">
                <directory name="tests"/>
            </errorLevel>
        </InternalMethod>

        <DeprecatedInterface>
            <errorLevel type="info">
                <!-- TODO - Remove with Shopware 6.3 compatibility -->
                <referencedClass name="Shopware\Core\System\Snippet\Files\SnippetFileInterface"/>
            </errorLevel>
        </DeprecatedInterface>

        <DeprecatedTrait>
            <errorLevel type="info">
                <directory name="tests"/>
            </errorLevel>
        </DeprecatedTrait>

        <DeprecatedMethod>
            <errorLevel type="info">
                <referencedMethod name="Shopware\Core\Framework\Test\TestCaseBase\AssertArraySubsetBehaviour::silentAssertArraySubset"/>
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <referencedMethod name="Swag\PayPal\Checkout\SPBCheckout\SPBMarksData::isUseAlternativePaymentMethods"/>
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <referencedMethod name="Swag\PayPal\Checkout\ExpressCheckout\ExpressCheckoutButtonData::getAddLineItemUrl"/>
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <referencedMethod name="Swag\PayPal\Checkout\SPBCheckout\SPBCheckoutButtonData::getErrorParameter"/>
            </errorLevel>
        </DeprecatedMethod>

        <DeprecatedConstant>
            <errorLevel type="info">
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <file name="src/Checkout/SPBCheckout/SPBCheckoutButtonData.php"/>
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <file name="tests/Checkout/SPBCheckout/SPBCheckoutSubscriberTest.php"/>
            </errorLevel>
        </DeprecatedConstant>

        <DeprecatedProperty>
            <errorLevel type="info">
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <referencedProperty name="Swag\PayPal\Checkout\Plus\PlusPaymentFinalizeController::$logger"/>
                <!-- <deprecated> tag:v2.0.0 - Remove with 2.0.0 -->
                <referencedProperty name="Swag\PayPal\Checkout\ExpressCheckout\ExpressCheckoutController::$logger"/>
            </errorLevel>
        </DeprecatedProperty>

        <UnresolvableInclude>
            <errorLevel type="info">
                <file name="tests/TestBootstrap.php"/>
            </errorLevel>
        </UnresolvableInclude>

        <PossiblyNullReference>
            <errorLevel type="info">
                <!-- Psalm does not recognize the markTestSkipped method call as terminating -->
                <file name="tests/Checkout/ExpressCheckout/ExpressCheckoutSubscriberTest.php"/>
            </errorLevel>
        </PossiblyNullReference>

        <!-- level 3 issues - slightly lazy code writing, but provably low false-negatives -->
        <PropertyNotSetInConstructor errorLevel="info"/>
        <MissingConstructor errorLevel="info"/>
    </issueHandlers>
</psalm>