psalm.xml

<?xml version="1.0"?>
<psalm
        errorLevel="1"
        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"
        findUnusedBaselineEntry="true"
        findUnusedCode="true"
        taintAnalysis="true"
        strictBinaryOperands="true"
        ensureArrayStringOffsetsExist="true"
        ensureArrayIntOffsetsExist="true"
        reportMixedIssues="true"
        totallyTyped="true"
        sealAllMethods="true"
        sealAllProperties="true"
        memoizeMethodCallResults="true"
        hoistConstants="true"
        addParamTypes="true"
        checkForThrowsDocblock="true"
        checkForThrowsInGlobalScope="true"
        ignoreInternalFunctionFalseReturn="false"
        ignoreInternalFunctionNullReturn="false"
>
    <projectFiles>
        <directory name="src"/>
        <ignoreFiles>
            <directory name="vendor"/>
        </ignoreFiles>
    </projectFiles>
    <plugins>
        <pluginClass class="Psalm\PhpUnitPlugin\Plugin"/>
    </plugins>
    <issueHandlers>
        <MissingParamType errorLevel="error"/>
        <MissingReturnType errorLevel="error"/>
        <MissingPropertyType errorLevel="error"/>
        <MissingClosureReturnType errorLevel="error"/>
        <InvalidDocblock errorLevel="error"/>
        <MismatchingDocblockReturnType errorLevel="error"/>
        <MismatchingDocblockParamType errorLevel="error"/>
        <InvalidScalarArgument errorLevel="error"/>
        <InvalidReturnType errorLevel="error"/>
        <UndefinedClass errorLevel="error"/>
        <!-- Psalm cannot infer regex capture groups exist; PHPStan handles this correctly -->
        <PossiblyUndefinedIntArrayOffset errorLevel="info"/>
    </issueHandlers>
</psalm>