psalm.xml

<?xml version="1.0"?>
<psalm
  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"
  errorLevel="1"
  resolveFromConfigFile="true"
  findUnusedBaselineEntry="true"
  findUnusedCode="false"
>
  <projectFiles>
    <directory name="src"/>
    <ignoreFiles>
      <file name="vendor.phar"/>
    </ignoreFiles>
  </projectFiles>
  <issueHandlers>
    <!-- These three will be tripped constantly because WordPress -->
    <UndefinedFunction errorLevel="suppress"/>
    <UndefinedConstant errorLevel="suppress"/>
    <UndefinedClass errorLevel="suppress"/>
    <!-- Suppress the complaint about $registrar just in this file -->
    <UndefinedGlobalVariable>
      <errorLevel type="suppress">
        <file name="src/di.php"/>
      </errorLevel>
    </UndefinedGlobalVariable>
  </issueHandlers>
</psalm>