add psalm

Author: filecage

.github/workflows/tests.yaml

@@ -26,5 +26,8 @@ jobs:
       - name: phpstan
         run: vendor/bin/phpstan analyse -c phpstan.neon
 
+      - name: psalm
+        run: vendor/bin/psalm
+
       - name: Run Tests
         run: vendor/bin/phpunit --testdox

composer.json

@@ -25,6 +25,7 @@
     "require-dev": {
         "phpunit/phpunit": "^9.0",
         "php-http/psr7-integration-tests": "^1.2",
-        "phpstan/phpstan": "^1.9"
+        "phpstan/phpstan": "^1.9",
+        "vimeo/psalm": "^5.4"
     }
 }

psalm.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<psalm
+    errorLevel="1"
+    resolveFromConfigFile="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" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+    <issueHandlers>
+        <DocblockTypeContradiction errorLevel="info"/>
+    </issueHandlers>
+</psalm>

src/Uri.php

@@ -41,6 +41,7 @@ function __construct (string|Stringable|null $uri) {
 
             $this->originalUri = $uri;
             foreach ($uriComponents as $component => $value) {
+                /** @psalm-suppress InvalidScalarArgument TODO: Remove when psalm supports `ArrayShape` attribute */
                 match ($component) {
                     Component::HOST => $this->host = UriParser::parseHost($value),
                     Component::PATH => $this->path = UriParser::parsePath($value),