Add basic phpstan level 1 config/ci

Author: Seldaek

.github/workflows/phpstan.yml

@@ -0,0 +1,34 @@
+name: "PHPStan"
+
+on:
+  - push
+  - pull_request
+
+env:
+  COMPOSER_FLAGS: "--ansi --no-interaction --no-progress --prefer-dist"
+
+jobs:
+  tests:
+    name: "PHPStan"
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "intl, zip"
+          ini-values: "memory_limit=-1"
+          php-version: "7.4"
+
+      - name: "Update dependencies"
+        run: "composer update ${{ env.COMPOSER_FLAGS }}"
+
+      - name: Run PHPStan
+        run: |
+          composer require --dev phpstan/phpstan:^0.12.93 marc-mabe/php-enum-phpstan ${{ env.COMPOSER_FLAGS }}
+          vendor/bin/phpstan analyse

phpstan.neon

@@ -0,0 +1,8 @@
+parameters:
+    level: 1
+    paths:
+        - ./src/
+    ignoreErrors: []
+
+includes:
+    - vendor/marc-mabe/php-enum-phpstan/extension.neon

src/JsonSchema/Constraints/BaseConstraint.php

@@ -165,4 +165,21 @@ public static function jsonPatternToPhpRegex($pattern)
     {
         return '~' . str_replace('~', '\\~', $pattern) . '~u';
     }
+
+    /**
+     * @param JsonPointer $pointer
+     *
+     * @return string property path
+     */
+    protected function convertJsonPointerIntoPropertyPath(JsonPointer $pointer)
+    {
+        $result = array_map(
+            function ($path) {
+                return sprintf(is_numeric($path) ? '[%d]' : '.%s', $path);
+            },
+            $pointer->getPropertyPaths()
+        );
+
+        return trim(implode('', $result), '.');
+    }
 }

src/JsonSchema/Constraints/Constraint.php

@@ -215,21 +215,4 @@ protected function getTypeCheck()
     {
         return $this->factory->getTypeCheck();
     }
-
-    /**
-     * @param JsonPointer $pointer
-     *
-     * @return string property path
-     */
-    protected function convertJsonPointerIntoPropertyPath(JsonPointer $pointer)
-    {
-        $result = array_map(
-            function ($path) {
-                return sprintf(is_numeric($path) ? '[%d]' : '.%s', $path);
-            },
-            $pointer->getPropertyPaths()
-        );
-
-        return trim(implode('', $result), '.');
-    }
 }