fix

CHANGELOG.md

@@ -6,7 +6,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 * fix: Resolve correct model factory instance when application namespace is empty
-
+* fix: fix return types for App::environment() [#1303](https://github.com/nunomaduro/larastan/pull/1303)
 ### Fixed
 
 * fix: Remove stubs for `having()` and `orHaving()` QueryBuilder methods by @Maxoulak in [#1258](https://github.com/nunomaduro/larastan/pull/1258)

extension.neon

@@ -372,6 +372,10 @@ services:
         class: NunoMaduro\Larastan\Types\GenericEloquentBuilderTypeNodeResolverExtension
         tags:
             - phpstan.phpDoc.typeNodeResolverExtension
+    -
+        class: NunoMaduro\Larastan\Types\AppEnvironmentReturnTypeExtension
+        tags:
+            - phpstan.broker.dynamicMethodReturnTypeExtension
 
     -
         class: NunoMaduro\Larastan\Types\ModelProperty\ModelPropertyTypeNodeResolverExtension

src/Types/AppEnvironmentReturnTypeExtension.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace NunoMaduro\Larastan\Types;
+
+use Illuminate\Foundation\Application;
+use PhpParser\Node\Expr\MethodCall;
+use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\MethodReflection;
+use PHPStan\Type\BooleanType;
+use PHPStan\Type\DynamicMethodReturnTypeExtension;
+use PHPStan\Type\StringType;
+use PHPStan\Type\Type;
+
+class AppEnvironmentReturnTypeExtension implements DynamicMethodReturnTypeExtension
+{
+    public function getClass(): string
+    {
+        return Application::class;
+    }
+
+    public function isMethodSupported(MethodReflection $methodReflection): bool
+    {
+        return $methodReflection->getName() === 'environment';
+    }
+
+    public function getTypeFromMethodCall(
+        MethodReflection $methodReflection,
+        MethodCall $methodCall,
+        Scope $scope
+    ): Type {
+        if (count($methodCall->getArgs()) === 0) {
+            return new StringType();
+        }
+
+        return  new BooleanType();
+    }
+}

tests/Type/GeneralTypeTest.php

@@ -20,6 +20,7 @@ public function dataFileAsserts(): iterable
         yield from $this->gatherAssertTypes(__DIR__.'/data/model-properties-relations.php');
         yield from $this->gatherAssertTypes(__DIR__.'/data/route.php');
         yield from $this->gatherAssertTypes(__DIR__.'/data/conditionable.php');
+        yield from $this->gatherAssertTypes(__DIR__.'/data/blank-helper.php');
     }
 
     /**

tests/Type/data/blank-helper.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace BlankHelper;
+
+use App\User;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Support\Traits\Conditionable;
+use function PHPStan\Testing\assertType;
+
+assertType('string', app()->environment());
+assertType('bool', app()->environment('local'));
+assertType('bool', app()->environment(['local', 'production']));