Support generating helper files for real-time facades (#1455)

* Support generating helper files for real-time facades

Add changelog entry for real-time facades support

Mention real-time facades support in readme

Fix code style

Import

* Remove useless assertions

We cannot 100% control the output file has only the real-time facades, anything else can be in the final output

tests/RealTimeFacadesTest.php

@@ -0,0 +1,90 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests;
+
+use Barryvdh\LaravelIdeHelper\Generator;
+use Barryvdh\LaravelIdeHelper\IdeHelperServiceProvider;
+use Illuminate\Foundation\AliasLoader;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\View;
+use PhpParser\Lexer\Emulative;
+use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\Namespace_;
+use PhpParser\Parser\Php7;
+
+class RealTimeFacadesTest extends TestCase
+{
+    public function testRealTimeFacades()
+    {
+        // Add the views path to the view finder so the generator actually generates the file
+        View::addLocation(__DIR__ . '/../resources/views');
+
+        // Clear cached real-time facades
+        $cachedFacades = glob(storage_path('framework/cache/facade-*.php'));
+        foreach ($cachedFacades as $cachedFacade) {
+            unlink($cachedFacade);
+        }
+
+        // Copy stubs to storage path as if the real-time facades were cached by the framework
+        copy(
+            __DIR__ . '/stubs/facade-0e0385307adf5db34c7986ecbd11646061356ec8.php',
+            storage_path('framework/cache/facade-0e0385307adf5db34c7986ecbd11646061356ec8.php')
+        );
+        copy(
+            __DIR__ . '/stubs/facade-9431b04ec1494fc71a1bc848f020044aba2af7b1.php',
+            storage_path('framework/cache/facade-9431b04ec1494fc71a1bc848f020044aba2af7b1.php')
+        );
+
+        // new instance of the generator which we test
+        $generator = new Generator($this->app['config'], $this->app['view'], null, false);
+
+        // Clear aliases and macros to have a small output file
+        AliasLoader::getInstance()->setAliases([]);
+        Request::flushMacros();
+
+        // Generate the helper file and return the content
+        $content = $generator->generate();
+
+        $this->assertStringContainsString('namespace Facades\Illuminate\Foundation\Exceptions {', $content, 'Could not find Facades\Illuminate\Foundation\Exceptions namespace in the generated helper file.');
+        $this->assertStringContainsString('namespace Facades\App\Exceptions {', $content, 'Could not find Facades\App\Exceptions namespace in the generated helper file.');
+
+        $parsed = collect((new Php7(new Emulative()))->parse($content) ?: []);
+
+        // test the Facades\Illuminate\Foundation\Exceptions namespace in the generated helper file
+        $frameworkExceptionsNamespace = $parsed->first(function ($stmt) {
+            return ($stmt instanceof Namespace_) && $stmt->name->toString() === 'Facades\Illuminate\Foundation\Exceptions';
+        });
+        $this->assertNotNull($frameworkExceptionsNamespace, 'Could not find Facades\Illuminate\Foundation\Exceptions namespace');
+        $this->assertSame('Facades\Illuminate\Foundation\Exceptions', $frameworkExceptionsNamespace->name->toString());
+        $this->verifyNamespace($frameworkExceptionsNamespace, 'Illuminate\Foundation\Exceptions\Handler');
+
+        // test the Facades\App\Exceptions namespace in the generated helper file
+        $appExceptionsNamespace = $parsed->first(function ($stmt) {
+            return ($stmt instanceof Namespace_) && $stmt->name->toString() === 'Facades\App\Exceptions';
+        });
+        $this->assertNotNull($appExceptionsNamespace, 'Could not find Facades\App\Exceptions namespace');
+        $this->assertSame('Facades\App\Exceptions', $appExceptionsNamespace->name->toString());
+        $this->verifyNamespace($appExceptionsNamespace, 'App\Exceptions\Handler');
+    }
+
+    private function verifyNamespace(Namespace_ $namespace, $target)
+    {
+        $stmts = collect($namespace->stmts);
+
+        $this->assertInstanceOf(Class_::class, $stmts[0], 'Expected instance of Class_');
+
+        $statement = $stmts[0];
+        $this->assertArrayHasKey('comments', $statement->getAttributes());
+
+        $this->assertStringContainsString('@mixin \\' . $target, $statement->getAttributes()['comments'][0]->getText(), 'Mixin comment not found');
+        $this->assertSame(class_basename($target), $statement->name->toString(), 'Class name not found');
+        $this->assertSame($target, $statement->extends->toString(), 'Class extends not found');
+    }
+
+    protected function getPackageProviders($app)
+    {
+        return [IdeHelperServiceProvider::class];
+    }
+}

tests/stubs/facade-0e0385307adf5db34c7986ecbd11646061356ec8.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Facades\Illuminate\Foundation\Exceptions;
+
+use Illuminate\Support\Facades\Facade;
+
+/**
+ * @see \Illuminate\Foundation\Exceptions\Handler
+ */
+class Handler extends Facade
+{
+    /**
+     * Get the registered name of the component.
+     */
+    protected static function getFacadeAccessor(): string
+    {
+        return 'Illuminate\Foundation\Exceptions\Handler';
+    }
+}

tests/stubs/facade-9431b04ec1494fc71a1bc848f020044aba2af7b1.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Facades\App\Exceptions;
+
+use Illuminate\Support\Facades\Facade;
+
+/**
+ * @see \App\Exceptions\Handler
+ */
+class Handler extends Facade
+{
+    /**
+     * Get the registered name of the component.
+     */
+    protected static function getFacadeAccessor(): string
+    {
+        return 'App\Exceptions\Handler';
+    }
+}