bug #32870 #32853 Check if $this->parameters is array. (ABGEO07)

This PR was submitted for the 4.3 branch but it was squashed and merged into the 3.4 branch instead (closes #32870).

Discussion
----------

| Q             | A
| ------------- | ---
| Branch?     | 4.3
| Bug fix?      | yes
| New feature?  | no
| Tests pass?   | yes
| Fixed tickets | #32853
| License       | MIT

Commits
-------

7cf9ed6 #32853 Check if $this->parameters is array.

src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php

@@ -969,7 +969,7 @@ private function startClass($class, $baseClass, $baseClassWithNamespace)
  */
 class $class extends $baseClass
 {
-    private \$parameters;
+    private \$parameters = [];
     private \$targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_constructor_without_arguments.php

@@ -18,7 +18,7 @@
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\ConstructorWithoutArgumentsContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_mandatory_constructor_arguments.php

@@ -18,7 +18,7 @@
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\ConstructorWithMandatoryArgumentsContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_optional_constructor_arguments.php

@@ -18,7 +18,7 @@
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\ConstructorWithOptionalArgumentsContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_without_constructor.php

@@ -18,7 +18,7 @@
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\NoConstructorContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1-1.php

@@ -18,7 +18,7 @@
  */
 class Container extends \Symfony\Component\DependencyInjection\Dump\AbstractContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services13.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services19.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services24.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services26.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_EnvParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services33.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_as_files.txt

@@ -277,7 +277,7 @@ class ProjectServiceContainer extends Container
 {
     private $buildParameters;
     private $containerDir;
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct(array $buildParameters = [], $containerDir = __DIR__)

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_adawson.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_private.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Almost_Circular_Private extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_public.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Almost_Circular_Public extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_array_params.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_base64_env.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Base64Parameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_dedup_lazy_proxy.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_deep_graph.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Deep_Graph extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_env_in_id.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_requires.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_self_ref.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Inline_Self_Ref extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_legacy_privates.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Legacy_Privates extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_locator.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_frozen.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_in_expression.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_rot13_env.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Rot13Parameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_subscriber.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_tsantos.php

@@ -16,7 +16,7 @@
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_uninitialized_ref.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Uninitialized_Reference extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_unsupported_characters.php

@@ -16,7 +16,7 @@
  */
 class Symfony_DI_PhpDumper_Test_Unsupported_Characters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()