feature symfony#23617 [PropertyInfo] Add hassers for accessors prefixes (sebdec)

This PR was submitted for the 3.3 branch but it was squashed and merged into the 4.1-dev branch instead (closes symfony#23617).

Discussion
----------

[PropertyInfo] Add hassers for accessors prefixes

| Q             | A
| ------------- | ---
| Branch?       | 3.3
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | None
| License       | MIT
| Doc PR        | -

In the component PropertyInfo
In the class ReflectionExtractor Add hassers in the accessors prefixes

Because I think it's common to have readable properties with method like this:
hasChildren()

Commits
-------

03bce5e [PropertyInfo] Add hassers for accessors prefixes

Author: fabpot

src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php

@@ -34,7 +34,7 @@ class ReflectionExtractor implements PropertyListExtractorInterface, PropertyTyp
     /**
      * @internal
      */
-    public static $defaultAccessorPrefixes = array('is', 'can', 'get');
+    public static $defaultAccessorPrefixes = array('is', 'can', 'get', 'has');
 
     /**
      * @internal
@@ -178,7 +178,7 @@ private function extractFromAccessor(string $class, string $property): ?array
             return array($this->extractFromReflectionType($reflectionType));
         }
 
-        if (in_array($prefix, array('is', 'can'))) {
+        if (in_array($prefix, array('is', 'can', 'has'))) {
             return array(new Type(Type::BUILTIN_TYPE_BOOL));
         }
 

src/Symfony/Component/PropertyInfo/Tests/Extractors/PhpDocExtractorTest.php

@@ -88,7 +88,8 @@ public function typesProvider()
             array('d', array(new Type(Type::BUILTIN_TYPE_BOOL)), null, null),
             array('e', array(new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true, new Type(Type::BUILTIN_TYPE_INT), new Type(Type::BUILTIN_TYPE_RESOURCE))), null, null),
             array('f', array(new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true, new Type(Type::BUILTIN_TYPE_INT), new Type(Type::BUILTIN_TYPE_OBJECT, false, 'DateTime'))), null, null),
-            array('g', array(new Type(Type::BUILTIN_TYPE_ARRAY, true, null, true)), 'Nullable array.', null),
+            array('g', array(new Type(Type::BUILTIN_TYPE_BOOL, true)), null, null),
+            array('array', array(new Type(Type::BUILTIN_TYPE_ARRAY, true, null, true)), 'Nullable array.', null),
             array('donotexist', null, null, null),
             array('staticGetter', null, null, null),
             array('staticSetter', null, null, null),

src/Symfony/Component/PropertyInfo/Tests/Extractors/ReflectionExtractorTest.php

@@ -40,7 +40,7 @@ public function testGetProperties()
                 'collection',
                 'B',
                 'Guid',
-                'g',
+                'array',
                 'emptyVar',
                 'foo',
                 'foo2',
@@ -56,6 +56,7 @@ public function testGetProperties()
                 'd',
                 'e',
                 'f',
+                'g',
             ),
             $this->extractor->getProperties('Symfony\Component\PropertyInfo\Tests\Fixtures\Dummy')
         );
@@ -196,10 +197,12 @@ public function getReadableProperties()
             array('d', true),
             array('e', false),
             array('f', false),
+            array('g', true),
             array('Id', true),
             array('id', true),
             array('Guid', true),
             array('guid', false),
+            array('guid', false),
         );
     }
 
@@ -226,6 +229,7 @@ public function getWritableProperties()
             array('d', false),
             array('e', true),
             array('f', true),
+            array('g', false),
             array('Id', false),
             array('Guid', true),
             array('guid', false),

src/Symfony/Component/PropertyInfo/Tests/Fixtures/Dummy.php

@@ -66,7 +66,7 @@ class Dummy extends ParentDummy
      *
      * @var array|null
      */
-    public $g;
+    public $array;
 
     /**
      * This should not be removed.

src/Symfony/Component/PropertyInfo/Tests/Fixtures/ParentDummy.php

@@ -75,4 +75,11 @@ public function addE($e)
     public function removeF(\DateTime $f)
     {
     }
+
+    /**
+     * @return bool|null
+     */
+    public function hasG()
+    {
+    }
 }