fixed the defined test when used on a constant, a map, or a sequence

CHANGELOG

@@ -1,5 +1,6 @@
 * 1.23.4 (2016-XX-XX)
 
+ * fixed the defined test when used on a constant, a map, or a sequence
  * undeprecated _self (should only be used to get the template name, not the template instance)
  * fixed parsing on PHP7
 

lib/Twig/Node/Expression/Test/Defined.php

@@ -25,17 +25,19 @@ class Twig_Node_Expression_Test_Defined extends Twig_Node_Expression_Test
 {
     public function __construct(Twig_NodeInterface $node, $name, Twig_NodeInterface $arguments = null, $lineno)
     {
-        parent::__construct($node, $name, $arguments, $lineno);
-
         if ($node instanceof Twig_Node_Expression_Name) {
             $node->setAttribute('is_defined_test', true);
         } elseif ($node instanceof Twig_Node_Expression_GetAttr) {
             $node->setAttribute('is_defined_test', true);
 
             $this->changeIgnoreStrictCheck($node);
+        } elseif ($node instanceof Twig_Node_Expression_Constant || $node instanceof Twig_Node_Expression_Array) {
+            $node = new Twig_Node_Expression_Constant(true, $node->getLine());
         } else {
             throw new Twig_Error_Syntax('The "defined" test only works with simple variables.', $this->getLine());
         }
+
+        parent::__construct($node, $name, $arguments, $lineno);
     }
 
     protected function changeIgnoreStrictCheck(Twig_Node_Expression_GetAttr $node)

test/Twig/Tests/Fixtures/tests/defined.test

@@ -26,6 +26,13 @@
 {{ object.self.foo                is     defined ? 'ok' : 'ko' }}
 {{ object.self.undefinedMethod    is     defined ? 'ko' : 'ok' }}
 {{ object.undefinedMethod.self    is     defined ? 'ko' : 'ok' }}
+{{ 0                              is     defined ? 'ok' : 'ko' }}
+{{ "foo"                          is     defined ? 'ok' : 'ko' }}
+{{ true                           is     defined ? 'ok' : 'ko' }}
+{{ false                          is     defined ? 'ok' : 'ko' }}
+{{ null                           is     defined ? 'ok' : 'ko' }}
+{{ [1, 2]                         is     defined ? 'ok' : 'ko' }}
+{{ { foo: "bar" }                 is     defined ? 'ok' : 'ko' }}
 --DATA--
 return array(
     'definedVar' => 'defined',
@@ -65,6 +72,13 @@ ok
 ok
 ok
 ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
 --DATA--
 return array(
     'definedVar' => 'defined',
@@ -106,3 +120,10 @@ ok
 ok
 ok
 ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok