Improved exception message for accessing object without ArrayAccess as array

diff --git a/ext/twig/twig.c b/ext/twig/twig.c
index 6ad823d..a36f192 100644 (file)
--- a/ext/twig/twig.c
+++ b/ext/twig/twig.c
@@ -827,20 +827,25 @@ PHP_FUNCTION(twig_template_get_attributes)
                                return;
                        }
 /*
-                       if (is_object($object)) {
-                               throw new Twig_Error_Runtime(sprintf('Key "%s" in object (with ArrayAccess) of type "%s" does not exist', $arrayItem, get_class($object)), -1, $this->getTemplateName());
+                       if ($object instanceof ArrayAccess) {
+                               $message = sprintf('Key "%s" in object with ArrayAccess of class "%s" does not exist', $arrayItem, get_class($object));
+                       } elseif (is_object($object)) {
+                               $message = sprintf('Impossible to access a key "%s" on an object of class "%s" that does not implement ArrayAccess interface', $item, get_class($object));
                        } elseif (is_array($object)) {
-                               throw new Twig_Error_Runtime(sprintf('Key "%s" for array with keys "%s" does not exist', $arrayItem, implode(', ', array_keys($object))), -1, $this->getTemplateName());
+                               $message = sprintf('Key "%s" for array with keys "%s" does not exist', $arrayItem, implode(', ', array_keys($object)));
                        } elseif (Twig_Template::ARRAY_CALL === $type) {
-                               throw new Twig_Error_Runtime(sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object), -1, $this->getTemplateName());
+                               $message = sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
                        } else {
-                               throw new Twig_Error_Runtime(sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s")', $item, gettype($object), $object), -1, $this->getTemplateName());
+                               $message = sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
                        }
+                       throw new Twig_Error_Runtime($message, -1, $this->getTemplateName());
                }
        }
 */
-                       if (Z_TYPE_P(object) == IS_OBJECT) {
-                               TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Key \"%s\" in object (with ArrayAccess) of type \"%s\" does not exist", item, TWIG_GET_CLASS_NAME(object TSRMLS_CC));
+                       if (TWIG_INSTANCE_OF(object, zend_ce_arrayaccess TSRMLS_CC)) {
+                               TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Key \"%s\" in object with ArrayAccess of class \"%s\" does not exist", item, TWIG_GET_CLASS_NAME(object TSRMLS_CC));
+                       } else if (Z_TYPE_P(object) == IS_OBJECT) {
+                               TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Impossible to access a key \"%s\" on an object of class \"%s\" that does not implement ArrayAccess interface", item, TWIG_GET_CLASS_NAME(object TSRMLS_CC));
                        } else if (Z_TYPE_P(object) == IS_ARRAY) {
                                TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Key \"%s\" for array with keys \"%s\" does not exist", item, TWIG_IMPLODE_ARRAY_KEYS(", ", object TSRMLS_CC));
                        } else {

diff --git a/lib/Twig/Template.php b/lib/Twig/Template.php
index 4ae5968..b9210b0 100644 (file)
--- a/lib/Twig/Template.php
+++ b/lib/Twig/Template.php
@@ -371,15 +371,19 @@ abstract class Twig_Template implements Twig_TemplateInterface
                     return null;
                 }
 
-                if (is_object($object)) {
-                    throw new Twig_Error_Runtime(sprintf('Key "%s" in object (with ArrayAccess) of type "%s" does not exist', $arrayItem, get_class($object)), -1, $this->getTemplateName());
+                if ($object instanceof ArrayAccess) {
+                    $message = sprintf('Key "%s" in object with ArrayAccess of class "%s" does not exist', $arrayItem, get_class($object));
+                } elseif (is_object($object)) {
+                    $message = sprintf('Impossible to access a key "%s" on an object of class "%s" that does not implement ArrayAccess interface', $item, get_class($object));
                 } elseif (is_array($object)) {
-                    throw new Twig_Error_Runtime(sprintf('Key "%s" for array with keys "%s" does not exist', $arrayItem, implode(', ', array_keys($object))), -1, $this->getTemplateName());
+                    $message = sprintf('Key "%s" for array with keys "%s" does not exist', $arrayItem, implode(', ', array_keys($object)));
                 } elseif (Twig_Template::ARRAY_CALL === $type) {
-                    throw new Twig_Error_Runtime(sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object), -1, $this->getTemplateName());
+                    $message = sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
                 } else {
-                    throw new Twig_Error_Runtime(sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s")', $item, gettype($object), $object), -1, $this->getTemplateName());
+                    $message = sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
                 }
+
+                throw new Twig_Error_Runtime($message, -1, $this->getTemplateName());
             }
         }
 

diff --git a/test/Twig/Tests/TemplateTest.php b/test/Twig/Tests/TemplateTest.php
index 25c7a4a..53fa54b 100644 (file)
--- a/test/Twig/Tests/TemplateTest.php
+++ b/test/Twig/Tests/TemplateTest.php
@@ -31,6 +31,7 @@ class Twig_Tests_TemplateTest extends PHPUnit_Framework_TestCase
             'array'           => array('foo' => 'foo'),
             'array_access'    => new Twig_TemplateArrayAccessObject(),
             'magic_exception' => new Twig_TemplateMagicPropertyObjectWithException(),
+            'object'          => new stdClass(),
         );
 
         try {
@@ -46,7 +47,7 @@ class Twig_Tests_TemplateTest extends PHPUnit_Framework_TestCase
         $tests = array(
             array('{{ string["a"] }}', 'Impossible to access a key ("a") on a string variable ("foo") in "%s" at line 1', false),
             array('{{ array["a"] }}', 'Key "a" for array with keys "foo" does not exist in "%s" at line 1', false),
-            array('{{ array_access["a"] }}', 'Key "a" in object (with ArrayAccess) of type "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
+            array('{{ array_access["a"] }}', 'Key "a" in object with ArrayAccess of class "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
             array('{{ string.a }}', 'Impossible to access an attribute ("a") on a string variable ("foo") in "%s" at line 1', false),
             array('{{ string.a() }}', 'Impossible to invoke a method ("a") on a string variable ("foo") in "%s" at line 1', false),
             array('{{ array.a }}', 'Key "a" for array with keys "foo" does not exist in "%s" at line 1', false),
@@ -54,6 +55,7 @@ class Twig_Tests_TemplateTest extends PHPUnit_Framework_TestCase
             array('{{ array_access.a }}', 'Method "a" for object "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
             array('{% macro foo(obj) %}{{ obj.missing_method() }}{% endmacro %}{{ _self.foo(array_access) }}', 'Method "missing_method" for object "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
             array('{{ magic_exception.test }}', 'An exception has been thrown during the rendering of a template ("Hey! Don\'t try to isset me!") in "%s" at line 1.', false),
+            array('{{ object["a"] }}', 'Impossible to access a key "a" on an object of class "stdClass" that does not implement ArrayAccess interface in "%s" at line 1', false),
         );
 
         if (function_exists('twig_template_get_attributes')) {