diff --git a/examples/01-blog/Blog/Type/CommentType.php b/examples/01-blog/Blog/Type/CommentType.php
index b89aa54..cbcad4d 100644
--- a/examples/01-blog/Blog/Type/CommentType.php
+++ b/examples/01-blog/Blog/Type/CommentType.php
@@ -36,8 +36,9 @@ class CommentType extends ObjectType
                 ];
             },
             'resolveField' => function($value, $args, $context, ResolveInfo $info) {
-                if (method_exists($this, $info->fieldName)) {
-                    return $this->{$info->fieldName}($value, $args, $context, $info);
+                $method = 'resolve' . ucfirst($info->fieldName);
+                if (method_exists($this, $method)) {
+                    return $this->{$method}($value, $args, $context, $info);
                 } else {
                     return $value->{$info->fieldName};
                 }
@@ -46,7 +47,7 @@ class CommentType extends ObjectType
         parent::__construct($config);
     }
 
-    public function author(Comment $comment)
+    public function resolveAuthor(Comment $comment)
     {
         if ($comment->isAnonymous) {
             return null;
@@ -54,7 +55,7 @@ class CommentType extends ObjectType
         return DataSource::findUser($comment->authorId);
     }
 
-    public function parent(Comment $comment)
+    public function resolveParent(Comment $comment)
     {
         if ($comment->parentId) {
             return DataSource::findComment($comment->parentId);
@@ -62,13 +63,13 @@ class CommentType extends ObjectType
         return null;
     }
 
-    public function replies(Comment $comment, $args)
+    public function resolveReplies(Comment $comment, $args)
     {
         $args += ['after' => null];
         return DataSource::findReplies($comment->id, $args['limit'], $args['after']);
     }
 
-    public function totalReplyCount(Comment $comment)
+    public function resolveTotalReplyCount(Comment $comment)
     {
         return DataSource::countReplies($comment->id);
     }
diff --git a/examples/01-blog/Blog/Type/StoryType.php b/examples/01-blog/Blog/Type/StoryType.php
index 38cf73f..32cea4e 100644
--- a/examples/01-blog/Blog/Type/StoryType.php
+++ b/examples/01-blog/Blog/Type/StoryType.php
@@ -76,8 +76,9 @@ class StoryType extends ObjectType
                 Types::node()
             ],
             'resolveField' => function($value, $args, $context, ResolveInfo $info) {
-                if (method_exists($this, $info->fieldName)) {
-                    return $this->{$info->fieldName}($value, $args, $context, $info);
+                $method = 'resolve' . ucfirst($info->fieldName);
+                if (method_exists($this, $method)) {
+                    return $this->{$method}($value, $args, $context, $info);
                 } else {
                     return $value->{$info->fieldName};
                 }
@@ -86,12 +87,12 @@ class StoryType extends ObjectType
         parent::__construct($config);
     }
 
-    public function author(Story $story)
+    public function resolveAuthor(Story $story)
     {
         return DataSource::findUser($story->authorId);
     }
 
-    public function affordances(Story $story, $args, AppContext $context)
+    public function resolveAffordances(Story $story, $args, AppContext $context)
     {
         $isViewer = $context->viewer === DataSource::findUser($story->authorId);
         $isLiked = DataSource::isLikedBy($story->id, $context->viewer->id);
@@ -108,17 +109,17 @@ class StoryType extends ObjectType
         return $affordances;
     }
 
-    public function hasViewerLiked(Story $story, $args, AppContext $context)
+    public function resolveHasViewerLiked(Story $story, $args, AppContext $context)
     {
         return DataSource::isLikedBy($story->id, $context->viewer->id);
     }
 
-    public function totalCommentCount(Story $story)
+    public function resolveTotalCommentCount(Story $story)
     {
         return DataSource::countComments($story->id);
     }
 
-    public function comments(Story $story, $args)
+    public function resolveComments(Story $story, $args)
     {
         $args += ['after' => null];
         return DataSource::findComments($story->id, $args['limit'], $args['after']);
diff --git a/examples/01-blog/Blog/Type/UserType.php b/examples/01-blog/Blog/Type/UserType.php
index 347da46..9960b62 100644
--- a/examples/01-blog/Blog/Type/UserType.php
+++ b/examples/01-blog/Blog/Type/UserType.php
@@ -45,8 +45,9 @@ class UserType extends ObjectType
                 Types::node()
             ],
             'resolveField' => function($value, $args, $context, ResolveInfo $info) {
-                if (method_exists($this, $info->fieldName)) {
-                    return $this->{$info->fieldName}($value, $args, $context, $info);
+                $method = 'resolve' . ucfirst($info->fieldName);
+                if (method_exists($this, $method)) {
+                    return $this->{$method}($value, $args, $context, $info);
                 } else {
                     return $value->{$info->fieldName};
                 }
@@ -55,12 +56,12 @@ class UserType extends ObjectType
         parent::__construct($config);
     }
 
-    public function photo(User $user, $args)
+    public function resolvePhoto(User $user, $args)
     {
         return DataSource::getUserPhoto($user->id, $args['size']);
     }
 
-    public function lastStoryPosted(User $user)
+    public function resolveLastStoryPosted(User $user)
     {
         return DataSource::findLastStoryFor($user->id);
     }
diff --git a/src/Utils/MixedStore.php b/src/Utils/MixedStore.php
index 83342b6..76d5444 100644
--- a/src/Utils/MixedStore.php
+++ b/src/Utils/MixedStore.php
@@ -16,7 +16,12 @@ class MixedStore implements \ArrayAccess
     /**
      * @var array
      */
-    private $scalarStore;
+    private $standardStore;
+
+    /**
+     * @var array
+     */
+    private $floatStore;
 
     /**
      * @var \SplObjectStorage
@@ -51,17 +56,41 @@ class MixedStore implements \ArrayAccess
     /**
      * @var bool
      */
-    private $nullValueIsSet = false;
+    private $nullValueIsSet;
+
+    /**
+     * @var mixed
+     */
+    private $trueValue;
+
+    /**
+     * @var bool
+     */
+    private $trueValueIsSet;
+
+    /**
+     * @var mixed
+     */
+    private $falseValue;
+
+    /**
+     * @var bool
+     */
+    private $falseValueIsSet;
 
     /**
      * MixedStore constructor.
      */
     public function __construct()
     {
-        $this->scalarStore = [];
+        $this->standardStore = [];
+        $this->floatStore = [];
         $this->objectStore = new \SplObjectStorage();
         $this->arrayKeys = [];
         $this->arrayValues = [];
+        $this->nullValueIsSet = false;
+        $this->trueValueIsSet = false;
+        $this->falseValueIsSet = false;
     }
 
     /**
@@ -78,8 +107,17 @@ class MixedStore implements \ArrayAccess
      */
     public function offsetExists($offset)
     {
-        if (is_scalar($offset)) {
-            return array_key_exists($offset, $this->scalarStore);
+        if (false === $offset) {
+            return $this->falseValueIsSet;
+        }
+        if (true === $offset) {
+            return $this->trueValueIsSet;
+        }
+        if (is_int($offset) || is_string($offset)) {
+            return array_key_exists($offset, $this->standardStore);
+        }
+        if (is_float($offset)) {
+            return array_key_exists((string) $offset, $this->floatStore);
         }
         if (is_object($offset)) {
             return $this->objectStore->offsetExists($offset);
@@ -110,8 +148,17 @@ class MixedStore implements \ArrayAccess
      */
     public function offsetGet($offset)
     {
-        if (is_scalar($offset)) {
-            return $this->scalarStore[$offset];
+        if (true === $offset) {
+            return $this->trueValue;
+        }
+        if (false === $offset) {
+            return $this->falseValue;
+        }
+        if (is_int($offset) || is_string($offset)) {
+            return $this->standardStore[$offset];
+        }
+        if (is_float($offset)) {
+            return $this->floatStore[(string)$offset];
         }
         if (is_object($offset)) {
             return $this->objectStore->offsetGet($offset);
@@ -147,8 +194,16 @@ class MixedStore implements \ArrayAccess
      */
     public function offsetSet($offset, $value)
     {
-        if (is_scalar($offset)) {
-            $this->scalarStore[$offset] = $value;
+        if (false === $offset) {
+            $this->falseValue = $value;
+            $this->falseValueIsSet = true;
+        } else if (true === $offset) {
+            $this->trueValue = $value;
+            $this->trueValueIsSet = true;
+        } else if (is_int($offset) || is_string($offset)) {
+            $this->standardStore[$offset] = $value;
+        } else if (is_float($offset)) {
+            $this->floatStore[(string)$offset] = $value;
         } else if (is_object($offset)) {
             $this->objectStore[$offset] = $value;
         } else if (is_array($offset)) {
@@ -173,8 +228,16 @@ class MixedStore implements \ArrayAccess
      */
     public function offsetUnset($offset)
     {
-        if (is_scalar($offset)) {
-            unset($this->scalarStore[$offset]);
+        if (true === $offset) {
+            $this->trueValue = null;
+            $this->trueValueIsSet = false;
+        } else if (false === $offset) {
+            $this->falseValue = null;
+            $this->falseValueIsSet = false;
+        } else if (is_int($offset) || is_string($offset)) {
+            unset($this->standardStore[$offset]);
+        } else if (is_float($offset)) {
+            unset($this->floatStore[(string)$offset]);
         } else if (is_object($offset)) {
             $this->objectStore->offsetUnset($offset);
         } else if (is_array($offset)) {
diff --git a/tests/Utils/MixedStoreTest.php b/tests/Utils/MixedStoreTest.php
new file mode 100644
index 0000000..9ebfe6f
--- /dev/null
+++ b/tests/Utils/MixedStoreTest.php
@@ -0,0 +1,126 @@
+<?php
+namespace GraphQL\Tests\Utils;
+
+
+use GraphQL\Utils;
+use GraphQL\Utils\MixedStore;
+
+class MixedStoreTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var MixedStore
+     */
+    private $mixedStore;
+
+    public function setUp()
+    {
+        $this->mixedStore = new MixedStore();
+    }
+
+    public function getPossibleValues()
+    {
+        return [
+            null,
+            false,
+            true,
+            '',
+            '0',
+            '1',
+            'a',
+            [],
+            new \stdClass(),
+            function() {},
+            new MixedStore()
+        ];
+    }
+
+    public function testAcceptsNullKeys()
+    {
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue(null, $value);
+        }
+    }
+
+    public function testAcceptsBoolKeys()
+    {
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue(false, $value);
+        }
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue(true, $value);
+        }
+    }
+
+    public function testAcceptsIntKeys()
+    {
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue(-100000, $value);
+            $this->assertAcceptsKeyValue(-1, $value);
+            $this->assertAcceptsKeyValue(0, $value);
+            $this->assertAcceptsKeyValue(1, $value);
+            $this->assertAcceptsKeyValue(1000000, $value);
+        }
+    }
+
+    public function testAcceptsFloatKeys()
+    {
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue(-100000.5, $value);
+            $this->assertAcceptsKeyValue(-1.6, $value);
+            $this->assertAcceptsKeyValue(-0.0001, $value);
+            $this->assertAcceptsKeyValue(0.0000, $value);
+            $this->assertAcceptsKeyValue(0.0001, $value);
+            $this->assertAcceptsKeyValue(1.6, $value);
+            $this->assertAcceptsKeyValue(1000000.5, $value);
+        }
+    }
+
+    public function testAcceptsArrayKeys()
+    {
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue([], $value);
+            $this->assertAcceptsKeyValue([null], $value);
+            $this->assertAcceptsKeyValue([[]], $value);
+            $this->assertAcceptsKeyValue([new \stdClass()], $value);
+            $this->assertAcceptsKeyValue(['a', 'b'], $value);
+            $this->assertAcceptsKeyValue(['a' => 'b'], $value);
+        }
+    }
+
+    public function testAcceptsObjectKeys()
+    {
+        foreach ($this->getPossibleValues() as $value) {
+            $this->assertAcceptsKeyValue(new \stdClass(), $value);
+            $this->assertAcceptsKeyValue(new MixedStore(), $value);
+            $this->assertAcceptsKeyValue(function() {}, $value);
+        }
+    }
+
+    private function assertAcceptsKeyValue($key, $value)
+    {
+        $err = 'Failed assertion that MixedStore accepts key ' .
+            Utils::printSafe($key) . ' with value ' .  Utils::printSafe($value);
+
+        $this->assertFalse($this->mixedStore->offsetExists($key), $err);
+        $this->mixedStore->offsetSet($key, $value);
+        $this->assertTrue($this->mixedStore->offsetExists($key), $err);
+        $this->assertSame($value, $this->mixedStore->offsetGet($key), $err);
+        $this->mixedStore->offsetUnset($key);
+        $this->assertFalse($this->mixedStore->offsetExists($key), $err);
+        $this->assertProvidesArrayAccess($key, $value);
+    }
+
+    private function assertProvidesArrayAccess($key, $value)
+    {
+        $err = 'Failed assertion that MixedStore provides array access for key ' .
+            Utils::printSafe($key) . ' with value ' .  Utils::printSafe($value);
+
+        $this->assertFalse(isset($this->mixedStore[$key]), $err);
+        $this->mixedStore[$key] = $value;
+        $this->assertTrue(isset($this->mixedStore[$key]), $err);
+        $this->assertEquals(!empty($value), !empty($this->mixedStore[$key]), $err);
+        $this->assertSame($value, $this->mixedStore[$key], $err);
+        unset($this->mixedStore[$key]);
+        $this->assertFalse(isset($this->mixedStore[$key]), $err);
+    }
+}