diff --git a/src/Readers/AbstractReader.php b/src/Readers/AbstractReader.php
new file mode 100644
index 0000000..857891f
--- /dev/null
+++ b/src/Readers/AbstractReader.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Haemanthus\CodeIgniter3IdeHelper\Readers;
+
+abstract class AbstractReader
+{
+    /**
+     * Undocumented variable
+     *
+     * @var array<string, array<string, string>>
+     */
+    protected $map = [
+        'cores' => [
+            'benchmark' => '\CI_Benchmark',
+            'config' => '\CI_Config',
+            'input' => '\CI_Input',
+            'lang' => '\CI_Lang',
+            'loader' => '\CI_Loader',
+            'output' => '\CI_Output',
+            'security' => '\CI_Security',
+            'uri' => '\CI_URI',
+        ],
+        'libraries' => [
+            'cache' => '\CI_Cache',
+            'calendar' => '\CI_Calendar',
+            'driver' => '\CI_Driver',
+            'email' => '\CI_Email',
+            'encryption' => '\CI_Encryption',
+            'form_validation' => '\CI_Form_validation',
+            'ftp' => '\CI_Ftp',
+            'image_lib' => '\CI_Image_lib',
+            'migration' => '\CI_Migration',
+            'pagination' => '\CI_Pagination',
+            'parser' => '\CI_Parser',
+            'profiler' => '\CI_Profiler',
+            'session' => '\CI_Session',
+            'table' => '\CI_Table',
+            'trackback' => '\CI_Trackback',
+            'typography' => '\CI_Typography',
+            'unit_test' => '\CI_Unit_test',
+            'upload' => '\CI_Upload',
+            'user_agent' => '\CI_User_agent',
+            'xmlrpc' => '\CI_Xmlrpc',
+            'xmlrpcs' => '\CI_Xmlrpcs',
+            'zip' => '\CI_Zip',
+        ],
+    ];
+}
diff --git a/src/Readers/AutoloadReader.php b/src/Readers/AutoloadReader.php
new file mode 100644
index 0000000..8133f69
--- /dev/null
+++ b/src/Readers/AutoloadReader.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Haemanthus\CodeIgniter3IdeHelper\Readers;
+
+class AutoloadReader extends AbstractReader
+{
+    /**
+     * Undocumented variable
+     *
+     * @var string
+     */
+    protected $dir = './';
+
+    /**
+     * Undocumented variable
+     *
+     * @var string $path
+     */
+    protected $path = './application/config/autoload.php';
+
+    /**
+     * Undocumented variable
+     *
+     * @var array<string, array<int, string>>
+     */
+    protected $autoload = [
+        'cores' => [
+            'benchmark',
+            'config',
+            'input',
+            'lang',
+            'loader',
+            'output',
+            'security',
+            'uri',
+        ],
+    ];
+
+    /**
+     * Undocumented function
+     *
+     * @param string $dir
+     */
+    public function __construct($dir)
+    {
+        $this->dir = $dir;
+    }
+}
diff --git a/src/Readers/ControllerReader.php b/src/Readers/ControllerReader.php
new file mode 100644
index 0000000..23e6faf
--- /dev/null
+++ b/src/Readers/ControllerReader.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Haemanthus\CodeIgniter3IdeHelper\Readers;
+
+class ControllerReader extends AbstractReader
+{
+    /**
+     * Undocumented variable
+     *
+     * @var string
+     */
+    protected $dir = './';
+
+    /**
+     * Undocumented variable
+     *
+     * @var string $path
+     */
+    protected $path = './application/controllers/';
+
+    /**
+     * Undocumented function
+     *
+     * @param string $dir
+     */
+    public function __construct($dir)
+    {
+        $this->dir = $dir;
+    }
+}
diff --git a/src/Readers/DataClass.php b/src/Readers/DataClass.php
new file mode 100644
index 0000000..48f3b92
--- /dev/null
+++ b/src/Readers/DataClass.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Haemanthus\CodeIgniter3IdeHelper\Readers;
+
+class DataClass
+{
+    /**
+     * Undocumented variable
+     *
+     * @var string
+     */
+    public $className;
+
+    /**
+     * Undocumented variable
+     *
+     * @var array<DataProperty>
+     */
+    public $properties;
+}
diff --git a/src/Readers/DataProperty.php b/src/Readers/DataProperty.php
new file mode 100644
index 0000000..923ef9a
--- /dev/null
+++ b/src/Readers/DataProperty.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Haemanthus\CodeIgniter3IdeHelper\Readers;
+
+class DataProperty
+{
+    /**
+     * Undocumented variable
+     *
+     * @var string
+     */
+    public $key;
+
+    /**
+     * Undocumented variable
+     *
+     * @var string
+     */
+    public $object;
+}
diff --git a/src/Readers/ModelReader.php b/src/Readers/ModelReader.php
new file mode 100644
index 0000000..8836d25
--- /dev/null
+++ b/src/Readers/ModelReader.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Haemanthus\CodeIgniter3IdeHelper\Readers;
+
+class ModelReader extends AbstractReader
+{
+    /**
+     * Undocumented variable
+     *
+     * @var string
+     */
+    protected $dir = './';
+
+    /**
+     * Undocumented variable
+     *
+     * @var string $path
+     */
+    protected $path = './application/models/';
+
+    /**
+     * Undocumented function
+     *
+     * @param string $dir
+     */
+    public function __construct($dir)
+    {
+        $this->dir = $dir;
+    }
+}