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+Code generation
+===============
+
+It is also possible to generate code using the parser, by first creating an Abstract Syntax Tree and then using the
+pretty printer to convert it to PHP code. To simplify code generation, the project comes with builders which allow
+creating node trees using a fluid interface, instead of instantiating all nodes manually. Builders are available for
+the following syntactic elements:
+
+ * namespaces and use statements
+ * classes, interfaces and traits
+ * methods, functions and parameters
+ * properties
+
+Here is an example:
+
+```php
+use PhpParser\BuilderFactory;
+use PhpParser\PrettyPrinter;
+use PhpParser\Node;
+
+$factory = new BuilderFactory;
+$node = $factory->namespace('Name\Space')
+    ->addStmt($factory->use('Some\Other\Thingy')->as('SomeOtherClass'))
+    ->addStmt($factory->class('SomeClass')
+        ->extend('SomeOtherClass')
+        ->implement('A\Few', '\Interfaces')
+        ->makeAbstract() // ->makeFinal()
+
+        ->addStmt($factory->method('someMethod')
+            ->makePublic()
+            ->makeAbstract() // ->makeFinal()
+            ->setReturnType('bool')
+            ->addParam($factory->param('someParam')->setTypeHint('SomeClass'))
+            ->setDocComment('/**
+                              * This method does something.
+                              *
+                              * @param SomeClass And takes a parameter
+                              */')
+        )
+
+        ->addStmt($factory->method('anotherMethod')
+            ->makeProtected() // ->makePublic() [default], ->makePrivate()
+            ->addParam($factory->param('someParam')->setDefault('test'))
+            // it is possible to add manually created nodes
+            ->addStmt(new Node\Expr\Print_(new Node\Expr\Variable('someParam')))
+        )
+
+        // properties will be correctly reordered above the methods
+        ->addStmt($factory->property('someProperty')->makeProtected())
+        ->addStmt($factory->property('anotherProperty')->makePrivate()->setDefault(array(1, 2, 3)))
+    )
+
+    ->getNode()
+;
+
+$stmts = array($node);
+$prettyPrinter = new PrettyPrinter\Standard();
+echo $prettyPrinter->prettyPrintFile($stmts);
+```
+
+This will produce the following output with the standard pretty printer:
+
+```php
+<?php
+
+namespace Name\Space;
+
+use Some\Other\Thingy as SomeClass;
+abstract class SomeClass extends SomeOtherClass implements A\Few, \Interfaces
+{
+    protected $someProperty;
+    private $anotherProperty = array(1, 2, 3);
+    /**
+     * This method does something.
+     *
+     * @param SomeClass And takes a parameter
+     */
+    public abstract function someMethod(SomeClass $someParam) : bool;
+    protected function anotherMethod($someParam = 'test')
+    {
+        print $someParam;
+    }
+}
+```