Printer: added option $omitEmptyNamespaces

Author: dg

readme.md

@@ -515,6 +515,8 @@ class MyPrinter extends Nette\PhpGenerator\Printer
 	public bool $bracesOnNextLine = true;
 	// place one parameter in one line, even if it has an attribute or is promoted
 	public bool $singleParameterOnOneLine = false;
+	// omits namespaces that do not contain any class or function
+	public bool $omitEmptyNamespaces = true;
 	// separator between the right parenthesis and return type of functions and methods
 	public string $returnTypeColon = ': ';
 }

src/PhpGenerator/Printer.php

@@ -26,6 +26,7 @@ class Printer
 	public string $returnTypeColon = ': ';
 	public bool $bracesOnNextLine = true;
 	public bool $singleParameterOnOneLine = false;
+	public bool $omitEmptyNamespaces = true;
 	protected ?PhpNamespace $namespace = null;
 	protected ?Dumper $dumper;
 	private bool $resolveTypes = true;
@@ -276,6 +277,10 @@ public function printNamespace(PhpNamespace $namespace): string
 			$items[] = $this->printFunction($function, $namespace);
 		}
 
+		if (!$items && $this->omitEmptyNamespaces) {
+			return '';
+		}
+
 		$body = ($uses ? $uses . "\n" : '')
 			. implode("\n", $items);
 

tests/PhpGenerator/Printer.use-order.phpt

@@ -9,6 +9,7 @@ require __DIR__ . '/../bootstrap.php';
 
 
 $printer = new Printer;
+$printer->omitEmptyNamespaces = false;
 $namespace = new PhpNamespace('Foo');
 $namespace->addUse('Example\Foo\EmailAlias\Bar');
 $namespace->addUse('Example\Foo\Email\Test');