SlevomatCodingStandard.Namespaces.ReferenceUsedNamesOnly: New option "allowWhenNoNamespace"

Author: kukulich

SlevomatCodingStandard/Sniffs/Namespaces/ReferenceUsedNamesOnlySniff.php

@@ -86,6 +86,9 @@ class ReferenceUsedNamesOnlySniff implements Sniff
 	/** @var bool */
 	public $allowFallbackGlobalConstants = true;
 
+	/** @var bool */
+	public $allowWhenNoNamespace = true;
+
 	/** @var list<string> */
 	public $specialExceptionNames = [];
 
@@ -140,6 +143,12 @@ public function process(File $phpcsFile, $openTagPointer): void
 			return;
 		}
 
+		$namespacePointers = NamespaceHelper::getAllNamespacesPointers($phpcsFile);
+
+		if ($namespacePointers === [] && !$this->allowWhenNoNamespace) {
+			return;
+		}
+
 		$tokens = $phpcsFile->getTokens();
 
 		$references = $this->getReferences($phpcsFile, $openTagPointer);
@@ -171,8 +180,6 @@ public function process(File $phpcsFile, $openTagPointer): void
 			);
 		}
 
-		$namespacePointers = NamespaceHelper::getAllNamespacesPointers($phpcsFile);
-
 		$referenceErrors = [];
 
 		foreach ($references as $reference) {

doc/namespaces.md

@@ -129,6 +129,7 @@ Sniff provides the following settings:
 * `allowFallbackGlobalFunctions`: allows using global functions via fallback name without `use` (i.e. `phpversion()`).
 * `allowFallbackGlobalConstants`: allows using global constants via fallback name without `use` (i.e. `PHP_VERSION`).
 * `allowPartialUses`: allows using and referencing whole namespaces.
+* `allowWhenNoNamespace` (default: `true`): force even when there's no namespace in the file.
 
 #### SlevomatCodingStandard.Namespaces.UseDoesNotStartWithBackslash 🔧
 

tests/Sniffs/Namespaces/ReferenceUsedNamesOnlySniffTest.php

@@ -1251,4 +1251,12 @@ public function testReservedWord(): void
 		self::assertNoSniffErrorInFile($report);
 	}
 
+	public function testDisabledWhenNoNamespace(): void
+	{
+		$report = self::checkFile(__DIR__ . '/data/referenceUsedNamesOnlyDisabledWhenNoNamespace.php', [
+			'allowWhenNoNamespace' => false,
+		]);
+		self::assertNoSniffErrorInFile($report);
+	}
+
 }

tests/Sniffs/Namespaces/data/referenceUsedNamesOnlyDisabledWhenNoNamespace.php

@@ -0,0 +1,3 @@
+<?php
+
+$latte = new Latte\Engine;