From 9977c511808f4a098a6c1205e0d52e55e1a3a8a9 Mon Sep 17 00:00:00 2001
From: smiley <codemasher@users.noreply.github.com>
Date: Mon, 13 Mar 2023 15:14:59 +0100
Subject: [PATCH] :octocat: let QRDataModeInterface::write() return $this

---
 src/Data/AlphaNum.php            | 3 ++-
 src/Data/Byte.php                | 3 ++-
 src/Data/Hanzi.php               | 3 ++-
 src/Data/Kanji.php               | 3 ++-
 src/Data/Number.php              | 3 ++-
 src/Data/QRDataModeInterface.php | 2 +-
 6 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/Data/AlphaNum.php b/src/Data/AlphaNum.php
index 9840d9b7e..97724a669 100644
--- a/src/Data/AlphaNum.php
+++ b/src/Data/AlphaNum.php
@@ -69,7 +69,7 @@ final class AlphaNum extends QRDataModeAbstract{
 	/**
 	 * @inheritDoc
 	 */
-	public function write(BitBuffer $bitBuffer, int $versionNumber):void{
+	public function write(BitBuffer $bitBuffer, int $versionNumber):QRDataModeInterface{
 		$len = $this->getCharCount();
 
 		$bitBuffer
@@ -87,6 +87,7 @@ final class AlphaNum extends QRDataModeAbstract{
 			$bitBuffer->put(self::CHAR_TO_ORD[$this->data[$i]], 6);
 		}
 
+		return $this;
 	}
 
 	/**
diff --git a/src/Data/Byte.php b/src/Data/Byte.php
index 0e6fc6feb..bec065828 100644
--- a/src/Data/Byte.php
+++ b/src/Data/Byte.php
@@ -44,7 +44,7 @@ final class Byte extends QRDataModeAbstract{
 	/**
 	 * @inheritDoc
 	 */
-	public function write(BitBuffer $bitBuffer, int $versionNumber):void{
+	public function write(BitBuffer $bitBuffer, int $versionNumber):QRDataModeInterface{
 		$len = $this->getCharCount();
 
 		$bitBuffer
@@ -59,6 +59,7 @@ final class Byte extends QRDataModeAbstract{
 			$i++;
 		}
 
+		return $this;
 	}
 
 	/**
diff --git a/src/Data/Hanzi.php b/src/Data/Hanzi.php
index 7b4af8247..2f95fa1ad 100644
--- a/src/Data/Hanzi.php
+++ b/src/Data/Hanzi.php
@@ -120,7 +120,7 @@ final class Hanzi extends QRDataModeAbstract{
 	 *
 	 * @throws \chillerlan\QRCode\Data\QRCodeDataException on an illegal character occurence
 	 */
-	public function write(BitBuffer $bitBuffer, int $versionNumber):void{
+	public function write(BitBuffer $bitBuffer, int $versionNumber):QRDataModeInterface{
 
 		$bitBuffer
 			->put($this::$datamode, 4)
@@ -150,6 +150,7 @@ final class Hanzi extends QRDataModeAbstract{
 			throw new QRCodeDataException(sprintf('illegal char at %d', ($i + 1)));
 		}
 
+		return $this;
 	}
 
 	/**
diff --git a/src/Data/Kanji.php b/src/Data/Kanji.php
index 3c7bcd25b..7301243f6 100644
--- a/src/Data/Kanji.php
+++ b/src/Data/Kanji.php
@@ -118,7 +118,7 @@ final class Kanji extends QRDataModeAbstract{
 	 *
 	 * @throws \chillerlan\QRCode\Data\QRCodeDataException on an illegal character occurence
 	 */
-	public function write(BitBuffer $bitBuffer, int $versionNumber):void{
+	public function write(BitBuffer $bitBuffer, int $versionNumber):QRDataModeInterface{
 
 		$bitBuffer
 			->put($this::$datamode, 4)
@@ -147,6 +147,7 @@ final class Kanji extends QRDataModeAbstract{
 			throw new QRCodeDataException(sprintf('illegal char at %d', ($i + 1)));
 		}
 
+		return $this;
 	}
 
 	/**
diff --git a/src/Data/Number.php b/src/Data/Number.php
index 797d5d324..9c3c0ea6b 100644
--- a/src/Data/Number.php
+++ b/src/Data/Number.php
@@ -62,7 +62,7 @@ final class Number extends QRDataModeAbstract{
 	/**
 	 * @inheritDoc
 	 */
-	public function write(BitBuffer $bitBuffer, int $versionNumber):void{
+	public function write(BitBuffer $bitBuffer, int $versionNumber):QRDataModeInterface{
 		$len = $this->getCharCount();
 
 		$bitBuffer
@@ -91,6 +91,7 @@ final class Number extends QRDataModeAbstract{
 
 		}
 
+		return $this;
 	}
 
 	/**
diff --git a/src/Data/QRDataModeInterface.php b/src/Data/QRDataModeInterface.php
index 21c97e11b..cae9ae38d 100644
--- a/src/Data/QRDataModeInterface.php
+++ b/src/Data/QRDataModeInterface.php
@@ -44,7 +44,7 @@ interface QRDataModeInterface{
 	 *
 	 * @see \chillerlan\QRCode\Data\QRData::writeBitBuffer()
 	 */
-	public function write(BitBuffer $bitBuffer, int $versionNumber):void;
+	public function write(BitBuffer $bitBuffer, int $versionNumber):QRDataModeInterface;
 
 	/**
 	 * reads a segment from the BitBuffer and decodes in the current data mode