Encapsulate ref: pushRef returns an object

This patch affects a few methods which use the output of pushRef.

Bug: T353451
Change-Id: I10b3fe89406c11cdaede92f18a4b96586ecaf5a0

src/FootnoteMarkFormatter.php

@@ -36,26 +36,26 @@ class FootnoteMarkFormatter {
 	 * @suppress SecurityCheck-DoubleEscaped
 	 * @param Parser $parser
 	 * @param string $group
-	 * @param array $ref Dictionary with ReferenceStack ref format
+	 * @param ReferenceStackItem $ref
 	 *
 	 * @return string
 	 */
-	public function linkRef( Parser $parser, string $group, array $ref ): string {
-		$label = $this->getLinkLabel( $parser, $group, $ref['number'] );
+	public function linkRef( Parser $parser, string $group, ReferenceStackItem $ref ): string {
+		$label = $this->getLinkLabel( $parser, $group, $ref->number );
 		if ( $label === null ) {
-			$label = $this->messageLocalizer->localizeDigits( $ref['number'] );
+			$label = $this->messageLocalizer->localizeDigits( (string)$ref->number );
 			if ( $group !== Cite::DEFAULT_GROUP ) {
 				$label = "$group $label";
 			}
 		}
-		if ( isset( $ref['extendsIndex'] ) ) {
-			$label .= '.' . $this->messageLocalizer->localizeDigits( $ref['extendsIndex'] );
+		if ( isset( $ref->extendsIndex ) ) {
+			$label .= '.' . $this->messageLocalizer->localizeDigits( (string)$ref->extendsIndex );
 		}
 
-		$key = $ref['name'] ?? $ref['key'];
+		$key = $ref->name ?? $ref->key;
 		// TODO: Use count without decrementing.
-		$count = $ref['name'] ? $ref['key'] . '-' . ( $ref['count'] - 1 ) : null;
-		$subkey = $ref['name'] ? '-' . $ref['key'] : null;
+		$count = $ref->name ? $ref->key . '-' . ( $ref->count - 1 ) : null;
+		$subkey = $ref->name ? '-' . $ref->key : null;
 
 		return $parser->recursiveTagParse(
 			$this->messageLocalizer->msg(

src/ReferenceStack.php

@@ -68,7 +68,7 @@ class ReferenceStack {
 	 * @param ?string $follow Guaranteed to not be a numeric string
 	 * @param ?string $dir ref direction
 	 *
-	 * @return ?array ref structure, or null if no footnote marker should be rendered
+	 * @return ?ReferenceStackItem ref structure, or null if no footnote marker should be rendered
 	 */
 	public function pushRef(
 		StripState $stripState,
@@ -79,7 +79,7 @@ class ReferenceStack {
 		?string $extends,
 		?string $follow,
 		?string $dir
-	): ?array {
+	): ?ReferenceStackItem {
 		$this->refs[$group] ??= [];
 		$this->groupRefSequence[$group] ??= 0;
 
@@ -183,7 +183,7 @@ class ReferenceStack {
 		}
 
 		$this->refCallStack[] = [ $action, $ref->key, $group, $name, $extends, $text, $argv ];
-		return (array)$ref;
+		return $ref;
 	}
 
 	/**

tests/phpunit/integration/FootnoteMarkFormatterTest.php

@@ -6,6 +6,7 @@ use Cite\AnchorFormatter;
 use Cite\ErrorReporter;
 use Cite\FootnoteMarkFormatter;
 use Cite\ReferenceMessageLocalizer;
+use Cite\Tests\TestUtils;
 use Message;
 use Parser;
 use Wikimedia\TestingAccessWrapper;
@@ -52,6 +53,7 @@ class FootnoteMarkFormatterTest extends \MediaWikiIntegrationTestCase {
 			$messageLocalizer
 		);
 
+		$ref = TestUtils::refFromArray( $ref );
 		$output = $formatter->linkRef( $mockParser, $group, $ref );
 		$this->assertSame( $expectedOutput, $output );
 	}

tests/phpunit/unit/ReferenceStackTest.php

@@ -43,10 +43,8 @@ class ReferenceStackTest extends \MediaWikiUnitTestCase {
 
 			$this->assertArrayHasKey( $i, $expectedOutputs,
 				'Bad test, not enough expected outputs in fixture.' );
-			$expectedOutput = $expectedOutputs[$i]
-				? (array)TestUtils::refFromArray( $expectedOutputs[$i] )
-				: null;
-			$this->assertEquals( $expectedOutput, $result );
+			$expectedRef = TestUtils::refFromArray( $expectedOutputs[$i] );
+			$this->assertEquals( $expectedRef, $result );
 		}
 
 		$finalRefs = TestUtils::refGroupsFromArray( $finalRefs );