Fix "Call to a member function has_child_node() on null"

JanJakes · JanJakes · commit d982450ef97f · 2025-11-06T15:58:48.000+01:00
diff --git a/wp-includes/sqlite-ast/class-wp-sqlite-information-schema-builder.php b/wp-includes/sqlite-ast/class-wp-sqlite-information-schema-builder.php
@@ -2073,12 +2073,12 @@ private function get_column_default( WP_Parser_Node $node ): ?string {
 			$literal = $signed_literal->get_first_child_node( 'literal' );
 
 			// DEFAULT NULL
-			if ( $literal->has_child_node( 'nullLiteral' ) ) {
+			if ( $literal && $literal->has_child_node( 'nullLiteral' ) ) {
 				return null;
 			}
 
 			// DEFAULT TRUE or DEFAULT FALSE
-			if ( $literal->has_child_node( 'boolLiteral' ) ) {
+			if ( $literal && $literal->has_child_node( 'boolLiteral' ) ) {
 				$bool_literal = $literal->get_first_child_node( 'boolLiteral' );
 				return $bool_literal->has_child_token( WP_MySQL_Lexer::TRUE_SYMBOL ) ? '1' : '0';
 			}

Original file line number	Diff line number	Diff line change
`@@ -2073,12 +2073,12 @@ private function get_column_default( WP_Parser_Node $node ): ?string {`
`2073`	`2073`	`$literal = $signed_literal->get_first_child_node( 'literal' );`
`2074`	`2074`
`2075`	`2075`	`// DEFAULT NULL`
`2076`		`- if ( $literal->has_child_node( 'nullLiteral' ) ) {`
	`2076`	`+ if ( $literal && $literal->has_child_node( 'nullLiteral' ) ) {`
`2077`	`2077`	`return null;`
`2078`	`2078`	`}`
`2079`	`2079`
`2080`	`2080`	`// DEFAULT TRUE or DEFAULT FALSE`
`2081`		`- if ( $literal->has_child_node( 'boolLiteral' ) ) {`
	`2081`	`+ if ( $literal && $literal->has_child_node( 'boolLiteral' ) ) {`
`2082`	`2082`	`$bool_literal = $literal->get_first_child_node( 'boolLiteral' );`
`2083`	`2083`	`return $bool_literal->has_child_token( WP_MySQL_Lexer::TRUE_SYMBOL ) ? '1' : '0';`
`2084`	`2084`	`}`