wp-includes/query.php:1269Generates post data.
$postWP_Post|object|intarray|falsefunction generate_postdata( $post ) { global $wp_query; if ( ! empty( $wp_query ) && $wp_query instanceof WP_Query ) { return $wp_query->generate_postdata( $post ); } return false;}Introduced in 5.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.