wp-includes/html-api/class-wp-html-processor-state.php:450Constructor - creates a new and empty state value.
public function __construct() { $this->stack_of_open_elements = new WP_HTML_Open_Elements(); $this->active_formatting_elements = new WP_HTML_Active_Formatting_Elements(); }Introduced in 6.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/html-api/class-wp-html-processor-state.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.