WP_Interactivity_API::data_wp_context_processor( WP_Interactivity_API_Directives_Processor $p, string $mode, array $context_stack, array $namespace_stack )

Source

	 * not safe to process. In that case, the Interactivity API runtime will
	 * update the HTML on the client side during the hydration. It will also
	 * display a notice to the developer to inform them about the issue.
	 */
	if ( $unbalanced || 0 < count( $tag_stack ) ) {
		$tag_errored = 0 < count( $tag_stack ) ? end( $tag_stack )[0] : $tag_name;
		/* translators: %1s: Namespace processed, %2s: The tag that caused the error; could be any HTML tag.  */
		$message = sprintf( __( 'Interactivity directives failed to process in "%1$s" due to a missing "%2$s" end tag.' ), end( $this->namespace_stack ), $tag_errored );
		_doing_it_wrong( __METHOD__, $message, '6.6.0' );
		return null;
	}

	return $p->get_updated_html();
}

/**
 * Evaluates the reference path passed to a directive based on the current
 * store namespace, state and context.
 *
 * @since 6.5.0
 * @since 6.6.0 The function now adds a warning when the namespace is null, falsy, or the directive value is empty.
 * @since 6.6.0 Removed `default_namespace` and `context` arguments.
 * @since 6.6.0 Add support for derived state.
 *
 * @param string|true $directive_value The directive attribute value string or `true` when it's a boolean attribute.
 * @return mixed|null The result of the evaluation. Null if the reference path doesn't exist or the namespace is falsy.
 */
private function evaluate( $directive_value ) {
	$default_namespace = end( $this->namespace_stack );
	$context           = end( $this->context_stack );

	list( $ns, $path ) = $this->extract_directive_value( $directive_value, $default_namespace );
	if ( ! $ns || ! $path ) {

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