WP_Theme::get_stylesheet_directory()

Source

File: wp-includes/class-wp-theme.php

public function get_stylesheet_directory() {
		if ( $this->errors() && in_array( 'theme_root_missing', $this->errors()->get_error_codes(), true ) ) {
			return '';
		}

		return $this->theme_root . '/' . $this->stylesheet;
	}