Automattic / jetpack

	private function script_has_deps( $handle ) {

		global $wp_scripts;

				foreach ( $wp_scripts->to_do as $other_script_handle ) {

						$other_script = $wp_scripts->registered[ $other_script_handle ];

						if ( in_array( $handle, $other_script->deps ) ) {

				return true;

						}

				}

		return false;

	}

		$should_defer_script = $script->args === 0;

		// only make scripts deferred if nothing depends on them

		foreach ( $wp_scripts->to_do as $other_script_handle ) {

			$other_script = $wp_scripts->registered[ $other_script_handle ];

			if ( in_array( $script->handle, $other_script->deps ) ) {

				$should_defer_script = false;

				break;

			}

		}

		$should_defer_script = $should_defer_script || ( isset( $script->extra['jetpack-defer'] ) && $script->extra['jetpack-defer'] );

		return $this->defer_scripts && apply_filters( 'jetpack_perf_defer_script', $should_defer_script, $script->handle, $script->src );