Struct FeaturesManager 

pub struct FeaturesManager(Features);

Helper structure used to store the required Features needed to output a Module

Provides helper methods to check for availability and writing required extensions

Tuple Fields

0: Features

Implementations

impl FeaturesManager

pub const fn new() -> Self

Creates a new FeaturesManager instance

pub fn request(&mut self, features: Features)

Adds to the list of required Features

pub fn contains(&mut self, features: Features) -> bool

Checks if the list of features Features contains the specified Features

pub fn check_availability(&self, version: Version) -> Result<(), Error>

Checks that all required Features are available for the specified Version otherwise returns an Error::MissingFeatures.

pub fn write(&self, options: &Options, out: impl Write) -> Result<(), Error>

Helper method used to write all needed extensions

Notes

This won’t check for feature availability so it might output extensions that aren’t even supported.check_availability will check feature availability