feature() = atom()
feature() = atom()
Module
erl_features
Module Summary
Feature support.
Since
Module erl_features was introduced in OTP 25.0.
Description
This module contains functions for supporting features that can be enabled/disabled in Erlang. It should be considered as mostly for internal use, although there are some functions that might be useful when writing tools.
Data Types
release() = integer() >= 0
release() = integer() >= 0
status() = experimental | approved | permanent | rejected
status() = experimental | approved | permanent | rejected
type() = extension | backwards_incompatible_change
type() = extension | backwards_incompatible_change
Exports
all() -> [feature()]
OTP 25.0
Return a list of all known features.
info(Feature :: feature()) -> FeatureInfoMap | no_return()
OTP 25.0
Types
Return a map containing information about the given feature.
enabled() -> [feature()]
OTP 25.0
Return a list of the features that are currently enabled. Note that the set of enabled is set during startup and can then not be changed.
used(Module :: module() | file:filename()) -> [feature()]
OTP 25.0
Return the list of features enabled when compiling the module. The module need not be loaded, but is found if it exists in the loadpath. If not all features used by the module are enabled in the runtime, loading the module is not allowed.
© 2010–2022 Ericsson AB
Licensed under the Apache License, Version 2.0.
