Module syntax::feature_gateExperimental
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Feature gating
This modules implements the gating necessary for preventing certain compiler features from being used by default. This module will crawl a pre-expanded AST to ensure that there are no features which are used that are not enabled.
Features are enabled in programs via the crate-level attributes of
#![feature(...)]
with a comma-separated list of features.
Structs
Features | A set of features to be used by later passes. |
Functions
check_crate | |
check_crate_macros |