Module rustc_feature::builtin_attrs

Built-in attributes and cfg flag gating.

Macros

cfg_fn 🔒

experimental 🔒

gated 🔒

or_default 🔒

A convenience macro to deal with $($expr)?.

rustc_attr 🔒

template 🔒

A convenience macro for constructing attribute templates. E.g., template!(Word, List: "description") means that the attribute supports forms #[attr] and #[attr(description)].

ungated 🔒

Structs

AttributeTemplate

A template that the attribute input must match. Only top-level shape (#[attr] vs #[attr(...)] vs #[attr = ...]) is considered now.

BuiltinAttribute

Enums

AttributeDuplicates

How to handle multiple duplicate attributes on the same item.

AttributeGate

AttributeType

Constants

BUILTIN_ATTRIBUTES

Attributes that have a special meaning to rustc or rustdoc.

GATED_CFGS 🔒

cfg(...)’s that are feature gated.

IMPL_DETAIL 🔒

INTERNAL_UNSTABLE 🔒

Statics

BUILTIN_ATTRIBUTE_MAP

Functions

deprecated_attributes

find_gated_cfg

Find a gated cfg determined by the predicate which is given the cfg’s name.

is_builtin_attr_name

is_builtin_only_local

Whether this builtin attribute is only used in the local crate. If so, it is not encoded in the crate metadata.

is_valid_for_get_attr

Type Definitions

GateFn 🔒

GatedCfg