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 Aliases

• GateFn 🔒
• GatedCfg