Module rustc_attr::builtin
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Parsing and validation of builtin attributes
Structs
Represents the
#[rustc_const_unstable] and #[rustc_const_stable] attributes.Represents the
#[rustc_default_body_unstable] attribute.Represents the following attributes:
Version 🔒
Enums
The available stability levels.
Constants
The version placeholder that recently stabilized features contain inside the
since field of the #[stable] attribute.Functions
Tests if a cfg-pattern matches the cfg set
Evaluate a cfg-like condition (with
any and all), using eval to
evaluate individual items.Finds the deprecation attribute.
None if none exists.Parse #[repr(…)] forms.
Collects stability info from all stability attributes in
attrs.
Returns None if no stability attributes are found.gate_cfg 🔒