Struct CallUnstable

pub(crate) struct CallUnstable {
    pub def_id: DefId,
    pub feature: Symbol,
    pub feature_enabled: bool,
    pub safe_to_expose_on_stable: bool,
    pub suggestion_span: Option<Span>,
    pub is_function_call: bool,
}

A call to an #[unstable] const fn, #[rustc_const_unstable] function or trait.

Contains the name of the feature that would allow the use of this function/trait.

Fields

def_id: DefId

feature: Symbol

feature_enabled: bool

If this is true, then the feature is enabled, but we need to still check if it is safe to expose on stable.

safe_to_expose_on_stable: bool

suggestion_span: Option<Span>

is_function_call: bool

true if def_id is the function we are calling, false if def_id is an unstable trait.

Trait Implementations

impl Debug for CallUnstable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'tcx> NonConstOp<'tcx> for CallUnstable

fn status_in_item(&self, _ccx: &ConstCx<'_, 'tcx>) -> Status

Returns an enum indicating whether this operation can be enabled with a feature gate.

fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> Diag<'tcx>

fn importance(&self) -> DiagImportance

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 28 bytes