Enum rustc_infer::infer::RegionVariableOrigin

pub enum RegionVariableOrigin {
    MiscVariable(Span),
    PatternRegion(Span),
    AddrOfRegion(Span),
    Autoref(Span),
    Coercion(Span),
    EarlyBoundRegion(Span, Symbol),
    LateBoundRegion(Span, BoundRegionKind, LateBoundRegionConversionTime),
    UpvarRegion(UpvarId, Span),
    Nll(NllRegionVariableOrigin),
}

Reasons to create a region inference variable.

See error_reporting module for more details.

Variants

MiscVariable(Span)

Region variables created for ill-categorized reasons.

They mostly indicate places in need of refactoring.

PatternRegion(Span)

Regions created by a &P or [...] pattern.

AddrOfRegion(Span)

Regions created by & operator.

Autoref(Span)

Regions created as part of an autoref of a method receiver.

Coercion(Span)

Regions created as part of an automatic coercion.

EarlyBoundRegion(Span, Symbol)

Region variables created as the values for early-bound regions.

LateBoundRegion(Span, BoundRegionKind, LateBoundRegionConversionTime)

Region variables created for bound regions in a function or method that is called.

UpvarRegion(UpvarId, Span)

Nll(NllRegionVariableOrigin)

This origin is used for the inference variables that we create during NLL region processing.

Implementations

impl RegionVariableOrigin

pub fn span(&self) -> Span

Trait Implementations

impl Clone for RegionVariableOrigin

fn clone(&self) -> RegionVariableOrigin

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RegionVariableOrigin

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

Formats the value using the given formatter.

impl Copy for RegionVariableOrigin

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

Size for each variant:

• MiscVariable: 12 bytes
• PatternRegion: 12 bytes
• AddrOfRegion: 12 bytes
• Autoref: 12 bytes
• Coercion: 12 bytes
• EarlyBoundRegion: 16 bytes
• LateBoundRegion: 28 bytes
• UpvarRegion: 24 bytes
• Nll: 24 bytes