Enum rustc_trait_selection::infer::RegionVariableOrigin[−][src]

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),
}
Expand description

Reasons to create a region inference variable

See error_reporting module for more details

Variants

MiscVariable(Span)

Tuple Fields

0: Span

Region variables created for ill-categorized reasons, mostly indicates places in need of refactoring

PatternRegion(Span)

Tuple Fields

0: Span

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

AddrOfRegion(Span)

Tuple Fields

0: Span

Regions created by & operator

Autoref(Span)

Tuple Fields

0: Span

Regions created as part of an autoref of a method receiver

Coercion(Span)

Tuple Fields

0: Span

Regions created as part of an automatic coercion

EarlyBoundRegion(Span, Symbol)

Tuple Fields

0: Span
1: 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)

Tuple Fields

0: UpvarId
1: Span

Nll(NllRegionVariableOrigin)

Tuple Fields

0: NllRegionVariableOrigin

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

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

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: 36 bytes

Size for each variant:

  • MiscVariable: 8 bytes
  • PatternRegion: 8 bytes
  • AddrOfRegion: 8 bytes
  • Autoref: 8 bytes
  • Coercion: 8 bytes
  • EarlyBoundRegion: 12 bytes
  • LateBoundRegion: 32 bytes
  • UpvarRegion: 20 bytes
  • Nll: 24 bytes