Enum rustc_span::ExternalSourceKind

pub enum ExternalSourceKind {
    Present(Lrc<String>),
    AbsentOk,
    AbsentErr,
    Unneeded,
}

The state of the lazy external source loading mechanism of a SourceFile.

Variants

Present(Lrc<String>)

The external source has been loaded already.

AbsentOk

No attempt has been made to load the external source.

AbsentErr

A failed attempt has been made to load the external source.

Unneeded

Trait Implementations

impl Clone for ExternalSourceKind

fn clone(&self) -> ExternalSourceKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExternalSourceKind

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

Formats the value using the given formatter.

impl PartialEq<ExternalSourceKind> for ExternalSourceKind

fn eq(&self, other: &ExternalSourceKind) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ExternalSourceKind

impl StructuralEq for ExternalSourceKind

impl StructuralPartialEq for ExternalSourceKind

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: 16 bytes

Size for each variant:

• Present: 8 bytes
• AbsentOk: 0 bytes
• AbsentErr: 0 bytes
• Unneeded: 0 bytes