Enum syntax::source_map::ExternalSource

pub enum ExternalSource {
    Present(String),
    AbsentOk,
    AbsentErr,
    Unneeded,
}

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

Variants

Present(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

No external source has to be loaded, since the SourceFile represents a local crate.

Methods

impl ExternalSource

pub fn is_absent(&self) -> bool

pub fn get_source(&self) -> Option<&str>

Trait Implementations

impl Clone for ExternalSource

fn clone(&self) -> ExternalSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for ExternalSource

impl PartialEq<ExternalSource> for ExternalSource

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

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

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

This method tests for !=.