Enum ErrorSource 

pub enum ErrorSource {
    Compilation,
    Lsp,
    References,
    Picker,
}

Which producer a run of error entries came from.

EP.1 (2026-08-10): the error list is shared by more than one producer, and a write replaces only its own source’s slice. Without the tag a write is a clobber: the language server republishes on every edit-debounce, so a live diagnostic feed would overwrite a compile run’s entries while the user is walking them.

Deliberately a small closed enum. A Plugin(id) variant lands with the plugin path — the boundary currently refuses SetErrorList outright, and tagging is the precondition for lifting that, not a reason to speculate about the shape now.

See docs/dev/architecture/error-list.md §3.1.

Variants

Compilation

lattice-compilation — :compile / :recompile output parsed into entries.

Lsp

lattice-lsp — publishDiagnostics, coalesced.

References

lattice-lsp — reference sites from a textDocument/references query. Not errors; the list is a navigable set of source locations and fifteen call sites is exactly that. Opt-in via lsp.references-to-error-list (default off) — see error-list.md §3.2b.

Picker

LR.5 — the user sent a picker’s filtered results here with <C-q> (telescope’s send_to_qflist). Deliberately ONE slice for every picker: the defining fact is “I sent these”, not which picker they came from, and a second <C-q> replaces the first exactly as telescope’s does.

Implementations

impl ErrorSource

pub const PRESENTATION_ORDER: [ErrorSource; 4]

Fixed presentation order. Slices concatenate in this order and each keeps its producer’s own ordering — producer order carries meaning (rustc emits the root cause ahead of the errors it cascades into), so sorting the merged list would destroy it.

pub fn label(self) -> &'static str

Short label for echoes and filters.

Trait Implementations

impl Clone for ErrorSource

fn clone(&self) -> ErrorSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ErrorSource

impl Debug for ErrorSource

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ErrorSource

fn deserialize<__D>( __deserializer: __D, ) -> Result<ErrorSource, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ErrorSource

impl Hash for ErrorSource

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ErrorSource

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ErrorSource

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ErrorSource