Struct ExpnNode 

pub(crate) struct ExpnNode {
    pub(crate) expn_id: ExpnId,
    pub(crate) expn_kind: ExpnKind,
    pub(crate) call_site: Option<Span>,
    pub(crate) call_site_expn_id: Option<ExpnId>,
    pub(crate) fn_sig_span: Option<Span>,
    pub(crate) body_span: Option<Span>,
    pub(crate) spans: Vec<SpanWithBcb>,
    pub(crate) child_expn_ids: FxIndexSet<ExpnId>,
    pub(crate) branch_spans: Vec<BranchSpan>,
    pub(crate) hole_spans: Vec<Span>,
}

Fields

expn_id: ExpnId

Storing the expansion ID in its own node is not strictly necessary, but is helpful for debugging and might be useful later.

expn_kind: ExpnKind

call_site: Option<Span>

Non-dummy ExpnData::call_site span.

call_site_expn_id: Option<ExpnId>

Expansion ID of call_site, if present. This links an expansion node to its parent in the tree.

fn_sig_span: Option<Span>

Holds the function signature span, if it belongs to this expansion. Used by special-case code in span refinement.

body_span: Option<Span>

Holds the function body span, if it belongs to this expansion. Used by special-case code in span refinement.

spans: Vec<SpanWithBcb>

Spans (and their associated BCBs) belonging to this expansion.

child_expn_ids: FxIndexSet<ExpnId>

Expansions whose call-site is in this expansion.

branch_spans: Vec<BranchSpan>

Branch spans (recorded during MIR building) belonging to this expansion.

hole_spans: Vec<Span>

Hole spans belonging to this expansion, to be carved out from the code spans during span refinement.

Implementations

impl ExpnNode

fn new(expn_id: ExpnId) -> Self

Trait Implementations

impl Debug for ExpnNode

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

Formats the value using the given formatter.

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: 192 bytes