Struct rustc_query_system::query::QueryStackFrame

pub struct QueryStackFrame {
    pub name: &'static str,
    pub description: String,
    span: Option<Span>,
    def_kind: Option<SimpleDefKind>,
}

Description of a frame in the query stack.

This is mostly used in case of cycles for error reporting.

Fields

name: &'static str

description: String

span: Option<Span>

def_kind: Option<SimpleDefKind>

The DefKind this query frame is associated with, if applicable.

We can’t use rustc_hir::def::DefKind because rustc_hir is not available in rustc_query_system. Instead, we have a simplified custom version of it, called SimpleDefKind.

Implementations

impl QueryStackFrame

pub fn new(
    name: &'static str,
    description: String,
    span: Option<Span>,
    def_kind: Option<SimpleDefKind>,
    _hash: impl FnOnce() -> u64
) -> Self

pub fn default_span(&self, span: Span) -> Span

Trait Implementations

impl Clone for QueryStackFrame

fn clone(&self) -> QueryStackFrame

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for QueryStackFrame

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: 56 bytes