Trait rustc_span::HashStableContext

pub trait HashStableContext {
    // Required methods
    fn def_path_hash(&self, def_id: DefId) -> DefPathHash;
    fn hash_spans(&self) -> bool;
    fn unstable_opts_incremental_ignore_spans(&self) -> bool;
    fn def_span(&self, def_id: LocalDefId) -> Span;
    fn span_data_to_lines_and_cols(
        &mut self,
        span: &SpanData
    ) -> Option<(Lrc<SourceFile>, usize, BytePos, usize, BytePos)>;
    fn hashing_controls(&self) -> HashingControls;
}

Requirements for a StableHashingContext to be used in this crate.

This is a hack to allow using the HashStable_Generic derive macro instead of implementing everything in rustc_middle.

Required Methods

fn def_path_hash(&self, def_id: DefId) -> DefPathHash

fn hash_spans(&self) -> bool

fn unstable_opts_incremental_ignore_spans(&self) -> bool

Accesses sess.opts.unstable_opts.incremental_ignore_spans since we don’t have easy access to a Session

fn def_span(&self, def_id: LocalDefId) -> Span

fn span_data_to_lines_and_cols( &mut self, span: &SpanData ) -> Option<(Lrc<SourceFile>, usize, BytePos, usize, BytePos)>

fn hashing_controls(&self) -> HashingControls

Implementors