[−][src]Trait rustc_ap_rustc_span::HashStableContext

pub trait HashStableContext {
    fn hash_spans(&self) -> bool;
    fn hash_def_id(&mut self, _: DefId, hasher: &mut StableHasher);
    fn byte_pos_to_line_and_col(
        &mut self, 
        byte: BytePos
    ) -> Option<(Lrc<SourceFile>, usize, BytePos)>;
}

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 librustc.

Required methods

`fn hash_spans(&self) -> bool`

`fn hash_def_id(&mut self, _: DefId, hasher: &mut StableHasher)`

`fn byte_pos_to_line_and_col( &mut self, byte: BytePos ) -> Option<(Lrc<SourceFile>, usize, BytePos)>`

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Implementors